Marine/Estuarine Aquatic Bed, Rooted Vascular (Submersed Rooted Vasculars, SRV)

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: NOAA/SEFSC/Beaufort Lab
Publication_Date: 19981201
Title:
Marine/Estuarine Aquatic Bed, Rooted Vascular (Submersed Rooted Vasculars, SRV)
Edition: 1
Geospatial_Data_Presentation_Form: Map
Publication_Information:
Publication_Place: Charleston, SC
Publisher: NOAA Coastal Services Center (CSC)
Online_Linkage: <http://www.csc.noaa.gov/digitalcoast/data/benthiccover/>
Online_Linkage: <http://www.csc.noaa.gov/>
Description:
Abstract:
A GIS data set of polygon data interpreted from aerial photography taken by NOAA/NOS Photogrammetry Branch depicting areas of Aquatic Beds of Rooted Vascular Plants in coastal north Carolina. Predominantly submersed rooted vasculars (SRV) but including some floating rooted vasculars (FRV). The nomenclature and definitions originally developed according to the Coastal Land Cover Classification System for the NOAA Coastal Change Analysis Project (C-CAP), Journal of Coastal Research 9(3):862-872 have been crosswalked into the Florida System For Classification of Habitats in Estuarine and Marine Environments (SCHEME) to build consistency with similar NOAA developed benthic data sets.
Purpose:
To improve the understanding of coastal photic submersed lands and their linkages with wetlands and uplands, and with living marine organisms. To assist government agencies and others in making resource management decisions through the use of GIS.
Supplemental_Information:
Photointerpretation with a Wild AVIOPRET stereoscope. Photographs and data were compiled on a Bausch and Lomb stereo zoom transfer scope at a scale of 1:24,000 on USGS 7.5' topographic maps or on NOAA shoreline topographic sheets scaled to 1:24,000 (original scale 1:20,000). Data is a merge of several coverages dependent on map base, photo mission, and photographic scale.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1985
Ending_Date: 1990
Currentness_Reference: Dates of Photography
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -77.0865
East_Bounding_Coordinate: -75.4635
North_Bounding_Coordinate: 36.6545
South_Bounding_Coordinate: 34.6025
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans and estuaries
Theme_Keyword: geoscientificinformation
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Submersed Aquatic Vegetation
Theme_Keyword: SAV
Theme_Keyword: Aquatic Bed
Theme_Keyword: Rooted Vascular
Theme_Keyword: Marine Rooted Vascular
Theme_Keyword: Estuarine Rooted Vascular
Theme_Keyword: Seagrass
Theme_Keyword: SAV
Theme_Keyword: Eelgrass
Theme_Keyword: Shoalgrass
Theme_Keyword: Widgeon Grass
Theme_Keyword: Zostera Marina
Theme_Keyword: Halodule Wrightii
Theme_Keyword: Ruppia Maritima
Theme_Keyword: Wild Celery
Theme_Keyword: Vallisneria Americana
Theme_Keyword: Eurasian Water Milfoil
Theme_Keyword: Myriophyllum Spicatum
Theme_Keyword: Bushy Pondweed
Theme_Keyword: Najas Guadalupensis
Theme_Keyword: Redhead Grass
Theme_Keyword: Potamogeton Perfoliatus
Theme_Keyword: Sago Pondweed
Theme_Keyword: Potamogeton Pectinatus
Theme_Keyword: Leafy Pondweed
Theme_Keyword: Potamogeton Foliosus
Theme_Keyword: Horned Pondweed
Theme_Keyword: Zannichellia Palustris
Theme_Keyword: Underwater Vegetation
Theme_Keyword: Living Marine Resources
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: North Carolina
Place_Keyword: Eastern North Carolina
Place_Keyword: Coastal North Carolina
Place_Keyword: Back Sound
Place_Keyword: Core Sound
Place_Keyword: Albemarle Sound
Place_Keyword: Pamlico Sound Currituck Sound Neuse River
Place_Keyword: Neuse River Estuary
Place_Keyword: Pamlico River
Place_Keyword: Pamlico River Estuary
Place_Keyword: Pungo River
Place_Keyword: Alligator River
Place_Keyword: Newport River
Place_Keyword: Perquimans River
Place_Keyword: Pasquotank River
Place_Keyword: Cape Lookout
Place_Keyword: Cape Hatteras
Place_Keyword: Beaufort Inlet
Place_Keyword: Barden Inlet
Place_Keyword: Drum Inlet
Place_Keyword: Ocracoke Inlet
Place_Keyword: Hatteras inlet
Place_Keyword: Oregon Inlet
Place_Keyword: USA
Access_Constraints: None
Use_Constraints:
Data set is not for use in navigation or litigation. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, NOAA cannot assume liability for any damages or misrepresentation caused by any inaccuracies in the data or as a result of the data being used on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution consititute such a warranty.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA/NOS/Coastal Services Center
Contact_Person: Mark Finkbeiner
Contact_Position: Physical Scientist
Contact_Address:
Address_Type: mailing and physical address
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: South Carolina
Postal_Code: 29405
Country: USA
Contact_Voice_Telephone: (843) 740-1264
Contact_Facsimile_Telephone: (843) 740-1289
Contact_Electronic_Mail_Address: mark.finkbeiner@noaa.gov
Hours_of_Service: 8:00 - 17:00 Eastern Time
Native_Data_Set_Environment:
Arc/Info coverage format f:\ccap2\mfinkbei\core_sound\habitat_data\nc_final

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attribute accuracy for habitat polygons has not been conducted. Field checks of all benthic signatures present in the photographs were conducted to resolve those benthic features that potentially could be confused with submersed rooted vegetation. The number and locations of site visits were based on judgement of the photointerpreter who led the field verification phase of the surface level sampling. In a second type of surface level work, a grid randomly placed on a nautical chart determined the nominal latitude and longitude of stations. These were sampled for species of submersed rooted vegetation and ancillary environmental information. The methodology was inappropriate for accuracy assessment of the remotely based haitat data for thre reasons. 1) Any plants within a quarter mile radius of the stations coordinates were sampled and indicated as positive in the field database. Rare ocurances of small clusters of plants would not be mapped from the photographs due to the minimum mapping unit. 2) Navigation to stations was accomplished with LORAN C which was spatially much less accurate than was expected with the photographic approach. Reference data must be a more reliable source than the data to be avaluated. 3) Some nominal station locations were unexpectedy deep or unsafe to approach or sample and were arbitrarily moved to an adjacent more appropriate location. This could have biased the spatial sampling.
Logical_Consistency_Report:
The classification scheme comprehensively includes all subtidal bottom classified for the presence or absence of submersed rooted vegetation. Void areas exceeding minimum mapping unit were mapped within vegetation polygons and are delineated and labeled. Overlay of the compiled and digitized polygons of vegetation included a few instances of overlap with dry land on the map base. This was particularly true for data compiled on 7.5' map bases due to the time differential between the photographic dates for the map bases (typically 1940s for shorelines and 1970's or 1980's for cultural features) and the aquatic bed photography (1985 to 1990) The shoreline moved in some cases. Logical consistency in terms of topology for vegetaion polygons was confirmed in ARC/INFO and test plots of the digitized data at the compilation sclale (1:24,000) were compared for consistency and similarity of cartographic style with the source maps and were edited if necessary.
Completeness_Report:
The classification scheme includes one class at the Class level and one at the Subclass 1 level within the SCHEME system. All SRV within the study area were delineated, unless flagged in the data set, to a depth of approximately 10 feet lower mean low water (LMLW), deeper than aquatic beds are known to grown in the study area. Limited parts of the study area were not successfully photographed and therfore data for those locations are omitted from the coverage. The photography provides a record of only a single time period so that ephemeral beds not present at the time of photography are omitted. This may be the case for some Zostera marina beds, for example, which can sprout from seed in the late spring and die due to heat stress and exposure in the summer. Zostera marina is a perennial grass which over winters as rhizomes within the substrate.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Horizontal positional accuracy has not been established for the data set. National Map Accuracy standards (at a compilation scale of 1:24,000) are assumed as the theroetical optimal accuracy of this data. Accuracy is limited by the accuracy and temporal coincidence of base map and interpretation of the aquatic bed data from photographs. In the case of USGS 7.5' topographic maps, the cultural information is more contemporary (up to 10 or 15 years out of date) than the geographic information (up to 45 years out of date). NOAA shoreline and cultural data (based on 1988 and 1991 photography) are within six years of the aquatic bed photography. The dearth of cultural information throughout most of the study area resulted in a dependency on geographic features for local horizontal control of the phoographic data. The aquatic bed photographs were more consistent with contemprorary NOAA shoreline topographic map bases (from 1988 and 1991) photography and use of these map bases presumbably increased overall accuracy of the vegetation map. Aerial photography is registered by local horizontal control to base maps in a zoom transfer scope. Reference features are readily identifiable and can be accurately positioned on the photograph and on the base map. Cultural feature are preferred and geogpracphic features are used if necesssary. The base maps are USGS 7.5' topographic series or NOAA shoreline topographic sheets.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
The SRV data carries no vertical attributes and no assessment or measure of vertical accuracy was conducted.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: NOAA/NOS/C&CS/ Photogrammetry Branch
Publication_Date: 1990
Title: NOS Aerial Photograph Archive
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Silver Spring, MD
Publisher: NOAA
Other_Citation_Details: None
Online_Linkage: None
Source_Scale_Denominator: 24,000
Type_of_Source_Media: Film diapositives
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1985
Ending_Date: 1990
Source_Currentness_Reference: Ground Condition
Source_Citation_Abbreviation: NOAA/NMFS
Source_Contribution: Source photography for SAV interpretation
Process_Step:
Process_Description:
Acquisition of metric aerial photography. Conventional color aerial photography was collected in several missions following the protocols described in NOAA Technical Report NMFS 123. Both film diapostives and paper prints were used for the interpretation.
Source_Used_Citation_Abbreviation: None
Process_Date: 1985-1990
Source_Produced_Citation_Abbreviation: None
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA/NOS/C&CS/Photogrammetry Branch
Contact_Address:
Address_Type: mailing and physical address
Address: 1315 East-West Highway
City: Silver Spring
State_or_Province: Maryland
Postal_Code: 20910
Country: USA
Contact_Voice_Telephone: None
Hours_of_Service: 8:00 - 17:00 Eastern Time
Process_Step:
Process_Description:
Compilation of Photographic Information. Aerial photos were interpreted and habitats delineated on acetate overlays affixed to the film. Field information was used to guide this mapping process. The interpreted photo delineations were then transfered to hard-copy base maps using a zoom-transfer scope to fit the polygons to a planimetric base.
Source_Used_Citation_Abbreviation: None
Process_Date: 1990
Source_Produced_Citation_Abbreviation: None
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Organization: NOAA/NMFS/SEFSC/Beaufort Lab
Contact_Person: Lisa Wood
Contact_Position: Photogrammetrist
Contact_Address:
Address_Type: mailing and physical address
Address: 101 Pivers Island Rd.
City: Beaufort
State_or_Province: North Carolina
Postal_Code: 28516
Country: USA
Contact_Voice_Telephone: 252-728-8742
Contact_Facsimile_Telephone: 252-728-8784
Contact_Electronic_Mail_Address: lisa.wood@noaa.gov
Hours_of_Service: 8:00 - 17:00 Eastern Time
Process_Step:
Process_Description:
Digitization of Compiled Photographic Interpretations. 1:24,000 scale bases were supplied to CGIA by the NOAA/NMFS/SEFSC/Beaufort Lab. These were used to digitize the delineated areas of SRV. All digital files were later compiled into one digital GIS data set. Checkplots were created for review by the Beaufort Lab and any corrections made.
Source_Used_Citation_Abbreviation: None
Process_Date: Unknown
Source_Produced_Citation_Abbreviation: None
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Organization: North Carolina Center for Geographic Information and Analysis
Contact_Person: Ken Shaffer
Contact_Position: Senior GIS analyst
Contact_Address:
Address_Type: mailing and physical address
Address: 301 North Wilmington Street, Suite 700
City: Raleigh
State_or_Province: North Carolina
Postal_Code: 27601
Country: USA
Contact_Voice_Telephone: Unknown
Contact_Facsimile_Telephone: Unknown
Contact_Electronic_Mail_Address: Unknown
Hours_of_Service: 8:30 - 17:30 Eastern Time

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 1368

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: 0.999600
Longitude_of_Central_Meridian: -75.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: Coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.0000001
Ordinate_Resolution: 0.0000001
Planar_Distance_Units: Meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6,378,137
Denominator_of_Flattening_Ratio: 298.257

Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
One polygonal vector data set depicting Submersed Rooted Vascular vegetaion ISRV) habitats. Each habitat polygon has an areal extent expressed in hectare units. Each polygon is also assigned a code value which corresponds to the SCHEME Class or Subclass 1 designation. The data are for presence or absence of SRV habitat only with a minimum detection unit of approximately 1 meter and a minimum mapping unit of 0.03 hectares. Attribute data do not include species or SRV or ambient salinity.
Entity_and_Attribute_Detail_Citation:
The nomenclature and code values for all polygons are consistent with the System for Classification of Habitats in Estuarine and Marine Environments (SCHEME) in Florida.
Detailed_Description:
Entity_Type:
Entity_Type_Label: nc90
Entity_Type_Definition: SCHEME Classification
Entity_Type_Definition_Source: NOAA
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: AREA
Attribute_Definition: Area of feature in meters squared.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute_Label: PERIMETER
Attribute_Definition: Perimeter of delineted polygons in meters.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute_Label: AREA_HEC
Attribute_Definition: Polygon area in hectares.
Attribute_Definition_Source: NMFS
Attribute_Domain_Values:
Unrepresentable_Domain: Date
Attribute:
Attribute_Label: HABITAT
Attribute_Definition: SAV presence or absence.
Attribute_Definition_Source: NMFS
Attribute_Domain_Values:
Unrepresentable_Domain: Date
Attribute:
Attribute_Label: CLASS
Attribute_Definition:
Classes describe the general dominant life forms or the physiography and composition of the substrate.
Attribute_Definition_Source: SCHEME
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: SCHEME System
Codeset_Source: Florida Fish and Wildlife Conservation Commission
Attribute:
Attribute_Label: SUBCLASS1
Attribute_Definition:
Subclasses define habitats with finer resolution descriptions or with geographic extents that require field measurements for verification.
Attribute_Definition_Source: SCHEME
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: SCHEME System
Codeset_Source: Florida Fish and Wildlife Conservation Commission
Attribute:
Attribute_Label: SUBCLASS2
Attribute_Definition:
Subclasses define habitats with finer resolution descriptions or with geographic extents that require field measurements for verification.
Attribute_Definition_Source: SCHEME
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: SCHEME System
Codeset_Source: Florida Fish and Wildlife Conservation Commission
Attribute:
Attribute_Label: SUBCLASS3
Attribute_Definition:
Subclasses define habitats with finer resolution descriptions or with geographic extents that require field measurements for verification.
Attribute_Definition_Source: SCHEME
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: SCHEME System
Codeset_Source: Florida Fish and Wildlife Conservation Commission
Attribute:
Attribute_Label: SUBCLASS4
Attribute_Definition:
Subclasses define habitats with finer resolution descriptions or with geographic extents that reqire field measurements for verification.
Attribute_Definition_Source: SCHEME
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: SCHEME System
Codeset_Source: Florida Fish and Wildlife Conservation Commission
Attribute:
Attribute_Label: Modifier
Attribute_Definition:
The modifiers allow detailed information to be included at all levels of the structure.
Attribute_Definition_Source: SCHEME
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: SCHEME System
Codeset_Source: Florida Fish and Wildlife Conservation Commission
Attribute:
Attribute_Label: TAXONOMIC
Attribute_Definition:
Taxonomic modifiers classify complex habitats with mixed geological and biological components.
Attribute_Definition_Source: SCHEME
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: SCHEME System
Codeset_Source: Florida Fish and Wildlife Conservation Commission
Attribute:
Attribute_Label: SCHEME_COD
Attribute_Definition: Numeric value for SCHEME class and subclass units
Attribute_Definition_Source: SCHEME
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: SCHEME System
Codeset_Source: Florida Fish and Wildlife Conservation Commission

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coastal Services Center
Contact_Person: Benthic mapping project leader
Contact_Position: Remote sensing specialist
Contact_Address:
Address_Type: mailing and physical address
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: South Carolina
Postal_Code: 29405
Country: USA
Contact_Voice_Telephone: 843-740-1264
Contact_Facsimile_Telephone: 843-740-1289
Contact_Electronic_Mail_Address: mark.finkbeiner@noaa.gov
Hours_of_Service: 8:00 - 17:00 Eastern Time
Resource_Description:
This data was generated by the NOAA Beaufort Lab as a pilot methods development project for the NOAA NMFS Coastal Change Analysis Program. The benthic component of the program is now managed and implemented by the NOAA NOS Coastal Services Center. Recoding of the original classification attributes into the SCHEME system has been conducted in order to bring consistency to benthic data generated by the program. The original data compiled in the North Carolina State Plane coordinate system, zone 3200 with a North American Datum of 1983 has been reprojected into a Universal Transverse Mercator projection, zone 18 to allow other benthic data to be integrated on a regional basis.
Distribution_Liability:
Although every effort has been made to ensure the accuracy of information, errors, and conditions originating from physical methods used to develop the data may exist. Users must assume resposibility to determine the appropriate use of these data. The data are not recommended for use in legal determinations and are intended for regional change analysis only.

Metadata_Reference_Information:
Metadata_Date: 20030924
Metadata_Review_Date: 20120402
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coastal Services Center
Contact_Person: Benthic mapping project leader
Contact_Position: Remote sensing specialist
Contact_Address:
Address_Type: Mailing and physical address
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: South Carolina
Postal_Code: 29405
Country: USA
Contact_Voice_Telephone: 843-740-1264
Contact_Facsimile_Telephone: 843-740-1289
Contact_Electronic_Mail_Address: clearinghouse@noaa.gov
Hours_of_Service: 8:00 - 17:00 Eastern Time
Metadata_Standard_Name: FGDC CSDGM
Metadata_Standard_Version: FGDC-STD-001-1998

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