'■ag.ev.—-'.r*,'.^T  i"  <*•*  **"*»* 
m^^M;BL 
STUDENT  HANDOUT 
Digital  Topographic  Data 
I 
I DMS  NO.  ST  481 
DEFENSE 
MAPPING  SCHOOL 
FORT  BELVOIR,  VIRGINIA 
X 
t  J 
APR  1982
TABLE  OF  CONTENTS 
Page 
Introduction  } 
MC&G  Terms  2 
DMA  List  of  Approved  Products  8 
and  Services  -  FY  1982  (Extract) 
DMA  Product  Specifications  for  DMA  14 
Standard  for  Digital  Terrain  Elevation 
Data  -  1st  Edition,  10/77  (Extract) 
DMA  Product  Specifications  for  Digital  17 
Landmass  System  (DLMS)  Data  Base  - 
1st  Edition,  7/77  (Extract)
MC&G  TERMS  FOR  DIGITAL  DATA 
Introduction 
1.  This  list  provides  definitions  of  selected  terms  currently  used  by  the 
Defense  Mapping  Agency  (DMA)  in  correspondence,  specifications,  and  other 
•forms  of  communication  referring  to  digital  mapping.  The  list  includes 
not  only  terms  specifically  pertaining  to  digital  data,  but  also  related 
MC&G  terms  such  as  circular  error,  circular  error  probable,  conversion, 
horizontal  accuracy,  and  linear  error. 
2.  The  list  has  been  prepared  specifically  to  remedy  apparent  gaps  in 
communication  or  misunderstandings  that  have  arisen  in  connection  with 
digital  data  terminology.  The  increase  in  recent  years  of  requirements 
for  MC&G  information  in  digital  form  has  resulted  in  a  proliferation  of 
new  terms.  Many  of  these  terms  have  synonymous  or  overlapping  meanings. 
Because  digital  mapping  technology  continues  to  evolve,  new  terms  fre- 
quently supplant  those  formerly  used  (e.g.,  Digital  Landmass  System  (DLMS) 
Data  Base  has  replaced  Digital  Radar  Landmass  Simulator  (DRLMS)  Data  Base). 
It  is  anticipated  that  this  evolution  will  continue  and  that  additional 
terms  will  be  needed  to  describe  new  procedures,  types  of  data,  and  data 
bases.  However,  it  is  the  intent  of  DMA  to  standardize  terminology  as 
much  as  possible. 
3.  Alphabetization  of  terms  in  this  list  follows  the  standard  A  through 
Z  order  except  that  multiword  terms  are  alphabetized  according  to  the 
initial  word. 
4.  Multiple  definitions  for  a  single  term  are  included,  as  necessary,  to 
describe  both  the  classical  meaning  of  the  term  and  the  specific  use  of 
the  term  in  referring  to  digital  mapping.  The  designation  (ISO)  indicates 
terms  and  definitions  used  in  information  processing  activities  that  have 
been  approved  by  the  International  Organization  for  Standardization. 
5.  When  two  or  more  terms  have  identical  meaning,  the  definition  has  been 
applied  only  to  the  preferred  term,  followed  by  the  expression  "Also 
called"  and  a  list  of  the  synonyms.  At  the  end  of  some  definitions  the 
user's  attention  is  directed  to  related  terms  by  the  expression  "See 
also."  Reference  is  also  made  to  published  DMA  product  specifications  for 
the  preparation  of  digital  data  and  digital  data  bases.  •
MC&G  Terms 
areal  feature  -  1.  A  topographic  feature,  such  as  sand,  swamp,  vegetation, etc, 
which  extends  over  an  area.  It  is  represented  on  the  published  map  or 
chart  by  a  solid  or  screened  color,  by  a  prepared  pattern  of  symbols, 
or  by  a  delimiting  line.  2.  (digital  mapping)  Any  area  enclosed  by  a 
delimiting  line  that  has  any  unique  characteristic  (e.g.,  forest 
residential  area,  industrial  area).  ' 
array  -  An  arrangement  of  elements  in  one  or  more  dimensions. 
border  matching  -  The  process  by  which  individual  digital  data  sets  art 
joined  together  through  merging/smoothing  utilizing  computer  applica- 
tions software. 
boundary  discontinuities  -  Different  elevation  values  for  common  DMA  standard 
digital  terrain  elevation  data  (DTED)  matrix  points  in  adjacent  data 
files. 
boundary  point  averaging  -  Averaging  the  elevations  of  common  points  from  two 
different  data  sets  and  reassigning  each  the  average  value;  or  resolving 
a  discrepancy  between  two  elevations  for  a  common  point  by  assigning 
tne  average  elevation  value  to  that  point. 
boundary  point  weighted  averaging  -  Resolving  a  discrepancy  between  a  series 
of  overlapping  elevations  from  two  data  sets  by  biasing  one  data  set 
utilizing  either  the  accuracy  of  a  data  set  or  the  relative  distance  to 
the  edge  of  the  data  set. 
circular  error  -  1.  An  accuracy  figure  representing  the  stated  percentage  of 
probability  that  any  point  expressed  as  a  function  of  two  linear  com-* 
ponents  (e.g.,  horizontal  position)  will  be  within  plus  or  minus  the 
given  figure.  Commonly  used  are  CEP  (50%),  CE  lo  (39.35%),  and  CE  (90'-'). 
2.  A  two-dimensional  error  (X,  Y,  Easting/Northing,  or  x/$)  used  to 
express  the  horizontal  positional  accuracy  of  planimetric  features  in  a 
digital  data  base  or  on  a  chart/map.  The  probability  of  error  is  in  a 
circular  distribution  and  is  a  function  of  the  radius  of  a  circle 
centered  on  the  mean  of  the  error  distribution.  Circular  error,  there- 
fore, is  expressed  as  a  quantity  at  some  percentage  probability  level, 
e.g.,  110  meters  0  CE  90%  indicates  a  probability  that  90%  of  the  errors 
fall  within  a  110  meter  circle.  90%  is  the  probability  level  commonly 
used  in  mapping  and  digital  cartography. 
circular  error  probable  (CEP)  -  The  50%  circular  error  interval  based  on  the 
bivariate  normal  distribution  function. 
compacted  data  -  Digital  data  that  have  been  reduced  in  volume.  (1)  by  use 
of  high  density  storage  media,  (2)  by  use  of  better  format  or  codes  to 
provide  storage  of  numbers,  and  (3)  by  direct  mathematical  operations  to 
reduce  redundancy.
conversion  -  1.  The  changing  of  one  system  of  measurement  to  another,  e.g 
converting  meters  to  feet.  Conversion  is  usually  accomplished  by  the 
use  of  conversion  factors,  scales,  and  tables.  (2).  (digital  mapping) 
The  process  of  changing  the  form  in  which  digital  data  are  expressed. 
This  may  include  transformation  to  a  new  coordinate  system,  increasing 
or  decreasing  density  of  elevation  posts  or  altering  the  area!  distri- 
bution of  elevation  points.  Specific  example  is  converting  elevation 
array  from  UTM  spacings  to  geographic  spacing.  See  also  transformation 
program. 
data  bank  -  1.  (ISO)  A  set  of  libraries  of  data.  2.  A  comprehensive  collec- 
tion of  libraries  of  data.  For  example,  one  line  of  a  management  informa- 
tion report  may  form  an  item,  a  complete  report  may  form  a  record,  a  com- 
plete set  of  such  records  may  form  a  file,  the  collection  of  different 
reports  may  form  a  library,  and  the  libraries  used  by  an  organization 
are  known  as  its  data  bank.  3.  The  sum  total  of  all  related  data  bases 
together  with  a  centralized  information  storage  and  retrieval  system 
which  can  be  inventoried  and  accessed.  See  also  data  bank  hierarchy, 
data  base. 
data  bank  hierarchy  -  A  formalized  structure  which  provides  for  the  organiza- 
tion of  data  at  various  quantitative  levels;  e.g., 
data  bank 
data  base 
file 
record 
field  (element) 
character 
bit 
data   base  -  1.    (ISO)     A  set  of  data,  part  or  the  whole  of  another  set  of 
data,  and  consisting  of  at  least  one  file  that  is  sufficient  for  a 
given  purpose  or  for  a  given  data  processing  system.     2.     A  collection 
of  data  fundamental   to  a  system.     3.    (digital  mapping)     An  organized  set 
of  evaluated  MC&G  data  stored  in  either  graphic,  textual,  or  digital 
form.     A  data  base  may  contain  one  file  of  data  (e.g.,  terrain  elevation 
data)  or  several   data  files   (e.g.,  cartographic,  geodetic).     There  are 
three  kinds  of  data   bases:    (1)     those  that  contain  information  about 
information;   (2)  those  that  contain  information  about  data;  and  (3) 
those  that  contain  the  actual   data. 
data   base  system  -  A  collection  of  men,  machines,  and  methods  organized  to 
accomplish  all  of  the  functions  of  a  data  base. 
data   smoothing  -  A  process  which  reduces  the  frequency  .content  of  digital 
data.     The  information  eliminated  may  be  real  or  artificially  introduced 
from  collection  processes.     The  intent  is  to  eliminate  and  replace  incon- 
sistent digital   data  to  provide  a  more  understandable  portrayal   cf  the 
earth's  surface.
data  spacing  -  The  distance  between  centers  of  digital  data  elements  in  any 
digital  data  matrix  or  evenly  spaced  array  along  a  given  direction.     Since 
the  spacing  between  elements  in  one  direction  can  be  different  from  that 
between  elements  in  the  other,  a  complete  matrix  definition  usually 
requires  an  expression  of  both  data  spacings.     Also  known  as;  sample 
spacing,  grid  spacing,  grid  interval,  sampling  interval,  matrix  interval. 
DIGISMAC  -  digital  scene  matching  area  correlation  -  guidance  technique  of 
matching  a  digital  reference  scene  to  that  obtained  by  sensors. 
digital  cultural  data  -  1.     Man-made,  natural  and  landscape  features  in  a 
digital    form.     2.     Data  in  discrete  digital   (numerical)  form  including 
all  man-made  features  on  the  earth's  surface;  e.g.,  lines  of  communica- 
tion, built-up  areas  (cities),  airfields,  power  transmission  lines,  land- 
mark structures. 
special  char- 
digital   data  -   (ISO)     Data  represented  by  digits,  perhaps  with 
acters  and  the  space  character. 
digital   data  base  (off-line)  -  A  digital   data  base  maintained  in  a  common 
format  that  supports  different  user  systems  (e.g.,  simulator  or  weapon 
systems).     Normally  the  data  must  be  transformed  before  it  can  be  used 
by  a  specific  user  system.     This  term  is  commonly  expressed  as  the  off- 
line data  base. 
digital   data  base  (on-line)  -  A  digital  data  base  in  the  format  needed  by  a 
user  system  (e.g.,  simulator  or  weapon  system)  and  which  can  be  directly 
loaded  into  the  user  system.     This  term  is  commonly  referred  to  as  the 
on-line  data  base. 
digital   feature  analysis  data  .(DFAD)  -  Data  in  discrete  digital   form  concern- 
ing radar  significant  features. 
Digital   Landmass  System  (DLMS)  Data  Base  -  An  off-line  data  base  consisting 
of  two  basic  types  of  digital   data  files  (one  containing  terrain  eleva- 
tion data  and  one  containing  cultural  and  natural   feature  data)  main- 
tained by  DMA  to  support  various  user  systems   (e.g.,  simulators  and 
weapon  systems).     See  DMA  Product  Specifications  for  Digital   Landmass 
System  (DLMS)  Data  Base,   First  Edition,  July  1977. 
digital  map  -  1.     A  map  expressed  and  stored  in  digital   form.     2.     A  repre- 
sentation in  digital    (numerical)  form  of  discrete  points  on  the  earth's 
surface.     Also  called  a  numerical  map. 
Digital   Radar  Landmass  Simulator  (DRLMS)  Data  Base  -  An  archaic  term.     The 
proper  term  is  Digital   Landmass  System  (DLMS)  Data  Base. 
digital  synthesized  data  -  Data  derived  by  the  analysis  of  two  or  more  differ- 
ent types  of  data  such  as  digital  terrain  elevation  data,  digital  natural 
feature  data,  and  digital   cultural   data.     An  example  is  the  derivation
of  data  which  assesses  the  effects  of  soil  types,  vegetation,  slope, 
drainage,  and  microrelief  on  cross-country  movement  of  military  vehicles. 
digital  synthetic  data  -  Data  in  numerical  format  that  describes  either  tot- 
ally or  partially  fictitious  information  generated  from  lower  resolution/ 
frequency  input.     Often  referred  to  as  synthetic  data. 
digital  terrain  analysis  data  (DTAD)  -  Data  in  discrete  digital   (numerical) 
form  including  vegetation,  surface  configuration,  soils,  inland  hydro- 
graphy, lines  of  communication,   .ross-country  movement,  probability  of 
detection  from  the  air,  probability  of  detection  from  the  ground  (fields 
of  fire),  etc.     See  also  digital  synthesized  data. 
digital  terrain  data  -  A  short  form  used  to  refer  to  digital  terrain  elevation 
data   (DTED). 
digital   terrain  elevation  data   (DTED)  -  Elevation  posts  in  a  digital   form. 
See  Defense  Mapping  Agency  Product  Specifications  for  DMA  Standard  for 
Digital   Terrain  Elevation  Data,  First  Edition,  October  1977. 
digital   terrain  elevation  matrix  -  Elevation  posts,  non-specific  with  respect 
to  editing  and  smoothing,  and  evenly  distributed  in  a  rectangular 
pattern. 
digital   terrain  model   -  A  statistical  representation  of  the  continuous  surface 
of  the  ground  by  a  large  number  of  selected  points  with  known  X,  Y,  Z 
coordinates  in  an  arbitrary  coordinate  field. 
elevation  post  -  A  point  with  a  known  horizontal  and  vertical  position  with 
respect  to  some  defined  reference  system. 
feature  analysis  -  The  process  of  locating,  examining,  and  classifying  the 
physical   characteristics  of  cultural   features  on  the  earth's  surface. 
feature  analysis  code  (FAC)  number  -  A  unique  number  (usually  sequential) 
assigned  to  each  area  or  feature  portrayed  on  the  feature  manuscript 
and  used  to  relate  feature  analysis  data  table  (FADT)  information  to 
the  digital   information  which  portrays  the  shape  of  the  feature. 
feature  analysis  data  table  (FADT)  -  A  table  containing  the  feature  analysis 
code  numbers  and  the  numeric  codes  which  represent  the  physical  charac- 
teristics of  features  selected  for  portrayal   in  the  Digital   Land  Mass 
System  (DLMS)  Data  Base. 
feature  identification  data   (FID)  -  Information  pertaining  to  the  classifica- 
tion of  a  feature  as  to  kind,  function  and  description  (e.g.,  heavy 
fabrication  industry  with  saw-tooth  roof;  truss  bridge;  powerline  pylon, 
type  H).     Each  classification  has  a  unique  three-digit  feature  identifi- 
cation code.
feature  type  -  A  classification  of  features  into  categories  of  point,  linear 
(line),  or  areal  features. 
horizontal  accuracy  -  A  statement  of  the  relative  and/or  absolute  positional 
accuracy  of  a  point  computed  in  the  plane  formed  by  either  the  4  and  X 
geographic  components  or  the  x  and  y  grid  components.  Usually  expressed 
in  circular  error  (n%). 
hydrographic  digital  data  -  Data  in  discrete  numerical  form  derived  from  the 
measurements  and  description  of  the  physical  features  of  the  oceans,  seas, 
lakes,  rivers,  and  other  waters,  and  their  adjoining  coastal  areas  (with 
particular  reference  to  navigational  usage). 
linear  error  -  1.  A  one-dimensional  error  (such  as  an  error  in  elevation) 
defined  by  the  normal  distribution  function.  2.  Linear  error  is  the 
difference  between  the  true  or  known  value  and  the  measured  or  derived 
value,  and  is  normally  expressed  in  terms  of  a  percentage  probability 
level.  For  example,  LT  90%  is  the  term  used  to  express  the  linear  error 
at  90%  probability,  which  is  the  Map  Accuracy  Standard. 
linear  feature  -  A  feature  that  is  portrayed  by  a  line  that  does  not  represent 
an  area.  Also  called  line  feature. 
merge  -  1.  (ISO)  To  combine  the  items  of  two  or  more  sets  that  are  each  in  the 
same  given  order  into  one  set  in  that  order.  2.  To  combine  two  or  more 
digital  data  files  into  one  unit  so  that  the  individual  data  items  are 
not  distinguishable  by  the  separating  property. 
pixel  -  Abbreviation  for  "picture  element,"  the  smallest  element  of  single 
uniform  transmission  density  of  a  photographic  image. 
planar  -  Digital  data  aligned  to  the  UTM  grid  coordinate  system.  The  data  is 
digitized  and  stored  by  non-rectangular  map  sheet  lines.  This  format 
is  being  replaced  by  the  DMA  standard  format  for  digital  terrain  eleva- 
tion data  (DTED).  See  digital  terrain  elevation  data  (DTED). 
point  feature  -  An  object  whose  location  can  be  described  by  a  single  set  of 
coordinates. 
point  to  point  accuracy  -  See  relative  accuracy. 
post  points  -  Common  elevation  posts  between  two  different  digital  terrain 
files. 
product  data  base  -  A  data  base  organized  tc  meet  the  specifications  of  a 
specific  product. 
relative  accuracy  -  A  numeric  value  representing  the  random  errors  in  the 
distance  between  two  points  in  a  data  base  relative  to  each  other.  Any 
systematic  errors  present  ars  not  considered  in  the  evaluation.  Also 
called  point  to  point  accuracy.
TERCOM  -  An  acronym  for  "Terrain  Contour  Matching." 
terrain  modeling  -  The  mathematical  modeling  of  the  physical  shape  of  a  por- 
tion of  the  earth's  surface  (terrain)  by  fitting  functions  to  the  ele- 
vation data. 
transformation  program  -  1.  A  computer  program  used  to  change  digital  data 
from  one  format  to  another  (e.g.,  from  planar  to  DMA  standard).  2. 
Computer  software  which  produces  an  on-line  data  base  from  an  off-line 
data  base. 
verify  -  1.  To  determine  whether  a  transcription  of  data  or  other  operation 
has  been  accomplished  accurately.  2.  To  confirm  the  accuracy,  portrayal, 
and  completeness  of  digital  data  with  respect  to  established  standards 
or  specifications. 
vertical  accuracy  -  A  statement  of  the  relative  and/or  absolute  positional 
accuracy  of  a  point  computed  along  the  line  through  that  point  normal  to 
the  geoid:  i.e.,  the  height  or  elevation  components.  Usually  expressed 
in  linear  error  (n%). 
World  Geodetic  System  (WGS)  -  A  consistent  set  of  parameters  describing  the 
size  and  shape  of  the  Earth,  the  positions  of  a  network  of  points  with 
respect  to  the  center  of  mass  of  the  Earth,  transformations  from  major 
geodetic  datums,  and  the  potential  of  the  Earth  (usually  in  terms  of 
harmonic  coefficients).
OEFENSE  MAPPING  AGENCY 
BUILDING    36.    US     NAVAL    OBSERVATORY 
WASHINGTON     D  C     2O30S 
OCT  1  4  1981 
PR 
SUBJECT:  DMA  List  of  Approved  Products  and  Services  -  FY  1932 
TO:      See  Distribution  List 
1.  Enclosed  is  a  List  of  Approved  Products  and  Services  available  at  DMA  for 
FY  1982.  This  consolidated  list  is  a  basic  reference  for  determining  the 
various  types  of  standard  maps,  charts,  and  related  products  and  services  that 
have  been  produced  by  DMA  to  support  the  ?«'ilitary  Departments,  U£S  Commands, 
and  the  intelligence  community.  Complete  area  coverage  and  instructions  for 
ordering  these  products- and  those  of  other  producers  from  DMA  are  contained  in 
applicable  DMA  Catalogs.  DMA  may  also  distribute  additional  nonstandard  pro- 
ducts not  included  in  this  list  to  meet  new  or  special  requirements  identified 
by  a  user.  As  a  new  or  special  requirement  is  requested,  DMA  will  determine 
if  a  nonstandard  item  is  available  for  distribution. 
2.  The  items  in  this  list  are  shown  as  individual  products  or,  in  some 
cases,  categories  of  products.  As  an  example,  the  JOG-G  is  a  single  item; 
conversely,  "Weather  Plotting  Charts"  is  a  category  and  includes  109  indivi- 
dual items. 
3.  HO  DMA  point  of  contact  for  the  List  of  Approved  Products  and  Services  is 
Mr.  Oavid  !).  Fredlund,  PRR,  Autovon  294-4515/4473. 
FOP.  THE  DIRECTOR: 
Enclosure  a/s 
L.  S.  SEVERANCE,  JR. 
Rear  Admiral ,  USr! 
Deputy  Director  for 
Plans  and  Requirements 
Distribution  List: 
•JCS 
HIA  (ATTii:     30S-3C) 
CSA  (ATTN:      DAMI-ISP) 
CSAF   (ATN:      AFIS/IHT3) 
1? 
1'SilC  (IMTN!) 
C;:0  (QP-952) 
COMNAVOCEAilCOM 
S'AVOCf.AiH) 
CliiCAD 
CI-SCMAC 
r.AC.DA  (ATTN:     ATCA-CCC-E) 
? 
(Extracted)
£&» 
DM  IS  NO. 
PKODUCT 
DESCRIPTION/PURPOSE 
1BA 
1BA 
1CD 
1CF 
ICC 
1CJ 
Weather  Plotting  Charts 
Weather  Plotting  Charts  Catalog 
(WPCC) 
Weather  Plotting  Charts  (WPC) 
Digital  Aerospace  Products 
Digital  Terrain  Elevation  Data 
Level  I  (DTED  1) 
Digital  Feature  Analysis  Data  - 
Level  I  (DFAD  I) 
Digital  Terrain  Elevation  Data 
Level  II  (DTED  ll) 
Digital  Feature  Analysis  Data  - 
Level  II  (DFAD  II) 
Airborne  Warning  and  Control 
System  Data  (AWACS) 
Provides  a  detailed  listing  and  graphics  of  available  items  used 
to  plot  and  forecast  worldwide  weather  conditions  including 
requisitioning  procedures. 
These  products  are  a  variety  of  weather  charts,  scales,  and 
diagrams  used  by  DoD. 
Provides  wide  area,  medium  scale  coverage  of  terrain  elevation  data 
in  DMA  standard  digital  format. 
Provides  wide  area,  medium  scale  coverage  of  planlmetrlc  features 
in  DMA  standard  digital  format. 
Provides  small  area,  large  scale  coverage  of  terrain  elevation  data 
in  DMA  standard  digital  format. 
Provides  small  area,  large  scale  coverage  of  planimetric  features 
in  DMA  standard  digital  format. 
Data  tapes  that  provide  landmass  blanking  input  to  RADAR  sensors 
aboard  AWACS  aircraft  operating  in  the  maritime  surveillance  mode. 
The  tapes  consist  of  Digital  Landmass  Blanking  (DLMB)  data  of 
shorelines  in  DMA  standard  format  for  1  cells,  Including 
shorelines  for  islands.
IFF 
1GA 
ICB 
1GB 
1GB 
^  1GB 
ICE 
ICK 
-7? 
PRODUCT 
Spi-ci.il  Weapons  Overflight 
Guide  (SWUC) 
Aeronautical  Publications  and 
Services 
Airfields  and  Seaplane  Station: 
of  the  World  (ASSOTW) 
DMA  Catalog  of  Maps,  Charts,  and 
Related  Products,  Part  I  - 
Aerospace  Products.   Volume  I  - 
Aeronautical  Charts,  Flight 
Information  Publications,  and 
Related  Products.   Volume  It  - 
Weather  Plotting  Charts.   (ACFPC) 
DMA  Special  Supplement  to 
Catalog  of  Aeronautical  Charts, 
Bulletin/Digest,  and  CHUM 
Chart  Updating  Manual  (CHUM) 
Catalog  of  Digital  Data 
Products 
Automated  Air  Facilities 
Information  File  (AAFIF) 
DMA  Vertical  Obstruction  File 
( D-VOF ) 
GvjiU* 
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DESCRIPTION/PURPOSE 
This  is  a  classified  TOP  SECRET  document  produced  as  a 
companion  product  to  the  Foreign  Clearance  Guide. 
Provides  graphic  and  textual  Information  on  operational  status  and 
physical  characteristics  of  airfields  on  a  worldwide  basis.  By-product 
of  evaluated  data  contained  in  the  AAFIF  (1GE). 
Provides  a  detailed  listing  of  available  unclassified 
aeronautical  charts,  flight  information  publications 
and  requisitioning  procedures. 
Provides  an  index  and  is  the  Bulletin/Digest  and  Chart  Up- 
dating Manual  for  CONFIDENTIAL  aeronautical  charts. 
Provides  chart  corrective  information  that  is  potentially 
hazardous  to  flight. 
Portrays  the  areas  of  coverage  of  the  various  levels  of 
digital  data  retained  by  DMA  In  the  Cartographic  Data  Base. 
Provides  operational  status  and  physical  characteristics  of  free 
world  airfields  and  related  aeronautical  support  facilities  to 
support  production  of  DoD  MC&G  products  and  to  assist  DoD 
operational  and  contingency  planners. 
Supports  aeronautical  charting  and  special  requests  by  DoD  users 
for  vertical  obstruction  data.
DMIS   NO. 
PRODUCT 
DESCRIPTION /PURPOS F 
?KH 
Azimuths  of   Celestial    Bodies   - 
Pub   261 
Provides  a  method   of  determining   gyro  and   magnetic   compass  error 
from  celestial   bodies  with  declinations   from  24  degrees   to 
70  degrees. 
2EH 
Technical  Publications  (TRPUB) 
Provides  manual  of  technical  information  on  collection 
of  corrected  cartographic  data,  application  of  data  to 
chart  construction,  and  similar  publications  for 
limited  distribution. 
2EH 
2EH 
American  Practical  Navigator 
Pub  9,  Volumes  I  and  II 
Maneuvering  Board  Manual  - 
Pub  217 
Volume  I  -  A  compendium  of  navigational  material  that 
provides  comprehensive  methods  and  practices  of  marine 
navigation  for  training  and  reference  purposes. 
Volume  II  -  Tables  with  related  text  required  for 
solution  of  navigation  problems. 
A  quick  basic  reference  to  specific  problem  solutions 
for  vessels  engaged  in  naval  tactical  maneuvers. 
2F.H 
Handbook  of  Magnetic  Compass 
Adjustment  -  Pub  226 
Details  techniques  and  theory  of  proper  adjustment  of 
shipboard  magnetic  compasses. 
2EH 
Radar  Navigation  Manual  - 
Pub  1310 
Provides  referral  to  various  radar  navigation  techniques 
and  radar  information  needed  In  performance  of  ship  navigation. 
2EH 
Manual  of  Procedures  for  General 
Bathymetric  Navigation  (SP-42A) 
Digital  Hydrographic  Data  and 
Products 
Gives  basic  procedures  for  utilization  of  various 
bathymetric  products  by  the  Navy  navigator. 
2CC 
Digital  Data   for  Radar 
Navigation  Simulation 
Provides   terrain,   cultural,   and  hydrographic   dat»   in 
digital   form  to  support   training  devices.
DMIS  HO, 
PRODUCT 
DESCRIPTION /PURPOSE 
ABB 
ABC 
Short-Range  Attack  Missile 
(SRAM)  Support  (RFP) 
(service  only;  no 
specifications) 
Tactical  Target  Data 
(service  only;  no 
specifications) 
Geodetic  coordinates  and  elevation  data  of  radar  significant 
checkpoint  fixes  derived  and  provided  to  SAC.  These  Radar 
Fix  Points  (RFP)  are  used  in  the  alignment  of  the  inertial 
navigation  system  in  the  airborne  delivery  of  the  SRAM. 
Precise  data  derived  from  point  positioning  data  bases  or 
other  sources  on  a  rapid  response  basis  to  support  tactical 
operations  using  tactical  aircraft  equipped  with  advanced 
airborne  radar  or  LORAN  navigation  systems. 
ACB 
4CB 
ACB 
ADA 
ADC 
SAC  Mission  Planning  Support 
JCS-ONC  Low-Level  Planning 
Charts  (JCS/0)  1:1,000,000 
JCS-JNC  (JCS/J)  1:2,000,000 
SAC  Special  Domestic  JNC 
1:2,000,000  (printing 
service  only) 
Aerospace/Land  Combat  Point 
Positioning  Data  Bases 
Deployable  Point  Positioning 
Data  Base  (PPDB) 
DoD  Catalog  of  Point 
Positioning  Data  Bases 
ONC  base  charts  with  special  SAC  SI0P  Low-Level  Intelligence, 
Mini-Bloc  and  Planning  Overprints. 
JNC  Base  charts  with  a  special  SAC  intelligence  overprint. 
These  charts  are  produced  with  a  special  SAC  RFP  overprint 
used  for  domestic  training  by  SAC  manned  bomber  forces. 
Sets  of  geodetically  controlled  photographs  and  accompanying 
data  that  enable  trained  personnel  using  appropriate  hardware 
and  software  to  derive  accurate  coordinates  for  any  feature. 
Primarily  used  for  tactical  point  positioning  in  the  field. 
Provides  a  detailed  listing  regarding  area  of  coverage  and  the 
accuracy  of  deployable  point  positioning  data  bases  prepared 
by  DMA.
D>fIR    NO. 
PRODUCT 
DESCRIPTION /PURPOSE 
4EA 
4F 
Special  Support 
IROL  Positional  Data 
(service  only;  no 
specifications) 
Geodetic  and  Geophysical 
Support  to  Weapon  Systems 
Geodetic  Surveys,  Studies  and 
Other  Services 
Digital  Data  Support  for 
Missile  Guidance 
Coordinates  related  to  the  World  Geodetic  System  (WGS)  of  high 
resolution  objectives  contained  in  the  Imagery  Reconnaissance 
Objective  List  (IROL).  This  positional  data  supports  the 
Imagery  Reconnaissance  Objective  Program  (IROP). 
Performs  geodetic  surveys  and  studies  to  support  DoD  and  DoD 
contractor  activities. 
4CD 
4CE 
4GF 
4GG 
Vertical  Obstruction  Data   (VOD) 
TERCOM  Maps 
Vertical  obstruction  data  required  to  support  the  cruise 
missile  mission  planning  system  (ALCM,  GLCM,  SLCM) . 
Rectangular  arrays  of  digital  terrain  elevation  data  at  pre- 
determined intervals,  sizes,  and  orientations  validated  to 
support  navigation  through  Terrain  Contour  Matching  (TERCOM).
PS/1C/100 
PS/3E/600 
DEFENSE  MAPPING  AGENCY 
PRODUCT  SPECIFICATIONS 
FOR 
DMA  STANDARD  FOR 
DIGITAL  TERRAIN 
ELEVATION  DATA 
FIRST  EDITION 
OCTOBER  1977 
(Extracted) 
STOCK  Ml    SI'IK  ADTKl)
PS/1C/100 
PS/3E/600 
SEC  100 
OCT  1977 
SECTION  100  -  INTRODUCTION 
101.  General 
A.  Data  Derivation.  These  specifications  deal  primarily  with  the 
derivation  of  terrain  elevation  data  from  various  cartographic  and  photo- 
graphic sources.  Terrain  data  is  derived  utilizing  various  techniques  and, 
other  than  to  define  the  contents  of  the  terrain  file,  is  not  addressed  in 
this  section. 
B.  Terrain  Data  Interval.  Elevation  information  in  DMA  standard 
digital  format  can  be  in  any  interval,  however,  it  must  conform  to  the 
constraints  in  Section  200,  paragraph  202. B. 4. C. 
102.  Da turns 
A.  Vertical:  Terrain.  The  vertical  datum  for  terrain  elevation  data 
is  Mean  Sea  Level. 
B.  Horizontal:  Terrain.  The  horizontal  datum  for  terrain  elevation 
data  is  the  World  Geodetic  System  (WGS). 
103.  Accuracy  Requirements  -  Terrain  Files 
The  horizontal  and  vertical  accuracy  requirements  for  the  terrain  files 
are  as  follows  (note:  LE  =  Linear  Error;  CE  =  Circular  Error): 
Vertical 
Horizontal 
Absolute 
LE  90%  MSL 
+     meters  (+  feet) 
CE  90%  WGS 
   meters  (   feet) 
Relative 
LE  90%  (Point  to  Point) 
+   meters  (+   feet)
RECORD 
RECORD 
SEQUENCE 
TYPE 
VOL  1 
HDR  1 
UHL  1   30°N,40°W 
* 
Data  1 
Data  2 
Data  3 
Data  4 
Data  5 
Data  6 
* 
EOF  1 
UTL  1 
* 
HDR  1 
UHL  1   30°N,39°W 
* 
Data  6 
Data  7 
Data  8 
Data  9 
Data  10 
Data  11 
* 
EOF  1 
UTL  1 
* 
HDR  1 
UHL  1   31°N,40°W 
* 
Data  12 
Data  13 
Data  14 
Data  15 
Data  16 
Data  17 
* 
EOF  1 
UTL  1 
* 
HDR  1 
UHL  1   31°N,39°W 
* 
Data  17 
Data  18 
Data  19 
Data  20 
Data  21 
Data  22 
* 
EOF  1 
UTL  1 
* 
* 
PS/1C/100 
PS/3E/600 
DMA  STANDARD  TERRAIN  EXAMPLE 
FOUR  1°  SQUARES 
12'  LONGITUDE  SPACING 
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PS/ICD/100 
PS/ICE/IOO 
PS/ICF/IOO 
PS/ICG/IOO 
DEFENSE  MAPPING  AGENCY 
PRODUCT  SPECIFICATIONS 
for 
DIGITAL  LANDMASS  SYSTEM  (DLMS) 
DATA  BASE 
FIRST  EDITION 
JULY  1977 
(Extracted) 
STOCK  NO.  SPECXDLMS
PS/ICD/100  CHAP  1,  SEC  100 
PS/ICE/100  JULY  1977 
PS/ICP/100 
PS/IOG/100 
CHAPTER  1  —  INTRODUCTION 
SECTION  100  —  GENERAL 
Paragraph  *  Page 
101  Data  Derivation  1 
102  Data  Density  Levels  1 
101.  Data  Derivation 
These  specifications  deal  primarily  with  the  derivation  of  cultural 
data  from  various  planimetric,  photographic,  and  intelligence  sources. 
This  data  is  utilized  to  produce  a  culture  manuscript  which,  along  with 
appropriate  descriptive  information,  is  converted  to  digital  form  for 
inclusion  in  the  final  culture  file.  Terrain  data  is  derived  utilizing 
various  techniques,  and,  other  than  to  define  the  contents  of  the  terrain 
file,  is  not  addressed  in  this  section. 
102.  Data  Density  Levels 
A.  The  content  of  both  files  of  the  Digital  Landmass  System  (DLMS) 
Data  Base  is  collected  at  two  different  levels  which  are  defined  and 
identified  as  follows: 
1.  Level  1 
a.  Terrain:  Relief  information  to  DMA  standard  digital 
format  on  a  three  seconds  of  latitude  arc  (approximately  100  meters 
(300  feet))  matrix.   (Refer  to  Table  1-100-1.) 
b.  Culture:  A  generalized  description  and  portrayal,  in 
DMA  standard  digital  format,  of  planimetric  features.  The  Level  1  data 
base  is  intended  to  cover  large  expanses  of  the  earth's  surface  and  has 
relatively  large  minimum  size  requirements  for  portrayal  of  planimetric 
features. 
2.  Level  2 
a.  Terrain:  Relief  information  in  DMA  standard  digital 
format  on  a  one  second  of  latitude  arc  (approximately  30  meters 
(100  feet))  matrix.   (Refer  to  Table  1-100-1.)
CRAP  1,  SEC  100  PS/ICD/100 
JULY  1977  PS/ICE/100 
PS/ICP/100 
PS/ICG/100 
b.  Culture:  A  highly  detailed  description  and  portrayal, 
in  DMA  standard  digital  format,  of  planimetric  features.  The  Level  2  data 
base  is  intended  to  cover  small  areas  of  interest  and  has  small  minimum 
size  requirements  for  portrayal  of  planimetric  features. 
B.  Terrain  Data  Interval 
Elevation  information  will  be  in  DMA  standard  digital  format 
(refer  to  Chapter  Four,  Section  100)  at  various  intervals  depending  on  the 
zone/latitude  as  indicated  in  the  following  table: 
Level  2 
lat.  long. 
lxl  second 
1x2  seconds 
1x3  seconds 
1x4  seconds 
lx€  seconds 
NOTE:  All  values  in  seconds  are  in  terms  of  arc  measure. 
Table  1-100-1  -  Terrain  Data  Interval 
Zone 
Latitude 
Level  1 
lat.  long. 
I 
0°-50°  N-S 
3x3  seconds 
II 
50°-70°  N-S 
3x6  seconds 
III 
70°-75°  N-S 
3x9  seconds 
IV 
75°-80°  N-S 
3  x  12  seconds 
V 
80°-90°  N-S 
3  x  18  seconds
PS/ICD/100  CHAP  1,  SEC  300, 
PS/ICE/100  AMDT.  NO.  1 
PS/ICF/100  JANUARY  1980 
PS/IOG/100 
CHAPTER  1  —   INTRODUCTION 
SECTION  300  —  ACCURACY  REQUIREMENTS 
Paragraph  Page 
301  General  5 
302  Terrain  File  5 
303  Culture  File  5 
304  Heighting  Accuracy  5 
301.  General 
The  stated  accuracies  in  this  section  specify  an  objective  for  the 
DLMS  Data  Base  and  are  based  on  known  product  requirements.  The  terrain 
and  culture  files  will  be  compatible.  Compatibility  is  the  horizontal 
positional  relationship  which  insures  that  features  on  the  culture  files 
will  coincide  with  the  proper  terrain  elevation  locations,  e.g.,  rivers  in 
river  valleys,  bridges  crossing  valleys,  obstructions  correctly  located. 
NOTE:  L.E.  =  Linear  Error 
C.E.  =  Circular  Error 
302.  Terrain  Files 
The  absolute  accuracy  objectives  for  the  terrain  data  are: 
Horizontal  Vertical 
Level  1  130  meters  (425  ft)  +30  meters  (+100  ft) 
C.E.  90%  WGS  L.E.  90%  MSL 
Level  2* 
*  Coordinates  and  elevation  values  of  Level  2  terrain  data  are  equivalent 
to  Level  1  terrain  data  at  the  common  posts. 
303.  Culture  File 
A.  The  absolute  horizontal  accuracy  objective  for  Level  1  culture 
data  is  130  meters  (425  feet),  C.E.  90%  WGS.  Level  2  culture  data  will  be 
compatible  with  Level  1  feature  detail  and  has  a  26  meter  (85  foot) 
relative  accuracy  (point-to-point)  at  90%  C.E. 
B.  Vertical  accuracy  for  cultural  data  is  not  applicable.  For 
obstructions  over  46  meters  (150  feet)  see  paragraph  304. 
304.  Heighting  Accuracy 
The  heighting  accuracy  requirement  for  vertical  obstructions  which 
are  46  meters  (150  feet)  or  greater  is  +10  meters  (+30  feet)  (90% 
assurance  above  ground  level) .
PS/ICD/100  CHAP  2,   SEC  100 
PS/ICE/100  JULy  1977 
PS/ICF/100 
PS/ICG/100 
CHAPTER  —  ANALYSIS 
SECTION  100  —  SURFACE  MATERIAL  CATEGORY  (SMC) 
Paragraph  Page 
101  General  7 
102  Surface  Material  Category  1  (Metal)  8 
103  Surface  Material  Category  2  (Part  Metal)  8 
104  Surface  Material  Categroy  3  (Stone/Brick)  9 
105  Surface  Material  Category  4  (Composition)  9 
106  Surface  Material  Category  5  (Earthen  Works)  10 
107  Surface  Material  Category  6  (Water)  10 
108  Surface  Material  Category  7  (Desert/Sand)  10 
109  Surface  Material  Category  8  (Rock)  11 
110  Surface  Material  Category  9  (Asphalt/Concrete)  11 
111  Surface  Material  Category  10  (Soil)  11 
112  Surface  Material  Category  11  (Marsh)  12 
113  Surface  Material  Category  12  (Trees)  12 
114  Surface  Material  Category  13  (Snow/Ice)  13 
101.   General 
A.  Feature  analysis  is  designed  to  determine  what  the  physical 
characteristics  of  a  feature  are  and  which  features  will  be  selected  for 
portrayal  (areal,  line,  or  point)  on  the  feature  manuscript.  The  selection 
of  features  to  be  portrayed  is  based  upon  those  factors  which  are  outlined 
in  the  following  specifications.  These  factors  include  such  considera- 
tions as  size,  predominant  height  and  surface  material  makeup.  This 
information  is  determined  by  analyzing  aerial  and  ground  photography,  map 
source,  textual  materials  and  intelligence  reports. 
B.  All  surface  groups  shall  be  divided  into  generally  homogeneous 
surface  material  groupings,  depending  on  the  predominant  exposed  surface 
material,  in  accordance  with  the  categories  listed  in  this  section.  If  a 
homogeneous  surface  material  grouping  is  too  small  to  be  considered 
separately,  it  will  be  included  in  the  surrounding  grouping  or  in  the  most 
closely  related  adjoining  grouping. 
C.  Each  homogeneous  surface  material  grouping  that  meets  the 
minimum  requirements  shall  be  delineated  on  the  feature  manuscript  and 
identified  by  a  surface  material  code  in  the  data  table.  Refer  to  Chapter 
Three,  Section  200,  for  additional  descriptive  information  requirements.
CHAP  2,  SEC  100  PS/ICD/100 
JULY  1977  PS/ICE/100 
PS/ICF/100 
PS/ICG/100 
D.  The  surface  material  criteria  also  applies  to  all  areal,  line 
and  point  features  in  accordance  with  the  specification  requirements 
(Chapter  Two,  Section  400) . 
E.  For  examples  of  analysis  treatment  refer  to  Appendix  IV, 
Symbols. 
NOTE:  The  format  of  the  DMLS  culture  file  requires  that  the  dimensions  of 
planimetric  features  be  recorded  in  2  meter  increments.  In  some  cases 
these  specifications  state  size  requirements  in  odd  meters  (e.g.,  3  meters 
(10  feet)).  It  should  be  noted  that  these  requirements  are  the  minimum 
criteria  for  selection  only,  and  are  stated  in  odd  increments  to  more 
closely  approximate  the  corresponding  foot  values.  Unless  standardized  by 
these  specifications,  the  recorded  dimensions  for  all  planimetric  features 
shall  be  rounded  off  to  the  nearest  2  meter  or  5  foot  increment.  Two 
meters  or  five  feet  is  the  minimum  unit  of  measure  to  be  recorded  for  any 
feature.  If  any  actual  dimension  of  a  feature  selected  for  portrayal  is 
less  than  this  minimum,  the  dimension  shall  be  recorded  on  the  Feature 
Analysis  Data  Table  as  2  meters  or  5  feet. 
102.   Surface  Material  Category  1  (Metal) 
Criteria  —  75%  or  more  of  the  surface  material  is  metal,  for 
example,  tin,  steel,  corrugated  iron,  aluminum,  etc.  Surface  material 
includes  the  roof  area  but  excludes  ground  and  ground  level  pavements. 
NOTE:  This  category  includes  features  of  all  types  that  are  predominantly 
constructed  of  metal.  It  may  include,  but  is  not  limited  to,  such  features 
'as  aluminum  mobile  homes,  steel  storage  tanks,  steel  bridge  super /sub- 
structures, steel  power  transmission  towers,  etc. 
103.   Surface  Material  Category  2  (Part  Metal) 
Criteria  —  40%  to  74%  of  the  surface  material  is  metal,  the 
remaining  surface  material  being  some  other  material,  such  as  wood,  stone, 
brick,  concrete,  etc.  Surface  material  includes  roof  area  but  excludes 
ground  and  ground  level  pavements. 
NOTE:   This  category  includes  (but  is  not  limited  to)  such  features  as 
railroad  yards  and  metal  ore  slag  dumps. 
£.6
ro 
CO 
Surface  Material  Category 
Size  Requirements 
SMC  Change 
Requirements* 
Height  Differential 
Requirements 
Rules 
SMC 
Min. 
Length 
Min. 
Width 
Min 
Height 
Min. 
Roof 
Cover 
Min. 
Length 
Min. 
Width 
Min. 
Height 
Diff. 
Min. 
Length 
Min. 
Width 
Note 
30(100) 
30(100) 
3(10) 
6% 
15(50) 
ANY 
NOT  REQUIRED 
1,5,6.8 
30(100) 
30(100) 
3(10) 
6% 
15(50) 
ANY 
NOT  REQUIRED 
2,5,6,8 
30(100) 
30(100) 
5(15) 
6% 
60(200) 
60(200) 
10(30) 
30(100) 
ANY 
5,8 
60(200) 
60(200) 
5(15) 
6% 
60(200) 
60(200) 
10(30) 
60(200) 
ANY 
5,8 
30(100) 
30(100) 
5(15) 
— 
__ 
—. 
-._ 
__ 
— _ 
... 
30(100) 
30(100) 
— 
— 
~ 
-~ 
— 
« 
— 
4,5,7 
600(2000) 
150(500) 
— 
— 
— 
— 
— 
— 
-- 
9,12 
150(500) 
150(500) 
— 
— 
— 
— 
— 
— 
« 
— 
100(300) 
100(300) 
— 
— 
— 
— 
— 
— 
-• 
£5,10 
— 
« 
— - 
— 
~ 
-- 
__ 
— 
— 
3,5 
150(500) 
150(500) 
— 
— 
— 
— 
— 
— . 
— 
— 
60(200) 
10(30) 
8(25) 
— 
— 
~ 
— 
-.- 
— 
3,5,11 
150(500) 
150(500) 
— 
— 
— 
— 
— 
— 
— 
— 
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to  to 
M  M  M  M 
8  *a  m  8 
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TABLE  2-100/200-2    LEVEL  2  -  SURFACE/HEIGHT  SPECIFICATIONS 
(Dimensions  in  Meters  (Feet)) 
*SMC  change  within  other  surface  material  areas  (urban  areas)  1-4 
Refer  to  pages  23  and  25  for  notes. 
r*  tn 
SO  M 
»J  O 
■J  O
PS/ICD/100 
PS/ICE/100 
PS/ICF/100 
PS/ICG/100 
CHAP  2,  SEC  200 
AMDT.  NO.  1 
JANUARY  1980 
NOTES  FOR  TABLES  2-100/200-1  AND  2-100/200-2 
NOTE:  (!)  Height  differential  grouping  is  not  required  within  an  SMC  1 
area.  SMC  change  not  required  for  SMC  1  areas  within  an  SMC  2 
area. 
(2)  Height  differential  grouping  not  required  within  an  SMC  2 
area.  SMC  change  is  not  required  for  SMC  2  areas  within  an 
SMC  1  area. 
(3)  All  open  areas  within  an  urban  area  (SMC  1-4)  will  be 
described  as  SMC  9,  SMC  10  or  SMC  12  depending  upon  its  pre- 
dominant content.  Minimum  size  requirements  150m  x  150m 
(SOO'xSOO')  Level  1,  60m  x  60m  (200'x200')  Level  2.  All  of 
the  land  area  on  the  manuscript  will  be  described  as  SMC  10 
(soil)  for  the  background  material.  Open  areas  within  urban 
areas  are  defined  as  areas  having  5%  or  less  roof  coverage  and 
surrounded  by  SMC  1,  2,  3  or  4  buildings. 
(4)  To  minimize  the  fragmentation  of  rivers,  those  narrower 
sections  between  SMC  6  river  segments  (areal  portrayal)  that 
are  at  least  100  meters  (300  ft)  wide  at  Level  1,  or  at  least 
20  meters  (66  ft)  at  Level  2,  shall  be  portrayed  as  linear 
features.  Length  and  width  measurements  for  inland  water 
areas  shall  be  made  at  the  normal  water  level.  Tidal  water 
area  measurements  shall  be  made  at  mean  high  water.  (NOTE: 
See  Unique  Significant  Features  for  details  of  mud/tidal 
flats.) 
(5)  Open  areas  within  wooded  areas  will  be  described  as  SMC  10 
(soil) .  Minimum  size  requirements  of  open  areas  are  300m  x 
300m  (lOOO'xlOOO1)  Level  1  and  60m  x  60m  (200'x200')  Level  2. 
Open  areas  within  wooded  areas  are  defined  as  areas  having 
less  than  51%  trees  and  less  than  5%  buildings.  SMC  1  through 
4  and  6  areas  may  be  shown  within  a  wooded  area  if  applicable 
surf ace/ height  specifications  are  met.  The  above  minimum 
size  requirements  will  also  apply  to  SMC  10  areas  falling 
within  SMC  8,  9,  11  and/or  13  areas. 
(6)  Surface  material  or  height  differential  groupings  (areas) 
smaller  than  150m  x  150m  (5C0'x500')  Level  1  or  30m  x  30m 
UOO'xlOO')  Level  2  shall  be  portrayed  as  a  point  or  line 
feature.
Surface  Material  Category 
Size  Requirements 
SMC  Change 
Requirements* 
Height  Differential 
Requirements 
Rules 
SMC 
Min. 
Length 
Min. 
Width 
Min 
Height 
Min. 
Roof 
Cover 
Min. 
Length 
Min. 
Width 
Min. 
Height 
Diff. 
Min. 
Length 
Min. 
Width 
Note 
150(500) 
150(500) 
3(10) 
6% 
90(300) 
ANY 
NOT  REQUIRED 
1,5,6,8 
150(500) 
150(500) 
3(10) 
6% 
90(300) 
ANY 
NOT  REQUIRED 
2,5,6,8 
150(500) 
150(500) 
5(15) 
6% 
300(1000) 
300(1000) 
10(30) 
150(500) 
ANY 
5,8 
300(1000) 
300(1000) 
5(15) 
6% 
600(2000) 
600(2000) 
10(30) 
600(2000) 
ANY 
5,8 
300(1000) 
300(1000) 
5(15) 
__ 
— 
— 
~ 
— 
— 
— 
150(500) 
150(500) 
__ 
— 
— 
~ 
— 
— 
— 
4,5,7 
1800(6000) 
300(1000) 
__ 
— 
.  
~ 
— 
— 
~ 
9,12 
600(2000) 
600(2000) 
_„ 
__ 
~ 
— 
~ 
— 
— 
— 
300(1000) 
300(1000) 
__ 
__ 
__ 
— 
— 
, 
— 
3,5,10 
.**■> 
— «• 
__ 
— 
— 
— 
__ 
— 
— 
3,5 
300(1000) 
300(1000) 
— _ 
__ 
__ 
— 
— 
— 
— 
— 
300(1000) 
30(100) 
8(25) 
— 
— 
— 
— 
— 
3,5,11 
600(2000) 
600(2000) 
— 
— 
— 
— 
— 
— 
— 
en 
*TJ  *0  *tf 
WWW 
w  s 
M  H"  H* 
O  O  O 
o  o  o 
TABLE  2-100/200-1    LEVEL  1  -  SURFACE/HEIGHT  SPECIFICATIONS 
(Dimensions  in  Meters  (Feet)) 
♦SMC  change  within  other  surface  material  areas  (urban  areas)  1-4 
Refer  to  pages  23  and  25  for  notes. 
r  tn 
H 
«o  N 
-J  © 
«4  O
PS/ICD/100  CHAP  2,  -SEC  200 
PS/ICE/100  JULY  1977 
PS/ICF/100 
PS/ICG/100 
NOTES  FOR  TABLES  2-100/200-1  AND  2-100/200-2  (CONT'D) 
(7)  Features  that  are  surrounded  by  or  cross  water  areas  are  of 
particular  importance.  Refer  to  the  Unique  Feature  Specifi- 
cations for  minimum  size  requirements  of  such  features  as 
causeways,  islands  and  bridges.  Bodies  of  water  will  not  be 
grouped  together  to  meet  the  areal  specification  requirements 
for  SMC  6  areas. 
(8)  The  minimum  width  of  2  meters  or  5  feet  will  be  recorded  on 
the  FADT  even  if  the  actual  width  is  less  than  2  meters  or 
5  feet.  Two  meters  or  five  feet  is  the  minimum  unit  of 
measure  to  be  recorded  for  any  feature. 
(9)  The  minimum  size  requirements  refer  to  mud/tidal  flats. 
(10)  Refer  to  Unique  Feature  Specifications,  Chapter  2, 
Section  400,  for  airfield  runway  and  taxiways  minimum  size 
requirements. 
(11)  Recorded  tree  height  is  standardized  at  16  meters  or  50  feet 
for  trees  less  than  30  meters  (100  feet)  tall,  and  at 
30  meters  (100  feet)  for  trees  taller  than  30  meters 
(100  feet). 
(12)  This  note  pertains  to  sand  dunes.  The  minimum  size  require- 
ments are: 
Level  1:  Length  and  width  =  3000  meters  (10,000  feet) 
Level  2:   Length  and  width  =  600  meters  (  2,000  feet) 
Portrayal  of  desert  or  sand  areas  other  than  sand  dunes,  sand 
bars  or  mud/tidal  flats  is  not  required.
PS/ICD/100  CHAP  2,  SEC  400 
PS/ICE/100  AMDT.  NO.  2 
PS/ICF/100  AUGUST  1980 
PS/ICG/100 
CHAPTER  2  —   ANALYSIS 
SECTION  400   ~  UNIQUE  SIGNIFICANT  FEATURES 
Paragraph  Page 
401  General  30 
402  Selection  and  Portrayal  30 
403  Feature  Dimensions  31 
404  Areal  Features  —  General  31 
405  Railroad  Yards,  Spurs  or  Sidings  31 
406  Parking  Aprons,  Parking  Areas  32 
407  Metal  Ore  Slag  Dumps  32 
408  Islands  32 
409  Storage  Areas  33 
410  Mud/Tidal  Flats  33 
411  Stripmines  33 
412  Quarries  33 
413  Linear  Features  —  General  34 
414  Bridges  34 
415  Overpasses  34 
416  Elevated  Roads  or  Railroads  35 
417  Causeways  35 
418  Embankments^  Cuttings  36 
419  Fences  36 
420  Walls  37 
421  Dams  37 
422  Airfield  Runways  and  Taxiways  37 
423  Wharves/Piers  37 
424  Breakwaters/Jetties  38 
425  Cliffs/Waterfalls  38 
426  Locks  (Gates  and  Walls)  38 
427  Regional  Features  38 
428  Pipelines  40 
429  Point  Features  —  General  40 
430  Miscellaneous  Significant  Features  (Obstructions)  40 
431  Isolated  Structures  42 
432  Radar  Reflectors  42a 
433  Airfield  Navigation  Aids  43 
434  Transformer  Yards  44 
435  Special  Tall  Buildings  44 
436  Electrified  Railroad  Gantries/Pylons  44a
CHAP  2,  SEC  400  PS/ZCD/100 
AMDT.  NO.  2  PS/ICE/100 
AUGUST  1980  PS/ICF/100 
PS/ICG/100 
401.  General 
Unique  significant  features  are  selected  in  accordance  with  the  size 
criteria  given  in  Tables  2-400-1  and  2-400-2  in  this  section,  under  indivi- 
dual headings.  Unique  significant  features  are  defined  as  features  that 
are  significant  but  which  do  not  meet  the  minimum  dimensions  of  a  homoge- 
neous surface  material  grouping.  The  selection  of  features  is  based  upon 
those  factors  which  are  outlined  in  the  specification  table.  These  factors 
include  such  considerations  as  type  of  feature,  surface  material  makeup, 
predominant  height,  and  minimum  dimension  requirements. 
402.  Selection  and  Portrayal 
A.  Unique  features  that  meet  the  minimum  specifications  will  be 
delineated  as  areal,  point  or  line  features  on  the  feature  manuscript. 
Unless  otherwise  specified  descriptive  information  will  be  recorded  in  the 
data  table  in  accordance  with  feature  analysis  data  table  specifications 
(Chapter  2.  Section  200).  This  information  is  determined  by  analyzing 
aerial  and  ground  photography  and  other  miscellaneous  sources. 
B.  In  areas  of  congested  detail,  a  representative  pattern  of 
features  reflecting  the  actual  shape  and  configuration  of  the  areas  will  be 
selected  for  portrayal.  Where  two  linear  features  are  too  close  together 
to  be  portrayed  separately  at  compilation  scale,  the  feature  with  predomi- 
nant characteristics  (normally  SMC)  will  be  selected  for  portrayal  (i.e., 
a  wall  adjacent  to  an  embankment)..  In  areas  where  point  features  are  too 
close  together  to  be  portrayed  separately  at  compilation  scale,  the 
features  wiv.h  predominant  reflective  characteristics  will  be  selected  for 
portrayal.  Exception:  If  two  features  occupy  the  same  position,  i.e., 
tower  on  top  of  building  or  tower  beside  building,  and  the  total  height 
exceeds  46  meters  (150  feet)  above  the  terrain,  the  portrayal  will  reflect 
the  overall  height  and  description  of  the  tallest  or  uppermost  feature. 
C.  A  representative  pattern  of  identical  features  will  be  selected 
for  portrayal  when  they  are  too  congested  for  separate  portrayal. 
D.  In  very  flat  or  sparse  areas,  minor  detail  assumes  much  greater 
significance  than  in  rolling  or  hilly  terrain,  or  areas  of  dense  culture. 
Additional  features  may  be  included  below  the  basic  specification  sizes  in 
these  circumstances.  For  example,  in  flat  areas  a  representative  pattern 
of  linear  features  will  be  delineated  on  the  feature  manuscript.  (Refer  to 
Regional  Features,  paragraph  427  for  additional  guidance.)
PS/ICD/100 
PS/ICE/100 
PS/ICF/100 
PS/ICG/100 
CHAP  2,  SEC  400 
AMDT.  MO.  2 
AUGUST  1980 
All  features  will  be  portrayed  as  the  type  shown  (areal,  line,  point)  with 
the  exception  of  those  followed  by  an  asterisk,  which  may  be  reassigned  as 
appropriate. 
TYPE 
Areal 
Railroad  Yards,  Spurs,  Sidings* 
Parking  Aprons,  Areas 
Metal  Ore  Slag  Dumps 
Islands  * 
Storage  Areas 
Mud/Tidal  .?lats 
Stripmines 
Quarries  * 
Linear 
Bridges 
Elevated  Road  or  Railroad 
Causeways 
Embankments/Cuttings 
Fences 
Walls 
Dams/Weirs 
Airfield  Runways/Taxiways 
Wharves/Piers 
Breakwaters/Jetties 
Cliffs/Waterfall 
Locks 
Regional  Features 
Pipelines 
Point 
Obstructions 
Isolated  Structures  * 
Radar  Reflectors 
Airfield  Navigation  Aids 
Transformer  Yards  * 
Special  Tall  Buildings  * 
Electrified  RR  Gantries/Pylons 
SURFACE 
MATERIAL 
MIN. 
MIN. 
MIN. 
CATEGORY 
LENGTH 
WIDTH 
HEIGHT 
NOTES 
300(1000) 
5  TRACK 
ANY 
300 (1000) 
300(1000) 
ANY 
150(500) 
150 (500) 
3(10) 
10,3 
ANY 
ANY 
ANY 
2,5 
1-5 
150 (500) 
150 (500) 
ANY 
1800(6000) 
300(1000} 
ANY 
600(2000) 
600(2000) 
5(15) 
300(1000) 
300(1000)- 
-10 (-30) 
1.2,3 
150(500) 
ANY 
ANY 
1,2,3 
600(2000) 
ANY 
5(15) 
150(500) 
ANY 
ANY 
300 (1000) 
ANY 
+  5(15) 
NOT  REQUIRED 
1,2,3 
300(1000) 
ANY 
3(10) 
150(500) 
ANY 
5(15) 
300(1000) 
ANY 
5(15) 
1000(3000} 
30(100) 
ANY 
150(500) 
ANY 
3(10) 
300 (1000) 
ANY 
ANY 
1,3 
300(1000) 
ANY 
30(100) 
2,3 
NOT  REQUIRED 
5,12 
600(2000) 
ANY 
ANY 
2,3 
600(2000) 
ANY 
ANY 
1,2,3,4 
ANY 
ANY  . 
15(50) 
1,11,10 
1,2,3 
30(100) 
ANY 
3(10) 
1,7,12,13 
ANY 
ANY 
ANY 
1,6 
NOT  REQUIRED 
30(100) 
ANY 
5(15) 
1,2,3,4 
30(100) 
ANY 
15(50) 
1,4,10 
8(25) 
.  ANY 
10(30) 
TABLE  2-400-1    LEVEL  1  UNIQUE  FEATURE  SPECIFICATIONS 
(Dimensions  in  Meters  (Feet) ) 
REFER  TO  PAGE  49  FOR  NOTES
PS/ICD/100 
PS/ICE/100 
PS/ICF/100 
PS/ICG/100 
CHAP  2,  SEC  400 
AMDT.  NO.  2 
AUGUST  1980 
All  features  will  be  portrayed  as  the  type  shown  (areal,  line,  point) 
(including  air  field  runways,  bridges,  etc.  which  may  exceed  the  maximum 
width  permitted  for  linear  features)  with  the  exception  of  those  followed 
by  an  asterisk  which  may  be  reassigned  as  appropriate. 
TYPE 
Areal 
Railroad  Yards,  Spurs,  Sidings* 
Parking  Aprons,  Areas 
Metal  Ore  Slag  Dumps 
Islands  * 
Storage  Areas 
Mud/Tidal  Flats 
Str ipmines 
Quarries  * 
Linear 
Bridges 
Elevated  Road  or  Railroad 
Causeways 
Embankments/Cuttings 
Fences 
Walls 
Dams/Weirs 
Airfield  Runways/Taxiways 
Wharves/Piers 
Breakwaters/ Jetties 
Cliffs/Waterfall 
Locks  * 
Regional  Features 
Pipelines 
Point 
Obstructions 
Isolated  Structures  * 
Radar  Reflectors 
Airfield  Navigation  Aids 
Transformer  Yards  * 
Special  Tall  Buildings  * 
Electrified  RR  Gantries/Pylons 
TABLE  2-400-2    LEVEL  2  UNIQUE  FEATURE  SPECIFICATIONS 
(Dimensions  in  Meters  (Feet)) 
REFER  TO  PAGE  49  FOR  NOTES 
SURFACE 
MATERIAL 
MIN. 
MIN. 
MIN. 
CATEGORY 
LENGTH 
WIDTH 
HEIGHT 
NOTES 
300(1000) 
5  TRACK 
ANY 
100(300) 
100(300) 
ANY 
30(100) 
30(100) 
3(10) 
10,3 
ANY 
ANY 
ANY 
2,5 
1-5 
30(100) 
30(100) 
ANY 
600(2000) 
150(500) 
ANY 
300(1000) 
300(1000) 
5(15) 
150(500) 
150(500) 
-10 (-30) 
1,2,3 
30(100) 
ANY 
ANY 
1,2,3 
300(1000) 
ANY 
5(15) 
30(100) 
ANY 
ANY 
100(300) 
ANY 
+  5(15) 
150(500) 
ANY 
3(10) 
1,6 
1,2,3 
150(500) 
ANY 
3(10) 
30(100) 
ANY 
3(10) 
100(300) 
ANY 
3(10) 
300(1000) 
15(50) 
ANY 
30(100) 
ANY 
3(10) 
100(300) 
ANY 
ANY 
1,3 
100(300) 
ANY 
10(30) 
2,3 
30(100) 
ANY 
3(10) 
2,3 
5,12 
100(300) 
ANY 
ANY 
2,3 
100(300) 
ANY 
ANY 
1,2,3,4 
ANY 
ANY 
15(50) 
1,11,10 
1,2,3 
10(30) 
ANY 
3(10) 
1,7,13 
ANY 
ANY 
ANY 
1,6 
1,2,3 
ANY 
ANY 
ANY 
1,6 
15(50) 
ANY 
3(10) 
1,2,3,4 
15(50) 
ANY 
15(50) 
1,4,10 
8(25) 
ANY 
10(30)
PS/ICD/100 
PS/ICE/100 
PS/ICF/100 
PS/ICG/100 
CHAP  2,  SEC  400 
AHDT.  NO.  2 
AUGUST  1980 
NOTES  FOR  TABLES  2-400-1  AND  2-400-2 
NOTES:   1.  Show  minimum  of  2m  (5  ft)  in  FADT. 
2.  Recorded  height  is  standardized. 
3.  Recorded  width  is  standardized. 
4.  Height  is  above  surrounding  homogeneous  area. 
5.  Height  is  required  if  shown  as  a  point  or  line  feature. 
6.  Information  relative  to  these  features  will  often  require 
reference  to  supplementary  sources. 
7.  Minimum  height  for  isolated  structures  SMC  3  is  5m  (15  feet). 
8.  Minimum  height  for  SMC  5  areas  is  5  meters  (15  feet). 
9.  The  recorded  height  for  linear  portrayal  is  standardized  as 
zero. 
10. 
SMC  4  structures  must  be  46  meters  (150  feet)  above  ground. 
11.  Standard  description  (length  =  6  meters  (20  feet) ,  width  * 
6  meters  (20  feet),  height  =  24  meters  (80  feet),  orientation 
=  360°)  shall  be  applied  to  all  lattice  type  obstructions 
that  are  less  than  46  meters  (150  feet)  in  height  except 
electrified  railroad  pylons/gantries. 
12.  The  description  for  isolated  farmhouses  and  groups  of  agri- 
cultural buildings  of  SMC  3  material  will  be  standardized  as: 
Length  and  Width  =  44  meters  (approximately  150  ft) ; 
Height  =  8  meters  (25  ft);  Orientation  =  360  ;  Feature  Iden- 
tification Code  Number  =  430. 
13.  Selection  criteria  also  applies  to  structures  within  a  rail 
yard.
WORD 
1         2         3 
123456789012345678901234567890123456 
MAN 
ZEROS  TYP  LEV 
WAG (WAC) 
NUMBER 
WAG  WAG 
(WAC)  CELL 
CELL 
LATITUDE  -  MANUSCRIPT  ORIGIN 
(1/10  SECONDS) 
LONGITUDE  -  MANUSCRIPT  ORIGIN 
(1/10  SECONDS) 
ESTIMATED  ESTIMATED 
MAXIMUM  LATITUDE   MAXIMUM  LONGITUDE 
(1/10  SECONDS)      (1/10  SECONDS) 
HASH  TOTAL 
*1 
1  I  FAC  NUMBER 
TY  PREDOM'T 
PE   HEIGHT 
FEATURE 
IDENT. 
CODE 
SMC 
TYPE  OF  FEATURE 
DEFINES  USE 
NO.  OF  PTS 
OF  FEATURE 
COORD  OF  FEATURE  COORD  OF  FEATURE 
3  t  LAT_._J1/10  SEC)    LONG.  (1/10  SEC) 
600 
601 
COORD  OF  FEATURE  COORD  OF  FEATURE 
LAT.  (1/10  SEC)    LONG.  (1/10  SEC) 
FAC  NUMBER 
HASH  TOTAL 
601 
SMC 
TYPE  OF  FEATURE 
DEFINES  USE 
NO.  OF  PTS 
OF  FEATURE 
HASH  TOTAL 
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INDUSTRIAL     FEATURES 
FEATURE 
NAME 
(Title) 
Quarry 
Gas/Oil 
Derrick 
Odshore 
Platform 
(with  derrick) 
Metal 
Processing 
Plant 
Sewage 
Treatment 
Plant 
100-iNDUSTRY 
MAP 
SYMBOL 
v 
to- 
Dim 
SYMBOL 
(3 
SAMPLE     DESCRIPTION 
.-    u 
i'l"!". 
£z   :     a; 
to  j  i: 
c3 
(5 
-10m 
(-301 
-10m 
(-301 
24m 
J80I 
24m 
180) 
24i>- 
(801 
24m 
(80) 
6  alii  6| 
i        i. 
12m 
(40) 
12m 
(40) 
12m 
(40) 
"l2in 
(401 
8m 
(25) 
8m 
(25) 
8m 
(25) 
8m 
(25) 
102 
102 
102 
102 
103 
103 
105 
105 
112 
112 
112 
112 
001 
00! 
360 
360 
360 
360 
6ni 
(20) 
6m 
(20) 
2m 
fSj 
(5) 
6m 
(201 
6m 
(20) 
113 
113 
16  I  2 
MEASUREMENTS  ARE  IN  METERS  (FETtT 
113 
113 
118m 
(390) 
28m 
(90) 
122m 
(400) 
(9(1) 
SPECIFICATIONS 
Minimum 
Selection 
Criteria 
■J.W  1   H 
SMC 
300ml300mi-l0m 
I1000H(1000H-30) 
■ 
10m 
150m 
(5002 
~300m 
1 1000) 
6m       6m 
(20)     (20)       I 
6m 
(20) 
6m 
(201 
50m 
050) 
12m 
(40) 
88m 
(290) 
10m 
(30) 
150m 
(500) 
ANY 
ANY 
150m 
(500) 
(5) 
(5) 
(-30) 
ANY 
ANY 
ANY 
ANY 
30m 
(lom 
10m 
230) 
150m 
(500) 
(100) 
ANY 
ANY 
ANY 
ANY 
150m 
(5001 
30m 
(100) 
-10m 
(-30) 
10m 
(-30) 
15m 
(50) 
15m 
(50) 
1.2 
or 
15m 
(50) 
15m 
(501 
3m 
(10) 
3m 
(10) 
3m 
H°l 
3m 
(10) 
30m 
(100) 
10m 
(302 
150m   150m 
(500)   (500) 
ANY 
ANY 
30m 
(100) 
30m 
(100) 
5m 
(151 
5m 
(15) 
5m 
05) 
5in 
(15) 
1.2 
or 
RULES/NOTES 
Height  is  measured  from  the 
deepest  pan  of  the  quarry 
Height  shall   be  shown  as  * 
negative  value. 
O  m 
o  o 
o  o 
Height  is  standard. 
Dimensions  are  standard 
When  height  eiceeds  46m  1 150 
•I.)  record  actual  dimensiuns. 
Orientation  rs  360 
Dimensions  are  standard 
When  height  eiceeds  46m  ( 1 50 
It.)  record  actual  dimensions 
Orientation  is  360  . 
1.2 
or 
1.2 
or 
SMC  3  Minimum  height  »  5m 
(15(1). 
May  also  be  shown  as  a  linear 
feature. 
Minimum  length  of  lineai 
portrayal: 
Level  1:   150m  (500  It.) 
level  2:  30m  (100  (l  i 
SMC  1,  2,  Minimum  height  »3m 
(10  HI 
May  also  be  shown  as  a  lined! 
feature. 
Mimimiim  length  of  linear 
portrayal. 
level  1:  150m  (500(1) 
Level  2:  30m  (100  ft  | 
»j  <