PK d_KHd`0Q Q , CMECS Benthic Cover/me97-biotic_Metadata.xml
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM)
Maine Department of Marine Resources
2015
Coastal Maine Submerged Aquatic Vegetation Data 1993-1997 Biotic
1
Map
Charleston, SC
NOAA's Ocean Service, Office for Coastal Management (OCM)
ftp://ftp.coast.noaa.gov/pub/benthic/Benthic_Cover_Data/ME_coast.zip
https://coast.noaa.gov/digitalcoast/publications/cmecs
http://www.cmecscatalog.org/
https://coast.noaa.gov/digitalcoast/
https://coast.noaa.gov/
Maine's eelgrass (SAV) meadows form an important aquatic habitat for the state. These meadows provide shelter for juvenile fish, and invertebrates. In certain locations they also help stabilize unconsolidated sediments and shorelines. Maine's Department of Marine Resources has mapped the SAV habitat for the entire coast using the Coastal Change Analysis Protocol. This mapping was accomplished from aerial photography acquired between 1993 and 1997. The unified coastal SAV data set is a composite of these multiple year data. The benthic data is classified according to the System for Classification of Habitats in Estuarine and Marine Environments (SCHEME). This system is fully described in "Development of a System for Classification of Habitats in Estuarine and Marine Environments (SCHEME) for Florida, Report to U.S. EPA - Gulf of Mexico Program, Florida Fish and Wildlife Conservation Commission, Florida Marine Research Institute. Review Draft 12/04/02."
The state of Maine is mapping and monitoring SAV beds to assist in locating sensitive areas for protection in the event of an oil spill. The SAV maps also will form a baseline to determine trends in this system.
1993
1997
ground condition
As needed
-70.8867
-66.9743
45.1121
43.0552
None
Environmental Monitoring
SAV
Eelgrass
Benthic
Habitat
Seagrass
Spill
Aquatic
Subtidal
OCM Benthic Habitat Mapping
None
CMECS
Coastal and Marine Ecological Classification Standard
Biotic Component
ISO 19115 Topic Category
environment
None
Coastal Maine
Casco Bay
Penobscot Bay
Frenchman Bay
Englishman Bay
None
None
NOAA Office for Coastal Management
mailing and physical
2234 South Hobson Avenue
Charleston
SC
29405-2413
843-740-1202
coastal.info@noaa.gov
https://coast.noaa.gov/data/Images/Collections/BenthicCover_thumbnail.jpg
Sample of benthic cover data
JPEG
Thematic accuracy was checked using GPS controlled navigation to representative areas of the coastline. The vector polygon data was loaded into a field PC and displayed in ArcView software. A tracking software allowed the analyst to travel to specific points in the data with precision and to check the type of habitat in the field. Sample sites were selected based on their location and distribution along the coast. No empirical accuracy statistics were generated.
Following interpretation and digitization, a Arc format polygon coverage was produced using the BUILD commands. An editing process was also conducted to ensure proper polygon labeling and closure.
All SAV habitat interpretable from aerial imagery was mapped. No gaps exist in the geographic distribution of the data.
Horizontal accuracy meets national map accuracy standards. This was one of the most important factors in the initial field visit.
Vertical accuracy was not tested.
James Sewall Inc.
1993
Conventional color metric aerial photography
1
map
Old Town, ME
James Sewall Inc.
Aerial photography acquired according to C-CAP protocol. Coastal Change Analysis Program (C-CAP): Guidance for Regional Implementation. NMFS Technical Report 123.
12000
color film diapositives
1993
1997
Ground Condition
Unknown
The aerial photography was used to identify and delineate SAV habitat. In addition, the photos form the backdrop for certain field operations
Aerial photography acquisition Conventional color (Kodak Aerochrome 2448) film was acquired over the Maine coast at a nominal scale of 1:12,000. The coast was flown in an incremental fashion in 1993, 1994, 1995, 1996, and 1997. The film was flown according to the environmental parameters recommended in the C-CAP protocol. The mission specifications included 60% endlap and 30% sidelap for adjacent lines. A 153mm color corrected lens and Wild RC10 camera were used to collect the imagery.Process Date Range is 1993-1997
1997
Seth Barker
Maine Department of Marine Resources
mailing and physical
Fisheries Research Lab
West Boothbay Harbor
Maine
04575
USA
(207) 633-9500
Mon-Fri 8am-5pm Eastern Time
Photo-Interpretation: The duplicated film diapositives were interpreted monoscopically on a large-format light table. SAV habitat was annotated on acetate overlays attached to the film. The habitat was assigned to 1 of four density classes based on percent ground coverage by actual eelgrass. The photography was interpreted by a skilled analyst who is very familiar with the local environment. GPS controlled field work was used to develop signatures suitable form mapping.Process Date Range is 1993-1997
1997
Seth Barker
Maine Department of Marine Resources
mailing and physical
Fisheries Research Lab
West Boothbay Harbor
Maine
04575
USA
(207) 633-9500
Mon-Fri 8am-5pm Eastern Time
Data Vectorization: At the conclusion of the interpretation process, the diapositives were with overlays attached were placed on the light table below mylar USGS 7.5 minute quads. The photos were manually fitted to the USGS map and the habitat polygons were transferred to the quad mylars. Then the annotated mylar was scanned and an automated vectorization software was used to capture the linework as ESRI vectors. These vectors were manually edited and a polygon coverage was built using ArcInfo software. The benthic data is classified according to the System for Classification of Habitats in Estuarine and Marine Environments (SCHEME). This system is fully described in "Development of a System for Classification of Habitats in Estuarine and Marine Environments (SCHEME) for Florida, Report to U.S. EPA - Gulf of Mexico Program, Florida Fish and Wildlife Conservation Commission, Florida Marine Research Institute. Review Draft 12/04/02."Process Date Range is 1993-1997
1997
Seth Barker
Maine Department of Marine Resources
mailing and physical
Fisheries Research Lab
West Boothbay Harbor
Maine
04575
USA
(207) 633-9500
Mon-Fri 8am-5pm Eastern Time
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
Vector
GT-polygon composed of chains
6242
Universal Transverse Mercator
19
0.999600
-69.000000
0.000000
500000.000000
0.000000
coordinate pair
0.0000001
0.0000001
Meters
North American Datum of 1983
GRS 80
6378137.0000000
298.26
Biotic
Shallow benthic habitats CMECS 2012 biotic component polygons
NOAA Office for Coastal Management
OBJECTID
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
SHAPE
Feature geometry.
Esri
Coordinates defining the features.
Shape_Length
Length of line features in meters
Esri
Distance
Shape_Area
Polygon area in square meters
Esri
Area
CMECS_CODE
CMECS biotic unit code.
Coastal and Marine Ecological Classification Standard, FGDC 2012
Alphanumeric code for CMECS units
B_SETTING
Biotic Setting - Indication of whether the biota are attached or closely associated with the benthos or are suspended or floating in the water column.
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
CMECS FGDC 2012
B_CLASS
Biotic Class - Dominant (percent cover) taxonomy and life forms of the living components of the sampled area at a fairly coarse level.
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
CMECS FGDC 2012
B_SUBCLASS
Biotic Subclass - Dominant (percent cover) taxonomy and life forms of the living components of the sampled area at a fairly coarse level
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
CMECS FGDC 2012
B_GROUP
Biotic Group - Functional groupings of characteristic biological types based on finer distinctions of taxonomy, structure, position, environment, and salinity levels
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
CMECS FGDC 2012
B_COMMUNITY
Biotic Community - repeatable, characteristic assemblages of organisms that are relatively uniform in structure, species composition, and habitat conditions
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
CMECS FGDC 2012
Percent_Cover
Percent cover values from CMECS modifier
Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of modifier units; CMECS FGDC 2012
See definitions of modifier units; CMECS FGDC 2012
CMECS FGDC 2012
NOAA Office for Coastal Management
mailing and physical
2234 South Hobson Avenue
Charleston
SC
29405-2413
843-740-1202
coastal.info@noaa.gov
Downloadable Data
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.
ESRI Arc Export format
Coastal Change Analysis Program: Maine SAV data set
https://coast.noaa.gov/benthic/data/northeast/maine.htm
None
20160211
NOAA Office for Coastal Management
mailing and physical
2234 South Hobson Avenue
Charleston
SC
29405-2413
843-740-1202
coastal.info@noaa.gov
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
PK `KHMe 1 CMECS Benthic Cover/me97-geodatabase_Metadata.xml
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM)
Maine Department of Marine Resources
2015
Coastal Maine Submerged Aquatic Vegetation Data 1993-1997 Geodatabase
1
Map
Charleston, SC
NOAA's Ocean Service, Office for Coastal Management (OCM)
ftp://ftp.coast.noaa.gov/pub/benthic/Benthic_Cover_Data/ME_coast.zip
https://coast.noaa.gov/digitalcoast/publications/cmecs
http://www.cmecscatalog.org/
https://coast.noaa.gov/digitalcoast/
https://coast.noaa.gov/
Maine's eelgrass (SAV) meadows form an important aquatic habitat for the state. These meadows provide shelter for juvenile fish, and invertebrates. In certain locations they also help stabilize unconsolidated sediments and shorelines. Maine's Department of Marine Resources has mapped the SAV habitat for the entire coast using the Coastal Change Analysis Protocol. This mapping was accomplished from aerial photography acquired between 1993 and 1997. The unified coastal SAV data set is a composite of these multiple year data. The benthic data is classified according to the System for Classification of Habitats in Estuarine and Marine Environments (SCHEME). This system is fully described in "Development of a System for Classification of Habitats in Estuarine and Marine Environments (SCHEME) for Florida, Report to U.S. EPA - Gulf of Mexico Program, Florida Fish and Wildlife Conservation Commission, Florida Marine Research Institute. Review Draft 12/04/02."
The state of Maine is mapping and monitoring SAV beds to assist in locating sensitive areas for protection in the event of an oil spill. The SAV maps also will form a baseline to determine trends in this system.
This file geodatabase contains three feature layers corresponding to the CMECS 2012 Substrate and Biotic components. These layers were converted from an earlier version classified according to the System for Classifying Habitats in Estuarine and Marine Environments (SCHEME) using the CMECS Crosswalk Tool. Each feature layer has its own metadata record describing the attributes, and data development methods associated with it.
1993
1997
ground condition
As needed
-70.8867
-66.9743
45.1121
43.0552
None
Environmental Monitoring
SAV
Eelgrass
Benthic
Habitat
Seagrass
Spill
Aquatic
Subtidal
OCM Benthic Habitat Mapping
None
CMECS
Coastal and Marine Ecological Classification Standard
Geoform Component
Biotic Component
Substrate Component
ISO 19115 Topic Category
environment
None
Coastal Maine
Casco Bay
Penobscot Bay
Frenchman Bay
Englishman Bay
None
None
NOAA Office for Coastal Management
mailing and physical
2234 South Hobson Avenue
Charleston
SC
29405-2413
843-740-1202
coastal.info@noaa.gov
https://coast.noaa.gov/data/Images/Collections/BenthicCover_thumbnail.jpg
Sample of benthic cover data
JPEG
NOAA Office for Coastal Management
mailing and physical
2234 South Hobson Avenue
Charleston
SC
29405-2413
843-740-1202
coastal.info@noaa.gov
Downloadable Data
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.
ESRI Arc Export format
Coastal Change Analysis Program: Maine SAV data set
https://coast.noaa.gov/benthic/data/northeast/maine.htm
None
20160211
NOAA Office for Coastal Management
mailing and physical
2234 South Hobson Avenue
Charleston
SC
29405-2413
843-740-1202
coastal.info@noaa.gov
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
PK e`KHB_O _O - CMECS Benthic Cover/me97-geoform_Metadata.xml
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM)
Maine Department of Marine Resources
2015
Coastal Maine Submerged Aquatic Vegetation Data 1993-1997 Geoform
1
Map
Charleston, SC
NOAA's Ocean Service, Office for Coastal Management (OCM)
ftp://ftp.coast.noaa.gov/pub/benthic/Benthic_Cover_Data/ME_coast.zip
https://coast.noaa.gov/digitalcoast/publications/cmecs
http://www.cmecscatalog.org/
https://coast.noaa.gov/digitalcoast/
https://coast.noaa.gov/
Maine's eelgrass (SAV) meadows form an important aquatic habitat for the state. These meadows provide shelter for juvenile fish, and invertebrates. In certain locations they also help stabilize unconsolidated sediments and shorelines. Maine's Department of Marine Resources has mapped the SAV habitat for the entire coast using the Coastal Change Analysis Protocol. This mapping was accomplished from aerial photography acquired between 1993 and 1997. The unified coastal SAV data set is a composite of these multiple year data. The benthic data is classified according to the System for Classification of Habitats in Estuarine and Marine Environments (SCHEME). This system is fully described in "Development of a System for Classification of Habitats in Estuarine and Marine Environments (SCHEME) for Florida, Report to U.S. EPA - Gulf of Mexico Program, Florida Fish and Wildlife Conservation Commission, Florida Marine Research Institute. Review Draft 12/04/02."
The state of Maine is mapping and monitoring SAV beds to assist in locating sensitive areas for protection in the event of an oil spill. The SAV maps also will form a baseline to determine trends in this system.
1993
1997
ground condition
As needed
-70.8867
-66.9743
45.1121
43.0552
None
Environmental Monitoring
SAV
Eelgrass
Benthic
Habitat
Seagrass
Spill
Aquatic
Subtidal
OCM Benthic Habitat Mapping
None
CMECS
Coastal and Marine Ecological Classification Standard
Geoform Component
ISO 19115 Topic Category
environment
None
Coastal Maine
Casco Bay
Penobscot Bay
Frenchman Bay
Englishman Bay
None
None
NOAA Office for Coastal Management
mailing and physical
2234 South Hobson Avenue
Charleston
SC
29405-2413
843-740-1202
coastal.info@noaa.gov
https://coast.noaa.gov/data/Images/Collections/BenthicCover_thumbnail.jpg
Sample of benthic cover data
JPEG
Thematic accuracy was checked using GPS controlled navigation to representative areas of the coastline. The vector polygon data was loaded into a field PC and displayed in ArcView software. A tracking software allowed the analyst to travel to specific points in the data with precision and to check the type of habitat in the field. Sample sites were selected based on their location and distribution along the coast. No empirical accuracy statistics were generated.
Following interpretation and digitization, a Arc format polygon coverage was produced using the BUILD commands. An editing process was also conducted to ensure proper polygon labeling and closure.
All SAV habitat interpretable from aerial imagery was mapped. No gaps exist in the geographic distribution of the data.
Horizontal accuracy meets national map accuracy standards. This was one of the most important factors in the initial field visit.
Vertical accuracy was not tested.
James Sewall Inc.
1993
Conventional color metric aerial photography
1
map
Old Town, ME
James Sewall Inc.
Aerial photography acquired according to C-CAP protocol. Coastal Change Analysis Program (C-CAP): Guidance for Regional Implementation. NMFS Technical Report 123.
12000
color film diapositives
1993
1997
Ground Condition
Unknown
The aerial photography was used to identify and delineate SAV habitat. In addition, the photos form the backdrop for certain field operations
Aerial photography acquisition Conventional color (Kodak Aerochrome 2448) film was acquired over the Maine coast at a nominal scale of 1:12,000. The coast was flown in an incremental fashion in 1993, 1994, 1995, 1996, and 1997. The film was flown according to the environmental parameters recommended in the C-CAP protocol. The mission specifications included 60% endlap and 30% sidelap for adjacent lines. A 153mm color corrected lens and Wild RC10 camera were used to collect the imagery.Process Date Range is 1993-1997
1997
Seth Barker
Maine Department of Marine Resources
mailing and physical
Fisheries Research Lab
West Boothbay Harbor
Maine
04575
USA
(207) 633-9500
Mon-Fri 8am-5pm Eastern Time
Photo-Interpretation: The duplicated film diapositives were interpreted monoscopically on a large-format light table. SAV habitat was annotated on acetate overlays attached to the film. The habitat was assigned to 1 of four density classes based on percent ground coverage by actual eelgrass. The photography was interpreted by a skilled analyst who is very familiar with the local environment. GPS controlled field work was used to develop signatures suitable form mapping.Process Date Range is 1993-1997
1997
Seth Barker
Maine Department of Marine Resources
mailing and physical
Fisheries Research Lab
West Boothbay Harbor
Maine
04575
USA
(207) 633-9500
Mon-Fri 8am-5pm Eastern Time
Data Vectorization: At the conclusion of the interpretation process, the diapositives were with overlays attached were placed on the light table below mylar USGS 7.5 minute quads. The photos were manually fitted to the USGS map and the habitat polygons were transferred to the quad mylars. Then the annotated mylar was scanned and an automated vectorization software was used to capture the linework as ESRI vectors. These vectors were manually edited and a polygon coverage was built using ArcInfo software. The benthic data is classified according to the System for Classification of Habitats in Estuarine and Marine Environments (SCHEME). This system is fully described in "Development of a System for Classification of Habitats in Estuarine and Marine Environments (SCHEME) for Florida, Report to U.S. EPA - Gulf of Mexico Program, Florida Fish and Wildlife Conservation Commission, Florida Marine Research Institute. Review Draft 12/04/02."Process Date Range is 1993-1997
1997
Seth Barker
Maine Department of Marine Resources
mailing and physical
Fisheries Research Lab
West Boothbay Harbor
Maine
04575
USA
(207) 633-9500
Mon-Fri 8am-5pm Eastern Time
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, geoform, and geoform feature layers from the original input benthic habitat dataset. This geoform feature layer contains CMECS geoform component attributes where an "Equal" or "Nearly Equal" SCHEME value was present in the original data. Polygons for which no geoform 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
Vector
GT-polygon composed of chains
6715
Universal Transverse Mercator
19
0.999600
-69.000000
0.000000
500000.000000
0.000000
coordinate pair
0.0000001
0.0000001
Meters
North American Datum of 1983
GRS 80
6378137.0000000
298.26
Geoform
Shallow benthic habitats CMECS 2012 geoform component polygons
NOAA Office for Coastal Management
OBJECTID
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
SHAPE
Feature geometry.
Esri
Coordinates defining the features.
Shape_Length
Length of line features in meters
Esri
Distance
Shape_Area
Polygon area in square meters
Esri
Area
CMECS_CODE
CMECS biotic unit code.
Coastal and Marine Ecological Classification Standard, FGDC 2012
Alphanumeric code for CMECS units
TECTPROV
Tectonic Setting - Continental scale geomorphological setting of the study area.
Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of geoform tectonic province units; CMECS FGDC 2012
See definitions of geoform setting units; CMECS FGDC 2012
CMECS FGDC 2012
PHYSIOPROV
Physiographic Province as per the CMECS Geoform component.
Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of geoform class units; CMECS FGDC 2012
See definitions of Geoform class units; CMECS FGDC 2012
CMECS FGDC 2012
G_ORIGIN
Primary process by which the geoform was formed as per the Coastal and Marine Ecological Classification Standard, FGDC 2012
Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of geoform origin units; CMECS FGDC 2012
See definitions of geoform origin units; CMECS FGDC 2012
CMECS FGDC 2012
GEOFORM
Geoform - Individual geomorphological and physical features which provide a context for CMECS biotic an substrate information at a variety of spatial scales.
Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of Geoform units; CMECS FGDC 2012
See definitions of Geoform units; CMECS FGDC 2012
CMECS FGDC 2012
GEOFORM_TYPE
More specific variant of geoform.
Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of geoform type units; CMECS FGDC 2012
See definitions of geoform type units; CMECS FGDC 2012
CMECS FGDC 2012
Description
Descriptive information on geoform units
Dewberry, Inc./NOAA Office for Coastal Management
Free text further describing geoform units or other spatial contect information
NOAA Office for Coastal Management
mailing and physical
2234 South Hobson Avenue
Charleston
SC
29405-2413
843-740-1202
coastal.info@noaa.gov
Downloadable Data
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.
ESRI Arc Export format
Coastal Change Analysis Program: Maine SAV data set
https://coast.noaa.gov/benthic/data/northeast/maine.htm
None
20160211
NOAA Office for Coastal Management
mailing and physical
2234 South Hobson Avenue
Charleston
SC
29405-2413
843-740-1202
coastal.info@noaa.gov
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
PK aKH\P P / CMECS Benthic Cover/me97-substrate_Metadata.xml
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM)
Maine Department of Marine Resources
2015
Coastal Maine Submerged Aquatic Vegetation Data 1993-1997 Substrate
1
Map
Charleston, SC
NOAA's Ocean Service, Office for Coastal Management (OCM)
ftp://ftp.coast.noaa.gov/pub/benthic/Benthic_Cover_Data/ME_coast.zip
https://coast.noaa.gov/digitalcoast/publications/cmecs
http://www.cmecscatalog.org/
https://coast.noaa.gov/digitalcoast/
https://coast.noaa.gov/
Maine's eelgrass (SAV) meadows form an important aquatic habitat for the state. These meadows provide shelter for juvenile fish, and invertebrates. In certain locations they also help stabilize unconsolidated sediments and shorelines. Maine's Department of Marine Resources has mapped the SAV habitat for the entire coast using the Coastal Change Analysis Protocol. This mapping was accomplished from aerial photography acquired between 1993 and 1997. The unified coastal SAV data set is a composite of these multiple year data. The benthic data is classified according to the System for Classification of Habitats in Estuarine and Marine Environments (SCHEME). This system is fully described in "Development of a System for Classification of Habitats in Estuarine and Marine Environments (SCHEME) for Florida, Report to U.S. EPA - Gulf of Mexico Program, Florida Fish and Wildlife Conservation Commission, Florida Marine Research Institute. Review Draft 12/04/02."
The state of Maine is mapping and monitoring SAV beds to assist in locating sensitive areas for protection in the event of an oil spill. The SAV maps also will form a baseline to determine trends in this system.
1993
1997
ground condition
As needed
-70.8867
-66.9743
45.1121
43.0552
None
Environmental Monitoring
SAV
Eelgrass
Benthic
Habitat
Seagrass
Spill
Aquatic
Subtidal
OCM Benthic Habitat Mapping
None
CMECS
Coastal and Marine Ecological Classification Standard
Substrate Component
ISO 19115 Topic Category
environment
None
Coastal Maine
Casco Bay
Penobscot Bay
Frenchman Bay
Englishman Bay
None
None
NOAA Office for Coastal Management
mailing and physical
2234 South Hobson Avenue
Charleston
SC
29405-2413
843-740-1202
coastal.info@noaa.gov
https://coast.noaa.gov/data/Images/Collections/BenthicCover_thumbnail.jpg
Sample of benthic cover data
JPEG
Thematic accuracy was checked using GPS controlled navigation to representative areas of the coastline. The vector polygon data was loaded into a field PC and displayed in ArcView software. A tracking software allowed the analyst to travel to specific points in the data with precision and to check the type of habitat in the field. Sample sites were selected based on their location and distribution along the coast. No empirical accuracy statistics were generated.
Following interpretation and digitization, a Arc format polygon coverage was produced using the BUILD commands. An editing process was also conducted to ensure proper polygon labeling and closure.
All SAV habitat interpretable from aerial imagery was mapped. No gaps exist in the geographic distribution of the data.
Horizontal accuracy meets national map accuracy standards. This was one of the most important factors in the initial field visit.
Vertical accuracy was not tested.
James Sewall Inc.
1993
Conventional color metric aerial photography
1
map
Old Town, ME
James Sewall Inc.
Aerial photography acquired according to C-CAP protocol. Coastal Change Analysis Program (C-CAP): Guidance for Regional Implementation. NMFS Technical Report 123.
12000
color film diapositives
1993
1997
Ground Condition
Unknown
The aerial photography was used to identify and delineate SAV habitat. In addition, the photos form the backdrop for certain field operations
Aerial photography acquisition Conventional color (Kodak Aerochrome 2448) film was acquired over the Maine coast at a nominal scale of 1:12,000. The coast was flown in an incremental fashion in 1993, 1994, 1995, 1996, and 1997. The film was flown according to the environmental parameters recommended in the C-CAP protocol. The mission specifications included 60% endlap and 30% sidelap for adjacent lines. A 153mm color corrected lens and Wild RC10 camera were used to collect the imagery.Process Date Range is 1993-1997
1997
Seth Barker
Maine Department of Marine Resources
mailing and physical
Fisheries Research Lab
West Boothbay Harbor
Maine
04575
USA
(207) 633-9500
Mon-Fri 8am-5pm Eastern Time
Photo-Interpretation: The duplicated film diapositives were interpreted monoscopically on a large-format light table. SAV habitat was annotated on acetate overlays attached to the film. The habitat was assigned to 1 of four density classes based on percent ground coverage by actual eelgrass. The photography was interpreted by a skilled analyst who is very familiar with the local environment. GPS controlled field work was used to develop signatures suitable form mapping.Process Date Range is 1993-1997
1997
Seth Barker
Maine Department of Marine Resources
mailing and physical
Fisheries Research Lab
West Boothbay Harbor
Maine
04575
USA
(207) 633-9500
Mon-Fri 8am-5pm Eastern Time
Data Vectorization: At the conclusion of the interpretation process, the diapositives were with overlays attached were placed on the light table below mylar USGS 7.5 minute quads. The photos were manually fitted to the USGS map and the habitat polygons were transferred to the quad mylars. Then the annotated mylar was scanned and an automated vectorization software was used to capture the linework as ESRI vectors. These vectors were manually edited and a polygon coverage was built using ArcInfo software. The benthic data is classified according to the System for Classification of Habitats in Estuarine and Marine Environments (SCHEME). This system is fully described in "Development of a System for Classification of Habitats in Estuarine and Marine Environments (SCHEME) for Florida, Report to U.S. EPA - Gulf of Mexico Program, Florida Fish and Wildlife Conservation Commission, Florida Marine Research Institute. Review Draft 12/04/02."Process Date Range is 1993-1997
1997
Seth Barker
Maine Department of Marine Resources
mailing and physical
Fisheries Research Lab
West Boothbay Harbor
Maine
04575
USA
(207) 633-9500
Mon-Fri 8am-5pm Eastern Time
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.
2015
Vector
GT-polygon composed of chains
6242
Universal Transverse Mercator
19
0.999600
-69.000000
0.000000
500000.000000
0.000000
coordinate pair
0.0000001
0.0000001
Meters
North American Datum of 1983
GRS 80
6378137.0000000
298.26
Substrate
Shallow benthic habitats CMECS 2012 substrate component polygons
NOAA Office for Coastal Management
OBJECTID
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
SHAPE
Feature geometry.
Esri
Coordinates defining the features.
CMECS_CODE
CMECS substrate unit code.
Coastal and Marine Ecological Classification Standard, FGDC 2012
Alphanumeric code for CMECS units
S_ORIGIN
Substrate Origin - Dominance (percent cover) of either the geologic, biogenic (but no longer living), or anthropogenic origin of the upper layer of substrate
Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of substrate origin units; CMECS FGDC 2012
See definitions of substrate origin units; CMECS FGDC 2012
CMECS FGDC 2012
S_CLASS
Substrate Class - Composition and particle size of the dominant substrate material in the surface sediments.
Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of substrate class units; CMECS FGDC 2012
See definitions of substrate class units; CMECS FGDC 2012
CMECS FGDC 2012
S_SUBCLASS
Substrate Subclass - Composition and particle size of the dominant substrate material in the surface sediments.
Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of substrate subclass units; CMECS FGDC 2012
See definitions of substrate subclass units; CMECS FGDC 2012
CMECS FGDC 2012
S_GROUP
Substrate Group - Determined by Folk (1954) mixes for Geologic Sediments and by taxa for the Biogenic Substrates
Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of substrate group units; CMECS FGDC 2012
See definitions of substrate group units; CMECS FGDC 2012
CMECS FGDC 2012
S_SUBGROUP
Substrate Subgroup - Determined by Folk (1954) mixes for Geologic Sediments and by taxa for the Biogenic Substrates
Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of substrate subgroup units; CMECS FGDC 2012
See definitions of substrate subgroup units; CMECS FGDC 2012
CMECS FGDC 2012
Shape_Length
Length of line features in meters
Esri
Distance
Shape_Area
Polygon area in square meters
Esri
Area
Description
Descriptive information on substrate units
Maine Dept. of Marine Resources/NOAA Office for Coastal Management
Free text further describing substrate units
NOAA Office for Coastal Management
mailing and physical
2234 South Hobson Avenue
Charleston
SC
29405-2413
843-740-1202
coastal.info@noaa.gov
Downloadable Data
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.
ESRI Arc Export format
Coastal Change Analysis Program: Maine SAV data set
https://coast.noaa.gov/benthic/data/northeast/maine.htm
None
20160211
NOAA Office for Coastal Management
mailing and physical
2234 South Hobson Avenue
Charleston
SC
29405-2413
843-740-1202
coastal.info@noaa.gov
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
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