47909
North Carolina Seagrass Submersed Rooted Vasculars 1990 Biotic
nc90-biotic_Metadata
Data Set
Published / External
37225
Benthic
Project
Completed
2015
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
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.
10066
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.
Theme
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC
Theme
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL
Theme
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > ESTUARY
Theme
ISO 19115 Topic Category
environment
Spatial
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NORTH CAROLINA
Theme
Aquatic Bed
Theme
Biotic Component
Theme
Bushy Pondweed
Theme
CMECS
Theme
Coastal and Marine Ecological Classification Standard
Theme
Eelgrass
Theme
Estuarine Rooted Vascular
Theme
Eurasian Water Milfoil
Theme
Halodule Wrightii
Theme
Horned Pondweed
Theme
Leafy Pondweed
Theme
Living Marine Resources
Theme
Marine Rooted Vascular
Theme
Myriophyllum Spicatum
Theme
Najas Guadalupensis
Theme
Potamogeton Foliosus
Theme
Potamogeton Pectinatus
Theme
Potamogeton Perfoliatus
Theme
Redhead Grass
Theme
Rooted Vascular
Theme
Ruppia Maritima
Theme
SAV
Theme
Sago Pondweed
Theme
Seagrass
Theme
Shoalgrass
Theme
Submersed Aquatic Vegetation
Theme
Underwater Vegetation
Theme
Vallisneria Americana
Theme
Widgeon Grass
Theme
Wild Celery
Theme
Zannichellia Palustris
Theme
Zostera Marina
Spatial
Albemarle Sound
Spatial
Alligator River
Spatial
Back Sound
Spatial
Barden Inlet
Spatial
Beaufort Inlet
Spatial
Cape Hatteras
Spatial
Cape Lookout
Spatial
Coastal North Carolina
Spatial
Core Sound
Spatial
Drum Inlet
Spatial
Eastern North Carolina
Spatial
Hatteras inlet
Spatial
Neuse River Estuary
Spatial
Newport River
Spatial
North Carolina
Spatial
Ocracoke Inlet
Spatial
Oregon Inlet
Spatial
Pamlico River
Spatial
Pamlico River Estuary
Spatial
Pamlico Sound Currituck Sound Neuse River
Spatial
Pasquotank River
Spatial
Perquimans River
Spatial
Pungo River
Spatial
USA
Office for Coastal Management
Charleston
SC
Data Set
As Needed
Map (digital)
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.
49321
Biotic
Biotic
Published / External
Completed
Shallow benthic habitats CMECS 2012 biotic component polygons | Description Source: NOAA Office for Coastal Management
Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script.
1
OBJECTID
Unknown
No
No
Active
Internal feature number. | Description Source: Esri
Sequential unique whole numbers that are automatically generated.
2
SHAPE
Unknown
No
No
Active
Feature geometry. | Description Source: Esri
Coordinates defining the features.
3
CMECS_CODE
Unknown
No
No
Active
CMECS biotic unit code. | Description Source: Coastal and Marine Ecological Classification Standard, FGDC 2012
Alphanumeric code for CMECS units
4
B_SETTING
VARCHAR
No
No
Active
Biotic Setting - Indication of whether the biota are attached or closely associated with the benthos or are suspended or floating in the water column. | Description Source: Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of biotic setting units; CMECS FGDC 2012: See definitions of biotic setting units; CMECS FGDC 2012 |
5
B_CLASS
VARCHAR
No
No
Active
Biotic Class - Dominant (percent cover) taxonomy and life forms of the living components of the sampled area at a fairly coarse level. | Description Source: Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of biotic class units; CMECS FGDC 2012: See definitions of biotic class units; CMECS FGDC 2012 |
6
B_SUBCLASS
VARCHAR
No
No
Active
Biotic Subclass - Dominant (percent cover) taxonomy and life forms of the living components of the sampled area at a fairly coarse level | Description Source: Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of biotic subclass units; CMECS FGDC 2012: See definitions of biotic subclass units; CMECS FGDC 2012 |
7
B_GROUP
VARCHAR
No
No
Active
Biotic Group - Functional groupings of characteristic biological types based on finer distinctions of taxonomy, structure, position, environment, and salinity levels | Description Source: Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of biotic group units; CMECS FGDC 2012: See definitions of biotic group units; CMECS FGDC 2012 |
8
B_COMMUNITY
VARCHAR
No
No
Active
Biotic Community - repeatable, characteristic assemblages of organisms that are relatively uniform in structure, species composition, and habitat conditions | Description Source: Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of biotic community units; CMECS FGDC 2012: See definitions of biotic community units; CMECS FGDC 2012 |
9
Shape_Length
Unknown
No
No
Active
Length of line features in meters | Description Source: Esri
Distance
10
Shape_Area
Unknown
No
No
Active
Polygon area in square meters | Description Source: Esri
Area
Data Steward
2015
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Distributor
2015
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Metadata Contact
2015
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Point of Contact
2015
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Ground Condition
-77.0865
-75.4635
36.6545
34.6025
Range
1985
1990
Yes
Yes
1272
Unclassified
None
None
ftp://ftp.coast.noaa.gov/pub/benthic/Benthic_Cover_Data/NC_Coast.zip
Bulk Download
FTP download of data files.
https://coast.noaa.gov/data/Images/Collections/BenthicCover_thumbnail.jpg
Browse Graphic
Browse Graphic
JPEG
Sample of benthic cover data
http://www.cmecscatalog.org/
CMECS Catalog
Online Resource
Searchable online catalog of CMECS units, descriptions, and source references
https://coast.noaa.gov/
NOAA's Office for Coastal Management (OCM) website
Online Resource
Information on the NOAA Office for Coastal Management (OCM)
https://coast.noaa.gov/digitalcoast/
NOAA's Office for Coastal Management (OCM) Digital Coast Data section
Online Resource
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.
https://iocm.noaa.gov/cmecs
CMECS Home Page
Online Resource
Information and resources on the CMECS standard and how to apply it
2017-03-30
Date that the source FGDC record was last modified.
2017-11-14
Converted from FGDC CSDGM (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.
2018-02-08
Partial upload of Positional Accuracy fields only.
2018-04-11
Partial upload to move data access FTP links to Distribution Info and remove broken URLs.
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.
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.
The SRV data carries no vertical attributes and no
assessment or measure of vertical accuracy was conducted.
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 mean lower 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.
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.
NOS Aerial Photograph Archive
NOAA/NOS/C&CS/ Photogrammetry Branch
1990-01-01
Range
1985
1990
24000
Source photography for SAV interpretation | Source Geospatial Form: map | Type of Source Media: Film diapositives
1
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.
1990-01-01T00:00:00
2
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.
1990-01-01T00:00:00
3
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.
4
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, biotic, and biotic feature layers from the original input benthic habitat dataset. This biotic feature layer contains CMECS biotic component attributes where an "Equal" or "Nearly Equal" SCHEME value was present in the original data. Polygons for which no biotic 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.
2015-01-01T00:00:00
49321
Entity
Biotic
gov.noaa.nmfs.inport:47909
Anne Ball
2017-11-14T12:57:34
SysAdmin InPortAdmin
2023-05-30T18:09:28
2018-04-11
Office for Coastal Management
OCM
1002
Public
No
2018-04-11
1 Year
2019-04-11