Identification_Information
     Citation
          Citation_Information
	       Originator:  NOAA Coastal Services Center
	       Publication_Date:  1997
	       Title:  New Technologies for Coastal Mapping
	            Subtitle:  Hurricane Erin Sea Surface Temperature
	       Geospatial_Data_Presentation_Form:  remote-sensing image
	       Publication_Information
	       Publication_Place:  Charleston, South Carolina
	       Publisher:  NOAA Coastal Services Center
Description
     Abstract: 
          These data consist of retrospective sea surface temperature (SST) images
	  from the period around the landfall of hurricane Erin.  This imagery was 
	  derived from the advanced very high resolution radiometer (AVHRR) sensor 
	  aboard the NOAA series polar-orbiting satellites and covers the coastal
	  areas of the Gulf of Mexico.  9 unique SST images are included on the 
	  CD-ROM during the time period surrounding Erin's landfall from July 24 to
	  August 4, 1995.  Image resolution is 1.3 km.
     Purpose: 
	  The purpose of these data is to provide simplified, rapid access to the 
	  conditions of SST before and after hurricane Erin.  These images can assist
	  and inform marine scientists and coastal fisheries resource managers of 
	  typical synoptic surface oceanographic structure.  
     Supplemental_Information: 
          The original hurricane SST imagery was cropped, georeferenced, navigated
	  and registered to a continental outline (vector).  Subsequently it was
	  processed to add a landmask, temperature scale, and annotation.  The data 
	  imagery is contained in a GEOTIFF image graphics file.  Also available on
	  the CD-ROM is a freeware version of PCI Handler (one compiled and one 
	  compressed) for viewing the GEOTIFF images.  The inclusion of any software 
	  does not imply endorsement.
Time_Period_of_Content
     Time_Period_Information
	  Range_of_Dates/Times
	       Beginning_Date:  July 24, 1995
	       Ending_Date:  August 4, 1995
     Currentness_Reference:  
	  Time and Date of AVHRR scene and ground condition
Status
     Progress:  Complete
     Maintenance_and_Update_Frequency:  none planned
Spatial_Domain
     Bounding_Coordinates
	  West_Bounding_Coordinate:  89.90691W
	  East_Bounding_Coordinate:  78.07965W
	  North_Bounding_Coordinate:  31.79490N
	  South_Bounding_Coordinate:  25.94527N
	  Coordinate_Corner_Locations:  Locations are the edges of bounding coordinates
                                        not the centers      
Keywords
     Theme
	  Theme_Keyword_Thesaurus:  none
	  Theme_Keyword:  Sea Surface Temperature
	  Theme_Keyword:  Advanced Very High Resolution Radiometer (AVHRR)
	  Theme_Keyword:  High Resolution Picture Transmission (HRPT)
	  Theme_Keyword:  remote-sensing
	  Theme_Keyword:  satellite
	  Theme_Keyword:  hurricane
	  Theme_Keyword:  coastal erosion
	  Theme_Keyword:  oceanography
	  Theme_Keyword:  ocean currents
     Place
	  Place_Keyword_Thesaurus:  none
	  Place_Keyword:  United States of America
	  Place_Keyword:  Southeast
	  Place_Keyword:  Gulf of Mexico
	  Place_Keyword:  Florida
	  Place_Keyword:  Vero Beach
	  Place_Keyword:  Pensacola
Access_Constraints:  none
Use_Constraints:  
     Data set is not for use in litigation or suitable for use in navigation. 
     Commercial use is prohibited.
Point_of_Contact
     Contact_Organization:  NOAA Coastal Services Center
     Contact_Person:  John Brock
     Contact_Address
	  Address_Type:  mailing and physical
	  Address:  2234 South Hobson Avenue
	  City:  Charleston
	  State_or_Province:  South Carolina
	  Postal_Code:  29405-2413
     Contact_Voice_Telephone:  (803) 974-6200
     Contact_Electronic_Mail_Address:  crs@csc.noaa.gov
Data_Quality_Information
     Attribute_Accuracy
          Attribute_Accuracy_Report:
	       The calculation of SST from satellite derived thermal infrared
	       brightness temperatures is performed using a multi-channel sea surface
	       temperature (MCSST) algorithm.  This algorithm uses a difference of 
	       AVHRR channel 4 and 5 brightness temperatures to estimate a correction
	       for atmospheric water vapor content, the largest error source in the
	       computation of SST.  This algorithm is empirical in nature and uses
	       coefficients derived from regressing satellite radiance against in-\
	       situ global buoy SST observations.  For further information visit 
	       the NESDIS homepage (http://ns.noaa.gov/NESDIS/NESDIS_Home.html) and
	       the NOAA Satellite Information System (NOAASIS).  Cloud free regions 
	       within these images are generally accurate to within +/- 0.5 degC. 
	       Noise limited temperature precision is approximately 0.2 degC.
     Logical_Consistency_Report:  
	  Post processing analysis indicated all image files contained SST data and 
	  were consistently geo-located through hand navigation and registration to
	  within one pixel (~ 1 km).
     Completeness_Report:  
	  Images in this data set were chosen based on being relatively cloud free 
	  and having good registration accuracy. A total of 13 images were processed
	  with 9 selected for inclusion on the CD-ROM based on the above criteria.
     Positional_Accuracy
	  Horizontal_Positional_Accuracy:
	       The grid size for all the images is 850x450 pixels.
     Lineage
	       Source_Information
	       Source_Citation
	            Citation_Information
    	                 Originator:  NOAA
		         Publication_Date:  Acquisition date of actual image
		         Title:  New Technologies for Coastal Mapping
			      Subtitle:  Hurricane Erin Sea Surface Temperature
		         Edition:  NA
		         Geospatial_Data_Presentation_Form:  remote-sensing image
		         Publication_Information
		              Publication_Place:  Silver Springs, Maryland
		              Publisher:  NOAA
		         Source_Scale_Denominator:  unknown
		         Type_of_Source_Media:  CD-ROM
		         Source_Time_Period_of_Content
			      Time_Period_Information
			           Range_of_Dates/Time
				        Calender_Date:  July 24 - August 4, 1995
				        Time_of_Day:  various
			      Source_Currentness_Reference:  Dates of images
		         Source_Citation_Abbreviation:  AVHRR
		         Source_Contribution:  Sea Surface Temperature
	       Process_Description:  
		    The USGS program AVHRRMAP7 was used to produce SST maps from the
		    AVHRR data in level 1b format.  The image data were scaled into a 
		    temperature range of -5 to 37.5 degC.  Each image was cropped for
		    the specific viewing area and then hand navigated to a
		    continental outline of the outline of the coast.  A 
		    raster landmask the hurricane ground track, text annotation and
		    the temperature scale (color bar)were "burned" into each image.
		    Images were converted to JPEG and TIFF format.  The raster cell 
		    (pixel) values in the JPEG image are radiometrically meaningless.
		    The colors in the image are representative of temperature only as 
		    they relate to the temperature scale values.  The pixel values in
		    the TIFF images are radiometrically correct.  As one byte  
	  	    integers they represent temperature counts from 0-255 that 
		    encompass a temperature range of -5 to 37.5 degC (i.e., 
		    SST = (DN-30)/6).  Land is always represented as value 254 (gray)
		    and coastline and state boundaries as 0 (black).  Areas of no 
		    data are also represented as value 0 while clouds are represented
		    by value 255 (white).
               Process_Date: 1997
Spatial_Data_Organization_Information
     Direct_Spatial_Reference_Method:  Raster
	  Raster_Object_Information
	       Raster_Object_type:  Pixel
	       Row_Count:  450
	       Column_Count:  850
Spatial_Reference_Information
     Horizontal_Coordinate_System_Definition
	  Geographic
	       Latitude Resolution:  1.3 km
	       Longitude Resolution: 1.3 km
	       Geographic_Coordinate_Units:  meters
               Map_Projection
		    Map_Projection_Name:  Albers Conical Equal Area
			 Standard_Parallels: 20 (1st) and 45 (2nd)
			 Longitude_of_Central_Meridian:  0
			 Longitude_of_Projection_Origin:  -80
			 Latitude_of_Projection_Origin:  30
			 False_Easting: 0.0 
			 False_Northing: 0.0
          Geodetic_Model:  unknown
	       Horizontal_Datum_Name:  unknown
	       Ellipsoid_Name:  Clark 1866
	       Semi-major_Axis:  6378206.4
	       Denominator_of_Flattening_Ratio:  unknown
Entity_and_Attribute_Information
     Overview_Description
          Entity_and_Attribute_Overview:  AVHHR SST data
	  Entity_and_Attribute_Detail_Citation
	       Originator:  NOAA Coastal Services Center
	       Publication_Date:  1997
	       Title:  New Technologies for Coastal Mapping
		    Subtitle:  Hurricane Erin Sea Surface Temperature
	       Geospatial_Data_Presentation_Form:  remote-sensing image
	       Publication_Information
		    Publication_Place:  Charleston, South Carolina
		    Publisher:  NOAA Coastal Services Center
Distribution_Information
     Distributor
	  Contact_Information
	       Contact_Organization_Primary
	            Contact_Organization:  NOAA Coastal Services Center
	            Contact_Person:  John Brock
	            Contact_Address
			 Address_Type:  mailing and physical
			 Address:  2234 South Hobson Avenue
			 City:  Charleston
			 State_or_Province:  South Carolina
			 Postal_Code:  29405-2413
	       Contact_Voice_Telephone:  (803) 974-6200
	       Contact_Electronic_Mail_Address:  crs@csc.noaa.gov
	       Resource_Description:  CD-ROM
	       Distribution_Liability:  none
Metadata_Reference_Information
     Metadata_Date: 19970909
     Metadata_Contact
	  Contact_Information
	       Contact_Organization_Primary
		    Contact_Organization:  NOAA Coastal Services Center
		    Contact_Person:  John Brock
		    Contact_Address
			 Address_Type:  mailing and physical
			 Address:  2234 South Hobson Avenue
			 City:  Charleston
			 State_or_Province:  South Carolina
			 Postal_Code:  29405-2413
		    Contact_Voice_Telephone:  (803)974-6200
		    Contact_Electronic_Mail_Address:  crs@csc.noaa.gov
     Metadata_Standard_Name:  FGDC Content Standards for Digital Geospatial Metadata
     Metadata_Standard_Version:  19940608