Skip to main content
Advanced Search

Filters: Tags: {"type":"Subject"} (X) > Types: OGC WMS Layer (X)

517 results (138ms)   

Filters
Date Range
Extensions
Types
Contacts
Categories
Tag Schemes
Tags (with Type=Subject )
View Results as: JSON ATOM CSV
thumbnail
Map of the risk of current fish habitat degradation of inland streams of the Central Midwest States.
thumbnail
The Lahontan Cutthroat Trout (Oncorhynchus clarki henshawi) is native to the Lahontan basin of northern Nevada, northeastern California, and southeastern Oregon. Like other native trout species, the Lahontan Cutthroat Trout is found in a wide variety of cold-water habitats including large terminal alkaline lakes, alpine lakes, slow meandering rivers, montane rivers, and small headwater tributary streams. They currently occupy only about 10 percent of their historic range primarily due to habitat fragmentation from dams and water diversions, changes in water flow patterns, loss of riparian and aquatic habitat quality, severe drought conditions, and the introduction of non-native trout species. One population in Walker...
thumbnail
The agricultural areas of the Mountain States have created a substantial drain on the water resources of this region. Northern Montana stands out as an area of very high risk for fish habitat degradation on the few streams and rivers in the area. This threatened area is principally comprised of row crops, such as wheat, barley, and alfalfa production, and cattle farms. Other areas of high risk of habitat degradation, such as southern Idaho and northeastern Colorado, correspond to areas with a high density of row crops, typically corn and wheat, cattle farms, alfalfa and potato (particularly in Idaho) production, and rangeland. Farms and ranches dependent on irrigation require large amounts of water diverted from...
thumbnail
The Sonoran Desert is the only place in the world where Saguaro cacti grow. It can take up to 100 years for a Saguaro cactus to grow an arm in areas of low precipitation. The Sonoran Desert receives more rainfall than any other desert, which is approximately 10 inches (25 centimeters) a year on average. In the 1800s, many people used the Gila River as a trail across Arizona. This trail became known as the Gila Trail. Arizona is large enough to fit all of New England plus the State of Pennsylvania inside of it. Arizona is the only State besides Hawai'i that does not observe Daylight Savings time. Santa Fe, New Mexico, is the highest capital city in the United States at almost 7,200 feet (2,286 meters) above sea level....
thumbnail
There are three designated megaregions in the Pacific Coast States: Southern California, with a population of 22.4 million; Northern California, with a population of 14.6 million; and Cascadia (from Vancouver, British Columbia to Eugene, Oregon), with a population of 8.4 million. These areas have enormous effects on both the inland and coastal aquatic habitats. Continual development increases areas of impervious surfaces (completely altering natural water flows and hydrology) and the amount of sewage discharge, sediments, and other pollutants associated with urbanization. Ever increasing urban water needs can be far reaching and affect systems and fish habitat far away from the urban areas. Los Angeles, which is...
thumbnail
Relative condition of fish habitat in streams of the Central Mississippi River States. Histogram shows percentage of total stream length in each condition class.
thumbnail
Michigan, Wisconsin, and Minnesota border four of the five Great Lakes (lakes Michigan, Superior, Huron, and Erie) and have over 150,000 miles of rivers and streams and 50,000 inland lakes within their boundaries. The upper Mississippi River flows through the Upper Midwest states, from its headwaters in Minnesota along the boundary between Minnesota and Wisconsin. Much of the region has deep glacial deposits which has a tremendous influence over the habitat types and water flow (hydrology), providing for some of the most stable river flows in the United States. An exception to the glaciated region is a unique region of deeply carved unglaciated river valleys known as “The Driftless Area” which located in southwestern...
thumbnail
A. Pervasive disturbances: The most common disturbances based on total stream length in a given region. Top five overall most pervasive disturbances to all stream reaches, regardless of stream size and across all spatial scales (ranked highest first): Crop land use Low intensity urban land use Pasture and hay land use Impervious surface cover Population density Top three most pervasive disturbances to creeks (watersheds <100 km 2 in area) across all spatial scales: Crop land use Low intensity urban land use Pasture and hay land use Top three most pervasive disturbances to rivers (watersheds >100 km 2 in area) across all spatial scales : Crop land use Impervious surface cover Pasture and hay land use Top...
thumbnail
Most of Alaska has an abundance of unaltered clean fresh water habitat that maintain remarkable self-sustaining fish populations requiring water flows in the proper amount at the right time. These habitats face an increasing number of demands. New hydroelectric projects, such as the recently proposed Susitna-Watana Hydroelectric Project, and the expansion of existing projects can, if not very carefully sited and designed, increase barriers to fish migration and create adverse hydrologic and sediment effects on streams that provide critical spawning and rearing habitat for self-sustaining salmon populations. These potential barriers are not just an issue for fish but the entire ecosystem as everything from trees...
thumbnail
Major cities, such as Detroit, Milwaukee, Minneapolis/St. Paul, and numerous smaller lakefront cities support a population of over 21 million people in the Upper Midwest area. Converting land to urban areas has reduced fish habitat through the filling of wetlands, altered rivers and streams to convey artificially-caused high-flow events through these areas, decreased the streams ability to meander, and has converted natural lake shorelines to bulkheads and seawalls. Many parcels of private land in the forested portions of this region: are being sold for development of subdivided vacation communities; have impoundments developed on free flowing streams to create “new” lakefront properties; and are seeing a rapid...
thumbnail
Relative condition of fish habitat in streams of the Mountain States. Histogram shows percentage of total stream length in each condition class.
thumbnail
While fish habitat was found to be generally to be at very low or low risk of degradation in this mostly arid western region of the United States, water availability (hydrology – a key fish habitat process and driver of fish habitat) could only be partly examined using the available datasets in this Assessment. The lack of information on the status of water flow in many basins has led them being overestimated in fish habitat quality, even if streams in these basins are actually dry most of year. Additionally, data availability for grazing intensity, another key landscape use, is also unavailable, and has also created situations where the Assessment overestimates habitat quality. Despite such absences, impairment...
thumbnail
Forty-three percent of the surface area of Alaska is wetlands. On a state-wide basis, less than 2 percent of all wetlands have been developed. However, in many developing areas and communities, wetlands may be the only land type available for development. In urbanized and developed areas of Alaska, such as the Anchorage Bowl, it is estimated that over half of the wetlands have been lost to transportation corridor construction, utility installation, buildings, and other development projects. Wetland loss fragments habitat and disrupts migration of fish that use wetlands as resting places on their lengthy migrations, and it is also critical rearing habitat for young salmon. Wetland loss is also linked to altered native...
Static flood inundation boundary extents were created along the entire shoreline of Lake Ontario in Cayuga, Jefferson, Monroe, Niagara, Orleans, Oswego, and Wayne Counties in New York by using recently acquired (2007, 2010, 2014, and 2017) light detection and ranging (lidar) data. The flood inundation maps, accessible through the USGS Flood Inundation Mapping Program website at https://www.usgs.gov/mission-areas/water-resources/science/flood-inundation-mapping-fim-program, depict estimates of the areal extent and water depth of shoreline flooding in 8 segments corresponding to adjacent water-surface elevations (stages) at 8 USGS lake gages on Lake Ontario. This item includes data sets for segment H - Lake Ontario...
thumbnail
The first Annual Report of the Long Term Resource Monitoring Program for the Upper Mississippi River System covers the period from September, 1986 through January 1989. The report includes: program activities information concerning cooperation between member states and agencies; a summary of the past year's data collection effort for water quality; deviations from the Operating Plan; critical paths and funding requirements through 1999; plans for the coming year, and; management of the Environmental Management Technical Center. Technical Center Staff are divided between Ecology and the Computerized River Information Center. Ecology is responsible for the analysis of significant resource problems and for long term...
thumbnail
The Middle East and North Africa (MENA) region is the most water-scarce region with only two percent of the global average annual rainfall, hence underground aquifers are the major source of water. The need to improve water productivity and increase aquifer storage and recovery (ASR) is driving the efforts for this acceleration of aquifer storage and recovery project. The objective was to model runoff in the study area using multi-source satellite data and identify regions of runoff retention and recharge. Daily runoff is simulated using a saturation excess principle with the VegET model (Senay 2008). It is a spatially explicit (500m grid cell), one-dimensional root-zone water balance model that is driven by precipitation,...
CONUS-wide actual ET (ETa) from Landsat thermal imagery-using the Operational Simplified Surface Energy Balance (SSEBop) model (version 4) in the Google Earth Engine (GEE) cloud computing platform. Over 150,000 Landsat satellite images were used to produce 10 years of annual ETa (2010-2019).
map background search result map search result map First annual report of the Long Term Resource Monitoring Program for the Upper Mississippi River System Papel hidrológico-ambiental de pastizales nativos e introducidos en la cuenca alta del río Chuvíscar, Chihuahua, México Central Midwest States - Risk of Current Fish Habitat Degradation Map Central Mississippi River States - Risk of Current Degradation Chart (Stream Length) Description of Urban Land Use as a Human Activity Affecting Fish Habitat in Pacific Coast States Habitat Trouble for Lahontan Cutthroat Trout in Southwestern States Summary of Scientific Findings for Upper Midwest States Central Mississippi River States - Risk of Current Fish Habitat Degradation Map Most Pervasive and Severe Disturbances for the Central Midwest States Description of Competing Freshwater Demands as a Human Activity Affecting Fish Habitat in Alaska Hawaii - Risk of Current Fish Habitat Degradation Map Mountain States - Risk of Current Degradation Chart (Stream Length) Summary of Scientific Findings for Mountain States Description of Urban Land Use as a Human Activity Affecting Fish Habitat in Alaska Description of Urban Land Use as a Human Activity Affecting Fish Habitat in Upper Midwest States Description of Agriculture as a Human Activity Affecting Fish Habitat in Mountain States Facts About Southwestern States Modeling accumulated surface runoff and water availability for aquifer storage and recovery in the MENA region from 1984-2015 Segment H - Flood inundation map geospatial datasets for Lake Ontario, New York Annual SSEBop ET rasters at Landsat scale from 2010-2019 for the CONUS Papel hidrológico-ambiental de pastizales nativos e introducidos en la cuenca alta del río Chuvíscar, Chihuahua, México Segment H - Flood inundation map geospatial datasets for Lake Ontario, New York Modeling accumulated surface runoff and water availability for aquifer storage and recovery in the MENA region from 1984-2015 First annual report of the Long Term Resource Monitoring Program for the Upper Mississippi River System Central Midwest States - Risk of Current Fish Habitat Degradation Map Central Mississippi River States - Risk of Current Degradation Chart (Stream Length) Central Mississippi River States - Risk of Current Fish Habitat Degradation Map Summary of Scientific Findings for Upper Midwest States Description of Urban Land Use as a Human Activity Affecting Fish Habitat in Upper Midwest States Description of Urban Land Use as a Human Activity Affecting Fish Habitat in Pacific Coast States Habitat Trouble for Lahontan Cutthroat Trout in Southwestern States Facts About Southwestern States Mountain States - Risk of Current Degradation Chart (Stream Length) Summary of Scientific Findings for Mountain States Description of Agriculture as a Human Activity Affecting Fish Habitat in Mountain States Hawaii - Risk of Current Fish Habitat Degradation Map Description of Competing Freshwater Demands as a Human Activity Affecting Fish Habitat in Alaska Description of Urban Land Use as a Human Activity Affecting Fish Habitat in Alaska Annual SSEBop ET rasters at Landsat scale from 2010-2019 for the CONUS