69287 Data Set Draft 37225 Benthic Project Completed 2023-01-24 2023 The Gulf of Maine is a region rich in history, natural resources, and ocean uses. This area is also under growing pressure from increased offshore wind development and other activities. Effective siting of new infrastructure and changes in ocean use require accurate data and collaboration between multiple stakeholders and resource management organizations. In response to long-expressed needs in the region, OCM worked with the states of Maine, New Hampshire, and Massachusetts to develop a regional geomorphology data set which would form the framework for collaborative planning and assessment. A contract was awarded to a private sector company to process NOAA's BlueTopo bathymetric products to generate CMECS geoforms for the area. The project used semi-automated methods so that features identified throughout the region would be consistently mapped. Following completion of the semi-automated product, additional interpretation was conducted to add and refine features of interest that were not detected through the semi-automated process. This interpretation process was guided by input from regional marine geology and mapping experts. Efforts to expand and update this product are planned. Original contact information: Contact Org: NOAA Office for Coastal Management Phone: 843-740-1202 Email: coastal.info@noaa.gov The data was to support coordinated ocean planning among the three state partnership agencies, between state and federal organizations and the public at large. The interpreted layers were intended to complement the geoform vector polygon and raster products. The Interpreted Layers consists of 6 feature types that were delineated based on expert interpretation of BlueTopo products and reference information. The layers consist of Paleodeltas, Estuarine Sediment Shoals, Deltas, Cobble-Boulder Complexes, Basins, and Moraines. The spatial domain of these data extend from the landward limit of BlueTopo tiles seaward to the 24 nautical mile Contiguous Zone boundary. Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > GLACIAL LANDFORMS > MORAINES Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > COASTAL PROCESSES > SHOALS Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL LANDFORMS > DELTAS Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL PROCESSES Theme ISO 19115 Topic Category environment Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MAINE Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MASSACHUSETTS Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW HAMPSHIRE Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MAINE Theme Benthic Theme CMECS Theme Coastal and Marine Ecological Classification Standard Theme Environmental Monitoring Spatial Contiguous Zone 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. 69325 Geoform Review / Revise Completed Interpreted CMECS geoforms from the Gulf of Maine Seascape 1 project. Companion data set to the CMECS Geoform polygon feature layer and raster layers in the Seascape 1 file geodatabase. 1 FID Unknown No No Active Internal feature number. Descriptive source: ESRI 2 Shape Unknown No No Active Feature geometry. Descriptive source: ESRI 3 CMECS_Code Unknown No No Active Alpha-numeric code for CMECS Geoform units. Description Source: Coastal and Marine Ecological Classification Standard, FGDC 2012 4 Tect_Sett Unknown No No Active Tectonic Setting - Continental scale geomorphological setting of the study area. | Description Source: Coastal and Marine Ecological Classification Standard, FGDC 2012 5 Physio_Sett Unknown No No Active Physiographic Province as per the CMECS Geoform component. | Description Source: Coastal and Marine Ecological Classification Standard, FGDC 2012 6 GOM_Cat3 Unknown No No Active CMECS geoform unit based on visual expert interpretation of Seascape bathymetry products, ancillary data, and published references. 7 Feature_NA Unknown No No Active Place name for selected geomorphological features as provided by project partners or existing base maps. 8 Notes Unknown No No Active Descriptive information on geoform units | Description Source: Seascape project partners/NOAA Office for Coastal Management 9 Shape_Leng Unknown No No Active Perimeter values for each polygon. 10 Shape_Area Unknown No No Active Polygon area in square meters | Description Source: Esri Data Steward 2023-01-19 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 2023 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 2023 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 2023 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 -71.40527777778 -67.01666666667 45.0875 40.82611111111 Continuing 2019 Yes Yes 2165 Unclassified Data is available upon request None https://coast.noaa.gov/htdata/Benthic/Benthic_Cover_Data/CMECS/gom21.zip Bulk Download FTP download of data files. 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 Coastal and Marine Ecological Classification Standard (CMECS) Home Page Online Resource Information and resources on the CMECS standard and how to apply it 2023-01-24 Finkbeiner, Mark Date that the original InPort metadata record was produced. The accuracy of the interpreted geoforms in this data is a largely a function of the quality of the original Blue Topo source data and availability of reference data and publications. The accuracy of the final geoform vector polygons was qualitatively assessed by the project team and an advisory panel of marine geologists and GIS experts. A review of the data was conducted by visually comparing the polygons to the source bathymetry and reference data/reports. No quantitative accuracy was calculated. The positional accuracy of this data is that of the source BlueTopo source data tiles. The polygon delineation was accomplished primarily by identifying features at the 1:70K scale and then accomplishing the delineation at the 1:10K scale. Generally the minimum polygon size is the same as the 64 square meter (8x8 meter cells) in the source BlueTopo tiles. Polygon topology present. Every polygon has a label, there are no multiple labels within polygons, there are no contiguous polygons. BlueTopo Source Bathymetric Tiles Organization NOAA Office of Coast Survey Publisher 2009-01-01 Discrete 2009-06-27 12000 https://www.nauticalcharts.noaa.gov/data/bluetopo_specs.html# BlueTopo web page Descriptions of the BlueTopo products and Digital Elevation Models which were the primary source for the geoform feature mapping. 1 Manual Delineation - The six target CMECS classes that were delineated using manual interpretation methods were paleo deltas, estuarine sediment shoals, deltas, cobble-boulder complexes, basins, and moraines. A combination of published data, slope derived from the bathymetry using the ArcGIS Pro Spatial Analyst Surface Parameters tool with a break of 1 degree, and interpretation of the bathymetric (hillshade) data. In Uchupi and Bolmer, 2008, the authors provided bounding bathymetric contours for several basins in the project area (Scantum, Tillies, Stellwagen, Little Stellwagen, Platts, Murray and Wilkinson, Matinicus, Jordan, and Jeffreys). These basins were plotted using the NBS bathymetric contours and then were overlaid on the bathymetric grid and slope derivative and modified to better represent the current basins. A generally very conservative approach was taken to these delineations and the resultant features are only identified where the source bathymetry was of high quality. It is likely that the extent of these features may change as new bathymetry becomes available. 2 Quality Assurance - The interpreted features were reviewed by local marine geology experts and compared to reference studies to ensure accuracy. These were manually delineated and are available as a companion data set to this CMECS geoform product. The QA process is described in an addendum to the Gulf of Maine - Geoform Development report. 69325 Entity gov.noaa.nmfs.inport:69287 Mark Finkbeiner 2023-02-14T18:48:36 Mark Finkbeiner 2023-03-03T17:16:28 Office for Coastal Management OCM 1002 Never Published No 2018-04-11 1 Year 2019-04-11