Filters: Tags: Riparian zone (X) > partyWithName: U.S. Geological Survey (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (1) Types Citation (1) Downloadable (1) Map Service (1) OGC WFS Layer (1) OGC WMS Layer (1) Shapefile (1) Contacts Pamela L Nagler U.S. Geological Survey - ScienceBase Armando Barreto-Muñoz Kamel Didan Pamela Nagler More... Categories Data (1) Tag Types Theme (5) Place (4) Harvest Set (1) Tag Schemes None (5) USGS Thesaurus (4) Geographic Names Information System (GNIS) (4) Geographic Names Information System (1) ISO 19115 Topic Categories (3) ISO 19115 Topic Category (1) View Results as: JSON ATOM CSV

Remote sensing derived maps of tamarisk (2009) and beetle impacts (2013) along 412 km of the Colorado River in the Grand Canyon, Arizona These data are aerial image-derived, classification maps of tamarisk (Tamarisk spp.) in the riparian zone of the Colorado River from Glen Canyon Dam to Separation Canyon, a total river distance of 412 km. The classification maps are published in GIS vector format. Two maps are published: 1) a classification of tamarisk from a 0.2 m resolution multispectral image dataset acquired in May 2009 (Tamarisk Classification 2009), and 2) a classification of tamarisk impacted by the tamarisk beetle (Diorhabda carinulata) from a 0.2 m resolution multispectral image dataset acquired in May 2013 (Beetle Impact Classification 2013). Tamarisk presence in 2009 was classified using the Mahalanobis Distance method with a total of... Tags: Arizona, Change Detection, Classification maps, Colorado River, GIS vector format data, All tags... Glen Canyon, Glen Canyon Dam, Grand Canyon, NDVI, Normalized difference vegetation index, Remote Sensing, Riparian vegetation, Riparian zone, Separation Canyon, Tamarisk, Tamarisk Beetle, USGS Science Data Catalog (SDC), Fewer tags Colorado River Delta Project: Growing Season Normalized Difference Vegetation Index (NDVI) Difference Maps These normalized difference vegetation index (NDVI) raster data were compiled to develop time series data of the lower Colorado River (LCR) riparian corridor vegetation greenness and phenology since the year 2000. An objective of our study was to evaluate short and long-term effects of drought and biocontrol on LCR riparian and aquatic ecosystems south of Hoover Dam. These data represent spatially explicit scaled normalized difference vegetation index (NDVI*) difference maps between two decades (2000 to 2010 and 2011 to 2020) and two 5 year periods (2000 to 2005 and 2016 to 2020). NDVI* is an additional correction to the NDVI to account for the illumination conditions; it is a processing correction step to improve... Tags: Arizona, Colorado River, Landsat images, Mexico, NDVI, All tags... United States, Yuma, aquatic ecosystems, biota, ecosystem health, ecosystem monitoring, evapotranspiration, imageryBaseMapsEarthCover, lower Colorado River, monitoring, normalized difference vegetation index, remote sensing, riparian, riparian areas, riparian zone, southwestern United States, time series, time series datasets, trends and changes, water use, wetland ecosystems, Fewer tags Colorado River Delta Project: River reach (3-7) full time-series period statistics computed for Landsat 5, Landsat 7 and Landsat 8 data These full time-series period statistics data were compiled for monitoring riparian zone trends and changes in the lower Colorado as part of a study to document riparian ecosystem health and its water use. Our study evaluated the short and long-term effects on the river's vegetation of drought and hydrological processes in this dryland region. Because of the landscape changes, we explored remote sensing-based change analysis techniques and data to develop time series data of the Colorado River riparian corridor vegetation greenness, phenology, and water use since the year 2000. We divided the river into five Reaches (R3..R7) to separate between the different land covers, management conditions, and general geospatial... Tags: Arizona, Colorado River, ET, EVI2, Landsat images, All tags... Mexico, NDVI, United States, Yuma, aquatic ecosystems, biota, ecosystem health, ecosystem monitoring, enhanced vegetation index, evapotranspiration, imageryBaseMapsEarthCover, lower Colorado River, monitoring, normalized difference vegetation index, remote sensing, riparian, riparian areas, riparian zone, southwestern United States, time series, time series datasets, trends and changes, water use, wetland ecosystems, Fewer tags Colorado River Delta Project: Growing Season Evapotranspiration (ET) & Enhanced Vegetation Index (EVI2) difference maps These average EVI2 derived evapotranspiration (ET) raster data were compiled to develop time series data of the lower Colorado River (LCR) vegetation greenness and water use since the year 2000. An objective of our study was to evaluate short and long-term effects of drought and biocontrol on LCR riparian and aquatic ecosystems south of Hoover Dam. These data represent spatially explicit average Enhanced Vegetation Index (EVI2) derived evapotranspiration (ET) difference maps between two decades (2000 to 2010 and 2011 to 2020) and two 5 year periods (2000 to 2005 and 2016 to 2020). These data were compiled by the U.S. Geological Survey (USGS) and University of Arizona, to monitor riparian zone trends and changes... Tags: Arizona, Colorado River, ET, EVI2, Landsat images, All tags... Mexico, United States, Yuma, aquatic ecosystems, biota, ecosystem health, ecosystem monitoring, enhanced vegetation index, evapotranspiration, imageryBaseMapsEarthCover, lower Colorado River, monitoring, remote sensing, riparian, riparian areas, riparian zone, southwestern United States, time series, time series datasets, trends and changes, water use, wetland ecosystems, Fewer tags Riparian-Zone Boundaries for the U.S. Geological Survey Midwest Stream Quality Assessment In 2013, the first of several Regional Stream Quality Assessments (RSQA) was done in the Midwest United States. The Midwest Stream Quality Assessment (MSQA) was a collaborative study by the U.S. Geological Survey (USGS) National Water Quality Assessment (NAWQA), the USGS Columbia Environmental Research Center, and the U.S. Environmental Protection Agency (USEPA) National Rivers and Streams Assessment (NRSA). One of the objectives of the RSQA, and thus the MSQA, is to characterize the relationships between water-quality stressors and stream ecology and to determine the relative effects of these stressors on aquatic biota within the streams (U.S. Geological Survey, 2012). To meet this objective, a framework of fundamental... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Ecological reach, Geographic Information Systems, Geospatial Analysis, Geospatial Datasets, Illinois, All tags... Indiana, Iowa, Kansas, Kentucky, MSQA, Michigan, Midwest, Midwest Stream Quality Assessment, Minnesota, Missouri, National Water Quality Assessment, Nebraska, Ohio, RSQA, Regional Stream Quality Assessment, Riparian reach, Riparian zone, South Dakota, Wisconsin, inlandWaters, Fewer tags