Climate Change

Lake and impoundment levels are used for calculating a drought severity index.

The U.S. Geological Survey (USGS), in cooperation with the Massachusetts Department of Environmental Protection (MassDEP), is investigating the effects of sea-level rise and climate change on the groundwater resources of Martha’s Vineyard, Massachusetts.

The Groundwater Index in the Massachusetts Drought Management Plan provides a general overview of groundwater levels relative to long-term groundwater levels in Massachusetts. The methods used to compute the Groundwater Index were revised for the 2019 version of the Drought Management Plan. The 2019 plan aligns the drought categories and specifies the drought status from select percentile ranges...

Communities across Massachusetts may face potential consequences of climate change, ranging from more extreme rainfall to more pronounced and frequent droughts. Climate change could alter the state’s hydrology in potentially complex and unanticipated ways. Typical approaches for projecting hydrologic risk under climate change can misrepresent and underestimate the variability of climate and...

The term environmental streamflows refers to the magnitude, frequency, seasonal timing, duration, and rate of change of streamflows needed to sustain freshwater and estuary ecosystems and human wellbeing. It is important that environmental streamflow assessments by water managers consider changes in climate, land use, and water management; this cannot be done effectively without understanding...

2018 Nor’easters in Coastal Massachusetts

On August 28, 2011 Tropical Storm Irene made landfall in New England, leading to coastal storm surge, significant riverine flooding, sediment transport to Long Island Sound, and major infrastructure damage and destruction. Ten years later, the USGS New England Water Science Center looks back at Irene, the data collected by our Center during the event, the response by our employees before, during...

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 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.

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.

The Merrimack River watershed, the 4th largest watershed in New England (Massachusetts Executive Office of Environmental Affairs, 2001), has seen substantial growth and development in recent years.

Droughts are one of the most expensive and damaging 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.