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

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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 Chesapeake Bay Watershed 1:24k 10, 30 and 90-meter Riparian Buffer Zones This data release contains three 10-meter resolution GeoTIFFs representing 10-meter (35-foot), 30-meter (100-foot) and 90-meter (300-foot) riparian buffer zones along shorelines, rivers, streams, and other lotic (flowing) water features. The layers are binary, where the value of each cell represents the presence or absence of the buffer zone. In addition, the data release contains shapefile layers that document the extent of corrections that were made to the data to address errors in the stream network (see processing steps section for more details). The methodology combines various fine-scale input layers, including a 1:24k stream network and Chesapeake Bay 1-meter resolution Land Use/Land Cover to approximate... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake, Delaware, District of Columbia, Ecology, Forestry, All tags... Maryland, New York, Pennsylvania, USGS Science Data Catalog (SDC), Virginia, Water Quality, West Virginia, aquatic ecosystems, environment, land cover, land use, land use and land cover, riparian, riparian zone, river systems, terrestrial ecosystems, Fewer tags Riparian vegetation data downstream of Glen Canyon Dam in Glen Canyon National Recreation Area and Grand Canyon National Park, AZ from 2014 to 2019 These data were collected by the Grand Canyon Monitoring and Research Center (GCMRC) to support riparian vegetation monitoring along the Colorado River between Glen Canyon Dam and the full pool level of Lake Mead. The objectives of the GCMRC riparian vegetation monitoring program are to annually measure and summarize the status (composition and cover) of native and non-native vascular plant species within the riparian zone of the Colorado River between Glen Canyon Dam and Lake Mead, assess change in the vegetation composition and cover in the riparian zone, as related to geomorphic setting and dam operations, particularly flow regime, and collect data in a manner that can be used by multiple stakeholders and is... Tags: Arizona, Botany, Colorado River, Ecology, Geography, All tags... Geomorphology, Glen Canyon, Glen Canyon Dam, Glen Canyon National Recreation Area, Grand Canyon, Grand Canyon National Park, Information Sciences, Lake Mead, Marble Canyon, USGS Science Data Catalog (SDC), annual sampling, biogeography, biota, data collection, data release, datasets, environment, environmental variables, field data collection, field inventory and monitoring, field sampling, floristic composition, inlandWaters, long-term monitoring, native species, nonindigenous species, northern Arizona, ocular cover estimates, plant composition, plant cover, plant frequency, plant richness, plant species, plants (organisms), quadrat frames, randomly-selected, riparian plants, riparian zone, sample sites, species distribution, species diversity, species richness, time series datasets, vascular plants, vegetation, vegetation change, vegetation monitoring, wetland ecosystems, Fewer tags Riparian-Zone Boundaries for the U.S. Geological Survey Regional Stream Quality Assessment In 2013, the Regional Stream Quality Assessment (RSQA) study was started as part of the U.S. Geological Survey (USGS) National Water Quality Assessment (NAWQA) project. One of the objectives of the RSQA is to characterize the relationships between water-quality stressors and stream ecology and subsequently determine the relative effects of these stressors on aquatic biota within the streams (Garrett and others, 2017; Journey and others, 2015; Coles and others, 2019; Sheibley and others, 2017; May and others, 2020). The study was implemented in five regions across the United States (U.S.); the Midwest (MSQA) in 2013, the Southeast (SESQA) in 2014, the Pacific Northwest (PNSQA) in 2015, the Northeast (NESQA) in 2016,... Tags: Alabama, CSQA, California, Connecticut, Geographic Information Systems, All tags... Georgia, Geospatial Analysis, Geospatial Datasets, Illinois, Indiana, Iowa, Kansas, Kentucky, MSQA, Massachusetts, Midwest, Minnesota, Missouri, NESQA, National Water Quality Assessment, Nebraska, New Hampshire, New Jersey, New York, North Carolina, Northeast, Ohio, Oregon, PNSQA, Pacific Northwest, Pennsylvania, RSQA, Regional Stream Quality Assessment, Rhode Island, Riparian, Riparian zone, SESQA, South Carolina, Southeast, United States, Vermont, Virginia, Washington, Wisconsin, boundaries, environment, geoscientificInformation, inlandWaters, Fewer tags Colorado River Project: A compilation of vegetation indices, phenology assessment metrics, estimates of evapotranspiration and change maps for five reaches between Hoover and Morelos Dams on the Lower Colorado River, for nearly the last two decades These raster and tabular data were compiled to develop time series data of the lower Colorado River (LCR) vegetation greenness, water use, 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 average Enhanced Vegetation Index (EVI2) derived evapotranspiration (ET) difference, and 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). The time-series period statistics data provide estimates of the riparian woodland area... Tags: Arizona, Botany, Colorado River, ET, EVI2, All tags... Ecology, Geography, Hydrology, Information Sciences, Land Use Change, Landsat images, Mexico, NDVI, Remote Sensing, Soil Sciences, USGS Science Data Catalog (SDC), 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 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