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These data are spatial polygon data and remote sensing image-based classification maps of surface water and vegetation species for 2012 along the Rio Grande River in Big Bend National Park in Texas. The geographic extent of the classification spans from the end of Mariscal Canyon to 5 km after the end of Boquillas Canyon, totaling approximately 77 Km of the river. The maps are also restricted to a digitized extent of riparian vegetation that is defined by the alluvial valley of the Rio Grande River. The 2012 classification maps are created using 20 cm multispectral (Near Infrared (NIR), Red and Green) imagery and LiDAR data collected in June 2012. The accuracy assessment for the classification product is based on...
Tags: Aquatic Biology,
Big Bend National Park,
Big Bend Region,
Ecology,
GIS vector data, All tags...
Geography,
Information Sciences,
NAIP,
National Agriculture Imagery Program,
Rio Grande River,
Texas,
USGS Science Data Catalog (SDC),
United States,
Wildlife Biology,
biota,
biota,
change detection,
classification,
geographic information system,
geography,
high-resolution multispectral airborne imagery,
hyperspectral imaging,
image classification,
imageryBaseMapsEarthCover,
management,
monitoring,
multispectral image analysis,
multispectral imaging,
remote Sensing,
remote sensing image-based classification maps,
research,
supervised image classification,
unsupervised image classification,
vegetation,
vegetation classification,
water classification, Fewer tags
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These data are a species-level classification map of riparian vegetation in the Colorado River riparian corridor in Grand Canyon, Arizona, USA. The classification is derived from 0.2 m pixel resolution multispectral aerial imagery acquired in May 2013. The classification spans the riparian zone of the river corridor between Glen Canyon Dam near Page, Arizona, and Lake Mead at Pearce Ferry, Arizona. The classification is divided into 5 distinct reaches of the river: Glen Canyon, Marble Canyon, Eastern Grand Canyon, Western Grand Canyon upstream of Diamond Creek, and Western Grand Canyon downstream of Diamond Creek. The method used for classification was a combination of supervised Classification And Regression Tree...
Tags: Arizona,
Botany,
Colorado River,
Diamond Creek,
Ecology, All tags...
Geography,
Glen Canyon,
Glen Canyon Dam,
Glen Canyon National Recreation Area,
Grand Canyon,
Grand Canyon National Park,
Information Sciences,
Lake Mead,
Lake Powell,
Lees Ferry,
Little Colorado River,
Marble Canyon,
National Canyon,
Pearce Ferry,
Remote Sensing,
USGS Science Data Catalog (SDC),
aerial photography,
botany,
decision support methods,
geospatial datasets,
image analysis,
image mosaics,
invasive species,
land use and land cover,
multispectral imaging,
native species,
plants (organisms),
regression analysis,
remote sensing,
scientific interpretation,
spatial analysis,
streamflow,
vegetation, Fewer tags
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These data are remote sensing image-based classification maps of unvegetated river-derived sand along the Colorado River. One map is based on imagery acquired in May 2013 and is a classification of sand located above the wetted river channel in the imagery which was acquired at the approximate contemporary low-flow river discharge of 8,000 cubic feet per second (227 cubic meters per second) and extends from Glen Canyon Dam at Lake Powell to Separation Canyon at Lake Mead, a total distance of approximately 255 river miles (410 river kilometer). Three other maps are based on imagery acquired in May 2002, 2009, and 2013, respectively, and are classifications of sand located above the wetted river channel (at river...
Categories: Data;
Tags: Arizona,
Colorado River,
Diamond Creek,
GIS vector data,
Geography, All tags...
Geomorphology,
Glen Canyon,
Glen Canyon Dam,
Glen Canyon National Recreation Area,
Grand Canyon,
Grand Canyon National Park,
Information Sciences,
Lake Mead,
Lake Powell,
Lees Ferry,
Remote Sensing,
Separation Canyon,
USGS Science Data Catalog (SDC),
aeolian,
change detection,
classification map,
debris fans,
eddies,
fine sediment,
fluvial,
high-resolution multispectral airborne imagery,
image classification,
large sediment deposition zones,
management,
monitoring,
multispectral image analysis,
remote sensing,
remote sensing image-based classification maps,
research,
river-derived sand,
sand classification,
sand distribution,
sediment-related resources,
supervised image classification,
unsupervised image classification,
unvegetated river-derived sand, Fewer tags
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These data are classification maps of total riparian vegetation along the Colorado River in Grand Canyon from Glen Canyon Dam to Pearce Ferry in Arizona. The data are derived from interpretation of multispectral high resolution airborne imagery that was acquired in May 2013. The total vegetation data have the same 0.2-meter ground resolution as the imagery. These data have not undergone a statistical accuracy assessment, but they are based on methods that included image interpretation to exhaustively identify total vegetation which have been shown to produce very high classification accuracies and excellent correlation between maps of total vegetation produced by independent analysts and ground truth. The data represent...
Types: Citation;
Tags: Arizona,
Bright Angel Creek,
Colorado River,
Diamond Creek,
Glen Canyon, All tags...
Glen Canyon Dam,
Grand Canyon,
Grand Canyon,
Havasu Creek,
Kanab Creek,
Lake Mead,
Lake Powell,
Lees Ferry,
Little Colorado River,
Marble Canyon,
Page,
Paria River,
Peach Springs,
Pearce Ferry,
Shinumo Creek,
Tapeats Creek,
USGS Science Data Catalog (SDC),
United States,
airborne imagery,
airborne multispectral high resolution data,
desert ecosystems,
digital aerial imagery,
land cover,
riparian vegetation,
vegetation,
wetland ecosystems,
wetlands, Fewer tags
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