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Robert M. Lent (Former Employee)

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Flooding in Soldier Pond, Maine

New England Flood Information

The USGS delivers continuous streamflow, stage (water-level), and tide data to help emergency managers and other decision makers protect life and property caused by floods and other water-related hazards.
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New England Water Science Center
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New England Flood Information

The USGS delivers continuous streamflow, stage (water-level), and tide data to help emergency managers and other decision makers protect life and property caused by floods and other water-related hazards.
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Map of New England 7-day average streamflow conditions

New England Drought, 2020

Below average and infrequent rainfall from May through September 2020 led to an extreme hydrologic drought across much of New England, with some areas experiencing a flash (quick-onset) drought.
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New England Water Science Center
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New England Drought, 2020

Below average and infrequent rainfall from May through September 2020 led to an extreme hydrologic drought across much of New England, with some areas experiencing a flash (quick-onset) drought.
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Drought_icon

New England Drought Information

Droughts are among the most costly hydrologic hazards in the United States. They are generally slow in developing, frequently occur over a long period of time, and can affect large areas and populations. The severity of a hydrologic drought is not always obvious until these water supplies are seriously depleted.
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New England Water Science Center
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New England Drought Information

Droughts are among the most costly hydrologic hazards in the United States. They are generally slow in developing, frequently occur over a long period of time, and can affect large areas and populations. The severity of a hydrologic drought is not always obvious until these water supplies are seriously depleted.
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Climate Change Science Activities of the U.S. Geological Survey in New England

The U.S. Geological Survey (USGS) has actively pursued research in the effects of climate change on the hydrology of New England. Ongoing focus areas of climate change science activities of the USGS in New England include the following: • Hydrologic climate-response data (initiating or expanding long-term hydrologic climate-response data collection networks to detect and monitor climate-related ch
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Water Resources, New England Water Science Center

Framework for a hydrologic climate-response network in New England

Many climate-related hydrologic variables in New England have changed in the past century, and many are expected to change during the next century. It is important to understand and monitor these changes because they can affect human water supply, hydroelectric power generation, transportation infrastructure, and stream and riparian ecology. This report describes a framework for hydrologic monitor
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Water Resources, New England Water Science Center

The USGS National Streamflow Information Program and the importance of preserving long-term streamgages

Long-term streamflow information is critical for use in several water-related areas that are important to humans and wildlife, including water management, computation of flood and drought flows for water infrastructure, and analysis of climate-related trends. Specific uses are many and diverse and range from informing water rights across state and international boundaries to designing dams and bri
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Water Resources, Groundwater and Streamflow Information Program

Hydroclimatic regimes: a distributed water-balance framework for hydrologic assessment, classification, and management

Runoff-based indicators of terrestrial water availability are appropriate for humid regions, but have tended to limit our basic hydrologic understanding of drylands – the dry-subhumid, semiarid, and arid regions which presently cover nearly half of the global land surface. In response, we introduce an indicator framework that gives equal weight to humid and dryland regions, accounting fully for bo
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Water Resources, Groundwater and Streamflow Information Program, New England Water Science Center

Framework for a U.S. Geological Survey Hydrologic Climate-Response Program in Maine

This report presents a framework for a U.S. Geological Survey (USGS) hydrologic climate-response program designed to provide early warning of changes in the seasonal water cycle of Maine. Climate-related hydrologic changes on Maine's rivers and lakes in the winter and spring during the last century are well documented, and several river and lake variables have been shown to be sensitive to air-tem
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Water Resources, New England Water Science Center

Framework for a U.S. Geological Survey hydrologic climate-response program in Maine

It is important to monitor hydrologic systems in the United States that could change dramatically over the short term as a result of climate change. Many ecological effects of climate change can be understood only if hydrologic data networks are in place. Because of its humid, temperate climate and its substantial annual snowpack, Maine’s seasonal water cycle is sensitive to air temperature change
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Water Resources, New England Water Science Center

Coastal ecosystems and resources framework for science

Distribution and transport of total mercury and methylmercury in mercury-contaminated sediments in reservoirs and wetlands of the Sudbury River, east-central Massachusetts

Total mercury and methylmercury were measured in 4 reservoir cores and 12 wetland cores from Sudbury River. The distribution of total mercury and methylmercury in these cores was evaluated to determine the potential for total mercury and methylmercury transport from reservoir and wetlands sediments to the water column. Concentrations of methylmercury were corrected for an analytical artifact intro

Public-Water Supplies in Massachusetts and Rhode Island: Investigations of Processes Affecting Source-Water Quality

A history of lake-level fluctuations for Devils Lake, North Dakota, since the early 1800's

No abstract available.
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Water Resources, Dakota Water Science Center

Hydrologic indices for nontidal wetlands

Two sets of hydrologic indices were developed to characterize the water-budget components of nontidal wetlands. The first set consisted of six water-budget indices for input and output variables, and the second set consisted of two hydrologic interaction indices derived from the water-budget indices. The indices then were applied to 19 wetlands with previously published water-budget data. Two tril
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Water Resources, Dakota Water Science Center

Variations in surface-water quantity and quality as a result of the 1993 summer flood in the Devils Lake basin, North Dakota

Greater-than-normal precipitation during the summer of 1993 affected the hydrologic response and surface-water quality in the Devils Lake Basin. Large areas in the basin were flooded as a result of the precipitation, and water from these areas drained slowly through the chain of lakes into Devils Lake. This report summarizes the results of surface-water quantity and quality monitoring designed to
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Water Resources, Dakota Water Science Center

Pre-USGS Publications

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Maine Networks Section Spring Update

The Maine SW/GW (Surface-Water/Groundwater) Networks Section has been busy this spring- confirming our equipment is working properly after the winter...

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Potential drought conditions developing in New England

Recent surface-water, groundwater, and precipitation data indicate that drought conditions may presently be developing in parts of New England.

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Hydrologic Monitoring Program Highlights

Hydrologic Monitoring Program Highlights

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The New England WSC Hydrologic Monitoring Program - December 2020

The Hydrologic Monitoring Program (HMP) conducts hydrologic surveillance and investigation in all six New England States. 

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