2026 Robert M. Hirsch: Environmental Sciences Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Environmental Sciences	47	5653	5421	2051	1899	117	29493

Robert M. Hirsch publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Robert M. Hirsch sits on this spectrum.

41 publications 687+

This scientist: 117 publications — 22nd percentile

22% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

Robert M. Hirsch D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Robert M. Hirsch sits on this spectrum.

30 D-Index 125+

This scientist: 47 D-Index — 42nd percentile

42% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Research.com Recognitions

1995 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

Robert M. Hirsch is affiliated with the United States Geological Survey in the United States. Their primary field of study is Environmental Science, with a focus on several subfields including Water Science and Technology, Environmental Chemistry, Global and Planetary Change, Health, Toxicology and Mutagenesis, and Nature and Landscape Conservation.

The scientist's research encompasses a range of topics related to hydrology and environmental processes. Key areas of study include Hydrology and Watershed Management Studies, Soil and Water Nutrient Dynamics, Fish Ecology and Management Studies, Flood Risk Assessment and Management, Mercury Impact and Mitigation Studies, Hydrology and Sediment Transport Processes, and Soil Erosion and Sediment Transport.

Robert M. Hirsch has contributed to multiple publications, with research appearing in various scientific venues. Frequent publication outlets include:

Water Resources Research
Ecological Indicators
Environmental Science & Technology
JAWRA Journal of the American Water Resources Association
Techniques and methods

Selected recent papers authored or coauthored by Hirsch include:

"Statistical methods in water resources" (2020), published in Techniques and methods
"Substantial Declines in Salinity Observed Across the Upper Colorado River Basin During the 20th Century, 1929-2019" (2021), published in Water Resources Research
"Lake Erie tributary nutrient trend evaluation: Normalizing concentrations and loads to reduce flow variability" (2021), published in Ecological Indicators
"The Occurrence of Large Floods in the United States in the Modern Hydroclimate Regime: Seasonality, Trends, and Large-Scale Climate Associations" (2022), published in Water Resources Research
"Spatial and Temporal Patterns of Low Streamflow and Precipitation Changes in the Chesapeake Bay Watershed" (2020), published in JAWRA Journal of the American Water Resources Association

Frequent collaborators in Hirsch's work include S. A. Archfield, Christine A. Rumsey, Olivia Miller, Thomas M. Marston, and David D. Susong.

In recognition of contributions to science, Robert M. Hirsch was awarded the status of Fellow of the American Association for the Advancement of Science (AAAS) in 1995.

Best Publications

Statistical methods in water resources

Dennis R. Helsel;Robert M. Hirsch

6204
Citations
Stationarity Is Dead: Whither Water Management?

P. C. D. Milly;Julio Betancourt;Malin Falkenmark;Robert M. Hirsch

5454
Citations
Techniques of trend analysis for monthly water quality data

Robert M. Hirsch;James R. Slack;Richard A. Smith

3866
Citations
A Nonparametric Trend Test for Seasonal Data With Serial Dependence

Robert M. Hirsch;James R. Slack

2181
Citations
Statistical methods in water resources

Dennis R. Helsel;Robert M. Hirsch;Karen R. Ryberg;Stacey A. Archfield

1131
Citations
SELECTION OF METHODS FOR THE DETECTION AND ESTIMATION OF TRENDS IN WATER QUALITY

Robert M. Hirsch;Richard B. Alexander;Richard A. Smith

760
Citations
Estimating constituent loads

Timothy A. Cohn;Lewis L. Delong;Edward J. Gilroy;Robert M. Hirsch

650
Citations
Weighted Regressions on Time, Discharge, and Season (WRTDS), with an Application to Chesapeake Bay River Inputs

Robert M. Hirsch;Douglas L. Moyer;Stacey A. Archfield

597
Citations
Monitoring and Understanding Changes in Heat Waves, Cold Waves, Floods, and Droughts in the United States: State of Knowledge

Thomas C. Peterson;Richard R. Heim;Robert Hirsch;Dale P. Kaiser

527
Citations
A Comparison of Four Streamflow Record Extension Techniques

Robert M. Hirsch

451
Citations
Statistical analysis of hydrologic data.

R. M. Hirsch;D. R. Helsel;T. A. Cohn;E. J. Gilroy

364
Citations
River chloride trends in snow-affected urban watersheds: increasing concentrations outpace urban growth rate and are common among all seasons.

Steven R. Corsi;Laura A. De Cicco;Michelle A. Lutz;Robert M. Hirsch

305
Citations
On Critiques of “Stationarity is Dead: Whither Water Management?”

Paul C.D. Milly;Julio L. Betancourt;Malin Falkenmark;Robert M. Hirsch

296
Citations
Nitrate in the Mississippi River and Its Tributaries, 1980 to 2008: Are We Making Progress?

Lori A. Sprague;Robert M. Hirsch;Brent T. Aulenbach

252
Citations
Has the magnitude of floods across the USA changed with global CO2 levels

Robert M. Hirsch;Karen R. Ryberg

249
Citations
METHODS OF FITTING A STRAIGHT LINE TO DATA: EXAMPLES IN WATER RESOURCES

Robert M. Hirsch;Edward J. Gilroy

225
Citations
User guide to Exploration and Graphics for RivEr Trends (EGRET) and dataRetrieval: R packages for hydrologic data

Robert M. Hirsch;Laura A. De Cicco

223
Citations
Concepts for a National Water-Quality Assessment Program

Robert M. Hirsch;William M. Alley;William G. Wilber

211
Citations
Mean square error of regression-based constituent transport estimates

E. J. Gilroy;R. M. Hirsch;T. A. Cohn

207
Citations
The influence of man on hydrologic systems

Robert M. Hirsch;John F. Walker;J. C. Day;Raimo Kallio

204
Citations

Frequent Co-Authors

Dennis P. Lettenmaier University of California, Los Angeles

David M. Wolock United States Geological Survey

Alberto Viglione Polytechnic University of Turin

Zbigniew W. Kundzewicz Potsdam Institute for Climate Impact Research

Russell S. Vose National Oceanic and Atmospheric Administration

Kenneth E. Kunkel North Carolina State University

Gabriele Villarini Princeton University

Donald J. Wuebbles University of Illinois at Urbana-Champaign

Malin Falkenmark Stockholm University

Thomas C. Peterson National Oceanic and Atmospheric Administration

External Links

Wikipedia of Robert M. Hirsch Personal website of Robert M. Hirsch

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