Hydrographic Surveys

The Hydrologic Monitoring Branch (HMB) provides water data for all six New England states through an expansive network of monitoring locations. The HMB is responsible for a wide range of hydrologic monitoring activities, including collecting and analyzing streamflow, groundwater and coastal water levels, precipitation, and continuous water-quality information, such as water temperature and...

The Applied Hydrology Branch provides hydrologic data, research, and tools to water resource managers, stakeholders and policy makers that inform critical water management decisions throughout New England. This branch is divided into the Hydrology and Hydraulics Section, Water Quality Networks Section, Connecticut Water Quality Monitoring Section, and Massachusetts/Rhode Island Water Quality...

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.

FEMA has requested USGS expertise in hydraulics, hydrology, and mapping to generate flood insurance maps for New England.

Currently, there are 16 designated rivers in New Hampshire in need of daily mean streamflow estimates for managing instream flows. Many of New Hampshire’s Designated Rivers have current and/or historical streamflow data that may be used to extend an existing streamgages streamflow record in time through record extension techniques. Evaluating the feasibility of record extension techniques to...

The purpose of this work is to better understand the effects of dam removal on local hydraulics, fish passage, and flooding. This study is part of a larger effort to monitor ecological resilience changes at nine Hurricane Sandy coastal resiliency aquatic connectivity restoration projects. It will contribute crucial knowledge that will be used to improve aquatic connectivity system cost...

Hydrologic droughts and floods can have severe impacts on river infrastructure, water supply, and ecosystem functioning.

The flood-frequency characteristics for streamgages and regression equations for estimating flood magnitudes have been published.

As part of the National Water Budget Project, our objective is to quantify how well observed trends are simulated.