North Carolina Seagrass Submersed Rooted Vasculars 1990 Substrate
Data Set (DS) | Office for Coastal Management (OCM)GUID: gov.noaa.nmfs.inport:47912 | Updated: May 30, 2023 | Published / External
Summary
Short Citation
Office for Coastal Management, 2024: North Carolina Seagrass Submersed Rooted Vasculars 1990 Substrate, https://www.fisheries.noaa.gov/inport/item/47912.
Full Citation Examples
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.
Original contact information:
Contact Org: NOAA Office for Coastal Management
Phone: 843-740-1202
Email: coastal.info@noaa.gov
Distribution Information
Controlled Theme Keywords
BENTHIC, COASTAL, environment, ESTUARY
Child Items
Type | Title |
---|---|
Entity | Substrate |
Contact Information
Point of Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov
Metadata Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov
Extents
-77.0865° W,
-75.4635° E,
36.6545° N,
34.6025° S
1985 - 1990
Item Identification
Title: | North Carolina Seagrass Submersed Rooted Vasculars 1990 Substrate |
---|---|
Short Name: | nc90-substrate_Metadata |
Status: | Completed |
Publication Date: | 2015 |
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. Original contact information: Contact Org: NOAA Office for Coastal Management Phone: 843-740-1202 Email: coastal.info@noaa.gov |
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. |
Notes: |
10069 |
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. |
Keywords
Theme Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC
|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL
|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > ESTUARY
|
ISO 19115 Topic Category |
environment
|
UNCONTROLLED | |
None | Aquatic Bed |
None | Bushy Pondweed |
None | CMECS |
None | Coastal and Marine Ecological Classification Standard |
None | Eelgrass |
None | Estuarine Rooted Vascular |
None | Eurasian Water Milfoil |
None | Halodule Wrightii |
None | Horned Pondweed |
None | Leafy Pondweed |
None | Living Marine Resources |
None | Marine Rooted Vascular |
None | Myriophyllum Spicatum |
None | Najas Guadalupensis |
None | Potamogeton Foliosus |
None | Potamogeton Pectinatus |
None | Potamogeton Perfoliatus |
None | Redhead Grass |
None | Rooted Vascular |
None | Ruppia Maritima |
None | Sago Pondweed |
None | SAV |
None | Seagrass |
None | Shoalgrass |
None | Submersed Aquatic Vegetation |
None | Substrate Component |
None | Underwater Vegetation |
None | Vallisneria Americana |
None | Widgeon Grass |
None | Wild Celery |
None | Zannichellia Palustris |
None | Zostera Marina |
Spatial Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Location Keywords |
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NORTH CAROLINA
|
UNCONTROLLED | |
None | Albemarle Sound |
None | Alligator River |
None | Back Sound |
None | Barden Inlet |
None | Beaufort Inlet |
None | Cape Hatteras |
None | Cape Lookout |
None | Coastal North Carolina |
None | Core Sound |
None | Drum Inlet |
None | Eastern North Carolina |
None | Hatteras inlet |
None | Neuse River Estuary |
None | Newport River |
None | North Carolina |
None | Ocracoke Inlet |
None | Oregon Inlet |
None | Pamlico River |
None | Pamlico River Estuary |
None | Pamlico Sound Currituck Sound Neuse River |
None | Pasquotank River |
None | Perquimans River |
None | Pungo River |
None | USA |
Physical Location
Organization: | Office for Coastal Management |
---|---|
City: | Charleston |
State/Province: | SC |
Data Set Information
Data Set Scope Code: | Data Set |
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Maintenance Frequency: | As Needed |
Data Presentation Form: | Map (digital) |
Distribution Liability: |
NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. |
Support Roles
Data Steward
Date Effective From: | 2015 |
---|---|
Date Effective To: | |
Contact (Organization): | NOAA Office for Coastal Management (NOAA/OCM) |
Address: |
2234 South Hobson Ave Charleston, SC 29405-2413 |
Email Address: | coastal.info@noaa.gov |
Phone: | (843) 740-1202 |
URL: | https://coast.noaa.gov |
Distributor
Date Effective From: | 2015 |
---|---|
Date Effective To: | |
Contact (Organization): | NOAA Office for Coastal Management (NOAA/OCM) |
Address: |
2234 South Hobson Ave Charleston, SC 29405-2413 |
Email Address: | coastal.info@noaa.gov |
Phone: | (843) 740-1202 |
URL: | https://coast.noaa.gov |
Metadata Contact
Date Effective From: | 2015 |
---|---|
Date Effective To: | |
Contact (Organization): | NOAA Office for Coastal Management (NOAA/OCM) |
Address: |
2234 South Hobson Ave Charleston, SC 29405-2413 |
Email Address: | coastal.info@noaa.gov |
Phone: | (843) 740-1202 |
URL: | https://coast.noaa.gov |
Point of Contact
Date Effective From: | 2015 |
---|---|
Date Effective To: | |
Contact (Organization): | NOAA Office for Coastal Management (NOAA/OCM) |
Address: |
2234 South Hobson Ave Charleston, SC 29405-2413 |
Email Address: | coastal.info@noaa.gov |
Phone: | (843) 740-1202 |
URL: | https://coast.noaa.gov |
Extents
Currentness Reference: | Ground Condition |
---|
Extent Group 1
Extent Group 1 / Geographic Area 1
W° Bound: | -77.0865 | |
---|---|---|
E° Bound: | -75.4635 | |
N° Bound: | 36.6545 | |
S° Bound: | 34.6025 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
---|---|
Start: | 1985 |
End: | 1990 |
Spatial Information
Spatial Representation
Representations Used
Vector: | Yes |
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Vector Representation 1
Complex Object Present?: | Yes |
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Complex Object Count: | 1388 |
Access Information
Security Class: | Unclassified |
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Data Access Constraints: |
None |
Data Use Constraints: |
None |
Distribution Information
Distribution 1
Download URL: | ftp://ftp.coast.noaa.gov/pub/benthic/Benthic_Cover_Data/NC_Coast.zip |
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Distributor: | |
File Name: | Bulk Download |
Description: |
FTP download of data files. |
URLs
URL 1
URL: | https://iocm.noaa.gov/cmecs |
---|---|
Name: | CMECS Home Page |
URL Type: |
Online Resource
|
Description: |
Information and resources on the CMECS standard and how to apply it |
URL 2
URL: | http://www.cmecscatalog.org/ |
---|---|
Name: | CMECS Catalog |
URL Type: |
Online Resource
|
Description: |
Searchable online catalog of CMECS units, descriptions, and source references |
URL 3
URL: | https://coast.noaa.gov/digitalcoast/ |
---|---|
Name: | NOAA's Office for Coastal Management (OCM) Digital Coast Data section |
URL Type: |
Online Resource
|
Description: |
The website provides not only coastal data, but also the tools, training, and information needed to make these data truly useful. Content comes from many sources, all of which are vetted by NOAA. |
URL 4
URL: | https://coast.noaa.gov/ |
---|---|
Name: | NOAA's Office for Coastal Management (OCM) website |
URL Type: |
Online Resource
|
Description: |
Information on the NOAA Office for Coastal Management (OCM) |
URL 5
URL: | https://coast.noaa.gov/data/Images/Collections/BenthicCover_thumbnail.jpg |
---|---|
Name: | Browse Graphic |
URL Type: |
Browse Graphic
|
File Resource Format: | JPEG |
Description: |
Sample of benthic cover data |
Activity Log
Activity Log 1
Activity Date/Time: | 2017-03-30 |
---|---|
Description: |
Date that the source FGDC record was last modified. |
Activity Log 2
Activity Date/Time: | 2017-11-14 |
---|---|
Description: |
Converted from FGDC CSDGM (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details. |
Activity Log 3
Activity Date/Time: | 2018-02-08 |
---|---|
Description: |
Partial upload of Positional Accuracy fields only. |
Activity Log 4
Activity Date/Time: | 2018-04-11 |
---|---|
Description: |
Partial upload to move data access FTP links to Distribution Info and remove broken URLs. |
Data Quality
Accuracy: |
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 judgment 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 habitat data for three reasons. 1) Any plants within a quarter mile radius of the stations coordinates were sampled and indicated as positive in the field database. Rare occurrences 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 evaluated. 3) Some nominal station locations were unexpectedly deep or unsafe to approach or sample and were arbitrarily moved to an adjacent more appropriate location. This could have biased the spatial sampling. |
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Horizontal Positional Accuracy: |
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 theoretical 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 photographic data. The aquatic bed photographs were more consistent with contemporary NOAA shoreline topographic map bases (from 1988 and 1991) photography and use of these map bases presumably 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 geographic features are used if necessary. The base maps are USGS 7.5' topographic series or NOAA shoreline topographic sheets. |
Vertical Positional Accuracy: |
The SRV data carries no vertical attributes and no assessment or measure of vertical accuracy was conducted. |
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 (MLLW), deeper than aquatic beds are known to grown in the study area. Limited parts of the study area were not successfully photographed and therefore 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. |
Conceptual Consistency: |
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 vegetation polygons was confirmed in ARC/INFO and test plots of the digitized data at the compilation scale (1:24,000) were compared for consistency and similarity of cartographic style with the source maps and were edited if necessary. |
Lineage
Sources
NOS Aerial Photograph Archive
Contact Name: | NOAA/NOS/C&CS/ Photogrammetry Branch |
---|---|
Publish Date: | 1990-01-01 |
Extent Type: | Range |
Extent Start Date/Time: | 1985 |
Extent End Date/Time: | 1990 |
Scale Denominator: | 24000 |
Source Contribution: |
Source photography for SAV interpretation | Source Geospatial Form: map | Type of Source Media: Film diapositives |
Process Steps
Process Step 1
Description: |
Acquisition of metric aerial photography. Conventional color aerial photography was collected in several missions between 1985 and 1990 following the protocols described in NOAA Technical Report NMFS 123. Both film diapositives and paper prints were used for the interpretation. |
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Process Date/Time: | 1990-01-01 00:00:00 |
Process Step 2
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 transferred to hard-copy base maps using a zoom-transfer scope to fit the polygons to a planimetric base. |
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Process Date/Time: | 1990-01-01 00:00:00 |
Process Step 3
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. |
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Process Step 4
Description: |
The data were converted from a single ESRI polygon shapefile classified according to the System for Classifying Habitats in Estuarine and Marine Environments (SCHEME) to the Coastal and Marine Ecological Classification Standard (CMECS) 2012 format (which can be found at https://coast.noaa.gov/digitalcoast/tools/cmecs-crosswalk) which produces separate geoform, substrate, and substrate feature layers from the original input benthic habitat dataset. This substrate feature layer contains CMECS substrate component attributes where an "Equal" or "Nearly Equal" SCHEME value was present in the original data. Polygons for which no substrate information was present have been removed. No other changes to the original polygon boundaries or any other alterations of the original SCHEME data were made during this process. |
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Process Date/Time: | 2015-01-01 00:00:00 |
Child Items
Rubric scores updated every 15m
Type | Title | |
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Entity | Substrate |
Catalog Details
Catalog Item ID: | 47912 |
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GUID: | gov.noaa.nmfs.inport:47912 |
Metadata Record Created By: | Anne Ball |
Metadata Record Created: | 2017-11-14 12:57+0000 |
Metadata Record Last Modified By: | SysAdmin InPortAdmin |
Metadata Record Last Modified: | 2023-05-30 18:09+0000 |
Metadata Record Published: | 2018-04-11 |
Owner Org: | OCM |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2018-04-11 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2019-04-11 |