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Drought is a serious environmental threat across the United States. Climate change exacerbates droughts by making them more frequent, longer, and more severe. The USGS works with state and federal partners to study, monitor, and help mitigate drought impacts across the U.S. now and into the future.
Check out the USGS Drought Website to see up-to-date news, science, and publications on drought and water supply.
The USGS Water Science School teaches people of all ages about water! Check out some of their pages related to drought, groundwater, and water management to understand the effects of climate-induced droughts on human communities.
Defining drought may seem easy. If an area receives less rain or snow than expected over the course of a year, it can be classified as being in drought. The severity of drought increases over time depending on how long an area remains arid. However, there’s more to the story than solely if there isn’t enough rain or snow.
Droughts don’t just affect water stored in wetlands, lakes, and rivers, but also water below ground stored in aquifers and in the soil. When this groundwater gets used up, the dry ground can act like a sponge, sucking surface water straight in. The surface water-groundwater relationship gets even more complicated with snowpack. If snow melts too early in the year, water can move through the environment too quickly, causing the ground to dry up and become “thirsty” too soon. So even if there is “enough” water, the timing of the water may dictate whether an area is in a drought.
Climate change has further altered the natural pattern of droughts, making them more frequent, longer, and more severe. Since 2000, the western United States is experiencing some of the driest conditions on record. The southwestern U.S., in particular, is going through an unprecedented period of extreme drought. This will have lasting impacts on the environment and those who rely on it.
The USGS employs its wide range of scientific expertise to study how droughts affect human and natural communities and how to effectively predict, prepare for, manage, and recover from water shortages. USGS research spans geographic and temporal scales, exploring everything from short, local “flash” droughts to long-term, large-scale “mega” droughts.
Our science helps to:
The USGS actively coordinates our drought research efforts among our many diverse scientists. Experts like water scientists, wildlife biologists, and geologists all work together to study droughts and their impacts. This effort strengthens our existing observation networks by investing in real-time data collection on rainfall, stream flows, and environmental impacts. With these improved data sets, USGS scientists are working to better understand when and how droughts occur. We are also developing models to help predict which communities and landscapes may be vulnerable to future droughts, as well as when, how long, and how severe those droughts might be. We provide this information to help cities and natural resource managers develop plans to prepare for future droughts and lessen the impacts of droughts on natural and human communities.
Do Droughts Affect Groundwater Quality? A California Story
By Zeno Levy, USGS Research Geologist
Do Droughts Affect Groundwater Quality? A California Story
By Zeno Levy, USGS Research Geologist
If you want to know how much rain fell yesterday, you can catch it and measure it. Water vapor? That's not so easy. Which is a problem if you want to know how quickly that rate is returning to the atmosphere. Water vapor is the single largest part of the water budget, but without space-based observations, it would be all but impossible to measure at wide scale.
If you want to know how much rain fell yesterday, you can catch it and measure it. Water vapor? That's not so easy. Which is a problem if you want to know how quickly that rate is returning to the atmosphere. Water vapor is the single largest part of the water budget, but without space-based observations, it would be all but impossible to measure at wide scale.
This year is the 150th Anniversary of John Wesley Powell’s expedition to explore the Colorado River, a 1,450-mile long waterway that runs through the Western United States and into Mexico.
This year is the 150th Anniversary of John Wesley Powell’s expedition to explore the Colorado River, a 1,450-mile long waterway that runs through the Western United States and into Mexico.
Comal Springs, one of the largest springs in Texas, ran dry during the 2013 drought
Comal Springs, one of the largest springs in Texas, ran dry during the 2013 drought
It’s easy enough to measure rainfall, and nearly as easy to measure streamflow. Calculating the efficiency of water use through the metric of evapotranspiration (ET) – evaporation off the Earth’s surface and transpiration from the leaves of plants – is a far trickier proposal.
It’s easy enough to measure rainfall, and nearly as easy to measure streamflow. Calculating the efficiency of water use through the metric of evapotranspiration (ET) – evaporation off the Earth’s surface and transpiration from the leaves of plants – is a far trickier proposal.
This webinar presentation was conducted as part of the Climate Change Science and Management Webinar Series, hosted in partnership by the USGS National Climate Change and Wildlife Science Center and the FWS National Conservation Training Center.
This webinar presentation was conducted as part of the Climate Change Science and Management Webinar Series, hosted in partnership by the USGS National Climate Change and Wildlife Science Center and the FWS National Conservation Training Center.
This short video is one of a series of four total shorts highlighting USGS water science in California's Delta region. The Sacramento-San Joaquin Delta is the hub of the state's water system. Water quality touches on all aspects of life. Teams of U.S.
This short video is one of a series of four total shorts highlighting USGS water science in California's Delta region. The Sacramento-San Joaquin Delta is the hub of the state's water system. Water quality touches on all aspects of life. Teams of U.S.
Webinar Summary: The Wind River Reservation in west-central Wyoming is home of the Eastern Shoshone and Northern Arapaho Tribes. The reservation has experienced severe drought impacts on Tribal livelihoods and cultural activities in recent years.
Webinar Summary: The Wind River Reservation in west-central Wyoming is home of the Eastern Shoshone and Northern Arapaho Tribes. The reservation has experienced severe drought impacts on Tribal livelihoods and cultural activities in recent years.
Explore USGS research projects on drought and water availability under climate change.
Drought is a serious environmental threat across the United States. Climate change exacerbates droughts by making them more frequent, longer, and more severe. The USGS works with state and federal partners to study, monitor, and help mitigate drought impacts across the U.S. now and into the future.
Check out the USGS Drought Website to see up-to-date news, science, and publications on drought and water supply.
The USGS Water Science School teaches people of all ages about water! Check out some of their pages related to drought, groundwater, and water management to understand the effects of climate-induced droughts on human communities.
Defining drought may seem easy. If an area receives less rain or snow than expected over the course of a year, it can be classified as being in drought. The severity of drought increases over time depending on how long an area remains arid. However, there’s more to the story than solely if there isn’t enough rain or snow.
Droughts don’t just affect water stored in wetlands, lakes, and rivers, but also water below ground stored in aquifers and in the soil. When this groundwater gets used up, the dry ground can act like a sponge, sucking surface water straight in. The surface water-groundwater relationship gets even more complicated with snowpack. If snow melts too early in the year, water can move through the environment too quickly, causing the ground to dry up and become “thirsty” too soon. So even if there is “enough” water, the timing of the water may dictate whether an area is in a drought.
Climate change has further altered the natural pattern of droughts, making them more frequent, longer, and more severe. Since 2000, the western United States is experiencing some of the driest conditions on record. The southwestern U.S., in particular, is going through an unprecedented period of extreme drought. This will have lasting impacts on the environment and those who rely on it.
The USGS employs its wide range of scientific expertise to study how droughts affect human and natural communities and how to effectively predict, prepare for, manage, and recover from water shortages. USGS research spans geographic and temporal scales, exploring everything from short, local “flash” droughts to long-term, large-scale “mega” droughts.
Our science helps to:
The USGS actively coordinates our drought research efforts among our many diverse scientists. Experts like water scientists, wildlife biologists, and geologists all work together to study droughts and their impacts. This effort strengthens our existing observation networks by investing in real-time data collection on rainfall, stream flows, and environmental impacts. With these improved data sets, USGS scientists are working to better understand when and how droughts occur. We are also developing models to help predict which communities and landscapes may be vulnerable to future droughts, as well as when, how long, and how severe those droughts might be. We provide this information to help cities and natural resource managers develop plans to prepare for future droughts and lessen the impacts of droughts on natural and human communities.
Do Droughts Affect Groundwater Quality? A California Story
By Zeno Levy, USGS Research Geologist
Do Droughts Affect Groundwater Quality? A California Story
By Zeno Levy, USGS Research Geologist
If you want to know how much rain fell yesterday, you can catch it and measure it. Water vapor? That's not so easy. Which is a problem if you want to know how quickly that rate is returning to the atmosphere. Water vapor is the single largest part of the water budget, but without space-based observations, it would be all but impossible to measure at wide scale.
If you want to know how much rain fell yesterday, you can catch it and measure it. Water vapor? That's not so easy. Which is a problem if you want to know how quickly that rate is returning to the atmosphere. Water vapor is the single largest part of the water budget, but without space-based observations, it would be all but impossible to measure at wide scale.
This year is the 150th Anniversary of John Wesley Powell’s expedition to explore the Colorado River, a 1,450-mile long waterway that runs through the Western United States and into Mexico.
This year is the 150th Anniversary of John Wesley Powell’s expedition to explore the Colorado River, a 1,450-mile long waterway that runs through the Western United States and into Mexico.
Comal Springs, one of the largest springs in Texas, ran dry during the 2013 drought
Comal Springs, one of the largest springs in Texas, ran dry during the 2013 drought
It’s easy enough to measure rainfall, and nearly as easy to measure streamflow. Calculating the efficiency of water use through the metric of evapotranspiration (ET) – evaporation off the Earth’s surface and transpiration from the leaves of plants – is a far trickier proposal.
It’s easy enough to measure rainfall, and nearly as easy to measure streamflow. Calculating the efficiency of water use through the metric of evapotranspiration (ET) – evaporation off the Earth’s surface and transpiration from the leaves of plants – is a far trickier proposal.
This webinar presentation was conducted as part of the Climate Change Science and Management Webinar Series, hosted in partnership by the USGS National Climate Change and Wildlife Science Center and the FWS National Conservation Training Center.
This webinar presentation was conducted as part of the Climate Change Science and Management Webinar Series, hosted in partnership by the USGS National Climate Change and Wildlife Science Center and the FWS National Conservation Training Center.
This short video is one of a series of four total shorts highlighting USGS water science in California's Delta region. The Sacramento-San Joaquin Delta is the hub of the state's water system. Water quality touches on all aspects of life. Teams of U.S.
This short video is one of a series of four total shorts highlighting USGS water science in California's Delta region. The Sacramento-San Joaquin Delta is the hub of the state's water system. Water quality touches on all aspects of life. Teams of U.S.
Webinar Summary: The Wind River Reservation in west-central Wyoming is home of the Eastern Shoshone and Northern Arapaho Tribes. The reservation has experienced severe drought impacts on Tribal livelihoods and cultural activities in recent years.
Webinar Summary: The Wind River Reservation in west-central Wyoming is home of the Eastern Shoshone and Northern Arapaho Tribes. The reservation has experienced severe drought impacts on Tribal livelihoods and cultural activities in recent years.
Explore USGS research projects on drought and water availability under climate change.
