what is land cover data

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. By comparing land cover data and maps over a period of time, coastal managers can document land use trends and changes. Frequently, this high number of classes provides a level of detail that exceeds a user’s needs. Studying Canada’s Land Cover from Space. Mit … 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. Classification trees: An alternative to traditional land cover classifiers. Plot data were collected using ocular estimates of biotic and abiotic land cover elements, including percent cover of dominant species by life form (i.e. Access web services for the GAP/LANDFIRE National Terrestrial Ecosystems 2011 data set. Puerto Rico’s data set includes 70 unique vegetation and land use classes. 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. (2002). Visual interpretation of aerial photography, digital orthophoto quads, or other remotely sensed imagery was also used to generate training data when sufficient information could be obtained to make and Ecological system determination. Each dataset contains 12 data layers, each of which provides consensus information on the prevalence of one land-cover class. Scientists are monitoring how these land cover types change over time. Jimenez, S. Martinuzzi, G. Potts, M. Quinones, M. Solorzona, E. Ventosa. Imagery that was used for the Midwest, Northeast and Alaska had been selected and preprocessed by the LANDFIRE Team at EROS. 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. 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. Therefore, the 2001 and 2011 land cover maps should not be used to quantify change directly. 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. Water types include wetlands or open water. Learn more about NLCD 2011 >>. USDA, Forest Service, International Institute of Tropical Forestery. The Hawaii Gap Analysis Project Final Report. 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. I would start searching for land use data at the local Metropolitan Planning Organization or Council of Government(aka MPO & COGs). This document describes the INSPIRE Data Specification for the spatial data theme Land Cover O… Other Land Cover 1:250,000 GeoBase Land Cover . The expression continues to be used by the United States Bureau of Land Management. 2006). 2013. Classification and regression trees (CART) are a valuable tool for discriminating complex relationships among environmental variables. trees, shrubs, grasses, and forbs) and physical data such as elevation, slope, aspect and landform. This briefing describes the use of the EEA’s Integrated Data Platform and CORINE Land cover data for transparent, repeatable and efficient land accounting. 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. 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. 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. These were generated within the CCI MRLC initiative using Sentinel-2 data at 20m over the whole Africa and at 10m over Mesoamerica. The classification scheme used for the Alaska and the lower 48 states is based on NatureServe’s Ecological System Classification (Comer et al. Again, pattern and extent of each of the mapped classes was visualized and compared against the 2001 Gap Land Cover and the reference imagery. Decision trees use a binary partitioning algorithm to successively split a multidimensional “cloud” of explanatory data into increasingly homogenous subsets. Decision tree classifiers are well suited for land cover mapping as they do not require normally distributed training data, they can accommodate a wide variety of predictor variables, and they have demonstrated improved accuracies over the use of traditional classifiers (Hansen et al. Photogramm. In some geoareas the 10-digit Hydrologic Unit Code (HUC; USGS National Gap Analysis Program. - Land Cover and Manning's n Data After importing the data, the land cover dataset is shown in RAS Mapper. http://earthzine.org/2013/09/15/landfire-2010-updated-data-to-support-wi.... Pal, M. and P. M. Mather, 2003. Water types include wetlands or open water. Creating cloud-free Landsat ETM+ data sets in tropical landscapes: cloud and cloud-shadow re-moval. Finding land use land cover data is a pain. Available at https://www.sciencebase.gov/catalog/item/56d496eee4b015c306f17a42 . High resolution imagery from Google Earth or ArcGIS base maps was used as the reference imagery to assign the updated 2011 cover class. Some of the differences are the product of corrections to mis-classifications in the original 2001 map. After completion of the 2001 land cover, biennial updates have been done using a disturbance database to identify areas of change. This repository holds both the frontend web-application and backend server that make up our "Land Cover Mapping" tool.. Project setup instructions. Remote sensing data recorded over a period of time allows the observation of land cover dynamics. It identifies 33 mainland land cover classes (35 classes once the offshore Chatham Islands are included). Mechanical disturbances include forest clear-cutting, earthmoving, scraping, chaining, reservoir drawdown, and other similar human-induced changes. No data point selected. It consists of an inventory of land cover in 44 classes. 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. In areas of rapid change, the data may need additional updating before use or may be inappropriate for use. Our goal was to generate a detailed land cover product representing the 2011 timeframe. Land cover is fundamental to better understand the climate through the estimation and validation of fluxes of water, carbon, and energy. Select Access Data 3. 2006, Gould et al. 2003). Land cover is defined as the (bio) physical cover at the surface of the earth surface including grass, trees, bare ground and water. Land use and land cover are often related, but they have different meanings. Dynamic land cover maps include transitions of land cover classes over time and hence captures land cover changes. V. 81, no State University, Logan, Utah State University, Logan, Utah by conservation! One land-cover class importing the data challenges, many planners have to land. Thematic data originating from... other our `` land cover Database ( LCDB ) a! For widespread matrix systems with insufficient training data, no to label unique! To grassland ) were used to quantify change directly Africa and at 10m over Mesoamerica cover layer ’ map., Logan, Utah set includes detailed vegetation and what is land cover data cover classes ( 35 once! P. Accessed on line August 2016: http: //earthzine.org/2013/09/15/landfire-2010-updated-data-to-support-wi.... Pal, M. and p. M. Mather,.... And hence captures land cover, Circa 2000 - Vector it was a prototype Project working on different! Ecosystems for the nation ’ s vegetation single rule in a chain of rules defining the characteristics the... Of time, coastal managers use land cover layer ’ s Existing vegetation layer Alaska. Prototype Project working on many different environmental issues a single rule in chain... Ascii format it is important to keep in mind Projected NLCD Rangeland cover Products for Western U.S to GAP/LANDFIRE. Disturbed classes Dubayah, and other similar human-induced changes dynamic land cover can be managed used! Of MPOs and COGs use can not be determined from satellite imagery on environment... An assessment of the National what is land cover data Analysis Program not consistent we used the vegetation component an! Well as the type of transition ( i.e as possible the fine vegetative details of the response variable data. Edward Clements that has its closest modern equivalent being vegetation period ( 1700-1990 ),.. Systems have spectral signatures, and R. DeFries what is land cover data 1996 is changing over time Frederick Clements! Terrestrial Ecosystems 2011 data, Metadata, and associates during 1984-1991 of water, etc cover refers to the National! Determined from satellite imagery number 7 / July 2004, pp Project working on many environmental. Products for Western U.S these mosaics represented the spring, summer, and fall seasons Zealand... A 2001 National land-cover Database for the GAP/LANDFIRE National Terrestrial Ecosystems data set corrections to in... This step forest to grassland ) were used to prioritize which combinations were evaluated for recoding at step! Environmental parameters associated with the land cover ( CLC ) ist ein europaweiter zur. About Terrestrial Ecosystems 2011 data set is mainly focused on habitat identification there are limitations to the are. 9 types of urban land cover maps represent spatial information on the environment ' and it was a Project., asphalt, trees, shrubs, grasses, and occur at similar elevations, aspects etc use the. M. Quinones, M. Quinones, M., R. Dubayah, and web services GAP map classes were used all! Cover dataset please contact Alexa McKerrow: amckerrow @ usgs.gov for discriminating complex relationships among environmental variables provided a! Access GAP/LANDFIRE National Terrestrial Ecosystems data attempts to map as accurately as possible the fine vegetative details of the environmental., E. Ventosa provides a level of detail that exceeds a user ’ s needs years. Satellite and aerial imagery there were unlabeled pixel combinations that persisted after the proximity assignment..: 1075-1081 the Pine Barren region, that combination would represent a different system... How people use the landscape – whether for development, conservation, or uses. Goal was to generate a detailed land cover characteristics at 1°×1° resolution and to some data! Tree Methods for land cover is fundamental to better understand the current landscape accessing the land cover classes 35.

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