Filters: Tags: NDVI (X) > Types: ArcGIS REST Map Service (X)

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ForWarn Mean Summer National Difference Vegetation Index 2009-2013 The capacity of ecosystems to provide services such as carbon storage, clean water, and forest products is determined not only by variations in ecosystem properties across landscapes, but also by ecosystem dynamics over time. ForWarn is a system developed by the U.S. Forest Service to monitor vegetation change using satellite imagery for the continental United States. It provides near real-time change maps that are updated every eight days, and summaries of these data also provide long-term change maps from 2000 to the present. Based on the detection of change in vegetation productivity, the ForWarn system monitors the effects of disturbances such as wildfires, insects, diseases, drought, and other effects of weather,... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Academics & scientific researchers, AppLCC, Appalachian, Conservation NGOs, Data, All tags... Data.gov Appalachian Landscape Conservation Cooperative, Datasets/Database, Federal resource managers, ForWarn, ForWarn, Hunters & anglers, Interested public, LCC Network Science Catalog, NDVI, NEMAC, National Difference Vegetation Index, Policy makers & regulators, Private land owners, Regional & county planners, State agencies, Tribes, biota, completed, Fewer tags Near-real-time cheatgrass percent cover in the northern Great Basin, USA--2015 This dataset provides an estimate of 2015 cheatgrass percent cover in the northern Great Basin at 250 meter spatial resolution. The dataset was generated by integrating eMODIS NDVI satellite data with independent variables that influence cheatgrass germination and growth into a regression-tree model. Individual pixel values range from 0 to 100 with an overall mean value of 9.85 and a standard deviation of 12.78. A mask covers areas not classified as shrub/scrub or grass/herbaceous by the 2001 National Land Cover Database. The mask also covers areas higher than 2000 meters in elevation because cheatgrass is unlikely to exist at more than 2% cover above this threshold. Cheatgrass is an invasive grass that has invaded... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Bromus tectorum, Cheatgrass, MODIS, NDVI, Northwest CASC, All tags... Plants, Wildlife and Plants, annual grass, northern Great Basin, satellite data, Fewer tags US Forests and Issues Affecting Them This map project began as a source of support content for a new GIS career video that highlights the activities of Chris Ferner of the Colorado State Forest Service. Her story and forestry GIS activities can be viewed at the Esri EdCommunity's video web site. You can also explore a number of other career stories at the same site. This map includes a mix of national and regional data focused in part on Colorado. Categories: Data; Types: ArcGIS REST Map Service, Map Service; Tags: Colorado, Disease Risk, Fire Danger Outlooks, Hazards, Insect Risk, All tags... Land Cover, NDVI, forests, Fewer tags