48255 2003_era_AS_Tutuila_landcover Data Set Published / External 47841 C-CAP Project Completed 2010-02-11 This data set consists of land derived from high resolution imagery and was analyzed according to the Coastal Change Analysis Program (C-CAP) protocol to determine land cover. This data set utilized 7 partial Quickbird multispectral scenes and were analyzed to detect C-CAP land cover features on Tutuila, American Samoa. To create a baseline inventory of land cover features which can be utilized by state and local resource managers. 11482 Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > LAND SURFACE > LAND USE/LAND COVER Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > LAND SURFACE > LAND USE/LAND COVER > LAND USE/LAND COVER CLASSIFICATION Theme ISO 19115 Topic Category imageryBaseMapsEarthCover Spatial Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > AMERICAN SAMOA Instrument Global Change Master Directory (GCMD) Instrument Keywords CAMERAS Platform Global Change Master Directory (GCMD) Platform Keywords Airplane > Airplane Platform Global Change Master Directory (GCMD) Platform Keywords WORLDVIEW-2 > DigitalGlobe WORLDVIEW-2 Platform Global Change Master Directory (GCMD) Platform Keywords WORLDVIEW-3 > DigitalGlobe WORLDVIEW-3 Theme Land Cover Theme Land Cover Analysis Theme Remotely Sensed Imagery/Photos Spatial Coastal Zone Spatial Tutuila Office for Coastal Management Charleston SC Data Set 5 years Image (digital) Users must assume responsibility to determine the usability of these data. 48972 Layer_1 Published / External Completed Tutuila, American Samoa delineated by 8 Quickbird Scenes collected December 15, 2003. | Description Source: unknown Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script. 1 Value VARCHAR No No Active Landcover Classification as determined by NOAA Coastal Change Analysis Program (C-CAP) | Description Source: NOAA Office for Coastal Management High-Resolution Land Cover Project 1 Unclassified: This class contains data due to cloud conditions or data voids. | 2 Impervious Surfaces: Anthropogenic features such as buildings, parking lots and roads developed from asphalt, concrete or other constructed surfaces which do not allow infiltration from precipitation. | 5 Open Spaces Developed: Includes areas with a mixture of some constructed materials, but mostly vegetation in the form of lawn grasses. Impervious surfaces account for less than 20 percent of total cover. These areas most commonly include large-lot single-family housing units, parks, golf courses, and vegetation planted in developed settings for recreation, erosion control, or aesthetic purposes. | 6 Cultivated Land: Includes herbaceous (cropland) and woody (e.g., orchards, nurseries, and vineyards) cultivated lands. | 7 Pasture/Hay: Characterized by grasses, legumes or grass-legumes mixtures planted for livestock grazing or the production of sees or hay crops. | 8 Grassland: Dominated by naturally occurring grasses and non-grasses (forbs) that are not fertilized, cut, tilled, or planted regularly. | 9 Deciduous Forest: Includes areas dominated by single stemmed, woody vegetation un-branched 0.6 to 1 meter (2 to 3 feet) above the ground and having a height greater than 5 meters (20 feet). | 10 Evergreen Forest: Includes areas in which more than 67 percent of the trees remain green throughout the year. Both coniferous and broad-leaved evergreens (greater than 5 meters) are included in this category. | 11 Mixed Forest: Contains all forested areas in which both evergreen and deciduous trees (greater than 5 meters) are growing and neither predominate. | 12 Scrub/Shrub: Areas dominated by woody vegetation less than 5 meters in height. This class includes true shrubs, young trees, and trees or shrubs that are small or stunted because of environmental conditions. | 13 Palustrine Forested Wetland: Includes all non-tidal wetlands dominated by woody vegetation greater than or equal to 5 meters in height, and all such wetlands that occur in tidal areas in which salinity due to ocean-derived salts is below 0.5 parts per thousand (ppt). | 14 Palustrine Scrub/Shrub Wetland: Includes all non-tidal wetlands dominated by woody vegetation less than or equal to 5 meters in height, and all such wetlands that occur in tidal areas in which salinity due to ocean-derived salts is below 0.5 ppt. | 15 Palustrine Emergent Wetland: Includes all non-tidal wetlands dominated by trees, shrubs, persistent emergents, emergent mosses, or lichens, and all such wetlands that occur in tidal areas in which salinity due to ocean- derived salts is below 0.5 ppt. | 16 Estuarine Forest Wetland: Includes all tidal wetlands dominated by woody vegetation greater than or equal to 5 meters in height, and all such wetlands that occur in tidal areas in which salinity due to ocean-derived salts is above 0.5 parts per thousand (ppt). | 17 Estuarine Scrub/Shrub Wetland: Includes all tidal wetlands dominated by woody vegetation less than 5 meters in height, and all such wetlands that occur in tidal areas in which salinity due to ocean-derived salts is above 0.5 ppt. | 18 Estuarine Emergent: Characterized by erect, rooted, herbaceous hydrophytes (excluding mosses and lichens) that are present for most of the growing season in most years. Perennial plants usually dominate these wetlands. All water regimes are included except those that are sub-tidal and irregularly exposed. | 19 Unconsolidated Shore: Characterized by substrates lacking vegetation except for pioneering plants that become established during brief periods when growing conditions are favorable. Erosion and deposition by waves and currents produce a number of landforms, such as beaches, bars, and flats, all of which are included in this class. | 20 Bare Land: Composed of bare soil, rock, sand, silt, gravel, or other earthen material with little or no vegetation. | 21 Water: Includes all areas of open water with less than 30 percent cove Data Steward 2010-02-11 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 2010-02-11 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 2010-02-11 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 2010-02-11 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 Acquisition date of the Quickbird Scene -170.848953 -170.543508 -14.227526 -14.376104 Discrete 2003-12-15 Yes 3 Point No Row 6829 Column 13717 Vertical 1 Unclassified None 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. https://coast.noaa.gov/dataviewer/#/imagery/search/where:ID=404 Customized Download Create custom data files by choosing area, map projection, file format, etc. https://coast.noaa.gov/digitalcoast Online Resource https://coast.noaa.gov/htdata/raster1/landcover/bulkdownload/hires/ Online Resource 2016-05-23 Date that the source FGDC record was last modified. 2017-11-14 Converted from FGDC Content Standard for Digital Geospatial Metadata (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. 2018-03-13 Partial upload to move data access links to Distribution Info. Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.2.2.1350 None 12 meters CE90 There was no terrain correction in the geo-referencing procedure. Data does not exist for all classes. There are no pixels representing class 3(Developed, Medium Intensity), 4 (Developed, Low Intensity), 9(Deciduous Forest), 11 (Mixed Forest), 24 (Tundra), 25 (Perennial Ice/Snow), 26 (Dwarf Scrub - Alaska specific class), 27 (Sedge/Herbaceous), and 28 (Moss - Alaska specific). Developed classes have been altered to exclude the percentage breakdown of impervious surfaces as the breakdown is not appropriate for high resolution mapping (Developed High Intensity (2), Developed Medium Intensity (3), and Developed Low Intensity (4) are reduced to Impervious (Class 2)). 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. C-CAP Land Cover, Territory of American Samoa, Tutuila Sanborn. www.sanborn.com. 2010-02-11 Discrete 2003-12-15 https://coast.noaa.gov/digitalcoast NOAA OCM | Source Geospatial Form: remote-sensing image | Type of Source Media: DVD/CD-ROM 1 This dataset was created by Sanborn (www.sanborn.com). This version of the classification is the High Resolution Land Cover (2004-era) for the Island of Tutuila, American Samoa. This section outlines the classification procedure for the Island of Tutuila, American Samoa High Resolution C-CAP. Quickbird imagery used in producing this land cover product was also utilized in producing an associated impervious surfaces layer for the island. The mapping approach utilized an object oriented approach. A calibration visit was conducted and training data was collected for classification. Non impervious features were mapped using a 0.5 acre minimum mapping unit (MMU). Pre-processing steps: The Quickbird mosaic utilized for this project was provided from GeoEye as an orthorectifed, georeferenced product and was consistent with the quoted 1:12000 spatial accuracy. Field-Collected Data: Training data was collected in the field between August 15th and 23th, 2009. Land cover observations were recorded by analysts. The referenced dataset went through a QA/QC procedure to ensure it met accuracy standards. Classification: Segmentation - Image segmentation was completed at multiple scales using the multispectral (2.4 m) imagery in order to group like spectral and textural objects within the imagery. For consistency, the associated impervious data set was incorporated into the segmentation layer as a boundary delimiter. Segments can share boundaries of an impervious surface, but can never overlap an impervious surface. Automated Classification, image segments are classified using a decision tree classifier in See5 software and an iterative nearest neighbor classifier in Definiens software. Nearest neighbor training data is collected through analyst interpretation or ancillary data sets and used to calibrate the classification algorithm. Automated Classification Refinement - Models are built to refine or reclassify land cover areas by utilizing the wealth of attribute information linked to each segment within Definiens. Classification Edits - As with any automated or semi-automated land cover classification there are often inconsistencies in the land cover map. The final step before map finalization was to remove inaccuracies through manual segment labeling as interpreted by an analyst. Map Finalization - Sanborn used independent reviewer's comments to further refine the land cover map. Attributes for this product are as follows: 0 Background 1 Unclassified 2 Impervious 3 4 5 Developed, Open Space 6 Cultivated Crops 7 Pasture/Hay 8 Grassland/Herbaceous 9 Deciduous Forest 10 Evergreen Forest 11 Mixed Forest 12 Scrub/Shrub 13 Palustrine Forested Wetland 14 Palustrine Scrub/Shrub Wetland 15 Palustrine Emergent Wetland 16 Estuarine Forested Wetland 17 Estuarine Scrub/Shrub Wetland 18 Estuarine Emergent Wetland 19 Unconsolidated Shore 20 Bare Land 21 Open Water 22 Palustrine Acquatic Bed 2010-02-11T00:00:00 2 Metadata imported 2010-02-12T00:00:00 48972 Entity gov.noaa.nmfs.inport:48255 Anne Ball 2017-11-14T14:38:25 SysAdmin InPortAdmin 2023-07-03T17:07:51 2018-03-13 Office for Coastal Management OCM 1002 Public No No 2018-03-13 1 Year 2019-03-13