Southwest Biological Research Center

Acoustic backscatter - Data and Python Code

These data were compiled for investigating the relationship between acoustic backscattering by riverbeds composed of various riverbed substrates (bed sediment), and for developing and testing a probabilistic model for substrate classification based on high-frequency multibeam acoustic backscatter. The model is described in Buscombe et al. (2017). The data consist of various quantities on coincident grids, from various sites along the Colorado River in Grand Canyon, including water depth, bed roughness, the area (or footprint) of the acoustic beam, unfiltered and filtered backscatter magnitude, sediment classification (for each location, 1 of 5 sediment classes in a categorical scheme), and the probabilities for...

Categories: Data; Tags: Arizona, Colorado River, Geography, Geomorphology, Glen Canyon, All tags... Grand Canyon, Information Sciences, Marble Canyon, Remote Sensing, Southwestern United States, USGS Science Data Catalog (SDC), United States, acoustic remote sensing, ecogeomorphology, fluvial geomorphology, fluvial sediment transport, multibeam backscatter, probabilistic modeling, seafloor mapping, stochastic modeling, submerged aquatic vegetation, substrate mapping, Fewer tags

Riparian Vegetation and Environmental Variables, Colorado River, 2014—Data

These data consist of species relative cover, percent cover of dead plant material, percent cover of soil and rock, and a variety of broad - and local- scale environmental variables. These data relate to sample sites along the Colorado River through Grand Canyon between Lees Ferry and river mile 245. The plant and ground cover data included here were originally collected as a part of annual vegetation monitoring by Grand Canyon Monitoring and Research Center. Environmental variables were either recorded in the field or obtained through other data sources. Species and ground cover data were collected in August and September 2014 at 96 randomly selected sample sites that were approximately evenly distributed along...

Types: Citation; Tags: American Southwest, Arizona, Colorado River, Environmental variables, Grand Canyon, All tags... Landscape ecology, Riparian vegetation, Southwestern United States, USGS Science Data Catalog (SDC), United States, Vegetation composition, Fewer tags

Landscape-scale wildlife species richness metrics

These raster data represent the results of a case study in Arizona on how vertebrate richness metrics can be used with existing state and federal guidance in wind and solar energy facility siting. Each of the four geodatabases (see Cross References) contain eight native terrestrial wildlife group models in Arizona: 1) all vertebrates, 2) amphibians, 3) reptiles, 4) birds, 5) mammals, 6) bats, 7) raptors and 8) long-distant migratory birds. An XML workbook is included that lists all terrestrial native vertebrate species in Arizona which cross-walks these species to the name of the National Gap Analysis Project species distribution model.

Tags: u'Energy Resources', u'Geography', u'Information Sciences', u'Remote Sensing', u'Wildlife Biology'], All tags... Amphibians, Arizona, Bats, Birds, Energy, High richness, Long distance migrants, Long distance migratory birds, Mammals, Raptors, Raster data, Reptiles, Southwest United States, USGS Science Data Catalog (SDC), United States, Vertebrates, Wildlife, [u'Ecology', Fewer tags

Riparian vegetation data used for comparing sampling methods along the Colorado River, Grand Canyon, Arizona

These data were collected as part of a methodologial comparison for collecting riparian vegetation data. Two common methods for collecting vegetation data were used: line-point intercept and 1m2 ocular quadrats (visual cover estimates). At each site and transect, both methods were used to collect cover and composition data by four different observers. The same transects and quadrats were utilized for both methods and all observers. Field data collected included percent cover for total living foliar cover, each plant species encountered, litter, dead plant material that is still standing, and ground cover features (biological soil crust, rock, sand, and fine soil particles). Line-point intercept data were collected...

Tags: Arizona, Botany, Colorado River, Ecology, Geography, All tags... Glen Canyon Dam, Glen Canyon National Recreation Area, Grand Canyon, Information Sciences, Lees Ferry, USGS Science Data Catalog (SDC), biological sampling, biota, field sampling, line-point intercept, northern Arizona, ocular quadrat, riparian ecosystems, riparian environments, riparian vegetation, vegetation, vegetation sampling methods, Fewer tags

Geomorphology and Campsite Data, Colorado River, Marble and Grand Canyon, Arizona

This ESRI geodatabase consists of 5 feature datsets with 23 individual polygon feature classes and two raster datasets. A master campsite polygon feature class represents the boundaries of campsites identified in the 1973, 1984, and 1991 campsite inventories of the Colorado River corridor in Grand Canyon, Arizona. The other polygon feature classes represent camp locations along the Colorado River corridor in Grand Canyon, Arizona during different survey periods using different surveying techniques. The raster datasets represent sub-aerial and sub-surface sandbar surfaces at 37 long term-monitoring sites between Lees Ferry and Diamond Creek, Arizona in Grand Canyon National Park, measured in September and October...

Types: Citation; Tags: Arizona, Colorado River, Diamond Creek, GIS, Grand Canyon, All tags... Grand Canyon National Park, Lees Ferry, Little Colorado River, Marble Canyon, Paria River, USGS Science Data Catalog (SDC), bathymetry, campsite, campsite area, campsite boundary, campsite inventory, campsite monitoring, campsite polygons, campsite survey, geographic information systems, geomorphology, land surveying, open sand area, raster data, recreation, sand deposits, sandbars, sonar, topography, vector data, Fewer tags