Geodataset Name:       JOHN_SGRASS
Geodataset Type:       SHAPEFILE
Geodataset Feature:    POLYGON

DATA SOURCE(S):                    National Oceanic and Atmospheric Administration (NOAA)
SCALE OF ORIGINAL SOURCE MAPS:     Unknown
DATE OF AUTOMATION OF SOURCE:      March, 2000
GEODATASET EXTENT:                 State of Florida

FEATURE ATTRIBUTE TABLES:

Datafile Name: 

FEATURE ATTRIBUTE TABLES CODES AND VALUES:

Item	Item Description
FID	Internal feature number.
Shape	Feature geometry.
Id	User Assigned Unit Identification number used for data creation.
Location	Name of physical location of designated unit
Acre	Number of Acres
DESCRIPT	GeoPlan added field based on LOCATION

USER NOTES:

GeoPlan relied on the integrity of the attribute information within the original data. In addition to the coordinates provided in the Federal Register document, the following data were used to assist in the production of this dataset: US Army Corps of Engineers - IWW_IR to DA.dgn (Microstation Design File depicting the Intracoastal Waterway), Miami Harbor 83-90.dgn (Microstation Design File epicting the federally authourized navigation channels in Miami Harbor; According to the USACE, these channels are likely to be updated in the near future). St. John's River Water Management District - cb24_det.e00 (ArcInfo Interchange format file, converted to an ArcInfo Coverage depicting a detailed shoreline, last update 12/10/99.)

A note concerning data scale: Scale is an important factor in data usage. Certain scale datasetsare not suitable for some project, analysis, or modelling purposes. Please be sure you are using the best available data. 1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries. 1:100000 scale datasets are recommended for projects that are at the multi-county or regional level. 1:250000 scale datasets are recommended for projects that are at the regional or state level or larger. Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analyses. Every effort has been made to supply the user with data documentation. For additional information, see the References sectionand the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our web pages at: http://www.geoplan.ufl.edu/education.html

REFERENCES:

50 CFR Part 226

DATA LINEAGE SUMMARY:

A point layer was created using the coordinates in the Federal Register. Those points were then used to digitize polygons. The polygons were then "clipped" to a detailed shoreline (cb24_det.e00) obtained from St. John's River Water Management District (SJRWMD). Following the clip operation, microstation design files of the ICW and Miami Harbor navigation channels were obtained from the US Army Corps of Engineers (USACE) and converted to shapefiles. The final ICW shapefile was created by using a 62.5ft buffer on either side of the centerline and editing that buffer file to match the widening areas in the vicinity of the critical habitat areas. The final Miami Harbor shapefile was created by digitizing a polygon over the channel edge line work in the design file. An Edit Clip was then performed to "punch a hole" through the Critical Habitat areas where they intersected the ICW and the Miami Harbor navigation channel, thus excluding the federally authorized navigation channels from the Critical Habitat areas. Finally, the data in the vicinity of Miami Harbor in Biscayne Bay were edited visually to correspond to the paper maps in the federal register document. Additionally, all data used were reprojected to match the detailed shoreline. (UTM Zone 17, NAD 83, HARN) Process Date: 20031114 Metadata imported. Process Date: Dataset copied. Process Date: Dataset copied. Process Date: GeoPlan added Descript based on LOCATION, renamed file from john_sgrass_CH_FL_2003_po to john_sgrass.shp, and projected to FGDL Albers Process Date: 20050808

MAP PROJECTION PARAMETERS:

Projection                          ALBERS
Datum                               HPGN
Units                               METERS
Spheroid                            GRS1980
1st Standard Parallel               24  0  0.000
2nd Standard Parallel               31 30  0.000
Central Meridian                   -84 00  0.000
Latitude of Projection's Origin     24  0  0.000
False Easting (meters)              400000.00000
False Northing (meters)             0.00000

DATA SOURCE CONTACT (S):

Name:
Abbr. Name:
Address:


Phone:

Web site:
E-mail:
Contact Person:
         Phone:
        E-mail:

NOAA/NESDIS/NODC/NCDDC- National Coastal Data Development Center
NCDCC
Building 1100
Stennis Space Center, MS
39529
866-732-2382



chris.henton@noaa.gov
Chris Henton

Name:                   FLORIDA GEOGRAPHIC DATA LIBRARY
Abbr. Name:             FGDL
Address:                Florida Geographic Data Library
                        431 Architecture Building
                        PO Box 115706
                        Gainesville, FL  32611-5706
Web site:               http://www.fgdl.org

Contact FGDL: 

      Technical Support:	        http://www.fgdl.org/fgdlfeed.html
      FGDL Frequently Asked Questions:  http://www.fgdl.org/fgdlfaq.html
      FGDL Mailing Lists:		http://www.fgdl.org/fgdl-l.html
      For FGDL Software:                http://www.fgdl.org/software.html