gov.noaa.nmfs.inport:58107 eng UTF8 dataset Office for Coastal Management resourceProvider NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact 2024-02-29T00:00:00 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) Salt Marsh Habitats, New Hampshire, 2013 2019-10-28 publication NOAA/NMFS/EDM 58107 https://www.fisheries.noaa.gov/inport/item/58107 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information https://coast.noaa.gov/dataviewer/#/landcover/search/where:ID=8690 WWW:LINK-1.0-http--link Data Access Viewer Online Resource download https://coast.noaa.gov/digitalcoast/data/ccaphighres WWW:LINK-1.0-http--link Citation URL Online Resource download https://coast.noaa.gov/htdata/raster1/landcover/bulkdownload/marshhabitat/ WWW:LINK-1.0-http--link Citation URL Online Resource download imageDigital Recommended Citation.***** Data accessed at *****. This data set consists of salt marsh habitats for the state of New Hampshire derived from high resolution (1ft) imagery collected on August 24, 2013. This data set relied on 4 Band multispectral aerial orthoimagery acquired by the Piscataqua Region Estuaries Partnership and LiDAR data collected through the LiDAR for the NorthEast project (2011). To gauge the health and resilience of New Hampshire's coastal salt marshes and provide baseline data for detecting change over time. completed NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information custodian 5 years EARTH SCIENCE > LAND SURFACE > LAND USE/LAND COVER EARTH SCIENCE > LAND SURFACE > LAND USE/LAND COVER > LAND USE/LAND COVER CLASSIFICATION theme Global Change Master Directory (GCMD) Science Keywords 17.0 CAMERAS instrument Global Change Master Directory (GCMD) Instrument Keywords 17.2 Airplane > Airplane platform Global Change Master Directory (GCMD) Platform Keywords 17.2 Ocean > North America > United States of America > New Hampshire place Global Change Master Directory (GCMD) Location Keywords Biota Remotely Sensed Imagery/Photos Salt Marsh Wetlands theme Coastal Zone NH New Hampshire place DOC/NOAA/NOS/OCM > Office of Coastal Management, National Ocean Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian C-CAP project InPort otherRestrictions Cite As: Office for Coastal Management, [Date of Access]: Salt Marsh Habitats, New Hampshire, 2013 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/58107. 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. otherRestrictions Access Constraints: None otherRestrictions Use Constraints: Data set is not for use in 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 misrepresentations, caused by any inaccuracies in the data, or as a result of the data to be used on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. otherRestrictions Distribution Liability: Users must assume responsibility to determine the usability of these data. unclassified NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 58107 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocm/dmp/pdf/58107.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference eng; US imageryBaseMapsEarthCover Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.2.2.1350 -71 -70.6 42.85 43.25 | Currentness: Acquisition date of the NAIP imagery 2013-08-24 Attributes for this product are as follows: 0 Background, 1 2 3 4 5 Invasive Phragmites australis, 6 7 S.patens / D.spicata, 8 Mud flat /Bare, 9 10 Open water, 11 Pannes and Pools, 12 13 Salicornia spp., 14 Salt marsh terrestrial border, 15 Short form S. alterniflora, 16 High Marsh, S. alterniflora / Lower salt meadow mixture, 17 18 19 Low Marsh, 20 21 22 Brackish Meadow, 23 High Marsh, J. gerardii, 24 Wrack, 25 Recently Flooded Upland Border NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information distributor https://coast.noaa.gov/dataviewer/#/landcover/search/where:ID=8690 WWW:LINK-1.0-http--link Data Access Viewer Online Resource download https://coast.noaa.gov/digitalcoast/data/ccaphighres WWW:LINK-1.0-http--link https://coast.noaa.gov/digitalcoast/data/ccaphighres Online Resource download https://coast.noaa.gov/htdata/raster1/landcover/bulkdownload/marshhabitat/ WWW:LINK-1.0-http--link https://coast.noaa.gov/htdata/raster1/landcover/bulkdownload/marshhabitat/ Online Resource download dataset Accuracy According to accuracy assessment performed by the Great Bay NERR , the overall accuracy for the classification is % and Kappa. There were 353 total points distributed across the state. The accuracy of each class is as follows (Producer's, User's accuracies): Invasive Phragmites australis (%, %) High Marsh, S.patens / D.spicata (%, %) Mud flat /Bare (%, %) Open Water (%, %) Pannes and Pools (%, %) Salicornia (%, %) Salt marsh terrestrial border (%, %) S. alterniflora (%, %) High Marsh, S. alterniflora / Lower salt meadow mixture (%, %) Low marsh (%, %) Brackish (%, %) High Marsh, J. gerardii (%, %) Wrack (%, %) Recently Flooded Upland Border(%, %) Overall accuracy (%) Conceptual Consistency Tests for logical consistency indicate that all row and column positions in the selected latitude/longitude window contain data. Conversion and integration with vector files indicates that all positions are consistent with earth coordinates covering the same area. Attribute files are logically consistent. This data set was created by NOAA Office of Coastal Management (NOAA OCM) to include multiple vegetation communities that individually and collectively indicate aspects of marsh health. This section outlines the classification procedure for the New Hampshire Salt Marsh Habitats map. This product was developed through a partnership between Great Bay NERR and the NOAA OCM. The product was derived from high resolution 4 band digital imagery in combination with derivatives from LiDAR data. The mapping methodology employed an Object Based Image Analysis (image segmentation) approach. Data Preparation: The aerial imagery was supplied to NOAA OCM by Great Bay NERR. Orthoimagery during low tide on August 24, 2013 was pre-processed into spectral indices and band derivatives. LiDAR data collected through the LiDAR for the NorthEast project (2011) were processed into elevation models, surface models and tidal layers. Field Data Collection: Field samples were collected prior to (July 2016) the mapping effort. Salt Marsh Extent Classification: Image segmentation was performed in Trimble's eCognition Developer software package. The resulting image objects or segments were classified using modeling routines which leveraged existing wetland datasets acquired from the state of New Hampshire. Boundaries were refined using spectral and elevation information. The final extent was used to focus the supervised habitat classification process. Salt Marsh Habitat Classification: A new set of image objects were derived within the salt marsh extent boundary. The resulting image objects classified into habitat classes using a Random Forest classifier. Logical rule sets and contextual modeling were used to improve, and refine the habitat classification. Anomalies in the classification that were not addressed through the automated processes were corrected through manual editing. Review and Map Finalization: Once various stages of the salt marsh extent and habitat classification processing were completed, the resulting maps were provided to the Great Bay NERR and other local experts for comments. The majority of the resulting feedback was incorporated to improve the final habitat dataset. 2019-11-01T00:00:00