The usgs land cover institute lci is a focal point for advancing the science, knowledge, and application of land use and land cover information. In order to assess tree cover on agricultural land, a previous global analysis of tree cover which used a modis 250 m resolution satellite remote sensing dataset from 2000 to. Earth satellite corporation earthsat has developed two products based on landsat data. The second repository contains a database of the geowiki users, their land cover contributions, and the pixel polygons with attribute data from the three global land cover maps. This database is accessed by the web portal to authenticate users, access the pixel polygons and. Center for sustainability and the global environment. These are then aggregated for each aezregion and updated to each base year using. Unlike previous versions, the data is directly constructed from publicly available geospatial maps circa 200001 at 5minute grid resolution.
Land use and land cover data base builds global land cover and land use databases for base years. Harmonisation, mosaicing and production of the global land cover 2000 database beta version steffen fritz, etienne bartholome, alan belward, andrew hartley, hansjurgen stibig, hugh eva, philippe mayaux, sergey bartalev, rasim latifovic, susanne kolmert, partha sarathi roy, shefali agrawal, wu bingfang, xu wenting, michael. Sentinel1s sar mission will support land cover classification and change detection mapping. The most commonly used include the matthews 1983, olson and watts 1982 and wilson and hendersonsellers 1985 global databases. A unique global landcover characteristics database developed by the u. Global land cover characterization glcc is a series of global land cover classification datasets that are based primarily on the unsupervised classification of 1km avhrr advanced very high resolution radiometer 10day ndvi normalized difference vegetation. Global land cover eu science hub european commission. Global and regional land cover characterization 5 1. It contains 33 mainland classes 35 including the offshore chatham islands. Thanks for contributing an answer to geographic information systems stack exchange. Funded primarily by nasa, glcf has been involved in numerous research projects encompassing the fields of remote sensing, geospatial ecology, and information systems.
Global land cover share glcshare food and agriculture. The datasets integrate multiple global remote sensingderived landcover products and provide consensus information on the prevalence of 12 landcover classes at 1km resolution. Using future landcover projections from the recently completed millennium ecosystem assessment, we found that 9501,800 of the worlds 8,750 species of land birds could be imperiled by climate change and land conversion by the year 2100. The historical urban land areas for the years 1975, 1990, 2000 and 2014 are acquired from the global human settlement layer ghsl dataset 56. Global projections of future urban land expansion under. This means in particular that the global land cover 2000 dataset is a main input dataset to define the boundaries between ecosystems such as forest, grassland, and cultivated systems. The glc2000 digital database, in its entirety, should be referenced as follows. Thematic areas land monitoring land cover, use and. In particular the gvm unit is coordinating and implementing the global land cover 2000 project glc 2000 in collaboration with a network of partners around the world the general objective is to provide for the year 2000 a harmonized land cover database over the whole globe. The classification has evolved from version to version but. Glcshare was created by the land and water division of fao in partnership with and based on contributions from various institutions by a combination of best available high resolution national, regional andor subnational land cover databases. Nasa earthdata is also an excellent source of global land use and cover.
Modis provides continuous global coverage every one to two days, and collects data from 36 spectral bands. Projected impacts of climate and landuse change on the. Land cover map glc2000 jrc unspider knowledge portal. Your choice for format should be tiff, then esri, then img. Development of a global land cover characteristics. Glc2000 database, european commision joint research centre, 2006.
Global land cover the jrc coordinated and implemented the global land cover 2000 project glc 2000 in collaboration with a network of partners around the world. Here, we present results from further improvement to land cover mapping and impact analysis of spatial resolution on area estimation for different land cover types. Usgs global land cover characteristics data base, version 2. The global land cover share glcshare is a global land cover database with spatial resolution of 30 arcseconds 1 sq. Global land cover 2000 products publications glc2000 legend the glc2000 product is available for download in the following formats. Here users can choose to interpolate their variable of choice into any resolution, including latitude x longitude grids or gaussian grids the latter are normally used by global climate models. Global land cover 250m european environment agency. Harmonisation, mosaicing and production of the global land. Geocover lc is a global landcover database derived from geocover ortho imagery.
The global land cover facility glcf is an operational research and development project housed in the department of geographical sciences, within the college or behavioral and social sciences, at the university of maryland. A multiresolution global land cover dataset through. This paneuropean classification does not represent a perfect reproduction of corine land cover in areas where clc2000 and glc2000. The igbp discover land cover dataset igbpdis, loveland et al. Then, change the time range criteria to narrow down your search. Estimates of vegetation phenology are provided twice annually from the two 12month focus periods, julyjune, and januarydecember, allowing for hemispheric differences in the growing seasons, and enabling. Both formats are compressed into zip files, which must be extracted to a new. It consists of an inventory of land cover in 44 classes. A new global land cover database for the year 2000 glc2000 has been produced by an international partnership of 30 research groups coordinated by the. We used the glc2000 global land cover database european commission 2003 to partition suitability changes to land with forest cover glc2000 global categories 19, land without forest cover, and agricultural land glc200 global categories 1018. Webgis free lulc data geographic information systems.
Land cover data description fao soils portal food and. At the global scale, there are a variety of reference data sets that can be used to support 30 m glc mapping, such as existing glc maps at coarser resolution, 30 m or higher resolution regional land cover data, global dem data srtm and aster dem, global 1. A comparative analysis of the global land cover 2000 and. Global land cover 2000 europe european environment agency. The land use data sets developed at sage have a native resolution of 0. Clc uses a minimum mapping unit mmu of 25 ha for areal phenomena and a minimum width of 100 m for linear phenomena. Updates have been produced in 2000 and 2006, and the latest 2012 update is under production. These data support the needs of the climate and global change. The general objective is to provide for the year 2000 a harmonised land cover database over the whole globe. Furthermore, the global land cover 2000 land cover database has been chosen as a core dataset for the millennium ecosystems assessment. It has specialized satellitederived data like permafrost and wetland types. Recent developments of 30 m global land characterization datasets e. Please contact navin ramankutty with any questions. The land cover dynamics product includes layers on the timing of vegetation growth, maturity, and senescence that mark the seasonal cycles.
Corine land cover copernicus land monitoring service. Land cover is a critical component of the earth system, infl uencing landatmosphere interactions, greenhouse gas fl uxes, ecosystem health, and availability of food, fi ber, and energy for human populations. Previous global land cover databases until recently, there were only a small number of global land cover databases being used in global environmental studies. The usgs and other agencies and organizations have produced land cover data to meet a wide variety of spatial needs. All continents in the global data base share the same map projection interrupted goode homolosine, have 1km nominal spatial resolution, and are based on 1km. The partners all used the hierarchical land cover classification system produced by fao and unep. A global land cover database primarily derived from 1992 to 1993 1km avhrr data. The datasets were assembled by inez fung, elaine matthews, and associates during 19841991. Global land cover 2000 products forest observations. Global land cover 2000 united states naval academy. Thanks to global land cover and satellite sensors like modis. Satellite derived land cover, available as at 1990, 2000 and 2006 in vector and raster formats. The global vegetation monitoring unit of the joint research center has produced a new global land cover classification for the year 2000 global land cover 2000. The data are available in two formats netcdf and arcinfo ascii at 5min and 0.
The lulc mapping program is designed so that standard topographic maps of a scale of 1. The land cover map of north and central america for the year 2000 glc 2000nca, prepared by nrcanccrs and usgseros data centre edc as a regional component of the global land cover 2000 project, is the subject of this paper. Geocover ortho is a database of orthorectified landsat tm scenes for the land masses of the world. Geocover lc a moderate resolution global landcover database. The exact quotation for each individual product global and regional, can be found together with the digital product, on the data download page. Gls, global land survey, selection of landsat images from years.
Asking for help, clarification, or responding to other answers. Satellites can be used to monitor how this land cover is being used and detect changes to the land over time. The usgs lci has been established to provide access to, and scientific and. The jrc coordinated and implemented the global land cover 2000. The postel service centre has produced the first global land cover map at 300 m resolution, that discriminates the land surfaces in 22 classes representatives of the continental ecosystems.
The global land cover characteristics database was developed on a continentbycontinent basis. Estimating historical changes in global land cover. A companion dataset associates each code with its countrysubunit. Land cover products from esas climate change initiative. The global land covershare glcshare is a global land cover database with spatial resolution of 30 arcseconds 1 sq. World land cover data geographic information systems. Geological survey, eros data center sioux falls, sd, 57198, usa received 30 april 2004. Geological survey has been available to users since mid1997. Global land cover dataset at 300m resolution from the meris sensor on the envisat satellite. The global vegetation monitoring unit carries out several activities related to land cover mapping and monitoring. Free gis data land cover and land use data gis resources.
What is the best free land cover and land use data set. For additional information about the integration approach and the evaluations of the datasets, please see the associated journal article. The corine land cover inventory was initiated in 1985 reference year 1990. Usgs eros archive land cover products global land cover. Land cover is the materials that cover the earths surface, such as vegetation and water. This data is available from nasa, usgs, and earthsat. The global land cover characteristics data base is being developed on a continentbycontinent basis. Open gis data services for research csc company site. Ifpri, 2002, based on a reinterpretation of the global land cover characteristics database glcc ver. Land conversion and climate change have already had significant impacts on biodiversity and associated ecosystem services. This data set gives the global distribution of countriespolitical subunits, reflecting the world scene in 1993. The jrc coordinated and implemented the global land cover 2000 project glc 2000 in collaboration with a network of partners around the world. A comparative analysis of the global land cover 2000 and modis land cover data sets chandra giria, zhiliang zhub, bradley reeda asaiceros data center, sioux falls, sd, 57198, usa bu.
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