Submerged Aquatic Vegetation in Barnegat Bay - 1968 (sav68.shp)

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Grant F. Walton Center for Remote Sensing and Spatial Analysis

(CRSSA), Rutgers University

Publication_Date: 19990706

Title: Submerged Aquatic Vegetation in Barnegat Bay - 1968

Publication_Information:

Publication_Place: New Brunswick, New Jersey

Publisher: CRSSA, Rutgers University

Description:

Abstract:

The Submerged Aquatic Vegetation in Barnegat Bay - 1968 shapefile (sav68.shp) was created

as part of the 'Landscape Scale Approaches to Coastal Habitat Conservation - Barnegat Bay'

study. This study focuses on the loss of submerged aquatic vegetation (SAV) that is occuring

in Barnegat Bay as a result of human modification and decreasing water quality in the bay and

watershed. The shapefile was digitized in an effort to document and assess long-term trends

of habitat loss in the Barnegat Bay region. The areas delineated in this coverage were digitized

from the Army Corps of Engineers and the State of New Jersey's 1968 Aquatic Plant Survey

Area Map. The map was included as part of Design Memorandum #1 of the Aquatic Plant

Control Project for the State of New Jersey, submitted in March 1976. It should be noted that the

purpose of this document was to investigate problems associated with "excessive aquatic plant

growth" and to determine methods to resolve the perceived problem. Areas of overly abundant

sea lettuce, eelgrass, and wigeongrass growth were deemed "infested" and in most cases these

species were considered weeds. These aquatic plants were described as "nuisances to navigation,

recreation, and public health". Sav68.shp  was created through the digitization of aquatic plant

delineations mapped in the 1968 Aquatic Plant Survey Map. The digitized areas were subsequently

compared with the NJDEP "coast" coverage (editted to coastply2) to ensure spatial accuracy.

Purpose:

The sav68.shp was created as part of the 'Landscape Scale Approaches to Coastal Habitat

Conservation - Barnegat Bay' study. This study focuses on the loss of submerged aquatic

vegetation (SAV) that is occuring in Barnegat Bay as a result of human modification and

decreasing water quality in the bay and watershed across time.  CRSSA has also compiled

other subsequent SAV studies conducted in the 1970's, 1980's, and 1990's and created

shapefiles to facilitate habitat loss assessment in Barnegat Bay.

Supplemental_Information:

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19990701

Ending_Date: 19990706

Currentness_Reference: Publication Date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Irregular

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: 556483.875

East_Bounding_Coordinate: 580840.688

North_Bounding_Coordinate: 4434874.000

South_Bounding_Coordinate: 4373527.500

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: submerged aquatic vegetation

Theme_Keyword: boating

Theme_Keyword: geographic information systems

Theme_Keyword: GIS

Theme_Keyword: CRSSA

Theme_Keyword: Rutgers University

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: United States

Place_Keyword: New Jersey

Place_Keyword: Barnegat Bay

Place_Keyword: Little Egg Harbor

Access_Constraints: None

Use_Constraints:

These maps, as presented on this web site, provide a regional picture of SAV distribution at various points in time and are not intended for site level permit applications or litigation purposes. These maps and data, alone, are not sufficient to determine the presence or absence of SAV. Conclusive evidence concerning the presence or absence of SAV requires site inspections, preferably at several points in time during the SAV growing season.

While efforts have been made to ensure that these data are accurate and reliable within the state of the art, Rutgers University cannot assume liability for any damages, or misrepresentations, caused by any inaccuracies in the data. Rutgers University makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.

Any maps, publications, reports or any other type of document produced as a result of utilizing this data will credit the original map author(s) as listed as well as the Center for Remote Sensing and Spatial Analysis (CRSSA), Rutgers University.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Grant F. Walton Center for Remote Sensing and Spatial Analysis

(CRSSA), Rutgers University

Contact_Position:

Contact_Person:

Contact_Address:

Address_Type: mailing and physical address

Address:14 College Farm Road

City: New Brunswick

State_or_Province: New Jersey

Postal_Code: 08901

Country: United States

Contact_Voice_Telephone: 732-932-1582

Contact_Electronic_Mail_Address: bbay@crssa.rutgers.edu

Hours_of_Service: Monday-Friday, 8am-5pm, Eastern Standard Time

Native_Data_Set_Environment: Arc/Info 8.x  databank

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The sav68 coverage was compared to existing Arc/INFO coverages of Barnegat Bay

and the New Jersey coastline (coastply2) to ensure spatial accuracy. The original source

paper map had no graticule and was not georeferenced.

Logical_Consistency_Report:

Completeness_Report: Complete

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Horizontal accuracy is based on geo-spatial comparsion to rectified

orthophotography and mutiple digital boundary sources.

Vertical_Positional_Accuracy_Report:

Vertical accuracy is based on geo-spatial comparsion to rectified

orthophotography and mutiple digital boundary sources.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator:

Army Corp of Engineers and the State of New Jersey's Aquatic Plant Survey

Project

Publication_Date: 197603

Publication_Time: Unknown

Title:

Source_Scale_Denominator:

Type_of_Source_Media: Paper maps

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19680220

Ending_Date: 19750214

Source_Currentness_Reference:

Source_Citation_Abbreviation:

Source_Contribution: spatial and attribute information

Process_Step:

Process_Description:

Sav68.shp was created through the digitization of aquatic plant delineations mapped in the 1968 Aquatic

Plant Survey Map. Forty-three ground control points were established by comparing the source map (1968 Aquatic
Plant Survey) to a reference image (NOAA nautical chart image 123161.img) using Erdas Imagine. The SAV68
coverage was then compared to existing Arc/Info coverages of Barnegat Bay and the New Jersey coastline
(coastply2) to ensure spatial accuracy. The original paper source map had no graticule and was not geo-referenced.

Source_Used_Citation_Abbreviation:

Process_Date: 19990701

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Organization: CRSSA, Rutgers University

Contact_Person: Paul Bowers

Contact_Position: GIS Specialist

Contact_Address:

Address_Type: mailing and physical address

Address: 14 College Farm Road

City: New Brunswick

State_or_Province: New Jersey

Postal_Code: 08901

Country: USA

Contact_Voice_Telephone: 732-932-1582

Contact_Facsimile_Telephone: 732-932-2587

Contact_Electronic_Mail_Address: bbay@crssa.rutgers.edu

Hours_of_Service: Monday-Friday, 8am-5pm, Eastern

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method:

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 18

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996

Longitude_of_Central_Meridian: -75.00

Latitude_of_Projection_Origin:

False_Easting: 500000

False_Northing: 0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution:

Ordinate_Resolution:

Planar_Distance_Units: Meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: GRS 1980

Semi-major_Axis: 6378206.4

Denominator_of_Flattening_Ratio: 294.98

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: sav68.shp

Entity_Type_Definition:

Polygon's areas of submerged aquatic vegetation

Entity_Type_Definition_Source:

Attribute:

Attribute_Label: Area

Attribute_Definition: Area of polygon in square meters

Attribute_Definition_Source: CRSSA

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 33.748

Range_Domain_Maximum: 82690546.405

Attribute_Units_of_Measure: square meters

Attribute_Measurement_Resolution:

Attribute:

Attribute_Label: Perimeter

Attribute_Definition: Perimeter of polygon in meters

Attribute_Definition_Source: CRSSA

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 28.294

Range_Domain_Maximum: 134504.220

Attribute_Units_of_Measure: meters

Attribute_Measurement_Resolution:

Attribute:

Attribute_Label: sav68_id

Attribute_Definition: Unique identifiers for all features

Attribute_Definition_Source: CRSSA

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1

Range_Domain_Maximum: 52

Attribute_Units_of_Measure: numerical

Attribute_Measurement_Resolution:

Attribute:

Attribute_Label: Gridcode

Attribute_Definition: Code values representing species type

Attribute_Definition_Source: CRSSA

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 4

Attribute_Units_of_Measure: numerical

Attribute_Measurement_Resolution:

Attribute:

Attribute_Label: Species

Attribute_Definition: Descibes species type

Attribute_Definition_Source: CRSSA

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum:

Range_Domain_Maximum:

Attribute_Units_of_Measure: nominal

Attribute_Measurement_Resolution:

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: CRSSA, Rutgers University

Contact_Person: Dr. Richard G. Lathrop

Contact_Position: Director - CRSSA

Contact_Address:

Address_Type: mailing and physical address

Address: 14 College Farm Road

City: New Brunswick

State_or_Province: New Jersey

Postal_Code: 08901

Country: United States

Contact_Voice_Telephone: 732-932-1582

Contact_Electronic_Mail_Address: bbay@crssa.rutgers.edu

Resource_Description:

Sav68.shp was created as part of the 'Landscape Scale Approaches to Coastal Habitat

Conservation - Barnegat Bay' study.

Distribution_Liability:

These maps, as presented on this web site, provide a regional picture of SAV distribution at various points in time and are not intended for site level permit applications or litigation purposes. These maps and data, alone, are not sufficient to determine the presence or absence of SAV. Conclusive evidence concerning the presence or absence of SAV requires site inspections, preferably at several points in time during the SAV growing season.

While efforts have been made to ensure that these data are accurate and reliable within the state of the art, Rutgers University cannot assume liability for any damages, or misrepresentations, caused by any inaccuracies in the data. Rutgers University makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.

Custom_Order_Process: Contact CRSSA

Metadata_Reference_Information:

Metadata_Date: 20000407

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: CRSSA, Rutgers University

Contact_Person: Dr. Richard G. Lathrop

Contact_Address:

Address_Type: mailing and physical address

Address: 14 College Farm Road

City: New Brunswick

State_or_Province: New Jersey

Postal_Code: 08901

Country: United States

Contact_Voice_Telephone: 732-932-1582

Contact_Electronic_Mail_Address: bbay@crssa.rutgers.edu

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998