Ensign Archives

Publication title with image of a mayfly

Interception of river sediment in estuaries revealed by microbial community source tracking

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February 16, 2026

Kan, J., and S.H. Ensign. 2026. Estuaries and Coasts 49, 55.

A small stream meanders through a Pennsylvania forest.

Small Streams Hold the Key to Healthy Rivers

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February 4, 2026

New state water quality report confirms Stroud Center science: restoring healthy rivers demands upstream focus.

Freshwater salinization syndrome is degrading streamwater quality in the National Capital Region national parks, USA

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January 14, 2026

Myers, D.T., D. Oviedo-Vargas, S. Ensign, M. Daniels, J.P. Schmit, M. Peipoch, and J. Kan. 2025. Freshwater Science, early online access.

Scott Ensign with Open-Source River Camera and Altimetry (ORCA) for measuring river flooding.

Open Source Hardware Solves Flood Monitoring Challenges

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January 7, 2026

Scientists and engineers at Stroud Water Research Center have developed a compact, inexpensive, and rapidly deployable tool for measuring river floods.

A decision-support framework for evaluating riverine sediment influence on U.S. tidal wetlands

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September 9, 2025

Halls, J.N., S.H. Ensign, and E.K. Peck. 2025. Remote Sensing 7(18): 3130.

Dave Montgomery collecting a water sample from White Clay Creek during Hurricane Isaias.

USGS Cuts to Water Resources Threaten Health and Safety

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August 5, 2025

River monitoring funding cuts are a problem not just for water scientists but for all Americans, because we all rely on and live near a river or stream.

Institute Profile: Stroud Water Research Center

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May 1, 2025

Ensign, S.H. 2025. Limnology and Oceanography Bulletin 34(2): 37–64.

WATER/ROOTS: Assessing and Supporting Stream Health

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March 7, 2025

Learn how to assess and support stream health with Scott Ensign, Ph.D., assistant director, vice president, and research scientist at Stroud Water Research Center.

Concentration-discharge relationships of chlorophyll describe the origin and fluxes of river algae across ecoregions

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March 6, 2025

Peipoch, M., M. Daniels, and S. Ensign. 2025. Freshwater Science 44(2): 143–158.

An EnviroDIY monitoring station next to a USGS gaging station on White Clay Creek near Avondale.

Is EnviroDIY Water Quality Data as Good as USGS?

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December 4, 2024

Researchers compared sensor accuracy, precision, and response under controlled conditions. Learn what the data shows.