2026 Alan D. Howard: Earth Science Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Earth Science	70	975	858	461	391	327	17953

Discipline name

D-Index

World Ranking

Current World Ranking

National Ranking

Current National Ranking

Publications

Citations

Earth Science

975

858

461

391

327

17953

Research.com Recognitions

1997 - Fellow of American Geophysical Union (AGU)

Overview

Alan D. Howard was affiliated with the University of Virginia in the United States. Their research career focused on the intersection of physics, astronomy, and earth and planetary sciences, contributing to a range of subjects within these fields.

The main fields of study in Howard's work included Physics and Astronomy and Earth and Planetary Sciences. Subfields explored were Astronomy and Astrophysics, Atmospheric Science, Earth-Surface Processes, Soil Science, and Industrial and Manufacturing Engineering.

Howard's research topics covered various domains, with a strong emphasis on Planetary Science and Exploration, Geology and Paleoclimatology Research, and Astro and Planetary Science. Other topics included Aeolian processes and effects, Soil erosion and sediment transport, Paleontology and Stratigraphy of Fossils, and Landslides and related hazards.

Several papers published by Howard illustrate the scope and focus of their work:

The Global Distribution of Craters With Alluvial Fans and Deltas on Mars, 2021, Geophysical Research Letters
Century scale rainfall in the absolute Atacama Desert: Landscape response and implications for past and future rainfall, 2021, Quaternary Science Reviews
The global distribution and morphologic characteristics of fan-shaped sedimentary landforms on Mars, 2022, Icarus
Responses of nitrogen transformation and dissolved oxygen in constructed wetland to biochar and earthworm amendment, 2020, Environmental Science and Pollution Research
Potential Caves: Inventory of Subsurface Access Points on the Surface of Titan, 2022, Journal of Geophysical Research Planets

Frequent publication venues for Howard's work included:

Abstracts with programs - Geological Society of America
Icarus
Geophysical Research Letters
Transplantation and Cellular Therapy
arXiv (Cornell University)

Howard collaborated regularly with a number of coauthors over the course of their career. Those with the highest frequency of collaboration were:

Sharon A. Wilson
Alexander M. Morgan
O. L. White
J. M. Moore
W. E. Dietrich

Alan D. Howard was recognized as a Fellow of the American Geophysical Union (AGU) in 1997.

Best Publications

A detachment-limited model of drainage basin evolution

Alan D. Howard

1472
Citations
Channel changes in badlands

Alan D. Howard;Gordon Kerby

1133
Citations
Modeling fluvial erosion on regional to continental scales

Alan D. Howard;William E. Dietrich;Michele A. Seidl

965
Citations
The case for rainfall on a warm, wet early Mars

Robert A. Craddock;Alan D. Howard

616
Citations
The Pluto system: Initial results from its exploration by New Horizons.

S. A. Stern;F. Bagenal;K. Ennico;G. R. Gladstone

449
Citations
An Intense Terminal Epoch of Widespread Fluvial Activity on Early Mars: 2. Increased Runoff and Paleolake Development

Rossman P. Irwin;Alan D. Howard;Robert A. Craddock;Jeffrey M. Moore

389
Citations
Sufficient conditions for river meandering: A simulation approach

Alan D. Howard;Thomas R. Knutson

338
Citations
An intense terminal epoch of widespread fluvial activity on early Mars: 1. Valley network incision and associated deposits

Alan D. Howard;Jeffrey M. Moore;Rossman P. Irwin

325
Citations
Geomorphology of the Colorado River in the Grand Canyon

Alan Howard;Robert Dolan

306
Citations
Large alluvial fans on Mars

Jeffrey M. Moore;Alan D. Howard

272
Citations
The geology of Pluto and Charon through the eyes of New Horizons.

Jeffrey M. Moore;William B. McKinnon;John R. Spencer;Alan D. Howard

265
Citations
Long Profile Development of Bedrock Channels: Interaction of Weathering, Mass Wasting, Bed Erosion, and Sediment Transport

Alan D. Howard

265
Citations
Thresholds in River Regimes

Alan D. Howard

251
Citations
Can springs cut canyons into rock

Michael P. Lamb;Alan D. Howard;Joel Johnson;Kelin X. Whipple

235
Citations
Erosion of cohesionless sediment by groundwater seepage

Alan D. Howard;Charles F. McLane

232
Citations
Crater morphometry and modification in the Sinus Sabaeus and Margaritifer Sinus regions of Mars

Robert A. Craddock;Ted A. Maxwell;Alan D. Howard

231
Citations
BADLAND MORPHOLOGY AND EVOLUTION: INTERPRETATION USING A SIMULATION MODEL

Alan D. Howard

229
Citations
Theoretical model of optimal drainage networks

Alan D. Howard

227
Citations
Sand transport model of barchan dune equilibrium

A. D. Howard;J. B. Morton;Mohamed Gad-El-Hak;Deborah B. Pierce

218
Citations
Martian Layered Fluvial Deposits: Implications for Noachian Climate Scenarios

Jeffrey M. Moore;Alan D. Howard;William E. Dietrich;Paul M. Schenk

214
Citations

Frequent Co-Authors

Paul M. Schenk Lunar and Planetary Institute

Ross A. Beyer Ames Research Center

Jeffrey M. Moore Ames Research Center

Harold A. Weaver Johns Hopkins University Applied Physics Laboratory

William B. McKinnon Washington University in St. Louis

Francis Nimmo University of California, Santa Cruz

Tod R. Lauer National Science Foundation

William E. Dietrich University of California, Berkeley

Dale P. Cruikshank University of Central Florida

John A. Grant Smithsonian Institution

External Links

Personal website of Alan D. Howard

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