One of these is an inventory of land cover in 44 classes, and presented as a cartographic product, at a scale of 1:100 000. Updates have been produced in 2000 and 2006, and the latest 2012 update is under production. Land Use and Land Cover The data is presented as a percentage share of the total grid-cell extent for a 5' latitude by 5' longitude grid-cell. For combinations where the NLCD 2011 cover class was not consistent we used the vegetation and LANDFIRE disturbance information to label that unique combination. Users are advised to read this metadata record carefully for additional details related to the GAP/LANDFIRE National Terrestrial Ecosystems 2011 data set. The nine geoareas were then mosaicked in ArcGIS and a class by class check was conducted to look for errors introduced by the mosaicking process. In areas outside the Pine Barren region, that combination would represent a different ecological system. The data set uses a 30 meter pixel cell and in most areas a minimum mapping unit of 0.4 ha (1 acre) this means that small patches of vegetation can be missed in the modeling process. Gon, S.M., A. Allison, R. J. Cannarella, J. D. Jacobi, K. Y. Kaneshiro, M. H. Kido, M. Lane-Kamehele, S. E. Miller. Land cover is the observed biophysical cover on the Earth's surface including trees, shrubs, grasses, soils, exposed rocks and water bodies, as well as anthropogenic elements such as plantations, crops and built environments. USDA National Agricultural Statistics Service Cropland Data Layer. For all areas of the county except Hawaii and Puerto Rico, native vegetation areas are classified to the Ecological System types developed by NatureServe. Some Ecological Systems have spectral signatures, and occur at similar elevations, aspects etc. Land use involves an element of human activity and reflects human decisions about how land will be used. 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. Land-Cover data is a crucial reference dataset that informs a wide variety of activities ranging from environmental planning and protection, economic development, compliance monitoring, enforcement, and strategic decision making. Mit … 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. 2004). Water types include wetlands or open water. Based on the interpretation of satellite imagery, CLC provides national scale maps of landcover and landcover change on a six year basis for thirty nine countries in Europe. Access web services for the GAP/LANDFIRE National Terrestrial Ecosystems 2011 data set. Coastal managers use land cover data and maps to better understand the impacts of natural phenomena and human use of the landscape. U.S.Geological Survey Gap Analysis Project. Volume 1: Land cover, vertebrate species distribution, and land stewardship. The findings on land use come from the NRI data category "Land Cover/Use," which comprises mutually exclusive categories such as cropland, rangeland, forest land, other rural land, developed land, and water areas. This technique was most often used for rare systems with insufficient training data and where additional ancillary data was available to identify image features. Comer, P., D. Faber-Langendoen, R. Evans, S. Gawler, C. Josse, G. Kittel, S. Menard, S. Pyne, M. Reid, K. Schulz, K. Snowand, J. Teague, 2003. Again, pattern and extent of each of the mapped classes was visualized and compared against the 2001 Gap Land Cover and the reference imagery. A variety of other dataset were used in all or some of the regions to help with the land cover classification process. 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). The NRI uses this classification to account for every acre of non-Federal land within the Nation. trees, shrubs, grasses, and forbs) and physical data such as elevation, slope, aspect and landform. Remote sensing data recorded over a period of time allows the observation of land cover dynamics. The Historical Land Cover and Land Use data set consists of two files, and was developed to provide the global change community with historical land use estimates. Normalized Difference Vegetation Index (NDVI), and brightness, greenness and wetness indices were created using Landsat ETM+ coefficients from Huang et al. The GAP/LANDFIRE National Terrestrial Ecosystems data represents a detailed vegetation and land cover classification for the Conterminous U.S., Alaska, Hawaii, and Puerto Rico. Those combinations were then evaluated against high resolution imagery to determine those needing to be updated either because of a change in the land conditions or a refinement of the initial classification. Land cover can be determined by analyzing satellite and aerial imagery. GAP/LF 2011 Ecosystems for the Conterminous U.S. is an update of the National Gap Analysis Program Land Cover Data - Version 2.2. 2006. Differences between the 2001 and 2011 GAP maps do not always represent on-the-ground changes in vegetation communities. Corine means 'coordination of information on the environment' and it was a prototype project working on many different environmental issues. Photogrammetric Engineering & Remote Sensing, Number 7 / July 2004, pp. 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. These geoareas are aggregations of the 66 Multi-Resolution Land Characteristics Consortium (MLRC mapping zones that have been used by NLCD, GAP and LANDFIRE as mapping zones in their 2001 national mapping efforts (Homer et al. McKerrow, A.J., A. Davidson, T. S. Earnhardt, and A. L. Benson. 1996, Pal and Mather 2003). Available at https://nassgeodata.gmu.edu/CropScape/. Land cover data documents how much of a region is covered by forests, wetlands, impervious surfaces, agriculture, and other land and water types. Point and landscape photos in the 4 cardinal directions. Rep. IITF-32. Visit LP DAAC 2. 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). 12 p. Accessed On line August 2016: http://www.fs.fed.us/global/iitf/pubs/iitf-gtr32.pdf. Ecological systems of the United States: A working classification of U.S. terrestrial systems. LUCAS — Land Use and Cover Area frame Survey — aims to gather harmonised data on land use/cover through direct observations by land surveyors on the ground. The GAP/LANDFIRE National Terrestrial Ecosystems data set includes detailed vegetation and land cover patterns for the continental United States. Record Published: 2014-12-11; Natural Resources. 2006, Gould et al. 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. Water types include wetlands or open water. Micro-data: land cover, land use and environmental parameters associated with the individual points surveyed. This database is operationally available for most areas … The process for this update was tested and documented for three of the nine geoareas in the conterminous U.S. (McKerrow et al. Having images of vegetation during these three different times of the year is very helpful for correctly classifying vegetation types that look the same during one season but different in another. The different types of land cover can be managed or used quite differently. The New Zealand Land Cover Database (LCDB) is a multi-temporal, thematic classification of New Zealand's land cover. For example, some areas correctly mapped as shrub in the NLCD layer (based on the NLCD definition) are best mapped as the Northern Rocky Mountain Ponderosa Pine Woodland and Savanna ecological system in the GAP map; therefore the 2001 Woodland and Savanna label would be retained. CORINE Land Cover – Europaweit harmonisierte Landbedeckungs- und Landnutzungsdaten. Classification trees: An alternative to traditional land cover classifiers. For rarer, patch systems and systems in the Southeast regional project where topographic relief was not sufficient and training data were limited a combination of CART modeling and decision rules were used for mapping the existing vegetation. Some of the differences are the product of corrections to mis-classifications in the original 2001 map. High resolution imagery from Google Earth or ArcGIS base maps was used as the reference imagery to assign the updated 2011 cover class. Alaska ecosystems have been updated by LANDFIRE to 2012 conditions (LANDFIRE 2012). The GAP/LANDFIRE National Terrestrial Ecosystems data attempts to map as accurately as possible the fine vegetative details of the nation’s vegetation. If the review identified artifacts or errors, the analyst revised the decision rules and the process was repeated until a satisfactory classification was completed. Finally, the concepts of the Ecological Systems used to define the map legend are inherently variable with a range of physiognomic and phenological conditions possible in a single system. Rio Piedras, Pr. The Corine databases and several of its programmes have been taken over by the EEA. Data Set Information: Contains training and testing data for classifying a high resolution aerial image into 9 types of urban land cover. Land accounts fit the bill, describing how land resource stocks change over time. O… Canada’s land surface is covered with different vegetation types, built environments, water, desert, rock, ice and snow formations. Geographic Names Information System (GNIS), Mapping, Remote Sensing, and Geospatial Data, GAP/LANDFIRE National Terrestrial Ecosystems 2011 Data, Metadata, http://www.asprs.org/a/publications/pers/2015journals/PERS_May_2015/HTML/index.html#346/z, Photogrammetric Engineering & Remote Sensing, http://www.fs.fed.us/global/iitf/pubs/iitf-gtr32.pdf, http://doi.org/10.5194/isprsarchives-XL-1-245-2014. 5, p. 345-354. http://www.asprs.org/a/publications/pers/2015journals/PERS_May_2015/HTML/index.html#346/z, Homer, C., C. Huang, L. Yang, B. Wylie, and M. Coan, 2004. Testing against historical data is an important step for validating integrated models of global environmental change. File Type: Color Grayscale; 1.0 degrees: 360 x 180 download: 0.5 degrees: 720 x 360 download: 0.25 degrees: 1440 x 720 download: 0.1 degrees: 3600 x 1800 download: CSV for Excel older than 2007 download; Get Data. To see if there’s a MPO or COG in your area, check out this list of MPOs and COGs. It supplies spatial data on the state of the European environmental landscape and how it is changing over time. USDA, Forest Service, International Institute of Tropical Forestery. The 2001 GAP class label was maintained if it matched the NLCD general land cover class. 2003). 2008). By nature of their patchy distributions and frequently small extents wetlands, riparian habitats and rare habitat types can be the most frequently missed types. Land use shows how people use the landscape – whether for development, conservation, or mixed uses. For each combination, information about the distribution and pattern of the pixels as well as the type of transition (i.e. The Alaska and Continental U.S. portion of the data set contains 680 Ecological systems and 28 land use, introduced vegetation or disturbed classes. Int. In these situations, we recoded the pixels based on their proximity to labelled pixels in the 2001 GAP map. Regional distribution of land under permanent meadows and pastures and comparison with corresponding land … The Puerto Rico Gap Analysis Project. 1 This leaves what we call ‘habitable land’. Maps can help managers assess urban growth, model water quality issues, predict and assess impacts from floods and storm surges, track wetland losses and potential impacts from sea level rise, prioritize areas for conservation efforts, and compare land cover changes with effects in the environment or to connections in socioeconomic changes such as increasing population. In response to this need, NatureServe developed the Terrestrial Ecological Systems Classification framework (Comer et al. The Hawaii Gap Project conducted supervised classification of the Landsat data and object based classification of high resolution imagery and for some classes (Gon et al. The GAP/LANDFIRE National Terrestrial Ecosystems data set is mainly focused on habitat identification. However, there are limitations to the data that users should keep in mind. In some geoareas the 10-digit Hydrologic Unit Code (HUC; USGS National Gap Analysis Program. In the visualization we see the breakdown of global land area today. Download Land Cover Data. Classification and regression trees (CART) are a valuable tool for discriminating complex relationships among environmental variables. 10% of the world is covered by glaciers, and a further 19% is barren land – deserts, dry salt flats, beaches, sand dunes, and exposed rocks. 165. p. Hansen, M., R. Dubayah, and R. DeFries, 1996. These were generated within the CCI MRLC initiative using Sentinel-2 data at 20m over the whole Africa and at 10m over Mesoamerica. With this information, managers can evaluate past management decisions as well as gain insight into the possible effects of their current decisions before they are implemented. 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. By comparing land cover data and maps over a period of time, coastal managers can document land use trends and changes. Learn more about NLCD 2011 >>. The GAP/LANDFIRE Terrestrial Ecosystem dataset is based on a range of imagery dates for the different geographies covered. Statistical tables with aggregated results by land cover and land use at geographical level. Landbedeckung und Landnutzung sind wichtige Indikatoren für Umweltbelastungen durch menschliches Handeln. Previous land cover mapping projects made clear the need for a nationally consistent classification scheme mappable at a meso-scale. The Hawaii data set contains 28 natural vegetation classes and nine land use, introduced vegetation or disturbed classes (Gon et al. Rep. IITF-GRT-39. The GAP/LANDFIRE National Terrestrial Ecosystems data set is mainly focused on habitat identification. Photogramm. Gould, W. A. C. Alarcon, B. Fevold, M.E. - Land Cover and Manning's n Data After importing the data, the land cover dataset is shown in RAS Mapper. The datasets were assembled by Inez Fung, Elaine Matthews, and associates during 1984-1991. 2 No data point selected. Table 1. 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. Download data for the GAP/LANDFIRE National Terrestrial Ecosystems 2011 dataset by State, Territory, or Download by Landscape Conservation Cooperative. The different types of land cover can be managed or used quite differently. In Puerto Rico a cloud free mosaic of Landsat 7 ETM+ imagery was compiled for the project (Martinuzzi et al. 2011. 487 pp. Much of the imagery was acquired from the USGS National Center for Earth Resources Observation and Science (EROS) through the Multi-Resolution Land Characteristics Consortium (MRLC). While most MPO/COG data is free, you may have to pay for some land use data as in th… For access to previous versions of the land cover dataset please contact Alexa McKerrow: amckerrow@usgs.gov. Permalink. Land cover mapping project. These maps and data can be used to identify those places in the country with sufficient habitat to support wildlife, a key step in developing sound conservation plans. forests, grasslands, croplands, lakes, wetlands. Data sources. How to cite this article, National Oceanic and Atmospheric Administration. After completion of the 2001 land cover, biennial updates have been done using a disturbance database to identify areas of change. Creating cloud-free Landsat ETM+ data sets in tropical landscapes: cloud and cloud-shadow re-moval. http://doi.org/10.5194/isprsarchives-XL-1-245-2014.). The data series are used in a … 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..." 2003), while Puerto Rico and Hawaii’s map legend are based on island specific classification systems (Gon et al. Information about terrestrial ecosystems is used to develop models showing where there is appropriate habitat for the nation’s vertebrate species. Puerto Rico’s data set includes 70 unique vegetation and land use classes. Río Piedras, PR: U.S. Department of Agriculture, Forest Service, International Institute of Tropical Forestry. 2003). Southwest Regional Gap Analysis Project: Final Report on Land Cover Mapping Methods, RS/GIS Laboratory, Utah State University, Logan, Utah. Learn more about NLCD 2011 >> Currently viewing: 2011. Half of all habitable land is used for agriculture. Other Land Cover 1:250,000 GeoBase Land Cover . Jimenez, S. Martinuzzi, G. Potts, M. Quinones, M. Solorzona, E. Ventosa. Arch. Published crop-specific data layer [Online]. An assessment of the effectiveness of decision tree methods for land cover classification. The Puerto Rico GAP used unsupervised classification to identify major spectral classes and ancillary data (e.g. Multi-scale spectral, size, shape, and texture information are used for classification. Mit CORINE Land Cover (CLC) steht ein staatenübergreifendes Konzept und System für die Gewinnung und Auswertung dieser Informationen und deren Änderung zur Verfügung. Data from USGS Land Cover Trends Project; Sleeter et al. Plays a role in adaptation and mitigation assessments at various scales. CART modeling techniques were used to map the majority of the Ecological systems in the Southwest and Northwest regional projects, as well as for LANDFIRE. Note that the data files are in ascii format. For example, for pixels mapped as Atlantic Coastal Plain Dry and Dry-Mesic Oak Forest in the 2001 GAP map that were mapped as deciduous forest in the NLCD 2011 map, the original 2001 ecological system call was left unchanged. 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. Land use cannot be determined from satellite imagery. GAP/LANDFIRE National Terrestrial Ecosystems data set provides information on the distribution of native vegetation types, modified and introduced vegetation, developed areas, and agricultural areas of the United States. 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. Homer, C.G., Dewitz, J.A., Yang, L., Jin, S., Danielson, P., Xian, G., Coulston, J., Herold, N.D., Wickham, J.D., and Megown, K., 2015,Completion of the 2011 National Land Cover Database for the conterminous United States-Representing a decade of land cover change information. GAP field samples were collected by traversing navigable roads in a mapping zone and opportunistically selecting plots that met criteria of appropriate size (1-hectare minimum) and composition (stand homogeneity). 2014. 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. Imagery that was used for the Midwest, Northeast and Alaska had been selected and preprocessed by the LANDFIRE Team at EROS. 2013). Despite the data challenges, many planners HAVE to have land use data for their projects. Land cover maps provide information to help managers best understand the current landscape. Projected data include three time periods (2020s, 2050s, and 2080s) and two climate scenarios (Representative Concentration Pathways [RCP] 4.5 and … Land use and land cover are often related, but they have different meanings. Showing where there is appropriate habitat for the continental United States Bureau of land cover, Circa 2000 -.... 1700-1990 ) Piedras, PR: U.S. Department of agriculture, forest Service, International Institute of Forestery. Cog in your area, check out this list of MPOs and COGs,. At the surface of the pixels as well as the reference imagery to assign the updated cover. 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