CURRICULUM VITAE
Alan
Dighton Howard
January,
2005
PERSONAL HISTORY
Birthdate and Place:
Marital Status: Married to P.
Marlowe Howard, no children
ADDRESS
Home: Rt. 3,
(804)
823‑5532
Work: Department of
Environmental Sciences
Clark
Hall
(804)
924‑0563; FAX (804) 982‑2137;
EMAIL ah6p@Virginia.EDU
EDUCATION
B.S. Geology,
M.A. Geology,
Ph.D. Geography, The
PROFESSIONAL EXPERIENCE
Acting Assistant
Professor, Department of Geography,
University of Virginia, Charlottesville, Virginia, September 1968 ‑ June
1970.
Assistant Professor, Department of Environmental Sciences,
Associate Professor, Department of Environmental Sciences,
Professor, Department of Environmental Sciences,
PROFESSIONAL SOCIETIES
Fellow, American
Geophysical
Member, Geological
Society of
Fellow, National
Speleological Society
Member, Cave
Research Foundation
FUNDED RESEARCH AT THE
Evolution of
Drainage Basin Characteristics. Funded by NSF. Institutional Subgrant.
Erosion and
Sedimentation at a Borrow Pit near
Interpretation of
Surface Features and Surfaces Processes on Mars. Funded
by a NASA grant, 1970‑1980.
Changes in Fluvial
Deposits of the Colorado River, Research contract with National Park Service,
1974‑1976.
Quaternary Map of
Layered Deposits and
Paleoclimates. Funded by NASA grant, 1979‑198l.
Groundwater
Sapping: Processes and Landforms. Funded
by NASA grant 198l‑1988
Groundwater and
Permafrost Processes on Mars. Funded by NASA grant 1988‑1995.
Surface‑Atmosphere
Interactions. Funded by NASA grant 1991‑1993.
Biogeomorphology
Conference. Funded by NSF and U.S. Geological Survey
grants 1995.
Erosional Processes on Mars.
Funded by NASA grant
1995-continuing.
Mars Cratered Highlands Field Conference. Funded
by NASA grant, 1999-2001. Conference and
field trip held in October, 2001 (with Jeffrey Moore,
The Topography and
Basin Deposits of the Equatorial Highlands:
A MGS-Viking Synergistic Study. Funded by NASA grant, 1999-2005 (With Paul Schenk, Lunar
and Planetary Institute and Jeffrey Moore,
Predicting the Distribution and Properties of Buried
Submarine Topography on Continental Shelves, Funded by Office of Naval Research, 2000-2003 (with Patricia Wiberg,
James Syvitski, Scott Peckham, Neal Driscoll)
Noachian
Geomorphology as an Indicator of the Nature of the Early Martian Climate. Funded
by NASA grant, 2003-2006 (with Stephen Clifford and Micheal Carr).
REFEREED JOURNAL AND BOOK ARTICLES
1963 Howard,
A.D. The development of karst
features: National Speleological Society Bulletin, v. 25, p. 45‑65.
1964 Howard,
A.D. The model for cavern development
under artesian groundwater flow, with special reference to the
1964 Howard,
A.D. Processes of limestone cavern
development. International Journal of Speleology, v. l, p. 47‑60.
1965 Howard,
A.D. Geomorphological systems‑‑equilibrium
and dynamics. American Journal of Science, v. 263, p. 302‑3l2.
1966 Howard,
A.D. Verification of the
mishungskorrosion effect. Cave Notes, v. 8, p. 9‑l2.
1967 Howard, A.D.
and B.Y. Howard. Solution of limestone
under laminar flow beteen parallel boundaries.
Caves and Karst, v. 9, p. 25‑38.
1968 Howard,
A.D. Stratigraphic and structural
controls on landform development in the Central Kentucky Karst. National
Speleological Bulletin, v. 30, p. 95‑ll4.
1970 Howard,
A.D.,
197l Howard,
A.D. Simulation model of stream networks
by headward growth and branching. Geographical Analysis, v. 3, no. l, p. 29‑50.
197l Howard,
A.D. Simulation model of stream
capture. Geological Society of America Bulletin, vo. 82, no. 5, p. l355‑l376.
197l Howard,
A.D. Optimal angles of stream
junction: geometric, stability to
capture and minimum power criteria. Water Resources Research, v. 7, no. 4,
p. 863‑873.
197l Howard,
A.D. Quantitative measures of cave
patterns. Caves and Karst, v. l3, no. l, p. l‑7.
1972 Howard,
A.D. Problems of Interpretation of
Simulation Models of Geologic Processes, in Quantitative
Geomorphology: Some Aspects and
Applications. Morisawa, Marie, Ed.,
Publications in Geomorphology,
1974 Dolan, R.,
Howard, A.D., and Gallenson, A. Man's
impact on the
1977 Howard,
A.D. Effect of Slope on the Threshold of
Motion and its Application to Orientation of Wind Ripples. Geological
Society of
1977 Dolan, R.,
Hayden, B., Howard, A., and Johnson, R.
Environmental management of the
1978 Howard,
A.D., Morton, J.B., Gad‑el‑Hak, M., and Pierce, D.B. Sand Transport Model of Barchan Dune
Equilibrium. Sedimentology, v. 25, p. 307‑338.
1978 Howard,
A.D. Origin of the Stepped Topography of
the Martain Poles. Icarus, v. 34, p. 58l‑599.
1978 Dolan, R.,
Howard, A., Trimble, D. Structural control of the rapids and pools of the
1980 Howard,
A.D. Thresholds in river regime. in Coates, D.R. and Vitek, J.D., eds., The Concept of Geomorphic Thresholds,
Allen and Unwin,
198l Howard, A.
D., and Dolan, R. Geomorphology of the
1982a Howard,
A.D. Equilibrium and time scales in
geomorphology: Application to sand‑bed
alluvial channels. Earth Surface Processes, v.
7, p. 303‑325.
1982b Howard, A.D.,
Blasius, K.R., and Cutts, J.A. Photoclinometric determination of the topography
of the Martian north polar cap. Icarus, v. 50, p. 245‑258.
1982c Blasius,
K.R., Cutts, J.A., and Howard, A.D.
Topography and stratigraphy of Martian polar layered deposits, Icarus v. 50, p. 140‑160.
1982d Howard, A.D.,
Cutts, J.A., and Blasius, K.R.
Stratigraphic relationships within Martian polar cap deposits: Icarus,
v. 50, p. 161‑215.
1983 Howard, A.D.
and Kirby, G., Channel changes in
badlands. Geological Society of
1984 Howard, A.D.
and Knutson, T.R. Sufficient Conditions for River Meandering: A simulation approach: Water
Resources Research, v. 20, p. 1659‑1667.
1985 Kochel, R.C. Howard,
A.D., and McLane C., Channel networks developed
by groundwater sapping in fine‑grained sediments: Analogs to some Martian Valleys, in Woldenberg, M.A., ed., Models in Geomorphology, George Allen and Unwin, Boston, p. 313‑341.
1987 Howard, A.D.
et al., Quaternary Geologic Map of the
1987 Howard. A.
D., Modelling fluvial systems: rock, gravel and sand bed channels: in River Channels, edited by K. S.
Richards, Basil Blackwell,
1988 Howard, A.
D., Equilibrium models in geomorphology,
in Modelling Geomophological Systems,
edited by M.G. Anderson, New York, Wiley and Sons, Ch. 3, p. 49‑72.
1988 Howard, A.D.
and McLane, C.F., Erosion of cohesionless sediment by groundwater seepage, Water
Resources Research, v. 24, p. 1659-1674.
1990 Baker, V.
R., R. C. Kochel, J. E. Laity, and A. D. Howard, Spring sapping and valley
network development (subsection entitled "Case Study: Model studies of groundwater sapping" by
A. D. Howard), In Higgins, C.G., and D. R. Coates, editors, Groundwater Geomorphology; the role of subsurface water in
Earth-surface processes and landforms, Geological Society of Special Paper
252, p. 235‑266.
1990 Howard, A.
D., Theoretical model of optimal drainage networks: Water
Resources Research, vol. 26, p. 2107‑2117.
1990 Howard, A.
D., Role of hypsometry and planform in basin hydrologic response: Hydrological
Processes, vol. 4, p. 373‑385.
1991 Howard,
A.D., et al., Quaternary Geologic Map of the
1991 Howard, A.
D., and Hemberger, A.T., Multivariate
Characterization of Meandering: Geomorphology, v. 4, p. 161‑186.
1992 Howard, A.
D., Modeling channel migration and floodplain sedimentation in meandering
streams: in Lowland Flooplain Rivers:
Geomorphological Perspectives, edited by P. Carling and G. Petts,
1992 Thomas, P.,
S. Squyres, K. Herkenhoff, A. Howard and B. Murray, Polar deposits of
Mars: in Mars, H.H. Kieffer, B.M. Jakosky, C.W. Snyder, and M.S. Matthews
(eds), Tucson, University of Arizona Press, Ch. 23, p. 767‑795.
1993 Jacobson,
R.B., J.P. McGeehin, E.D. Cron, C.E. Carr, J.M. Harper, and A.D. Howard,
Landslides triggered by the storm of November 3‑5, 1985, Wills Mountain
Anticline, West Virginia and Virginia, in
R.B. Jacobson, (ed), Geomorphic Studies of the Storm and Flood of November
3‑5, 1985 in the Upper Potomac and Cheat River Basins in West Virginia
and Virginia, U.S. Geological Survey Bulletin
1981, p. C1‑C33.
1994 Howard,
A.D., Badlands, in Geomorphology of
Desert Environments, A. Abrahams and A. Parsons (eds.), Chapter 9, Chapman
& Hall, London, p. 213‑242.
1994 Howard, A.D.
and M.J. Selby, Rock slopes, in Geomorphology
of Desert Environments, A. Abrahams and A. Parsons (eds.), Chapter 7,
Chapman & Hall,
1994 Abrahams,
A., Howard, A.D., and Parsons, A.J., Rock‑mantled slopes, in Geomorphology of Desert Environments, A.
Abrahams and A. Parsons (eds.), Chapter 8, Chapman & Hall, London, 173‑212.
1994 Groves,
C.G., and Howard, A.D., Minimum hydrochemical conditions allowing limestone
cave development, Water Resources Research,
Vol 30, No. 3, p. 607‑616.
1994 Howard,
A.D., Dietrich, W.E., and Seidl, M.A., Modelling fluvial erosion on regional to
continental scales, Journal of Gephysical
Research, Vol 99, B7, 13971‑13986.
1994 Howard,
A.D., A detachment‑limited model of drainage basin evolution, Water Resources Research, Vol. 30, No.
7, p. 2261‑2285.
1994 Groves,
C.G., and A.D. Howard, Early development of karst systems: I. Preferential flowpath enlargement under
laminar flow, Water Resources Research,
Vol. 30, No. 10, p. 2837‑2846.
1995 Howard,
A.D., and
1995 Howard, A.D.
Simulation modeling and statistical classification of escarpment planforms, Geomorphology, Vol. 12, p. 187‑214.
1995 Kolberg,
F.J. and A.D. Howard, Active channel geometry and discharge relations of U.S.
Piedmont and Midwestern streams: The
variable exponent model revisited, Water
Resources Research, Vol. 31, No. 9, p. 2353‑2365.
1995 Hupp, C.R.,
Osterkamp, W.R., and A.D. Howard (Editors),
Biogeomorphology, terrestrial and freshwater systems.
1996 Howard, A.
D., The ephemeral mountains. Nature, 379, p. 488‑489.
1996 Howard, A.
D., Modelling channel evolution and floodplain morphology, book chapter for M.
A. Anderson, D. E. Walling, and P. D. Bates, editors, Floodplain Processes, Chichester, John Wiley & Sons, p. 15‑62.
1997
Howard, A. D.,
Badland morphology and evolution:
Interpretation using a simulation model.
Earth Surface Processes and
Landforms, v. 22, 211‑227.
1997 Howard, A.
D., Simulation of gully erosion and bistable landforms. In Management
of Landscapes Disturbed by Channel Incision, S.S.Y. Wang, E.D. Langendoen, and
F.D. Shields, Jr. (eds.),
1997 Craddock,
R.A., Maxwell, T.A., and A.D. Howard, Crater morphometry and modification in
the Sinus Sabaeus and Margaritifer Sinus regions of Mars. Journal
of Geophysical Research, v. 102, p. 13,321-13,340.
1998 Howard,
A.D., Long profile development of bedrock channels: interaction of weathering, mass wasting, bed
erosion, and sediment transport. In: Rivers over Rock: Fluvial Processes in Bedrock Channels, edited
by E. Wohl and K. Tinkler, American
Geophysical Union Monotraph 107, pp.297-319.
1999 Howard, A.D., Simulation of Gully Erosion and Bistable Landforms, book chapter, in Incised River Channels, edited by S. Darby and A. Simon, John Wiley & Sons, p. 277-300 & plates.
2000 Howard, A.D., The Role of Eolian Processes
in Forming Surface Features of the Martian Polar Layered Deposits, Icarus,
v. 144, p. 267-288.
2000 Craddock,
R.A., and Howard, A.D., Simulated degradation of lunar impact craters and a new
method for age dating farside mare deposits, Journal of Geophysical Research, , v. 105, p. 20387-20401.
2000 Clifford,
S.M. and 51 others, The State and Future of Mars Polar Science and Exploration,
Icarus, v. 144, p. 210-242.
2002 Craddock, R.
A., and Howard, A.D., The Case for
Rainfall on a Warm, Wet Early Mars, Journal
of Geophysical Research, Planets, Vol.
107, No. E11, 5111, doi: 10.1029/2001JE001505.
2003 Eaton,
L. S., Morgan, B.A., Kochel, R.C., and Howard, A.D., Quaternary deposits and
landscape evolution of the Central Blue Ridge of Virginia, Geomorphology, 56, p. 139-154.
2003 Eaton, L. S., Morgan, B.A., Kochel, R.C., and Howard, A.D., Role of Debris Flows in Long-term Landscape Denudation in the Central Appalachians of Virginia, Geology, 31, No. 4, p. 339-342.
2002 Irwin, Rossman P., and Howard, A.D.,
Drainage basin evolution in Noachian Terra Cimmeria, Mars, Journal of Geophysical Research, Planets, Vol. 107, No.
E7, 10.1029/2001JE001818.
2002 Irwin, Rossman P., Maxwell, T.A., Howard,
A.D., Craddock, R.A., and Leverington, D.W., A large paleolake basin at the
head of Ma’adim Valles, Mars, Science, v 296, p. 2209-2212.
2002 Fagherrazzi, S., Howard, A.D., and Wiberg,
P. L., An implicit finite difference method for drainage basin evolution, Water
Resources Research, Vol. 38, No. 4, No. 0, 10.1029/2001WR000721.
2002 Howard, A. D., Planetary science: Tracking the martian climate, Nature, Vol.
419, No 6905, p. 350-351.
2003
2003 Fagherazzi, S., Wiberg, P. L., Howard, A.
D., Tidal flow in a small basin, Journal of Geophysical Research, Oceans, 108,
No. 3, 16-1 – 16-10.
2003 Perron, J. T., Dietrich, W. E., Howard, A.
D., McKean, J. A., and Pettinga, J. R., Ice-driven creep an Martian debris
slopes, Geophysical Research Letters, v. 30, no. 14, 1747,
doi:10.1029/2003GL017603.
2004 Ross, K. M., Hupp, C. R., and Howard, A. D.,
Sedimentation in floodplains of selected tributaries of
2004 Howard, A. D., and Moore, J. M.,
Scarp-bounded benches in Gorgonum Chaos, Mars:
Formed beneath and ice-covered lake? Geophysical Research Letters, v.
31, no. 1, L01702, 10.1029/2003GL018925.
2004 Forsberg-Taylor, N. K., Howard, A. D.,
Craddock, R.A., Crater degradation in the Martian highlands: morphometric analysis of the Sinus Sabaeus
region and simulation modeling suggest fluvial processes. Journal of Geophysical Research, Planets.109,
E05002, doi:10.1029/2004JE002242.
2004 Fagherazzi, S., Howard, A. D., and Wiberg, P.
L., Modeling Fluvial Erosion and Deposition on Continental
Shelves During Sea Level Cycles. Journal of Geophysical Research, 109, doi: 10.1029/2003JF000091.
2004 Irwin, R. P. III, Howard, A. D., and Maxwell, T. A., Geomorphology of Ma’adim Vallis, Mars, and associated paleolake basins. Journal of Geophysical Research, 109, no. E12, E12009, 10.1029/2004JE002287.
2004 Irwin, R. P. III, Watters, T. R., Howard, A. D., and Zimbelman, J. R., Sedimentary resurfacing and fretted terrain development along the crustal dichotomy boundary, Aeolis Mensae, Mars. Journal of Geophysical Research, 109, E09011, 10.1029/2004JE002248.
PAPERS IN REVIEW
2004 Howard,
A. D., Dietrich, W.E., Perron, T., and
PAPERS IN PREPARATION.
2004 Howard,
A.D.,
2004 Howard, A.D., Simulation
models for landform evolution on early Mars:
cratering, lava emplacement, eolian deposition, weathering, mass
wasting, and fluvial processes. to
be submitted to Journal of
Geophysical Research, Planets.
UNREFEREED BOOKS, REPORTS, ARTICLES, REVIEWS,
DISCUSSIONS, REPRINTED ARTICLES, ABSTRACTS, INVITED PRESENTATIONS, AND
SEMI‑POPULAR PUBLICATIONS.
196l Howard,
A.D. Cutters, a limestone karst feature.
National Speleological Society Annual Meeting, Abstract, National Speleological Society News, v.
19(8), p. 92.
1964 Howard,
A.D. Topography of the Dubuque South
Quadrangle,
1964 Review of
"Reconnasissance of Groundwater Resources in the Mississippi Plateau
Region,
1966 Howard,
A.D. Stratigraphic and structural
controls on landform development in the karst area of
1966 Howard, A.D.
and B.Y. Ellis. Solution of limestone
under laminar flow between parallel boundaries.
Geology Section, National Speleological Society Program at the American
Association for the Advancement of Science Annual Meeting, Abstract, National Speleological Society Bulletin,
v. 29(3), p. l04 (1967).
1968 Howard,
A.D. General systems theory in
geomorphology. Encyclopedia of Geomorphology, Fairbridge, R.W., Ed., Reinhold Co.,
1969 Howard,
A.D. A dynamic approach to process and
erosional history in an arid environment.
Joint
1969 Review of
"Investigation of water losses to sinkholes in the Pahasapa Limestone and
their relation to resurgent springs,
1970 Howard,
A.D. Geomorphic studies of flooded areas
in
197l Howard, A.D.
Problems in Interpretation of simulation models of geologic
processes. Second Annual Geomorphology
Symposium: Quantitative Geomorphology,
1972 Howard, A.D.
and B.Y. Howard. Application of stable
isotope studies to karst research:
discussion. Caves and Karst, v. l4, p. 9‑l3 (discussion of a paper by
R.S. Harmon).
1973 Howard, A.D.
Erosion rates and channel gradients in natural and man‑induced
badlands. Paper presented at the 54th
AnnualMeeting, American Geophysical Union, Abstract, Transactions, American Geophysical
1973 Howard,
A.D. Equilibrio I dinamica dos sistemas
geomorfologicos. Notic. Geomorp., v. l3, no. 26, p. 3‑20. (Translation from Am. Jour. Sci., v. 263, p. 302‑3l2,
1965).
1975 Howard,
A.D. Eolian Processes and Forms. Geological Society of
1976 Howard,
A.D. Laboratory experimentation, in A Geological Basis for the Exploration of
the Planets, R. Greeley and M.H. Carr, eds., NASA SP‑4l7, p. 9l‑94.
1976 Howard,
A.D. Geomorphological Systems: equilibrium and dynamics. In Landforms
and Geomorphology; Concepts and history (King, C.A.M., editor), v. 28, p.
256‑26l, Dowden, Hutchinson and Ross, Inc. (exerpt from Am. Jour.
Sci., v.
263, 1965.
1977 Dunford‑Jackson,
C.S. and Howard, A.D. Geomorphic
evaluation of the
1977 Howard,
A.D. Geologic, topographic, and meteorologic
influences on eolian deposition, Earth and Mars. NASA Planetary Geology Annual Meeting,
Abstract in Reports of Planetary Geology
Program, R. Arvidson and R. Whamann, eds., NASA TM X‑35ll, p. l48‑l49.
1977 Johnson, R.,
Carothers, S.W., Dolan, R., Hayden, B., and Howard, A. Man's impact on the
1978 Howard,
A.D. Three topics on the mechanics of
dunes. NASA Planetary Geology Annual
Meeting, Abstract in Reports of Planetary
Geology Program, R. Strom and J. Boyce, eds., NASA Tm 79729, p. 23l‑233.
1978 Howard,
A.D. Thresholds in River Regime. Ninth Annual Geomorphology Symposium: The
Concept of Geomorphic Thresholds,
1978 Howard,
A.D. Investigations of Martian polar
statigraphy, structure, and topography.
Abstract in Proceedings of the
Second Colloqrium on Planetary Water and Polar Processes. p. l84‑l85.
1979 Howard,
A.D. The Martian Poles: Studies of Topography Stratigraphy, Geologic
Evolution. NASA Planetary Geology Annual
Meeting, Abstract in Reports of Planetary
Geology Program, 1978‑79,
NASA Tech. Mem. 80339, p. l03‑l05.
1979 Howard, A.D.
and Dolan, R. Changes in fluvial deposits of the Colorado River in the Grand
Canyon caused by Glen Canyon Dam. Proceedings
of the First Conference of Scientific Research in the National Parks, p.
845‑85l.
1980 Howard,
A.D. Studies of the Martian polar
caps. NASA Planetary Geology Annual
Meeting, Abstract in Reportsof Planetary Geology Meeting, 1979‑80, NASA
Tech. Mem., 8l776, 60‑63.
198l Howard,
A.D. Effects of wind on scarp evolution
on the Martian poles. NASA Planetary
Geology Annual Meeting. Abstract in Reports of Planetary Geology Meeting, 1980, NASA Tech. Mem. 82385, p. 333‑335.
198l Cutts,
J.S., Pollack, J.B., Howard, A.D., Toon, O.B.
Quasi‑periodic climate changes on Mars and Earth. Report of a conference. EOS.
1981 Howard, A.D.
and McLane, C. Groundwater sapping in
sediments: Theory and experiments.
(Abstract). Reports of Planetary Geology
Program‑1981, NASA Tech. Mem. 84211, p. 283‑285.
1981 Howard,
A.D.. Etched plains and braided ridges
of the south polar region of Mars:
Features produced by basal melting of ground ice? (Abstract). Reports
of Planetary Geology Program‑1981, NASA Tech Mem. 84211, p. 286‑288.
1981 Howard, A.D., Cutts, J.A., and Blasius,
K.R. Diagnostic stratigraphic
relationships in areas of complex topography on polarlayered deposits.
(Abstract) Reports of Planetary Geology
Program‑1981, NASA Tech. Mem.
84211, p. 342‑344.
1981 Cutts, J.A.,
Howard, A.D., Pollack, J.B., and Toon, O.B.
Workshop on quasi‑periodic climatic changes on Mars and
Earth.(Abstract). Reports of Planetary Geology Program‑1981, NASA Tech. Mem.
84211, p. 345‑346.
1983 Howard,
A.D., and McLane, C. Groundwater Sapping
Studies (Abstract), NASA Tech Memorandum
85127.
1983 Howard, A.D.
and Kochel, R.C. Quantitative and
Experimental Modelling of Sapping Networks (Abstract). NASA Tech.Memorandum 86246, p. 191‑193.
1984 Howard,
A.D., Simulation Model of Stream Meandering.
River Meandering, American Society of Civil Engineers,
1985 Howard,
A.D., Interaction of sand transport with topography and local winds in the
northern Peruvian coastal desert: Proceedings
of International Workshop
on the Physics of Blown Sand,
edited by O.E. Barndorff‑Nielson, J.T.
Moeller, K. Romer Rasmussen, and
B.B. Willetts, Department of Theoretical Statistics, University of Aarhus,
Aarhus, Denmark, Memoirs No. 8, v. 3, p. 377‑391.
1985 Howard,
A.D., and Walmsley, J.L., 1985, Simulation model of isolated dune scupture by
wind: Proceedings of International Workshop on the Physics of Blown Sand,
edited by O.E. Barndorff‑Nielson, J.T. Moeller, K. Romer Rasmussen, and
B. B. Willetts, Department of Theoretical Statistics, University of Aarhus,
Aarhus, Denmark, Memoirs No. 8, v. 3, p. 377‑391.
1986 Howard, A.
D., Quaternary landform evolution of the
1987 Howard, A.
D., and Hornberger, G. M., Simulation model of scarp erosion by groundwater
sapping [abstract]: EOS, v. 68, p. 1273.
1988 Howard,
A.D., Groundwater sapping experiments and modeling: in Sapping Features of the Colorado Plateau, edited by A.D. Howard, R.
C. Kochel, and H. R. Holt, NASA SP‑491, p. 71‑83.
1988 Howard,
A.D., and Kochel, R. C., Introduction to cuesta landforms and sapping processes
on the Colorado Plateau: in Sapping
Features of the Colorado Plateau, edited by A.D. Howard, R.C. Kochel, and
H. R. Holt, NASA SP‑491, p. 6‑56.
1988 Howard,
A.D., Introduction: Groundwater sapping
on Mars and Earth: in Sapping Features of the Colorado Plateau,
edited by A.D. Howard, R. C. Kochel, and H. R. Holt, NASA SP‑491, p. 1‑5.
1988 Howard,
A.D., Scarps produced by groundwater sapping:
Simulation model and morphometry [Abstract]: Association of American Geographers, Program and Abstracts, 1988 Annual
Meeting, p. 83.
1988 Howard,
A.D., Simulation models of scarp and valley development [Abstract]: Program
and Abstracts of the Fourth International Conference on Mars, January,
1989, p. 129.
1989 Howard, A.D.,
Morphometry of natural and simulated scarps [Abstract]: Association of American Geographers, Program and Abstracts, 1989 Annual
Meeting.
1989 Howard,
A.D., Simulation models of stream meandering:
Assessment, variations, and prospects [Abstract]: EOS,
70, 329.
1989 Howard,
A.D., Simulation models of scarp and valley development [Abstract]: Reports
of the Planetary Geology and Geophysics Program. NASA TM 4130, 319‑321.
1989 Howard,
A.D., Morphometry of planimetric landforms [Abstract]: Reports
of the Planetary Geology and Geophysics Program. NASA TM 4130, 313‑315.
1989 Howard,
A.D., Miniature analog of spur-and-gully landforms in Valles Marineris
[Abstract]: Reports of the Planetary Geology and Geophysics Program. NASA TM
4130, 355‑357.
1989 Howard,
A.D., Shape variations in barchan dunes: A simulation approach [Abstract]: EOS,
v. 70, p. 1110.
1990 Howard,
A.D., Groundwater and fluvial erosion on Mars:
Recharge of Dewatering? [Abstract]:
Reports of the Planetary Geology
and Geophysics Program, NASA TM 4210, 342‑344.
1990 Preliminary
model of processes forming spur‑and‑gully terrain [Abstract]: Reports of the Planetary Geology and
Geophysics Program, NASA TM 4210, 345‑347.
1990 Prospects
for simulation modeling of valley networks on Mars [Abstract]: Reports
of the Planetary Geology and Geophysics Program, NASA TM 4210,
348‑350.
1990 Parsimonious
simulation model for drainage basin evolution [Abstract]: EOS,
v 71, p. 516.
1990 Recipies for
drainage basins: How many ingredients
are necessary and how are they mixed?:
Invited talk at 1990 meeting of the Gilbert
Club ‑ East,
1990 Modelling
floodplain ‑ channel interactions:
Invited presentation at the Fluvial
Dynamics of Lowland River Channel and Floodplain Systems meeting,
1991 A martian
global groundwater model [Abstract]: Reports
of the Planetary Geology and Geophysics Program-1990, NASA TM 4300,
114‑116.
1991 Role of
groundwater in formation of martian channels: ]: Reports of the Planetary Geology and Geophysics Program-1990, NASA TM 4300,
117‑119.
1991 Role of
artesian groundwater in forming martian permafrost features: ]: Reports of the Planetary Geology and
Geophysics Program-1990, NASA TM 4300, 120‑122.
1991 Groundwater
sapping on Earth and Mars: Invited
presentation at the University of Lancaster, England.
1991 Scarp
erosion processes: Colorado Plateau and
simulation modeling: Invited
presentation at Queen Mary and
1991 Simulation
modeling of barchan dunes: Invited
presentation at University College London (
1991 Fluvial
erosion on Mars: Invited seminar at
University College London, England.
1991 Simulation
modeling of barchan dunes: Invited
seminar at
1991 Modeling
channel migration and floodplain sedimentation in meandering streams: Invited seminar at
1991 Modeling
drainage pattern evolution and drainage basin hydrology: Invited seminar at
1991 Shifting
sands and wandering rivers: Simulation
Modeling. The Maconochie Lecture,
1991 Fluvial
erosion on Mars: Invited seminar at the
University of
1991 Scarp
processes: Colorado Plateau and
simulation models: Invited seminar at
Coventry Polytechnic,
1991 Scarp
processes: Colorado Plateau and
simulation models: Invited seminar at
1991 Modeling
channel migration and floodplain sedimentation in meandering streams: Invited seminar at
1991 A Martian global groundwater model
[Abstract]: Reports of the Planetary Geology and Geophysics Program, NASA TM
4300, p. 114‑116.
1991 Role of groundwater in formation of Martian
channels [Abstract]: Reports of the Planetary Geology and
Geophysics Program, NASA TM 4300, p. 117‑119.
1991 Role of artesian groundwater in forming
Martian permafrost features [Abstract]: Reports of the Planetary Geology and
Geophysics Program, NASA TM 4300, p. 120‑122.
1991 Issues in drainage basin modelling: Drainage density, drainage pattern,
randomness, and validation [Abstract]:
Paper presented at the BGRG‑COMTAG symposium on Theory in
Geomorphology,
1992 Simulated
erosion of Martian heavily cratered terrain [Abstract]. Lunar
and Planetary Science Conference XXIII, 559‑560.
1992 Morphometric
definition of drainage density [Abstract].
EOS, Spring Amer. Geophys. Union
Meeting.
1993 Models of
drainage basin evolution. Invited
presentation at
1993 Modelling
early erosion of Mars cratered terrain.
Invited presentation at Smithsonian Institution.
1993 Modelling
Mars. Invited presentation at 1993
spring Gilbert Club meeting, Baltimore.
1993 Drainage
basin modelling. Invited presentation at
1993 fall Gilbert Club meeting, Berkeley.
1994 Modeling of
landform evolution. Invited presentation
1994 Fall Geological Society of America meeting
1994 Modeling of
landform evolution on the Colorado Plateau.
Invited presentation, 1994 Fall American Geophysical Union Meeting.
1995 Simulation
modeling of landform evolution. Invited
Presentation at
1995 Simulation
modeling of landform evolution. Invited
Presentaion at
1996 Transient Response of a drainage basin model: landform
alteration resulting from changes in uplift rate, climate or land use. Keynote
Address, Royal Geographical Society and
1996 Citation for
William E. Dietrich for American Geophysical Union Hydrology Section Horton
Award, EOS Trans, v. 77(13), p. 124.
1996
Thresholds and
bistable states in landform evolution models.
Invitied presentation at Spring, 1996 American Geophysical Union Meeting
(EOS, Supplement April 23, 1996, p. S136).
1997 Simulation
modeling of landform evolution. Invited
Presentation at Massachusetts Institute of Technology, February, 1997
1997 Simulation modeling of stream meandering and
floodplain deposition. Invited
presentation at
1997
Modeling gully development due to vegetation
disturbance. Invited presentation at the
Spring, 1998 American Geophysical Union Meeting,
1998 Simulation
of erosion of ancient cratered terrain on Mars.
Presentation at the 29th Lunar and Planetary Science
Conference, March, 1998.
1998 Role of
eolian processes in shaping the Martian polar caps, Presentation at the 1st
International Mars Polar Conference,
2000 Degraded
Noachian Craters: Fluvial versus lava
infilling. Presentation at the 31st Lunar and Planetary Science Conference,
March, 2000.
2000 Ancient
crater basins: A triad of morphologies,
Presentation at the Fall, 2000 American Geophysical Union Meeting,
2000 Mars was
once blue, before de-terraforming.
Invited presentation at Massachusetts Institute of Technology, November,
2000.
2001 Percival
Lowell Vindicated! Invited presentation
at
2001 Simulating
landform evolution on early Mars.
Invited presentation as Scripps Institution of Oceanography,
2001 Degraded
crater morphology: fans, playas and
lakes. Presentation at the Martian
Highlands Field Conference,
2002
Early Mars: How
wet, how warm, how much erosion? Invited presentation at the Lunar and
Planetary Institute,
2002 Four billion years ago on Mars: A cold
desert environment or flowing rivers and open oceans? Invited presentation at William
and Mary,
2002 How
extensive was fluvial erosion during the Martian Noachian? Presentation at the American Geophysical
Union Annual Fall Meeting, December, 2002,
2003 Erosional history of Mars during the
Noachian, invited presentation at the American Geophysical Union – European
Geophysical Union Meeting,
2003
The curious shorelines of Gorgonom
Chaos, Mars, Paper presented at the Mars 6 conference,
2003 Simulating landform evolution on Mars, paper
presented at the 2003 Fall American Geophysical Union Meeting,
2003 The surface of Mars: Mysteries and controversies, invited
presentation at the 2003 Gilbert Club meeting,
2004 Changing style of erosion during the
Noachian-Hesterian transition and a possible climatic optimum, presentation at
the Vernadsky Symposium and the 35th Lunar and Planetary Science
Meeting,
2004 Incision into bedrock: The known and the uncertain, invited
presentation at the 1st annual meeting of the European Geophysical
Union,
2004 Water on Mars: An overview, Invited
presentation to the Icelandic Geosciences Society,
2004 Memory and inheritance in slope
evolution: The Colorado Plateau and
Mars, Invited presentation at the Annual Meeting of the Geological Society of
America,
2004 Four billion years of fluvial erosion on
Mars, invited presentation at Lamont-Doherty Earth Observatory, New York,
November 12, 2004
PROFESSIONAL RECOGNITION
Associate Editor of Caves
and Karst, 1969‑74.
Served as an external examiner for the Ph.D. degree for
Dr. A.D. Abrahams, the University of Sydney, Australia.
Served as an external examiner for Mr. J.M. Urquhart, the
Associate Editor of Water
Resources Research, 1975‑1979, 1995‑1997.
Served on Organizing Committee for Second Colloquium on Planetary Water and Polar Processes,
Served on Organizing Committee for NASA Workshop on Martian Polar Processes, February, 198l.
Served as an external examiner for Mr. Mike O'Niell,
State University of New York at
Chairman and organizer for Drainage Basin Geomorphology Session, American Geophysical Union Spring, 1988
Meeting.
Member, NASA Lunar
and Planetary Review Panel, 1988‑1990, 1996‑1998, 2000; section
chair, 1998, 2000.
Member, American Geophysical Union Hydrology Committee on
Erosion and Sedimentation, 1988‑94.
Member, National Science Foundation Science and
Chairman and organizer for The Drainage Basin: Geomorphology and Hydrology Session, American Geophysical Union Spring, 1990
Meeting.
Member, NASA
Magellan Guest Investigator Review Panel, 1990.
Member, Geological
Society of
Program Chairman, 1990
Annual Meeting of the Division of Planetary Sciences, American Astronomical
Society,
Visiting Professor,
Recipient of the 1991 G.
K. Gilbert Award for Excellence in Geomorphic Research, Geomophology
Specialty Group, Association of American Geographers.
Served as an External Examiner for Mr. Neil Flood,
Co‑organizer of session on Hillslope Channel Interactions, American Geophysical Union Spring,
1992 Meeting,
Visiting Lecturer, the Parker Exchange Program, Hokkaido
Disaster Prevention Center & other universities and centers in Japan, June
30 ‑ July 31, 1992.
Co‑organizer, NASA workshop on Mars
Member, scientific review panel for NASA Mesur Pathfinder
instrument proposals, 1993.
Co‑Organizer, 26th
Successfully Nominated William E. Dietrich for the
American Geophysical Union Hydrology Section Horton Award, 1995, and presented
the award citation at the 1995 fall meeting.
Member, review panel for guest investigator proposals, NASA Pathfinder mission, 1996.
Presented keynote address at a field workshop of the IVth
International Conference on Geomorphology, Badland
processes and significance in changing environments,
Member, review panel for scientific review of NASA
Discovery Mission proposals, 1997‑1998.
Elected Fellow of the American Geophysical
Co‑leader of post‑conference field trip to
the
Co‑chair of session on Bedrock rivers at the fall American Geophysical Union, 1997.
Served as external reviewer for PhD Dissertation of
Ranier Wende,
Served as external examiner (opponent) for PhD
Dissertation of Tao Sun, Department of Physics,
Served on Physical Resources Monitoring Review Panel,
Member of Editorial Board, Earth Surface Processes and Landforms 1998-2003.
Visiting Professor, UFR
Sciences Physiques de la Terre, Universite Denis-Diderot Paris 7, May-June,
1999.
Member, NASA MEPAG panel (Mars Exploration Package
Assessment Group), 1999-2002.
Visiting Professor, Scripps
Institute of Oceanography, La Jolla, June, 2001.
Appointed Science Advisor for
Geomorphology, Grand Canyon Monitoring and Research Center, Flagstaff Arizona,
2001-.
Review Panel Member, Mars Odyssey
Participating Scientist Program Review, December 2001.
Conference organizer and trip leader, Martian Highlands Field Conference, Las Vegas, NV and Barstow, CA, October 20-27, 2001.
Review Panel Member, NASA Mars Data Analysis Program, 2002-2004.