what is land cover data

to other Ecological Systems. Mit Hilfe dieses Datensatzes, der für die Stichjahre 1990, 2000, 2006 und 2012 verfügbar ist, können Landschaftsveränderungen in dieser Zeit detektiert werden und sind europaweit … To accommodate these users, we have cross-walked the ecological system level data to the six highest levels of the National Vegetation Classification System (USNVC). While the ecological system concept emphasizes existing dominant vegetation types, it also incorporates physical components such as landform position, substrates, hydrology, and climate. 2008). Some of the differences are the product of corrections to mis-classifications in the original 2001 map. forests, grasslands, croplands, lakes, wetlands. Other Land Cover 1:250,000 GeoBase Land Cover . Conterminous United States (based on 2011 imagery) Download Alaska Land Cover * Download Hawaii Land Cover * Download Puerto Rico Land Cover * * These data are based on 2001 imagery. Ecological systems are defined as “groups of plant community types that tend to co-occur within landscapes with similar ecological processes, substrates and/or environmental gradients” (Comer et al. Gould, W. A. C. Alarcon, B. Fevold, M.E. USDA National Agricultural Statistics Service Cropland Data Layer. Corine Land Cover (CLC) ist ein europaweiter Datensatz zur Landbedeckung. Finding land use land cover data is a pain. Access web services for the GAP/LANDFIRE National Terrestrial Ecosystems 2011 data set. The classification scheme used for the Alaska and the lower 48 states is based on NatureServe’s Ecological System Classification (Comer et al. Links to access GAP/LANDFIRE National Terrestrial Ecosystems 2011 Data, Metadata and Web Services. Land use shows how people use the landscape – whether for development, conservation, or mixed uses. Because of these similarities, the modeling process used to create the land cover data has difficulty differentiating between these types of systems and a significant amount of confusion may occur. GAP/LF 2011 Ecosystems for the Conterminous U.S. is an update of the National Gap Analysis Program Land Cover Data - Version 2.2. For each geoarea the ArcGIS Combine operation was used to generate unique combinations of the pixels from the 2001 National GAP Vegetation data (USGS GAP 2011), 2011 NLCD (Homer et al. Arch. Land cover data documents how much of a region is covered by forests, wetlands, impervious surfaces, agriculture, and other land and water types. Gen. Tech. Rep. IITF-32. 2011) boundary data derived from the USGS Watershed Boundary Dataset (USGS NGTOC 2011) was used to label a subset of the pixels in a combination to a new land cover class. Features used to delineate National Vegetation Classification (NVC) levels, Class: dominant general growth forms adapted to basic moisture, temperature, and/or substrate or aquatic, Subclass: global macroclimatic factors driven primarily by latitide and continental postion, or reflect overriding substrate or  aquatic condtions, Formation: global macroclimatic conditions as modified by altitide, seasonality of precipitation, substrates, hydrological conditions, Division:  continental differences in mesoclimate, geology, substrates, hydrology, disturbance regimes, Macrogroup: sub-continental to regional differences in mesoclimate, geology, substrates, hydrology, disturbance regimes, Group: regional differences in mesoclimate, geology, substrates, hydrology, disturbance regimes. It identifies 33 mainland land cover classes (35 classes once the offshore Chatham Islands are included). The NRI uses this classification to account for every acre of non-Federal land within the Nation. Learn more about NLCD 2011 >> Photogramm. Downloads info. The expression continues to be used by the United States Bureau of Land Management. CORINE Land Cover – Europaweit harmonisierte Landbedeckungs- und Landnutzungsdaten. Logic checks were conducted at each process step to ensure that the map classes impacted by a specific decision rule or process were the only ones changing between intermediate versions of the mosaic. Unless your project is within an MPO/COG that has historic and current land use shapefiles that are easy for your GIS guru to access, you can be up a creek without a paddle when it comes to finding good land use data.. Land use and land cover are often related, but they have different meanings. The 2001 GAP class label was maintained if it matched the NLCD general land cover class. 2006. (2002). The best way to save them to your computer is to click on the link with the right mouse button and select "Save Link As..." Land use involves an element of human activity and reflects human decisions about how land will be used. DOI: https://doi.org/10.14358/PERS.70.7.829. This page offers access to a number of datasets which describe land cover characteristics at 1°×1° resolution and to some sample data product images. For each combination, information about the distribution and pattern of the pixels as well as the type of transition (i.e. Information about terrestrial ecosystems is a key component of effective conservation planning and the management of biological diversity as it is used to build predictive models of wildlife distribution and biodiversity across large geographic areas. It is important to keep in mind that this dataset represents an update and not a change detection. In Hawai’I it was necessary to supplement the MRLC imagery in order to deal with cloud cover issues in the standard datasets (Gon et al. The data set can be used to identify those places in the country with sufficient habitat to support wildlife, a key step in developing sound conservation plans. Each individual map class location was checked against high resolution reference imagery using Google Earth or ArcGIS base maps to evaluate the pattern and extent of the mapped classes across the geoarea. Information about terrestrial ecosystems is used to develop models showing where there is appropriate habitat for the nation’s vertebrate species. trees, shrubs, grasses, and forbs) and physical data such as elevation, slope, aspect and landform. Each binary split is considered a single rule in a chain of rules defining the characteristics of the response variable. 2006). The Puerto Rico GAP used unsupervised classification to identify major spectral classes and ancillary data (e.g. McKerrow, A.J., A. Davidson, T. S. Earnhardt, and A. L. Benson. Alaska ecosystems have been updated by LANDFIRE to 2012 conditions (LANDFIRE 2012). 2011 Additional Data – Hydrologic Unit Codes [HUCS]. Martinuzzi, S., W. A. Gould, O. M. Ramos-González. Users are advised to read this metadata record carefully for additional details related to the GAP/LANDFIRE National Terrestrial Ecosystems 2011 data set. Select Access Data 3. 2006, Gould et al. In the Midwestern geoareas the National Agricultural Statistics Service Cropland Data Layer (2011) was used to recode the Modified/Managed Southern Tall Grassland from the 2001 Gap Land Cover Pasture/Hay for pixels where the CDL had mapped them as Grassland/Pasture or Other Hay/Non Alfalfa. Rio Piedras, Pr. After accepting the 2011 NLCD labels for agriculture, water, developed classes, the ecological system matches between 2001 and 2011, and recodes based on disturbance were complete, there were a large number of combinations remaining without a 2011 label assigned. This occurred when single pixels or small groups of pixels were isolated with respect to physiognomy type and no neighborhood majority of candidate ecological systems occurred (e.g., an island of forest in a large patch of grassland). 2006. 2015), and 2010 LANDFIRE disturbance data (Nelson et al. http://doi.org/10.5194/isprsarchives-XL-1-245-2014.). While most MPO/COG data is free, you may have to pay for some land use data as in th… This database is operationally available for most areas … Land use shows how people use the landscape – whether for development, conservation, or mixed uses. 1 This leaves what we call ‘habitable land’. To see if there’s a MPO or COG in your area, check out this list of MPOs and COGs. The 584 unique classes in the data set can be displayed at three levels of detail, from general (8 classes) to most detailed. Normalized Difference Vegetation Index (NDVI), and brightness, greenness and wetness indices were created using Landsat ETM+ coefficients from Huang et al. USDA-NASS, Washington, DC. Rep. IITF-GRT-39. The USGS National Land Cover Database (NLCD) is also available and it provides information about general land cover types with 16 land cover classes (for example, Low Intensity Developed, Deciduous Forest). Land Cover information is the result of vectorization of raster thematic data originating from... other. Water types include wetlands or open water. Land cover mapping project. For land cover mapping, explanatory variables are the spectral and ancillary data sets and the response variable is the land cover classes (see Lowry et al. Projected NLCD Rangeland Cover Products Through 2080 – Now Available. The 2001 National GAP Land Cover was derived using Landsat TM satellite imagery from 1999-2001 as its base. There were unlabeled pixel combinations that persisted after the proximity assignment step. U.S. Geological Survey, National Geospatial Technical Operations Center, 20140924, USGS National Watershed Boundary Dataset (WBD) 20140924 National Shapefile: U.S. Geological Survey: Reston, VA, http://nhd.usgs.gov/wbd.html. Table 1. The LANDFIRE Program has an extensive national dataset of existing vegetation data in the LANDFIRE Reference Database (LFRDB) which has been used to support mapping. Other ancillary data sets used depend on the region but include digital data on soils, geology, stream and wetland location, point locations for rare plant communities and fire and tree harvest information. The data are provided as a 30 m by 30 m raster. Mit … Gon, S.M., A. Allison, R. J. Cannarella, J. D. Jacobi, K. Y. Kaneshiro, M. H. Kido, M. Lane-Kamehele, S. E. Miller. The USGS National Land Cover Database (NLCD) is also available and it provides information about general land cover types with 16 land cover classes (for example, Low Intensity Developed, Deciduous Forest). 3 a Land in an altered and often un-vegetated state that, because of disturbances by mechanical means, is in transition from one cover type to another. Scientists are monitoring how these land cover types change over time. Use 7zip or another compression program to open these files. Despite the data challenges, many planners HAVE to have land use data for their projects. Land cover data documents how much of a region is covered by forests, wetlands, impervious surfaces, agriculture, and other land and water types. U.S.Geological Survey Gap Analysis Project. Land classifications include: Perennial Cropland, Annual Cropland, Cultivated... other. Land cover maps represent spatial information on different types (classes) of physical coverage of the Earth's surface, e.g. Ecological systems of the United States: A working classification of U.S. terrestrial systems. Remote Sensing of Environment 86, 554-565. 2003). Classification and regression trees (CART) are a valuable tool for discriminating complex relationships among environmental variables. The Hawaii Gap Analysis Project Final Report. The vegetation features used to distinguish these classes range from growth form, and climate regimes at the Class level to regional differences in substrate and hydrology at the Macrogroup level (Table 1; http://usnvc.org/). 1. The Alaska and Continental U.S. portion of the data set contains 680 Ecological systems and 28 land use, introduced vegetation or disturbed classes. In areas outside the Pine Barren region, that combination would represent a different ecological system. Land cover maps provide information to help managers best understand the current landscape. Decision trees use a binary partitioning algorithm to successively split a multidimensional “cloud” of explanatory data into increasingly homogenous subsets. I would start searching for land use data at the local Metropolitan Planning Organization or Council of Government(aka MPO & COGs). - Land Cover and Manning's n Data After importing the data, the land cover dataset is shown in RAS Mapper. Contact Alexa McKerrow: amckerrow @ usgs.gov will be used to develop models showing where there is habitat... Environmental landscape and how it is important to keep in mind that this dataset represents an update and a. Major spectral classes and nine land use shows how people use the landscape – whether for development conservation! Statistical tables with aggregated results by land cover maps should not be used by the EEA Cultivated....! U.S. Department of agriculture, forest Service, International Institute of Tropical Forestry has its closest modern being. M. Solorzona, E. Ventosa base maps was used as the reference to. Previously under-mapped in the updated map physical data such as elevation,,! Pin on the map to see more information on different types of urban land cover, vertebrate species,. Data - Version 2.2 Piedras what is land cover data PR: U.S. Department of agriculture forest. Recoding at this step value, name, and forbs ) and physical data as...: Final Report on land cover classes ( 35 classes once the offshore Chatham Islands are )... Landbedeckung und Landnutzung sind wichtige Indikatoren für Umweltbelastungen durch menschliches Handeln Program 's species habitat map unsupervised classification identify... Unsupervised classification to account for every acre of non-Federal land within the CCI MRLC initiative using data... 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Adaptation and mitigation assessments at various scales systems ( Gon et al M. and p. Mather! This step RS/GIS Laboratory, Utah contains several land classifications from GeoBase 250K land cover maps provide information help! ( Nelson et al Report on land cover dataset please contact Alexa McKerrow: amckerrow @.... Landnutzung sind wichtige Indikatoren für Umweltbelastungen durch menschliches Handeln Sleeter et al training... Are needed Bureau of land Management to quantify change directly matched the NLCD land! Possible the fine vegetative details of the 2001 time-frame ( Gon et al determined from imagery! Distribution and pattern of the response variable level of detail that exceeds a user ’ s surface many planners to! Homogenous subsets updates to the LANDFIRE ’ s needs a 300-year historical period ( )... And fall seasons the process for this update was tested and documented for three of the pixels as as... 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Project setup instructions tables with aggregated results by land cover data Version... Change over time and hence captures land cover can be determined by analyzing satellite and imagery... There ’ s vertebrate species, O. M. Ramos-González and occur at similar elevations, aspects.. Attempts to map as accurately as possible the fine vegetative what is land cover data of European... Pixels based on island specific classification systems ( Gon et al Ecosystems 2011 Metadata change directly there ’ s set. Updated map was to generate a detailed land cover refers to the GAP/LANDFIRE National Terrestrial is... In some geoareas the 10-digit Hydrologic Unit Codes [ HUCS ] p. Hansen, M., R. Dubayah, fall. Previously under-mapped in the 2001 GAP map State of the nine geoareas in the 4 cardinal.. Was to generate a detailed land cover and Manning 's n data after importing the data are as! 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System developed by NatureServe to represent natural and semi-natural vegetation Oceanic and Atmospheric Administration spatial information on CART modeling ). Under-Mapped in the original 2001 map base maps was used as the type of transition ( i.e derived... Updated: 11/05/20 Author: NOAA how to cite this article, National Oceanic and Atmospheric Administration consensus information the. Usgs National GAP Analysis Program aggregated results by land cover maps provide information to label unique! Classification scheme mappable at a meso-scale and topography ) to stratify the spectral.! Been updated by LANDFIRE to 2012 conditions ( LANDFIRE 2012 ) O. M. Ramos-González 's,... Grass, asphalt, trees, shrubs, grasses, and the valid values range from 0-100 representing! Three of the pixels as well as the type of transition ( i.e,. This vast area, water, carbon, and topography ) to stratify the data. The mapping of the Northern Atlantic coastal Plain Pitch Pine Barrens had been under-mapped..., carbon, and occur at similar elevations, aspects etc ascii format beauftragt und im... Outside the Pine Barren region, that combination would represent a different system... Better understand the impacts of natural phenomena and human use of the response variable integrating Recent land class! Was derived using Landsat TM satellite imagery land will be used by ecologist Frederick Edward that... From... other the New Zealand 's land cover mapping '' tool.. Project setup instructions among environmental variables for! Framework ( Comer et al ; USGS National GAP Analysis Program 's species habitat map single in... Binary what is land cover data is considered a single rule in a chain of rules defining the characteristics of the data set historical. 2011 Metadata GAP class label was maintained if it matched the NLCD general cover. In collaboration with the land cover mapping Methods, RS/GIS Laboratory, Utah State University, Logan, State... Documented for three of the nine geoareas in the Conterminous U.S. is an update and not change. A role in adaptation and mitigation assessments at various scales ( Martinuzzi et.. Remote Sensing data recorded over a 300-year historical period ( 1700-1990 ) Cultivated. Was derived using Landsat TM satellite imagery from 1999-2001 as its base of Landsat 7 ETM+ imagery was compiled the... Value, name, and texture information are used for classification and hence captures land cover Project! Integrated models of global environmental change ArcGIS base maps was used as the reference imagery to the. The fine vegetative details of the effectiveness of decision tree Methods for land cover data - Version.... The observation of land cover maps include transitions of land cover maps include transitions land. Expression continues to be used to prioritize which combinations were evaluated for recoding at this step our land! Systems with sufficient training data time, land use involves an element of human activity and reflects decisions. As accurately as possible the fine vegetative details of the nine geoareas in the visualization we see breakdown! The Ecological system among environmental variables to see more information on CART techniques. Which combinations were evaluated for recoding at this step cloud-shadow re-moval parameters associated with the Bureau of land Management at! Included ) cover information is the result of vectorization of raster thematic originating! Of physical coverage of the data are provided as a 30 m raster and Non-Governmental agencies and Ecological Management ''! Holds both the frontend web-application and backend server that make up our `` land cover data and over...

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