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High-resolution geophysical mapping of Lake Powell in the Glen Canyon National Recreation Area in Utah and Arizona was conducted between October 8 and November 15, 2017, as part of a collaborative effort between the U.S. Geological Survey and the Bureau of Reclamation to provide high-quality data needed to reassess the area-capacity tables for the Lake Powell reservoir. Seismic data collected during this survey can help to define the rates of deposition within the San Juan and Colorado Rivers, which are the main inflows to Lake Powell. These new data are intended to improve water budget management decisions that affect the natural and recreational resources of the reservoir. Multibeam echosounder bathymetry and...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Antelope Canyon,
BOR,
Bullfrog,
Bullfrog Bay,
Bureau of Reclamation, All tags...
CMGP,
CRSP,
Coastal and Marine Geology Program,
Coconino County,
Colorado River,
Colorado River Storage Project,
DOI,
Dangling Rope,
Department of the Interior,
Escalante River,
Friendship Bay,
Garfield County,
GeoTIFF,
Glen Canyon,
Glen Canyon Dam,
Glen Canyon National Recreation Area,
Good Hope Bay,
Great Bend,
Gunsight Bay,
Halls Bay,
Halls Crossing,
Hite,
Kane County,
Lake Powell,
Last Chance Bay,
NPS,
National Park Service,
Navajo Canyon,
Padre Bay,
Page,
R/V Stephens,
Rainbow Bridge National Monument,
Rock Creek Bay,
San Juan County,
San Juan River,
State of Arizona,
State of Utah,
T20-P,
U.S. Geological Survey,
USGS,
UWSC,
United States of America,
Utah Water Science Center,
WHCMSC,
Wahweap,
Wahweap Bay,
Warm Creek Bay,
Woods Hole Coastal and Marine Science Center,
backscatter,
field activity number 2017-049-FA,
geology,
geophysics,
geoscientificInformation,
geospatial datasets,
imageryBaseMapsEarthCover,
inlandWaters,
lakebed acoustic reflectivity,
lakebed characteristics,
multibeam backscatter,
multibeam echosounder,
multibeam sonar,
time-series, Fewer tags
These data were compiled to provide a resource for other researchers interested in water-surface elevations and flow velocity across a wide range of discharge in the study reach for the project. Objective(s) of our study were to construct a two-dimensional hydrodynamic model for the 15.8 mile tailwater reach of the Colorado River in Glen Canyon between Glen Canyon Dam and Lees Ferry, Arizona. These data represent the results of the two-dimensional modeling effort with each data table (50) including the results of each run of the model. Additionally, other data represent a comparison of modeled water surface elevations to measured water surface elevations for historic Bureau of Reclamation cross sections in the study...
Tags: Arizona,
Coconino County,
Colorado River,
Geography,
Glen Canyon, All tags...
Glen Canyon Dam,
Glen Canyon National Recreation Area,
Hydrology,
Information Sciences,
Lees Ferry,
USGS Science Data Catalog (SDC),
USGS:6595800dd34e3265ab152e47,
Water Resources,
accuracy assessment,
bathymetry,
bathymetry measurement,
bed shear stress,
data release,
digital elevation models,
elevation,
flow velocity,
geomorphology,
geoscientificInformation,
hydraulic characteristics,
hydrodynamics,
hydrographic datasets,
inlandWaters,
mathematical modeling,
shoreline extents,
stream discharge,
streamflow,
tailwater reach,
topography,
two-dimensional hydrodynamic model,
velocities,
water depths,
water surface elevation, Fewer tags
Lake Powell retains most of the phosphorus that it receives, leading to downstream phosphorus limitation. These data were compiled to examine controls on phosphorus cycling below Lake Powell in the Colorado River and from storm inputs from the Paria River. Objectives of our study were to determine how several forms of phosphorus, both organic and inorganic, were cycled under varying dissolved oxygen concentrations and pH, reflecting the range of values observed in the river over the years. These data represent nitrogen, phosphorus, calcium, and carbon concentrations, water quality parameters (pH, dissolved oxygen, temperature), sediment composition, total protein, and extracellular enzyme activity (alkaline phosphatase)....
Categories: Data;
Tags: Aquatic Biology,
Arizona,
Colorado River,
Ecology,
Geochemistry, All tags...
Geography,
Glen Canyon,
Glen Canyon National Recreation Area,
Grand Canyon,
Grand Canyon National Park,
Hydrology,
Information Sciences,
Lake Mead National Recreation Area,
Lake Powell,
Lees Ferry,
Limnology,
Little Colorado River,
Paria River,
Pearce Ferry,
USGS Science Data Catalog (SDC),
alkaline earth elements,
alkaline phosphatase,
atomic emission spectroscopy,
biochemistry,
biota,
bulk density,
calcite,
calcium carbonate,
carbon,
chemical analysis,
chemical attributes,
dam,
data release,
dissolved oxygen concentrations,
dissolved oxygen optodes,
dissolved phosphorus concentrations,
environment,
extracellular enzyme activity,
field experiments,
freshwater ecosystems,
incubations,
inductively coupled plasma,
inlandWaters,
laboratory bottle incubations,
laboratory experiments,
nitrogen,
nutrient content (water),
nutrient cycling,
organic matter,
oxygen content (water),
phosphorus,
phosphorus content,
phosphorus cycling,
river systems,
river water quality,
riverine phosphorus cycling,
sediment composition,
suspended material (water),
tailwater,
total dissolved nitrogen,
total phosphorus concentrations,
total protein analysis,
unconsolidated deposits,
water chemistry,
water chemistry data,
water pH,
water quality,
water quality sonde,
water samples,
water temperature, Fewer tags
These data were compiled for an outreach article published in the Boatman's Quarterly Review, which is a magazine published by Grand Canyon River Guides Association. The objectives of our study was to describe the outcomes of the 2018-2020 Bug Flows experiment to a general audience. These data represent 10 years (2012-2021) of invertebrate data and 100 years (1921-2021) of flow data. These data were collected from the Colorado River in Glen Canyon National Recreation Area and Grand Canyon National Park. These data were collected by recreational river runners through a community science effort where we provided river runners with light trapping equipment to sample emergent aquatic insects each night of their expeditions....
Categories: Data;
Tags: Aquatic Biology,
Arizona,
Colorado River,
Ecology,
Geography, All tags...
Glen Canyon,
Glen Canyon National Recreation Area,
Grand Canyon,
Grand Canyon National Park,
Havasupai Reservation,
Hualapai Indian Reservation,
Hydrology,
Information Sciences,
Lees Ferry,
Navajo Nation Reservation,
USGS Science Data Catalog (SDC),
USGS gage 09380000,
adult insects,
aquatic biology,
aquatic ecosystems,
aquatic insects,
biota,
bug Flows experiment,
catch rate,
citizen science programs,
community science,
data release,
emergence rates,
field experiments,
field sampling,
inlandWaters,
insects,
invertebrate counts,
invertebrate data,
invertebrates,
life sciences,
light traps,
river runner,
sampling duration,
stage variation,
stream flow data,
stream-gage measurement, Fewer tags
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
This data release comprises nearly three decades of measurements of sandbar topography for monitoring sites along the Colorado River in Grand Canyon National Park and Glen Canyon National Recreation Area. The data were collected to monitor the effects of the operations of Glen Canyon Dam on sandbars, which are also recreational campsites. The data were collected by the US Geological Survey Grand Canyon Monitoring and Research Center in cooperation with Northern Arizona University. Funding for data collection, processing, and reporting has been provided by the Glen Canyon Dam Adaptive Management Program administered by the US Department of the Interior Bureau of Reclamation.
Tags: Arizona,
Colorado River,
Ecology,
Geography,
Geomorphology, All tags...
Glen Canyon Dam,
Glen Canyon National Recreation Area,
Grand Canyon National Park,
Hydrogeology,
Information Sciences,
Remote Sensing,
USGS Science Data Catalog (SDC),
Water Resources,
aquatic ecosystems,
campsites,
dam operations,
dams,
deposition,
elevation,
erosion,
field experiments,
field inventory and monitoring,
geomorphology,
geoscientificInformation,
high-flow experiments,
hydrology,
hydropower,
inlandWaters,
measurements,
monitoring,
power generation water use,
rebuild sandbars,
recreation,
recreational campsites,
river ecosystems,
rivers,
sandbar topography,
sandbars,
sedimentation,
size and condition of the sandbars,
terrestrial ecosystems,
topography,
water resources, Fewer tags
Comma-separated values (.csv) file containing data related to mercury concentrations in dragonfly samples from U.S. National Parks collected as part of the Dragonfly Mercury Project (DMP). This data release supersedes Eagles-Smith, C.A., Nelson, S.J., Flanagan-Pritz, C.M., Willacker Jr., J.J., and Klemmer, A.J., 2018, Total mercury concentrations in dragonfly larvae from U.S. national parks (ver. 8.0, December 2022): U.S. Geological Survey data release, https://doi.org/10.5066/P9TK6NPT. Please contact fresc_outreach@usgs.gov for access.
Categories: Data,
Data Release - Revised;
Tags: Acadia National Park,
Allegheny Portage Railroad National Historic Site,
Amistad National Recreation Area,
Apostle Islands National Lakeshore,
Appomattox Court House National Historical Park, All tags...
Aquatic Biology,
Assateague Island National Seashore,
Battle Creek Cypress Swamp,
Bear Creek Lake Park,
Bear Meadows Natural Area,
Big Bend National Park,
Big Cypress National Preserve,
Big Thicket National Preserve,
Buffalo National River,
Cape Cod National Seashore,
Capitol Reef National Park,
Carl Sandburg Home National Historic Site,
Carlsbad Caverns National Park,
Channel Islands National Park,
Chattahoochee River National Recreation Area,
Chickasaw National Recreation Area,
City of Rocks National Reserve,
Colorado National Monument,
Congaree National Park,
Crater Lake National Park,
Craters of the Moon National Monument & Preserve,
Cuyahoga Valley National Park,
Death Valley National Park,
Delaware Water Gap National Recreation Area,
Denali National Park and Preserve,
Devils Tower National Monument,
East Inlet Natural Area-Connecticut Lakes Nature Preserve,
Ecology,
Ell Pond Preserve,
Everglades National Park,
Fort Larned National Historic Site,
Fort Worth Nature Center and Refuge National Natural Landmark,
Gateway National Recreation Area,
Glacier Bay National Park & Preserve,
Glacier National Park,
Glen Canyon National Recreation Area,
Golden Gate National Recreation Area,
Grand Canyon National Park,
Grand Portage National Monument,
Grand Teton National Park,
Great Basin National Park,
Great Sand Dunes National Park,
Great Smoky Mountains National Park,
Gulf Islands National Seashore,
Hawaii Volcanoes National Park,
Homestead National Monument,
Horseshoe Bend National Military Park,
Hot Springs National Park,
Indiana Dunes National Park,
Isle Royale National Park,
Jean Lafitte National Historical Park and Preserve,
John Day Fossil Beds National Monument,
Joshua Tree National Park,
Katahdin Woods and Waters National Monument,
Katmai National Park and Preserve,
Kenai Fjords National Park,
Kenilworth Park & Aquatic Gardens,
Klondike Gold Rush National Historical Park,
Knife River Indian Villages National Historic Site,
Lake Clark National Park and Preserve,
Lassen Volcanic National Park,
Lewis and Clark National Historical Park,
Lilley Cornett Woods,
Mammoth Cave National Park,
Marsh-Billings-Rockefeller National Park,
Maurice National Wild and Scenic River,
Minute Man National Historical Park,
Mississippi National River & Recreation Area,
Monocacy National Battlefield,
Montezuma Castle National Monument,
Mount Rainier National Park,
Natchez Trace Parkway and National Scenic Trail,
New River Gorge National Park and Preserve,
Niobrara National Scenic River,
North Cascades National Park,
Ocmulgee Mounds National Historical Park,
Olympic National Park,
Oregon Caves National Monument,
Ozark National Scenic Riverway,
Padre Island National Seashore,
Petersburg National Battlefield,
Pictured Rocks National Lakeshore,
Pinnacles National Park,
Pipestone National Monument,
Prince William Forest Park,
Pu'ukohola Heiau National Historic Site,
Redwood National Park,
Richmond National Battlefield Park,
Rio Grande Wild & Scenic River,
Rock Creek Park,
Rocky Mountain National Park,
Roosevelt-Vanderbilt National Historic Sites,
Saguaro National Park,
Saint Croix National Scenic Riverway,
Saint-Gaudens National Historic Site,
San Juan Island National Historical Park,
Santa Monica Mountains National Recreation Area,
Sequoia & Kings Canyon National Parks,
Shenandoah National Park,
Sleeping Bear Dunes National Lakeshore,
Sudbury, Assabet & Concord Wild & Scenic Rivers,
Tallgrass Prairie National Preserve,
Timucuan Ecological Historic Preserve,
Tumacacori National Historical Park,
Tuzigoot National Monument,
USGS Science Data Catalog (SDC),
Upper Delaware Scenic and Recreational River,
Valles Caldera National Preserve,
Voyageurs National Park,
Water Quality,
Weir Farm National Historical Park,
Wekiva Wild & Scenic River,
White Mountain National Forest,
Wildlife Biology,
Wind Cave National Park,
Women’s Rights National Historical Park,
Yellowstone National Park,
Yosemite National Park,
Zion National Park,
biota,
environment,
mercury contamination, Fewer tags
These data are the primary data used to model rainbow trout growth in Glen Canyon. Fish growth data were collected from nighttime boat electrofishing field campaigns conducted five to six times per year in April, July, September, and January, from April 2012 through November 2021 for a total of 9798 observations of mark-recapture-based growth. Sampling was conducted in a five km reach in the lower portion of the Glen Canyon tailwater (3.7-8.9 km upstream of Lees Ferry, AZ). Two nights of sampling occurred on each trip, with the central 2-3 km of the reach sampled on both nights. After capture, fish were kept in aerated 40-L buckets and transported to a central processing location. Groups of 10-15 fish were anesthetized...
Categories: Data;
Tags: Aquatic Biology,
Arizona,
Colorado River,
Ecology,
Geography, All tags...
Glen Canyon,
Glen Canyon Dam,
Glen Canyon National Recreation Area,
Information Sciences,
Lees Ferry,
USGS Science Data Catalog (SDC),
Upper Colorado River,
Water Resources,
Wildlife Biology,
animal tracking,
biomass,
biota,
controlled flooding,
data release,
droughts,
electrofishing,
experimental flow,
field inventory and monitoring,
field sampling,
fish,
fish growth,
fish weight,
fork length,
hydropeaking,
inlandWaters,
mark-recapture,
phosphorus,
rainbow trout,
river reaches,
streamflow,
tailwater,
water quality,
water temperature, Fewer tags
These data were compiled as part of a long-term (1964 - 2022) water quality monitoring program at Lake Powell. Objectives of our study were to release a consistent record of long-term water quality data. The 58-year limnology dataset captures some water quality parameters (temperature, salinity, major ions, total suspended solids) from reservoir filling to present day. It also contains a 38-year record of secchi depth, and a ~30-year record of nutrients, phytoplankton, and zooplankton assemblages. The data were collected from various sites within the Lake Powell reservoir and the Glen Canyon dam. Regular monthly sampling occurred at three sites near the dam and reservoir-wide sampling was generally conducted quarterly,...
Categories: Data,
Data Release - Revised;
Tags: Arizona,
Aztec Creek,
Bridge Creek,
Cathedral Canyon,
Clear Creek, All tags...
Colorado River,
Dark Canyon,
Davis Gulch,
Dreissena bugensis,
Escalante River,
Face Canyon,
Glen Canyon,
Glen Canyon Dam,
Glen Canyon National Recreation Area,
Gunsight Canyon,
Labyrinth Canyon,
Lake Powell,
Last Chance Canyon,
Lees Ferry,
Navajo Canyon,
Rainbow Bridge,
Red Canyon,
Rock Creek Canyon,
San Juan River,
Sheep Canyon,
USGS Science Data Catalog (SDC),
Upper Colorado River Basin,
Utah,
Wahweap Bay,
Warm Creek Bay,
Warm Creek Bay Alternate,
West Canyon,
arid reservoir,
chlorophyll a,
data release,
discrete sample,
dissolved oxygen,
field inventory and monitoring,
field monitoring stations,
inlandWaters,
invasive bivalve,
invasive species,
laboratory methods,
limnology,
long-term ecological monitoring,
long-term trends,
major ions,
nutrients,
oxygen content (water),
phytoplankton,
plankton,
profiles,
reservoir,
salinity,
secchi depth,
site visit,
station location,
total suspended solids,
turbidity,
water chemistry,
water quality,
water sampling,
water temperature,
zooplankton, Fewer tags
These data were compiled for assessing how geomorphic changes measured as topographic differences from repeat surveys represent measured and modelled estimates of aeolian sediment transport and dune mobility. Objective(s) of our study were to investigate whether topographic changes can serve as a proxy for aeolian transport and sediment mobility in dunefield environments. This was accomplished by relating topographic changes to modeled and observed estimates of sediment transport and dune mobility over months to decades within a partially vegetated dunefield starved of upwind sediment supplies. We specifically tested if topographic changes measured as net and total volume changes and topographic surface roughness...
Tags: Arizona,
Colorado River,
Glen Canyon National Recreation Area,
Grand Canyon,
Grand Canyon National Park, All tags...
Lees Ferry,
Paria River,
UAV imagery,
USGS:658efcd9d34e3265ab14d2bc,
aeolian,
aerial photography,
bare sand,
biocrust sand,
biogeography,
biological soil crusts,
biota,
change detection,
climatologyMeteorologyAtmosphere,
data release,
disturbed,
dune field,
dune mobility,
dune surface,
elevation,
environment,
geomorphic change,
geomorphology,
gravel bar,
gravel deposits,
image collections,
imageryBaseMapsEarthCover,
in-field sediment transport data,
land use and land cover,
land use change,
planningCadastre,
remote sensing,
repeat surveys,
sediment transport,
topographic differences,
topographic surveys,
topography,
unconsolidated deposits,
unoccupied aerial vehicle imagery,
vegetated sand,
vegetation,
wind,
wind strength,
woody vegetation, Fewer tags
These data were compiled for assessing how geomorphic changes measured as topographic differences from repeat surveys represent measured and modelled estimates of aeolian sediment transport and dune mobility. Objective(s) of our study were to investigate whether topographic changes can serve as a proxy for aeolian transport and sediment mobility in dunefield environments. This was accomplished by relating topographic changes to modeled and observed estimates of sediment transport and dune mobility over months to decades within a partially vegetated dunefield starved of upwind sediment supplies. We specifically tested if topographic changes measured as net and total volume changes and topographic surface roughness...
Categories: Data;
Tags: Arizona,
Colorado River,
Glen Canyon National Recreation Area,
Grand Canyon,
Grand Canyon National Park, All tags...
Lees Ferry,
Paria River,
UAV imagery,
USGS:658efe37d34e3265ab14d2c1,
aeolian,
aerial photography,
bare sand,
biocrust sand,
biogeography,
biological soil crusts,
biota,
change detection,
climatologyMeteorologyAtmosphere,
data release,
disturbed,
dune field,
dune mobility,
dune surface,
elevation,
environment,
geomorphic change,
geomorphology,
gravel bar,
gravel deposits,
image collections,
imageryBaseMapsEarthCover,
in-field sediment transport data,
land use and land cover,
land use change,
planningCadastre,
remote sensing,
repeat surveys,
sediment transport,
topographic differences,
topographic surveys,
topography,
unconsolidated deposits,
unoccupied aerial vehicle imagery,
vegetated sand,
vegetation,
wind,
wind strength,
woody vegetation, Fewer tags
Hanging garden plant communities form at seeps on cliffs. A given community may include common riparian species, disjunct populations, and species endemic to hanging gardens. What structures hanging harden communities, and how they respond to disturbance are poorly understood. In 1989, fireworks ignited a hanging garden in Knowles Cañon, destroying aboveground vegetation. Permanent plots were established in July 1993 to monitor changes in vegetation and soil biota. Revegetation of the garden has been limited to grasses, forbs, and ferns where water was present at the soil surface, and shrubs and trees sprouting from surviving rootstocks. Water drips from the overhanging cliff in the central area, where plant cover...
Categories: Publication;
Types: Citation,
Conference Citation;
Tags: Colorado Plateau,
Glen Canyon National Recreation Area,
National Park Service,
Proceedings of the Third Biennial Conference of Research on the Colorado Plateau,
fire, All tags...
hanging garden,
soil bacteria,
soil fungi,
soil nematodes,
succession, Fewer tags
This section of the data release includes core images in the format of photos (JPG) that have been compressed into a zipped file (2018LakePowellCoring_CorePhotos.zip). It is Part 4 (of four) in this data release and contains images of the cleaned archival half from split cores as they appeared immediately after splitting (late March and early April 2019). Each photo includes a ruler (in centimeters) and X-Rite ColorChecker Classic color correction card that may be used for corrections. Drillhole information, such as location and total recovery, are outlined in “Part 1 – Drillhole information from the 2018 coring project in Lake Powell, Utah” (2018LakePowellCoring_DrillholeInfo.csv) of this data release. Each drillhole...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Animas River,
Antelope Canyon,
Bears Ears National Monument,
Bullfrog,
Bullfrog Bay, All tags...
Canyonlands National Park,
Capitol Reef National Park,
Castle Butte,
Cataract Canyon,
Cha Bay,
Cha Canyon,
Coconino County,
Colorado River,
Dangling Rope,
Deep Canyon,
Dirty Devil River,
Escalante River,
Farley Canyon,
Fourmile Canyon,
Friendship Bay,
Garfield County,
Glen Canyon Dam,
Glen Canyon National Recreation Area,
Gold King Mine,
Good Hope Bay,
Grand Staircase-Escalante National Monument,
Great Bend,
Gunsight bay,
Halls Bay,
Halls Crossing,
Hite,
Hole in the Rock,
Kane County,
Lake Powell,
Last Chance Bay,
Mexican Hat,
Monument Valley,
Narrow Canyon,
Navajo Canyon,
Neshkahi Wash,
North Wash,
Padre Bay,
Page,
Piuite Canyon,
Piute Farms Wash,
Piute Mesa,
Piute Wash,
Rainbow Bridge National Monument,
Reflection Canyon,
Rincon,
Rock Creek Bay,
San Juan County,
San Juan River,
Silverton,
State of Arizona,
State of Utah,
The Horn,
Trachyte Canyon,
Twomile Canyon,
United States of America,
Wahweap,
Wahweap Bay,
Warm Creek Bay,
White Canyon,
Wilson Mesa,
Zahn Bay,
bathymetry,
bedforms,
bulk density,
clay deposits,
contaminant transport,
contamination and pollution,
core analysis,
dissolved metals,
drilling and coring,
field inventory and monitoring,
geomorphology,
gravel deposits,
groundwater and surface-water interaction,
hazards,
human environmental safety,
hydrogeology,
hydrologic processes,
hydrology,
image analysis,
industrial pollution,
lakebed characteristics,
lidar,
limnology,
magnetic susceptibility analysis,
mine drainage,
mine waste,
national centers,
partnerships,
photography,
piston coring,
recreation,
remediation,
resistivity,
rotary coring,
sample repositories,
sand deposits,
sedimentation,
sedimentology,
sediment transport,
soil horizons,
spectrophotometry,
stratigraphic sections,
stratigraphic thickness,
stratigraphy,
stream-gage measurement,
streamflow,
surface-water level,
surface water (non-marine),
surface water quality,
suspended material,
toxic trace element contamination,
turbidity,
unconsolidated deposits,
water circulation,
water resources,
water supply and demand, Fewer tags
Mercury is a globally distributed pollutant that threatens human and ecosystem health. Even protected areas, such as national parks, are subjected to mercury contamination because it is delivered via atmospheric deposition, often after long-range transport. In aquatic ecosystems, certain environmental conditions can promote microbial processes that convert inorganic mercury to an organic form (methylmercury). Methylmercury biomagnifies through food webs and is a potent neurotoxicant and endocrine disruptor. This dataset contains data on the length, mass, and muscle total mercury concentration of Brown Trout (Salmo trutta) and Rainbow Trout (Oncorhynchus mykiss) collected from the Colorado River in Glen Canyon National...
Development of a high-resolution digital elevation model (DEM) of the pre-Glen Canyon Dam topography in Glen Canyon National Recreation Area, Utah and Arizona was initiated to assist the U.S. Geological Survey (USGS) in its Lake Powell coring program in the fall of 2018 (https://www.usgs.gov/centers/ut-water/science/lake-powell-coring). Topographic surveys of Glen Canyon were commissioned by the Bureau of Reclamation during the planning stages for Lake Powell as part of the Colorado River Storage Project (S. 500, 1956). The Colorado River arm was surveyed by Alster and Associates, Inc. in 1958 and 1959 at a contour interval of 10-feet from the river surface at the future dam site through where the 3,750-foot contour...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Animas River,
Antelope Canyon,
Bullfrog,
Bullfrog Bay,
Capitol Reef National Park, All tags...
Castle Butte,
Cataract Canyon,
Cha Bay,
Cha Canyon,
Coconino County,
Colorado River,
Dangling Rope,
Deep Canyon,
Escalante River,
Fourmile Canyon,
Friendship Bay,
Garfield County,
Geomorphology,
Glen Canyon Dam,
Glen Canyon National Recreation Area,
Gold King Mine,
Good Hope Bay,
Grand Staircase-Escalante National Monument,
Great Bend,
Gunsight Bay,
Halls Bay,
Halls Crossing,
Hite,
Hole in the Rock,
Information Sciences,
Kane County,
Lake Powell,
Land Use Change,
Last Chance Bay,
Mexican Hat,
Navajo Canyon,
Navajo Indian Reservation,
Neshkahi Wash,
Padre Bay,
Page,
Piute Canyon,
Piute Farms Wash,
Piute Mesa,
Piute Wash,
Rainbow Bridge National Monument,
Reflection Canyon,
Rincon,
Rock Creek Bay,
San Juan County,
San Juan River,
Silverton,
State of Arizona,
State of Utah,
Twomile Canyon,
USGS Science Data Catalog (SDC),
United States of America,
Wahweap,
Wahweap Bay,
Warm Creek Bay,
Water Quality,
Water Resources,
White Canyon,
Wilson Mesa,
Zahn Bay,
bathymetry,
digital elevation model,
geomorphology,
historical data,
reservoir sedimentation, Fewer tags
Comma-separated values (.csv) files containing data related to a National-scale assessment of mercury bioaccumulation in the US National Parks using dragonfly larvae as biosentinels through a citizen science framework.
Categories: Data;
Tags: Acadia National Park,
Allegheny Portage Railroad National Historic Site,
Apostle Islands National Lakeshore,
Appomattox Court House National Historical Park,
Aquatic Biology, All tags...
Battle Creek Cypress Swamp,
Bear Creek Lake Park,
Bear Meadows Natural Area,
Big Bend National Park,
Big Cypress National Park,
Big Thicket National Preserve,
Buffalo National River,
Cape Cod National Seashore,
Capitol Reef National Park,
Carl Sandburg Home National Historic Site,
Channel Islands National Park,
Chickasaw National Recreation Area,
Colorado National Monument,
Congaree National Park,
Cuyahoga Valley National Park,
Death Valley National Park,
Delaware Water Gap National Recreation Area,
Denali National Park and Preserve,
Devils Tower National Monument,
East Inlet Natural Area-Connecticut Lakes Nature Preserve,
Ecology,
Environmental Health,
Everglades National Park,
Fort Worth Nature Center and Refuge National Natural Landmark,
Gateway National Recreation Area,
Glacier Bay National Park & Preserve,
Glacier National Park,
Glen Canyon National Recreation Area,
Golden Gate National Recreation Area,
Grand Canyon National Park,
Grand Portage National Monument,
Grand Teton National Park,
Great Basin National Park,
Great Sand Dunes National Park,
Great Smoky Mountains National Park,
Gulf Islands National Seashore,
Hawaii Volcanoes National Park,
Homestead National Historic Site,
Hot Springs National Park,
Indiana Dunes National Park,
Isle Royale National Park,
Jean Lafitte National Historical Park and Preserve,
John Day Fossil Beds National Monument,
Katahdin Woods and Waters National Monument,
Katmai National Park and Preserve,
Kenilworth Park & Aquatic Gardens,
Klondike Gold Rush National Historical Park,
Knife River Indian Villages National Historic Site,
Lake Clark National Park,
Lassen Volcanic National Park,
Lewis and Clark National Historical Park,
Mammoth Cave National Park,
Marsh-Billings-Rockefeller National Park,
Maurice National Wild & Scenic River,
Minute Man National Historical Park,
Mississippi National River & Recreation Area,
Monocacy National Battlefield,
Montezuma Castle National Monument,
Mount Rainier National Park,
Natchez Trace Parkway and National Scenic Trail,
Niobrara National Scenic River,
North Cascades National Park,
Olympic National Park,
Oregon Caves National Monument,
Ozark National Scenic Riverway,
Padre Island National Seashore,
Pictured Rocks National Lakeshore,
Pinnacles National Park,
Pipestone National Monument,
Prince William Forest Park,
Pu'ukohola Heiau National Historic Site,
Redwood National Park,
Richmond National Battlefield Park,
Rock Creek Park,
Rocky Mountain National Park,
Roosevelt-Vanderbilt National Historic Sites,
Saguaro National Park,
Saint Croix National Scenic Riverway,
Saint-Gaudens National Historic Site,
San Juan Island National Historical Park,
Santa Monica Mountains National Recreation Area,
Saugus Iron Works National Historic Site,
Sequoia & Kings Canyon National Parks,
Shenandoah National Park,
Sleeping Bear Dunes National Lakeshore,
Tallgrass Prairie National Preserve,
Timucuan Ecological Historic Preserve,
Tumacacori National Historical Park,
Tuzigoot National Monument,
USGS Science Data Catalog (SDC),
Upper Delaware Scenic and Recreational River,
Valles Caldera National Preserve,
Voyageurs National Park,
Water Quality,
Weir Farm National Historic Site,
Wildlife Biology,
Wind Cave National Park,
Women’s Rights National Historical Park,
Yellowstone National Park,
Yosemite National Park,
Zion National Park,
biota,
environment,
mercury contamination, Fewer tags
This section of the data release includes drillhole information in the format of a comma-separated value (CSV) file (2018LakePowellCoring_DrillholeInfo.csv). It is Part 1 (of four) in this data release and represents the broadest hierarchical information on the dataset including the drillhole name, location, water depth, sediments top and bottom, drillhole depth, and recovery for each coring location. Each drillhole comprises multiple cores which are outlined in “Part 2 – Core and core section information from the 2018 coring project in Lake Powell, Utah” (2018LakePowellCoring_CoreSectionInfo.csv) of this data release. Core logs and spectrophotometry data are available in “Part 3 – Multi-Sensor Core Logger and spectrophotometry...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Animas River,
Antelope Canyon,
Bears Ears National Monument,
Bullfrog,
Bullfrog Bay, All tags...
Canyonlands National Park,
Capitol Reef National Park,
Castle Butte,
Cataract Canyon,
Cha Bay,
Cha Canyon,
Coconino County,
Colorado River,
Dangling Rope,
Deep Canyon,
Dirty Devil River,
Escalante River,
Farley Canyon,
Fourmile Canyon,
Friendship Bay,
Garfield County,
Glen Canyon Dam,
Glen Canyon National Recreation Area,
Gold King Mine,
Good Hope Bay,
Grand Staircase-Escalante National Monument,
Great Bend,
Gunsight bay,
Halls Bay,
Halls Crossing,
Hite,
Hole in the Rock,
Kane County,
Lake Powell,
Last Chance Bay,
Mexican Hat,
Monument Valley,
Narrow Canyon,
Navajo Canyon,
Neshkahi Wash,
North Wash,
Padre Bay,
Page,
Piuite Canyon,
Piute Farms Wash,
Piute Mesa,
Piute Wash,
Rainbow Bridge National Monument,
Reflection Canyon,
Rincon,
Rock Creek Bay,
San Juan County,
San Juan River,
Silverton,
State of Arizona,
State of Utah,
The Horn,
Trachyte Canyon,
Twomile Canyon,
United States of America,
Wahweap,
Wahweap Bay,
Warm Creek Bay,
White Canyon,
Wilson Mesa,
Zahn Bay,
bathymetry,
bedforms,
bulk density,
clay deposits,
contaminant transport,
contamination and pollution,
core analysis,
dissolved metals,
drilling and coring,
field inventory and monitoring,
geomorphology,
gravel deposits,
groundwater and surface-water interaction,
hazards,
human environmental safety,
hydrogeology,
hydrologic processes,
hydrology,
image analysis,
industrial pollution,
lakebed characteristics,
lidar,
limnology,
magnetic susceptibility analysis,
mine drainage,
mine waste,
national centers,
partnerships,
photography,
piston coring,
recreation,
remediation,
resistivity,
rotary coring,
sample repositories,
sand deposits,
sedimentation,
sedimentology,
sediment transport,
soil horizons,
spectrophotometry,
stratigraphic sections,
stratigraphic thickness,
stratigraphy,
stream-gage measurement,
streamflow,
surface-water level,
surface water (non-marine),
surface water quality,
suspended material,
toxic trace element contamination,
turbidity,
unconsolidated deposits,
water circulation,
water resources,
water supply and demand, Fewer tags
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
These data were compiled for assessing how geomorphic changes measured as topographic differences from repeat surveys represent measured and modelled estimates of aeolian sediment transport and dune mobility. Objective(s) of our study were to investigate whether topographic changes can serve as a proxy for aeolian transport and sediment mobility in dunefield environments. This was accomplished by relating topographic changes to modeled and observed estimates of sediment transport and dune mobility over months to decades within a partially vegetated dunefield starved of upwind sediment supplies. We specifically tested if topographic changes measured as net and total volume changes and topographic surface roughness...
Tags: Arizona,
Botany,
Colorado River,
Ecology,
Geography, All tags...
Geomorphology,
Glen Canyon National Recreation Area,
Grand Canyon,
Grand Canyon National Park,
Information Sciences,
Lees Ferry,
Paria River,
Remote Sensing,
UAV imagery,
USGS Science Data Catalog (SDC),
USGS:65677123d34e17319ded0a33,
aeolian,
aerial photography,
bare sand,
biocrust sand,
biogeography,
biological soil crusts,
biota,
change detection,
climatologyMeteorologyAtmosphere,
data release,
disturbed,
dune field,
dune mobility,
dune surface,
elevation,
environment,
geomorphic change,
geomorphology,
gravel bar,
gravel deposits,
image collections,
imageryBaseMapsEarthCover,
in-field sediment transport data,
land use and land cover,
land use change,
planningCadastre,
remote sensing,
repeat surveys,
sediment transport,
topographic differences,
topographic surveys,
topography,
unconsolidated deposits,
unoccupied aerial vehicle imagery,
vegetated sand,
vegetation,
wind,
wind strength,
woody vegetation, Fewer tags
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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