Skip to main content Stratification of Mississippi 2004Frequently-anticipated questions:- What does this data set describe?    - How should this data set be cited?      What geographic area does the data setcover?      What does it look like?      Does the data set describe conditionsduring a particular time period?      What is the general form of this data set?      How does the data set represent geographicfeatures?      How does the data set describe geographicfeatures?      Who produced the data set?    - Who are the originators of the data set?      Who also contributed to the data set?      To whom should users address questions aboutthe data?      Why was the data set created?  How was the data set created?    - From what previous works were the data drawn?      How were the data generated, processed, andmodified?      What similar or related data should the userbe aware of?      How reliable are the data; what problemsremain in the data set?    - How well have the observations beenchecked?      How accurate are the geographiclocations?      How accurate are the heights or depths?      Where are the gaps in the data? What ismissing?      How consistent are the relationshipsamong the data, including topology?      How can someone get a copy of the data set?    - Are there legal restrictions on accessor use of the data?      Who distributes the data?      What's the catalog number I need toorder this data set?      What legal disclaimers am I supposed toread?      How can I download or order the data?      Who wrote the metadata?  What does this data set describe?- Title:  Stratification of Mississippi 2004
- Abstract: 
- The United States Department of Agriculture (USDA), NationalAgricultural Statistics Service (NASS) area sampling frame is adelineation of all parcels of land for the purpose of later samplingtheparcels. The area frame is constructed by visually interpretingsatelliteimagery to divide a state into homogenous land use areas (strata) basedon percent cultivated. The strata are typically defined as low, mediumorhigh percent cultivated, non-agricultural land, urban use, agri-urban,orwater. The boundaries of the strata usually follow identifiablefeaturessuch as roads, railroads and waterways. The strata boundaries do notcoincide with any political boundaries, with the exception of stateboundaries.  
- Supplemental_Information:  N/A
- **How should this data set be cited?**United States Department of Agr, National AgriculturalStatistics Service, 2003, Stratification of Mississippi 2004: U.S.Department of Agriculture, National Agricultural Statistics Service,Fairfax, Virginia.      
Online Links:      
- < https://www.nass.usda.gov/Research_and_Science/>        **What geographic area does the data set cover?**- West_Bounding_Coordinate:  -91.65
- East_Bounding_Coordinate:  -88.10
- North_Bounding_Coordinate:  35.00
- South_Bounding_Coordinate:  30.17
**What does it look like?****Does the data set describe conditions duringa particular time period?**- Calendar_Date: 2004
- Currentness_Reference: 
- 2004: Topology check performed (gaps and overlaps removed).2003: Modification of state frame to identify catfish ponds.1998: Creation of original area sampling frame strata boundaries.      
**What is the general form of this data set?****How does the data set represent geographicfeatures?**- **How are geographic features stored inthe data set?**- Indirect_Spatial_Reference: 
- U.S. Department of Commerce, 1988, Counties andEquivalentEntities of The United States, Its Possessions, andAssociated Areas (Federal Information Processing Standard6-4): Washington, D.C. National Institute of Standards andTechnology.          
This is a Vector data set.It contains the following vector data types (SDTS terminology):        - G-Polygon (6347 (prior to dissolving boundaries))          
**What coordinate system is used torepresent geographic features?**- Grid_Coordinate_System_Name:  UniversalTransverse Mercator
- Universal_Transverse_Mercator: 
-    - UTM_Zone_Number:  16
  - Transverse_Mercator: 
  -      - Scale_Factor_at_Central_Meridian:  0.9996
    - Longitude_of_Central_Meridian:  -87.00
    - Latitude_of_Projection_Origin:  0.0
    - False_Easting:  500000.00
    - False_Northing:  0.0 

Planar coordinates are encoded using row and columnAbscissae (x-coordinates) are specified to the nearest 30Ordinates (y-coordinates) are specified to the nearest 30Planar coordinates are specified in meters

The horizontal datum used is North American Datum of 1983.The ellipsoid used is Geodetic Reference 80.The semi-major axis of the ellipsoid used is 6378137.00.The flattening of the ellipsoid used is 1/298.257.
**How does the data set describe geographicfeatures?**- Land Use Strata
- Homogeneous land use area based on percentcultivated (Source: U.S. Department of Agriculture, NationalAgricultural Statistics Service)             - Strata
  - Land use category based on percent cultivated (Source:U.S. Department of Agriculture, National Agricultural StatisticsService)                 Land Use Based on Percent CultivatedValueDefinition11 75% cultivated, (cultivated categories consist of land used forcrops, the remaining portion of land in the cultivated strata mayinclude pasture, woods, waste, rangeland, etc.)                  1251%-75% cultivated, (cultivated categoriesconsist of land used forcrops, the remaining portion of land in the cultivated strata mayinclude pasture, woods, waste, rangeland, etc.)                  2015%-50% Cultivated                  31Agri-urban with > 100 homes per square mile(less than 15%cultivated)                  32Commercial/dense urban with > 100 homes persquare mile (city centerwith 0% cultivated)                  40< 15% cultivated, (cultivated categoriesconsist of land used forcrops, the remaining portion of land in the cultivated strata mayinclude pasture, woods, waste, rangeland, etc.)                  42Catfish Ponds                  50Non-Agriculture                  62Water                     
  - Sum_Area
  - The stratum area in square miles. (Source: U.S.Department of Agriculture, National Agricultural Statistics Service)                 Number of Acres in StratumRange of valuesMinimum:39.951 (actual value, not range)Maximum:30090.197(actual value, not range)   
  - Sum_Acres
  - The number of acres in a stratum. (Source: U.S.Department of Agriculture, National Agricultural Statistics Service)                 Stratum Area in Square MilesRange of valuesMinimum:25568.399 (actual value, not range)Maximum:19257649.551(actual value, not range)   
  - Cnt_Strata
  - Count of strata polygons in each strata prior todissolving into a single strata (Source: U.S. Department ofAgriculture, National Agricultural Statistics Service)                 Number of Acres in StratumRange of valuesMinimum:23Maximum:2816   
Who produced the data set?- **Who are the originators of the data set?**(may include formal authors, digital compilers, and editors)    - United States Department of Agriculture, NationalAgricultural      
**Who also contributed to the data set?**Area Frame Section staff    **To whom should users address questions aboutthe data?**Area Frame Section staffUSDA/NASS/RDD/AFS3251 Old Lee Highway, Suite 305Washington, D.C. 20250
703-877-8000 (voice)HQ_RD_OD@nass.usda.gov
Why was the data set created?These data are intended for geographic display and analysis at thestatelevel. The data should be displayed and analyzed at a scale of1:100,000 or smaller (e.g., 1:250,000, etc.). The strata data areprovided "as is". USDA/NASS does not warrant results you may obtainusing the strata data.How was the data set created?- **From what previous works were the data drawn?**- TopoDRG  (source 1 of 5)      
-  Systems, Titan, 1995, SureMaps Raster: TitanSystems, San Diego, CA.              - Type_of_Source_Media:  CD ROM
  - Source_Scale_Denominator:  100000
  - Source_Contribution:  spatial and attributeinformation   
- TM5imagery  (source 2 of 5)      
-  Imaging, Space, 1997, 2000, Landsat 5 ThematicMapper imagery: Space Imaging, Lanham, MD.              - Type_of_Source_Media:  CD ROM
  - Source_Contribution:  spatial and attributeinformation   
- Ag-Census  (source 3 of 5)      
-  U.S. Dept. of Agriculture, National AgriculturalStatistics Service, 1997, Census of Agriculture: U.S. Department ofAgriculture, National Agricultural Statistics Service, Washington, D.C..              - Type_of_Source_Media:  Paper
  - Source_Contribution:  spatial and attributeinformation   
- Ag-Stats  (source 4 of 5)      
-  Mississippi Dept. of Agriculture and Commerce &NASS, 1997, Mississippi Agricultural Statistics: Mississippi Dept. ofAgriculture and Commerce & NASS, Jackson, Mississippi.              - Type_of_Source_Media:  paper
  - Source_Contribution:  spatial and attributeinformation   
- JES  (source 5 of 5)      
-  USDA, National Agricultural Statistics Service,1997, June Enumerative Surveys.              - Type_of_Source_Media:  paper
  - Source_Contribution:  spatial and attributeinformation   
**How were the data generated, processed, andmodified?**- Date: 1998 (process 1 of 3)      
- The area sampling frame for Mississippi was constructed in1998 for usein 1999 and was based on SureMaps - USGS 1:100,000 Topo DRGs andLandsat5 imagery.         Data sources used in this process:            - TopoDRG          
  - TM5imagery          
  - Ag-Census          
  - Ag-Stats          
  - JES   
- Date: 2003 (process 2 of 3)      
- The area sampling frame was modified to include catfish pondsand identify cotton better.          
- Date: 2004 (process 3 of 3)      
- Individual county files were merged into a single state fileand dissolved by strata. Topology was constructed in a personalgeodatabase data format where overlaps and gaps were corrected. Thedatawere exported to Environmental Systems Research Institute's Arcviewshapefile format. Coordinates for the strata polygons are unprojectedtogeographic latitude and longitude (decimal degrees) referenced to theNorth American Datum of 1983 (NAD83).          
**What similar or related data should the userbe aware of?**How reliable are the data; what problems remainin the data set?- **How well have the observations beenchecked?****How accurate are the geographic locations?**
The sources used for digitizing strata boundaries are 1:100,000scaleDigital Raster Graphics    
**How accurate are the heights or depths?****Where are the gaps in the data? What ismissing?**
There are no known gaps or missing data. This data set includesthe area insquare miles and number of acres for each strata. Because the areasamplingframe strata boundaries are modified, the boundaries may not becoincidentwith strata boundaries of adjacent states.    
**How consistent are the relationships amongthe observations, including topology?**
Checks for topological consistency were performedon this data set.    
How can someone get a copy of the data set?**Are there legal restrictions on access or useof the data?**- Access_Constraints:  None
- Use_Constraints: 
- None. Acknowledgment of the U.S. Department of Agriculture,NationalAgricultural Statistics Service would be appreciated in productsderivedfrom these data.      
- **Who distributes the data set?**(Distributor 1 of 1)    USDA/NASS/RDD3251 Old Lee Highway, Suite 305Washington, D.C. 20250
703-877-8000 (voice)
- Contact_Instructions:  N/A
**What's the catalog number I need to orderthis data set?****What legal disclaimers am I supposed toread?**Users of the strata data are solely responsible forinterpretations madefrom the product. The strata data are provided "as is". USDA/NASS doesnot warrant results you may obtain by using the strata data. Feel freetocontact our staff at (HQ_RD_OD@nass.usda.gov) if technical questionsarisein the use of the strata data.    **How can I download or order the data?**- Availability in digital form:    Data FormatData format:ESRI Shapefile              Network links:<https://www.nass.usda.gov/Research_and_Science/>Cost to order the data:
 There is no charge for theonline option.        
Special instructions:
N/A        
Who wrote the metadata?- Dates:  
- Last modified: 18-Nov-2004  
- Metadata author:  
-  Lee PlowmanUSDA/NASS/RDD3251 Old Lee Highway, Suite 305Washington, D.C. 20250
703-877-8000 (voice)HQ_RD_OD@nass.usda.gov
 
- Metadata standard: 
- FGDC Content Standards for Digital Geospatial Metadata(FGDC-STD-001-1998)
Generated by mpversion 2.8.22 on Wed Feb 06 14:03:47 2008