The streets of Hallowell, Maine, were flooded following heavy rains that hit New England and most of the East Coast, December 18, 2023. USGS photo by Glenn Hodgkins
Glenn Hodgkins
Glenn Hodgkins is a Research Hydrologist with the New England Water Science Center.
Glenn's work in recent years has focused on statistical hydrology at the regional, national, and international scale, primarily on the analysis of change and variability of historical streamflow and groundwater, and also on probabilistic forecasting and model evaluation. Glenn is the lead author or co-author on 28 peer-reviewed articles in hydrology and climate journals and 31 USGS scientific reports.
Science and Products
Long-Term Data Collection Provides Insight to Changes in Water Resources in New England
Primarily through the efforts of Glenn Hodgkins and Robert Dudley, the New England Water Science Center has been studying historical changes in streamflows, groundwater levels, and lake ice in New England and across the country for 20 years. Glenn and Rob have analyzed a wealth of historical data, including 100+ years of streamflow data and 150+ years of lake-ice data at some locations...
The Influence of Climatic, Watershed, and Water-use Changes on Extreme Low Streamflows in the United States
Extreme low streamflows impact water availability for human systems and ecosystems. Numerous researchers have analyzed trends in low streamflows in the U.S. There is no known published work, however, on historical trends over time in the most extreme low streamflows—the flows with the largest impacts on human systems and ecosystems. The current study attempts to fill this gap. The wealth of...
The Influence of Climatic changes on Extreme Streamflows in the United States
Hydrologic droughts and floods can have severe impacts on river infrastructure, water supply, and ecosystem functioning.
Trend Reproduction
As part of the National Water Budget Project, our objective is to quantify how well observed trends are simulated.
Hydrologic Climate Change Indicators
Background Streams and rivers are an important environmental resource and provide water for many human needs. Streamflow is a measure of the volume of water carried by rivers and streams. Changes in streamflow can directly influence the supply of water available for human consumption, irrigation, generating electricity, and other needs. In addition, many plants and animals depend on streamflow
Webinar: Historical Trends in Summer Precipitation, Baseflows, and Stormflows in New England and Projections of Seasonal Streamflows for Coastal Streams in Maine
Check out this webinar for more information on influencing water flow in Maine rivers and streams.
Impact of Changes in Streamflow and Temperature on Endangered Atlantic Salmon
Coastal rivers draining into the Gulf of Maine are home to the endangered Gulf of Maine Distinct Population Segment of Atlantic salmon. The Gulf of Maine population began to decline significantly by the late 19th century, leading to the closure of the commercial Atlantic salmon fishery in 1948. In recent years, populations have again begun to decrease again. State and federal fisheries biologists
Hallowell, Maine flood
The streets of Hallowell, Maine, were flooded following heavy rains that hit New England and most of the East Coast, December 18, 2023. USGS photo by Glenn Hodgkins
Kennebec River in Maine during flood
Photo taken in Hallowell, Maine on December 19, 2023, following a powerful rainstorm.
Photo taken in Hallowell, Maine on December 19, 2023, following a powerful rainstorm.
Ducktrap River, Maine at Winter and Spring Flows
Streamflow in the Ducktrap River, coastal Maine, showing typical winter low flow (March 2005) and typical spring high flow (April 2005). Pictures taken by Glenn Hodgkins, USGS.
Streamflow in the Ducktrap River, coastal Maine, showing typical winter low flow (March 2005) and typical spring high flow (April 2005). Pictures taken by Glenn Hodgkins, USGS.
Ducktrap River, Maine in April 2005
Streamflow in the Ducktrap River, coastal Maine, showing typical spring high flow in April 2005.
Streamflow in the Ducktrap River, coastal Maine, showing typical spring high flow in April 2005.
Ducktrap River, Maine in March 2005
Streamflow in the Ducktrap River, coastal Maine, showing typical winter low flow, March 2005.
Streamflow in the Ducktrap River, coastal Maine, showing typical winter low flow, March 2005.
Science and Products
Long-Term Data Collection Provides Insight to Changes in Water Resources in New England
Primarily through the efforts of Glenn Hodgkins and Robert Dudley, the New England Water Science Center has been studying historical changes in streamflows, groundwater levels, and lake ice in New England and across the country for 20 years. Glenn and Rob have analyzed a wealth of historical data, including 100+ years of streamflow data and 150+ years of lake-ice data at some locations...
The Influence of Climatic, Watershed, and Water-use Changes on Extreme Low Streamflows in the United States
Extreme low streamflows impact water availability for human systems and ecosystems. Numerous researchers have analyzed trends in low streamflows in the U.S. There is no known published work, however, on historical trends over time in the most extreme low streamflows—the flows with the largest impacts on human systems and ecosystems. The current study attempts to fill this gap. The wealth of...
The Influence of Climatic changes on Extreme Streamflows in the United States
Hydrologic droughts and floods can have severe impacts on river infrastructure, water supply, and ecosystem functioning.
Trend Reproduction
As part of the National Water Budget Project, our objective is to quantify how well observed trends are simulated.
Hydrologic Climate Change Indicators
Background Streams and rivers are an important environmental resource and provide water for many human needs. Streamflow is a measure of the volume of water carried by rivers and streams. Changes in streamflow can directly influence the supply of water available for human consumption, irrigation, generating electricity, and other needs. In addition, many plants and animals depend on streamflow
Webinar: Historical Trends in Summer Precipitation, Baseflows, and Stormflows in New England and Projections of Seasonal Streamflows for Coastal Streams in Maine
Check out this webinar for more information on influencing water flow in Maine rivers and streams.
Impact of Changes in Streamflow and Temperature on Endangered Atlantic Salmon
Coastal rivers draining into the Gulf of Maine are home to the endangered Gulf of Maine Distinct Population Segment of Atlantic salmon. The Gulf of Maine population began to decline significantly by the late 19th century, leading to the closure of the commercial Atlantic salmon fishery in 1948. In recent years, populations have again begun to decrease again. State and federal fisheries biologists
Hallowell, Maine flood
The streets of Hallowell, Maine, were flooded following heavy rains that hit New England and most of the East Coast, December 18, 2023. USGS photo by Glenn Hodgkins
The streets of Hallowell, Maine, were flooded following heavy rains that hit New England and most of the East Coast, December 18, 2023. USGS photo by Glenn Hodgkins
Kennebec River in Maine during flood
Photo taken in Hallowell, Maine on December 19, 2023, following a powerful rainstorm.
Photo taken in Hallowell, Maine on December 19, 2023, following a powerful rainstorm.
Ducktrap River, Maine at Winter and Spring Flows
Streamflow in the Ducktrap River, coastal Maine, showing typical winter low flow (March 2005) and typical spring high flow (April 2005). Pictures taken by Glenn Hodgkins, USGS.
Streamflow in the Ducktrap River, coastal Maine, showing typical winter low flow (March 2005) and typical spring high flow (April 2005). Pictures taken by Glenn Hodgkins, USGS.
Ducktrap River, Maine in April 2005
Streamflow in the Ducktrap River, coastal Maine, showing typical spring high flow in April 2005.
Streamflow in the Ducktrap River, coastal Maine, showing typical spring high flow in April 2005.
Ducktrap River, Maine in March 2005
Streamflow in the Ducktrap River, coastal Maine, showing typical winter low flow, March 2005.
Streamflow in the Ducktrap River, coastal Maine, showing typical winter low flow, March 2005.