Geodataset Name:       JSEAGRASS_CH_NOV03
Geodataset Type:       SHAPEFILE
Geodataset Feature:    Polygon
Feature Count:         10

DATA SOURCE(S):                    National Oceanic and Atmospheric Administration, National Coastal Data Development Center
SCALE OF ORIGINAL SOURCE MAPS:     Unknown
GEODATASET EXTENT:                 State of Florida

PUBLICATION DATE:                  Unpublished Material
TIME PERIOD OF CONTENT:            20031114
DOWNLOAD LINK:                     http://www.fgdl.org/metadataexplorer/explorer.jsp

FEATURE ATTRIBUTE TABLES:

Datafile Name: JSEAGRASS_CH_NOV03.DBF

FEATURE ATTRIBUTE TABLES CODES AND VALUES:

Item	Item Description
OBJECTID	Internal feature number.
Shape	Feature geometry.
Id	User Assigned Unit Identification number used for data creation.
Location	Name of physical location of designated unit
SPECIES	The species the dataset describes
ACRES	Acres of Habitat
DESCRIPT	Based on location
FGDLAQDATE	The date GeoPlan acquired the data
AUTOID	Unique ID added by GeoPlan
SHAPE.AREA	Area in meters
SHAPE.LEN	Length in meters

USER NOTES:

Unknown

Complete pending review

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 depicting the federally authorized 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.)

The purpose of these data is to visually represent the critical habitat areas for GIS analysis and display.

This data is provided 'as is' and its horizontal positional accuracy has not been verified by GeoPlan

This data is provided 'as is' and its vertical positional accuracy has not been verified by GeoPlan

Due to the collection of data used in this analysis from multiple data sources, some instances occur where the USACE ICW file intersects areas of the SJRWMD file classified as "Land", particularly in the vicinity of Hobe Sound. Clearly this is not the real world situation and efforts will be made to resolve these conflicts in the data. At this time, these were the best data available. The text description in 50 CFR Part 226 is always the one, true definition of Johnson's seagrass critical habitat. These or any other depictions are for information purposes only and shouldn't be relied on for regulatory purposes.

The Florida Geographic Data Library is a collection of Geospatial Data compiled by the University of Florida GeoPlan Center with support from the Florida Department of Transportation. GIS data available in FGDL is collected from various state, federal, and other agencies (data sources) who are data stewards, producers, or publishers. The data available in FGDL may not be the most current version of the data offered by the data source. University of Florida GeoPlan Center makes no guarantees about the currentness of the data and suggests that data users check with the data source to see if more recent versions of the data exist. Furthermore, the GIS data available in the FGDL are provided 'as is'. The University of Florida GeoPlan Center makes no warranties, guaranties or representations as to the truth, accuracy or completeness of the data provided by the data sources. The University of Florida GeoPlan Center makes no representations or warranties about the quality or suitability of the materials, either expressly or implied, including but not limited to any implied warranties of merchantability, fitness for a particular purpose, or non-infringement. The University of Florida GeoPlan Center shall not be liable for any damages suffered as a result of using, modifying, contributing or distributing the materials. A note about data scale: Scale is an important factor in data usage. Certain scale datasets are not suitable for some project, analysis, or modeling 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. 1:125000 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 analysis. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our webpage at: http://geoplan.ufl.edu/education.html

REFERENCES:

NCDDC Johnson's Seagrass Info: http://www.ncddc.noaa.gov/activities/protected-species

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 GeoPlan downloaded the data in October 2009 via the USFWS Critical Habitat portal in GCS_WGS_1984 projection. - Reprojected the dataset to FGDL Albers. - Renamed dataset from john_sgrass_CH_FL_2003_po to jseagrass_ch_nov03 - Added and calculated acres field - Upcased all fields - Added species field - Added a DESCRIPT field based on location. Process Date: 20091103 Data imported to ArcSDE and exported as a shapefile. Process Date: 20091119

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:

National Oceanic and Atmospheric Administration, National Coastal Data Development Center
NOAA NCDDC
Building 1100
Stennis Space Center, MS
39529
866-732-2382


http://www.ncddc.noaa.gov/
ncddcmetadata@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: 

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