Skip to main content
U.S. flag

An official website of the United States government

Land and Water Resource Change

WAWSC activities related to ​l​ and ​water ​r​esource ​change provide unbiased science and tools ​to evaluate, predict, and plan for the effects of climate and land use changes on all components of the hydrologic system including aquatic ecosystems. A particular focus is on long-term monitoring of the annual accumulation, ablation, and net glacier mass balance at South Cascade Glacier, and comparing these results to other glaciers in different climate regimes. The implications for changes in snowpack and glacier melt are vast and include the availability of water for agricultural irrigation, increased wildfire susceptibility from reduced soil moisture, and diminished cold water contributions from snow and glacier melt that may affect stream temperatures.

Filter Total Items: 14

Analysis of USGS Surface Water Monitoring Networks

The issue: National interests in water information are important but challenging to incorporate into planning and operation of a monitoring network driven by local information needs. These interests include an understanding of the spatial variability in water availability across the United States, anthro-physical factors including climate and land use that affect water availability, and federal...
link

Analysis of USGS Surface Water Monitoring Networks

The issue: National interests in water information are important but challenging to incorporate into planning and operation of a monitoring network driven by local information needs. These interests include an understanding of the spatial variability in water availability across the United States, anthro-physical factors including climate and land use that affect water availability, and federal...
Learn More

Assess the utility of a regional aquifer system groundwater model to inform the USGS National Hydrologic Model

The Issue: In Washington State, groundwater (GW) inflow to streams, or baseflow, is essential for maintaining aquatic habitats, and for out-of-stream uses such as irrigated agriculture during the typically dry summers. However, the National Hydrologic Model (NHM) currently is most suited to predicting total daily streamflow. This project aims to assess the NHM’s performance in simulating baseflow...
link

Assess the utility of a regional aquifer system groundwater model to inform the USGS National Hydrologic Model

The Issue: In Washington State, groundwater (GW) inflow to streams, or baseflow, is essential for maintaining aquatic habitats, and for out-of-stream uses such as irrigated agriculture during the typically dry summers. However, the National Hydrologic Model (NHM) currently is most suited to predicting total daily streamflow. This project aims to assess the NHM’s performance in simulating baseflow...
Learn More

Coarse sediment delivery and routing in the White River

The Issue: Ongoing channel aggradation has reduced flow conveyance along the lower White River, increasing the flood risk in urban-suburban areas. A refined understanding of the delivery, transport and deposition of sediment in the White River, and how those processes may be influenced by climate and existing dam operations, is necessary in order to plan for future flood hazard in the lower White...
link

Coarse sediment delivery and routing in the White River

The Issue: Ongoing channel aggradation has reduced flow conveyance along the lower White River, increasing the flood risk in urban-suburban areas. A refined understanding of the delivery, transport and deposition of sediment in the White River, and how those processes may be influenced by climate and existing dam operations, is necessary in order to plan for future flood hazard in the lower White...
Learn More

Sauk River Sediment

Fine-grained sediments in the lower reach of the Sauk River are adversely affecting the health and spawning of Chinook salmon. Climate change and forestry practices have been proposed as suspected causes of a reported increase in sediment loading to the river.To determine the amount and timing of suspended-sediment loading to the river and possible connections to adverse effects on Chinook salmon...
link

Sauk River Sediment

Fine-grained sediments in the lower reach of the Sauk River are adversely affecting the health and spawning of Chinook salmon. Climate change and forestry practices have been proposed as suspected causes of a reported increase in sediment loading to the river.To determine the amount and timing of suspended-sediment loading to the river and possible connections to adverse effects on Chinook salmon...
Learn More

Glaciers and Snowpack

Glaciers, snow, and ice sheets are important components of the Earth's water and climate. They respond to and indicate changes in climate, as well as exerting an influence on global and regional climate. They also have an effect on water resources, serving as natural reservoirs. Measuring changes in the size and volume of glaciers and snowpacks provides one direct way of knowing what kind of...
link

Glaciers and Snowpack

Glaciers, snow, and ice sheets are important components of the Earth's water and climate. They respond to and indicate changes in climate, as well as exerting an influence on global and regional climate. They also have an effect on water resources, serving as natural reservoirs. Measuring changes in the size and volume of glaciers and snowpacks provides one direct way of knowing what kind of...
Learn More

RRAWFLOW: Rainfall-Response Aquifer and Watershed Flow Model

RRAWFLOW: Rainfall-Response Aquifer and Watershed Flow Model
link

RRAWFLOW: Rainfall-Response Aquifer and Watershed Flow Model

RRAWFLOW: Rainfall-Response Aquifer and Watershed Flow Model
Learn More

Regional Stormwater Monitoring Program Sampling

The Issue: The State of Washington issues Municipal Stormwater Permits to local governments in the Puget Sound region that require them to develop and implement a stormwater management program that reduces the discharge of pollutants and protects the quality of water in rivers, streams, lakes and Puget Sound. The permitees in partnership with the State need to measure whether water quality and...
link

Regional Stormwater Monitoring Program Sampling

The Issue: The State of Washington issues Municipal Stormwater Permits to local governments in the Puget Sound region that require them to develop and implement a stormwater management program that reduces the discharge of pollutants and protects the quality of water in rivers, streams, lakes and Puget Sound. The permitees in partnership with the State need to measure whether water quality and...
Learn More

Recharge and frozen ground in the PNW

The Issue: Seasonally frozen ground occurs over approximately one-third of the contiguous United States, and the extent and duration of frozen ground have been decreasing as a result of global warming. In semi-arid regions such as the Columbia Plateau and Snake River Plain in the Pacific Northwest, nearly all natural recharge occurs between October and March when intermittent or seasonal frozen...
link

Recharge and frozen ground in the PNW

The Issue: Seasonally frozen ground occurs over approximately one-third of the contiguous United States, and the extent and duration of frozen ground have been decreasing as a result of global warming. In semi-arid regions such as the Columbia Plateau and Snake River Plain in the Pacific Northwest, nearly all natural recharge occurs between October and March when intermittent or seasonal frozen...
Learn More

Consumptive Use

The Issue: Fresh groundwater withdrawals for irrigation from 66 principal aquifers in the United States comprised approximately three-fourths of total groundwater withdrawals in the year 2000. The magnitude of these withdrawals is certainly substantial but difficult to quantify because few states actually monitor groundwater withdrawals for irrigation. Water-resource managers are also interested...
link

Consumptive Use

The Issue: Fresh groundwater withdrawals for irrigation from 66 principal aquifers in the United States comprised approximately three-fourths of total groundwater withdrawals in the year 2000. The magnitude of these withdrawals is certainly substantial but difficult to quantify because few states actually monitor groundwater withdrawals for irrigation. Water-resource managers are also interested...
Learn More

White River Basin and Lake Tapps Water Quality

The Issue: Water diverted from the upper White River to maintain water levels in Lake Tapps impacts flows and fish resources in the White River. In the lower White River, releases of warm water from Lake Tapps for hydropower generation frequently lowered concentrations of dissolved oxygen and increased water temperatures at river mile 1.8. In the White River diversion reach, has segments that are...
link

White River Basin and Lake Tapps Water Quality

The Issue: Water diverted from the upper White River to maintain water levels in Lake Tapps impacts flows and fish resources in the White River. In the lower White River, releases of warm water from Lake Tapps for hydropower generation frequently lowered concentrations of dissolved oxygen and increased water temperatures at river mile 1.8. In the White River diversion reach, has segments that are...
Learn More

Potholes Reservoir

Managed by the U.S. Bureau of Reclamation (USBR), water is diverted from the Columbia River into Potholes Reservoir and the canal system for delivery to irrigators.Through the USGS/USBR collaborative Watershed and River Systems Management Program (WARSMP), the USBR will be developing a river-management model to improve the efficiency of water distribution. An important input needed for the model...
link

Potholes Reservoir

Managed by the U.S. Bureau of Reclamation (USBR), water is diverted from the Columbia River into Potholes Reservoir and the canal system for delivery to irrigators.Through the USGS/USBR collaborative Watershed and River Systems Management Program (WARSMP), the USBR will be developing a river-management model to improve the efficiency of water distribution. An important input needed for the model...
Learn More

PNW Tribal Water Resources Assessment

Native American Tribes in western Washington need comprehensive water data in order to protect, restore, and manage their water resources. To understand the factors affecting water quality and quantity on a regional scale, the data must be collected and managed through a systematic, coordinated approach.To help the Northwest Indian Fisheries Commission (NWIFC) to design a coordinated scientific...
link

PNW Tribal Water Resources Assessment

Native American Tribes in western Washington need comprehensive water data in order to protect, restore, and manage their water resources. To understand the factors affecting water quality and quantity on a regional scale, the data must be collected and managed through a systematic, coordinated approach.To help the Northwest Indian Fisheries Commission (NWIFC) to design a coordinated scientific...
Learn More