CURRICULUM VITAE

 

                                                     Alan Dighton Howard

 

                                                            January, 2005

 

PERSONAL HISTORY

 

            Birthdate and Place:  March 30, 1939; Evanston, Illinois

            Marital Status:  Married to P. Marlowe Howard, no children

 

ADDRESS

 

Home: Rt. 3, Box 680

                        Crozet, Virginia, 22932

                        (804) 823‑5532

 

Work:  Department of Environmental Sciences

                        University of Virginia

                        Clark Hall

                        Charlottesville, Virginia 22903

                        (804) 924‑0563;  FAX (804) 982‑2137; EMAIL ah6p@Virginia.EDU

 

EDUCATION

 

B.S.      Geology, Yale University, New Haven, Connecticut, June 196l.

M.A.    Geology, Harvard University, Cambridge, Massachusetts, June 1962.

Ph.D.   Geography, The Johns Hopkins University, Baltimore, Maryland, June 1970.  Dissertation:  A Study of Process and History in Desert Landforms near the Henry Mountains, Utah.

 

PROFESSIONAL EXPERIENCE

 

Acting Assistant Professor, Department of Geography, University of Virginia, Charlottesville, Virginia, September 1968 ‑ June 1970.

 

Assistant Professor, Department of Environmental Sciences, University of Virginia, Charlottesville, Virginia, June 1970 ‑ September 1973.

 

Associate Professor, Department of Environmental Sciences, University of Virginia, Charlottesville, Virginia, September 1973 ‑ September, 1984.

 

Professor, Department of Environmental Sciences, University of Virginia, Charlottesville, Virginia, September 1984 ‑ present.

 

PROFESSIONAL SOCIETIES

 

Fellow, American Geophysical Union

Member, Geological Society of America

Fellow, National Speleological Society

Member, Cave Research Foundation

 

FUNDED RESEARCH AT THE UNIVERSITY OF VIRGINIA

 

Evolution of Drainage Basin Characteristics.  Funded by NSF. Institutional Subgrant.

 

Erosion and Sedimentation at a Borrow Pit near Fredericksburg, Virginia.  Partially funded by the Virginia Highway Research Council.

 

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 Virginia.  U.S. Geological Survey.

 

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, NASA Ames Research Center and James Rice, Arizona State University.

 

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, NASA Ames Research Center).

 

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 Black Hills.  National Speleological Bulletin, v. 26, p. 7‑l6.

 

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., Keetch, M.E., and C.L. Vincent.  Topological and geometrical properties of braided streams.  Water Resources Research, v. 6, no. 6, p. l674‑l688.

 

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, Binghamton, N.Y., Ch. 2, p. 6l‑82.

 

1974    Dolan, R., Howard, A.D., and Gallenson, A.  Man's impact on the Colorado River in the Grand Canyon.  American Scientist, v. 62, p. 394‑40l.

 

1977    Howard, A.D.  Effect of Slope on the Threshold of Motion and its Application to Orientation of Wind Ripples.  Geological Society of America Bulletin, v. 88, p. 853‑856.

 

1977    Dolan, R., Hayden, B., Howard, A., and Johnson, R.  Environmental management of the Colorado River within the Grand Canyon.  Environmental Management, V. l, p. 39l‑400.

 

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 Colorado River in the Grand Canyon.  Science, v. 202, p. 629.

 

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, Boston, Ch. ll, p. 227‑258.

 

198l     Howard, A. D., and Dolan, R.  Geomorphology of the Colorado River in the Grand Canyon.  Journal of Geology, 89, p. 269‑298.

 

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 America Bulletin, v. 94, p. 739‑ 752.

 

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 Chesapeake Bay 4 x 6  Quadrangle, United  States:  U.S. Geological Survey, Map I‑1420. 

 

1987    Howard. A. D., Modelling fluvial systems: rock, gravel and sand bed channels: in River Channels, edited by K. S. Richards, Basil Blackwell, Oxford, Ch. 4, p. 69‑94.

 

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 Blue Ridge 4 x 6 Quadrangle, United States:  U.S. Geological Survey Miscellaneous Investigations Map, I‑1420.

 

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, Chichester, John Wiley and Sons, Ch. 1, p. 1‑41.

 

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, London, p. 123‑172.

 

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 Groves, C.G., Early development of karst systems: II.  Turbulent flow, Water Resources Research, Vol. 31, No. 1, p. 19‑26.

 

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.  Amsterdam, Elsevier, 347 pp.  (also referenced as issues 1‑4 of the journal Geomorphology, Vol. 13).

 

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.), Oxford (Miss.), Cent. Comput. Hydrosci. Engr., U. Miss., 516-521.

 

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    Moore, J. M.., Howard, A.D., Dietrich, W. E., and Schenk, P.,  Martian layered fluvial deposits:  Implications for Noachian climate scenarios, Geophysical Research Letters, 30(24), 2292, doi:10.1029/2003GL019002.

 

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 Chesapeake Bay, in Riparian Vegetation and Fluvial Geomorphology, Water Science and Application 8, p. 187-208.

 

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 Moore, J. M., Arcuate ramparts, crater wall deposits, and textured basin floors in mid-southern-latitude Martian craters.  submitted to Journal of Geophysical Research, Planets.

 

 

 

PAPERS IN PREPARATION.

 

2004    Howard, A.D., Moore, J.M., and P. Schenk, Geomorphic analysis of the Isidis Region: Implications for Noachian processes and environments, to be submitted to Journal of Geophysical Research, Planets.

 

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, IowaIllinois, in relation to cyclical and equilibrium theories oflandform development, Iowa Academy of Science Annual Meeting, no Abstract.

 

1964    Review of "Reconnasissance of Groundwater Resources in the Mississippi Plateau Region, Kentucky, by R.F. Brown and T.W. Lambert.  U.S. Geological Survey Water Supply Paper l603; 58 pp., 1963, and Groundwater geology of Edwards County, Texas, by A.T. Long.  U.S.Geological Survey Water Supply Paper l619‑J, 29 pp., 1963."  National Speleological Society News, V. 22(5), p. 59.

 

1966    Howard, A.D.  Stratigraphic and structural controls on landform development in the karst area of Central Kentucky.  Geology Section, National Speleological Society Program at the American Association for Advancement of Science Annual Meeting, Abstract, National Speleological Society Bulletin, v. 29(3), p. l04 (1967).

 

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.,New York, p. 382‑384.

 

1969    Howard, A.D.  A dynamic approach to process and erosional history in an arid environment.  Joint U.S. Israel Geography Symposium,Jerusalem, no Abstract.

 

1969    Review of "Investigation of water losses to sinkholes in the Pahasapa Limestone and their relation to resurgent springs, Black Hills, South Dakota.  Project Completion Report A‑0l0‑South Dakota FY 1969" in Cave Notes, v. ll(5), p. 37.

 

1970    Howard, A.D.  Geomorphic studies of flooded areas in Nelson County, Virginia.  Geology Section, Virginia Academy of Sciences,Richmond, Virginia, no Abstract.

 

197l      Howard, A.D.  Problems in Interpretation of simulation models of geologic processes.  Second Annual Geomorphology Symposium: Quantitative Geomorphology, Binghamton, New York, Abstract in Program.  (Invited paper).

 

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 Union, v. 54, no. 4, p. 274.

 

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 America Annual Meeting, Abstract in Geol. Soc. Am. Abst. Programs, v. 7, no. 7, p. ll22.  (invited paper).

 

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 Rappahannock River Basin.  Southeastern Section, 26th Annual Meeting, Geological Society of America, Abstract in Geol. Soc. Am. Abst. Programs, v. 9, no. 2, p. l35.

 

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 Colorado River in the Grand Canyon. National Parks and Conservation Magazine, March, 1977, p. l3‑l6.

 

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, Binghamton, New York, Abstract in Program. (Invited paper).

 

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, New York, p. 952‑963.

 

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 Dirty Devil River system, Utah [Abstract]:  Geological Society of America, Abstracts with Programs, 1986 National Meeting.

 

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, Baltimore, Maryland.

 

1990    Modelling floodplain ‑ channel interactions:  Invited presentation at the Fluvial Dynamics of Lowland River Channel and Floodplain Systems meeting, Loughbourough, England (British Geomorphological Research Group).

 

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 Westfield College, England.

 

1991    Simulation modeling of barchan dunes:  Invited presentation at University College London (England) dunes conference.

 

1991    Fluvial erosion on Mars:  Invited seminar at University College London, England.

 

1991    Simulation modeling of barchan dunes:  Invited seminar at Oxford College, England.

 

1991    Modeling channel migration and floodplain sedimentation in meandering streams:  Invited seminar at University of Bristol, England.

 

1991    Modeling drainage pattern evolution and drainage basin hydrology:  Invited seminar at University of Sheffield, England

 

1991    Shifting sands and wandering rivers:  Simulation Modeling.  The Maconochie Lecture, University College London, England.

 

1991    Fluvial erosion on Mars:  Invited seminar at the University of Keele, England.

 

1991    Scarp processes:  Colorado Plateau and simulation models:  Invited seminar at Coventry Polytechnic, England.

 

1991    Scarp processes:  Colorado Plateau and simulation models:  Invited seminar at University of Leeds, England.

 

1991    Modeling channel migration and floodplain sedimentation in meandering streams:  Invited seminar at Cambridge University, England.

 

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, Leeds, England.

 

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 University of Minnesota.

 

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 Cornell University, January, 1995.

 

1995    Simulation modeling of landform evolution.  Invited Presentaion at Johns Hopkins University, October, 1995

 

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 Institute of British Geographers Annual Conference, in British Geomorphological Research Group session on "Linking short‑term geomorphic processes to landscape evolution", Glasgow, Scotland, January, 1996

 

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 Washington University, April, 1997

 

1997        Modeling gully development due to vegetation disturbance.  Invited presentation at the Spring, 1998 American Geophysical Union Meeting, Boston.    

 

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, Houston, October, 1998.

 

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,  San Francisco.

 

2000    Mars was once blue, before de-terraforming.  Invited presentation at Massachusetts Institute of Technology, November, 2000.

 

2001    Percival Lowell Vindicated!  Invited presentation at Duke University, April, 2001.

 

2001    Simulating landform evolution on early Mars.  Invited presentation as Scripps Institution of Oceanography, La Jolla, CA, June, 2001

 

2001    Degraded crater morphology:  fans, playas and lakes.  Presentation at the Martian Highlands Field Conference, Barstow, CA, October, 2001

 

2002   Early Mars:  How wet, how warm, how much erosion?  Invited presentation at the Lunar and Planetary Institute, Houston, January, 2002.

 

2002    Four billion years ago on Mars:  A cold desert environment or flowing rivers and open oceans?  Invited presentation at William and Mary, Williamsburg, October, 2002.

 

2002    How extensive was fluvial erosion during the Martian Noachian?  Presentation at the American Geophysical Union Annual Fall Meeting, December, 2002, San Francisco, CA.

 

2003    Erosional history of Mars during the Noachian, invited presentation at the American Geophysical Union – European Geophysical Union Meeting, Nice, France.

 

2003    The curious shorelines of Gorgonom Chaos, Mars, Paper presented at the Mars 6 conference, Pasadena, CA.

 

2003    Simulating landform evolution on Mars, paper presented at the 2003 Fall American Geophysical Union Meeting, San Francisco, CA, December

 

2003    The surface of Mars:  Mysteries and controversies, invited presentation at the 2003 Gilbert Club meeting, University of California, Berkeley, December.

 

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, Houston, March.

 

2004    Incision into bedrock:  The known and the uncertain, invited presentation at the 1st annual meeting of the European Geophysical Union, Nice, France, April.

 

2004    Water on Mars: An overview, Invited presentation to the Icelandic Geosciences Society, Reykjavik, June.

 

2004    Memory and inheritance in slope evolution:  The Colorado Plateau and Mars, Invited presentation at the Annual Meeting of the Geological Society of America, Denver, October.

 

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 Australian National University.

 

Associate Editor of Water Resources Research, 1975‑1979, 1995‑1997.

 

Served on Organizing Committee for Second Colloquium on Planetary Water and Polar Processes, Dartmouth, New Hampshire, October, 1978.

 

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 Buffalo, 1987.

 

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 Technology Center Review Panel, 1989.

 

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 America Mackin Grant Review Panel, 1990

 

Program Chairman, 1990 Annual Meeting of the Division of Planetary Sciences, American Astronomical Society, Charlottesville, Virginia, October 22‑26.

 

Visiting Professor, University of London, London, England, Spring, 1991

 

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, Maquarie University, Sydney, NSW, 1991.

 

Co‑organizer of session on Hillslope Channel Interactions, American Geophysical Union Spring, 1992 Meeting, Montreal.

 

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 Polar Regions:  Geology, Glaciology, and Climate History, November 13‑15, 1992.

 

Member, scientific review panel for NASA Mesur Pathfinder instrument proposals, 1993.

 

Co‑Organizer, 26th Binghamton Geomorphology Symposium, "Biogeomorphology ‑‑ Terrestrial and Freshwater Aquatic Systems", Charlottesville, October, 1995.

 

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, Siena, Italy, Aug. 23‑27, 1997.

 

Member, review panel for scientific review of NASA Discovery Mission proposals, 1997‑1998.

 

Elected Fellow of the American Geophysical Union, February, 1997.

 

Co‑leader of post‑conference field trip to the Henry Mountains, Utah in conjunction with the annual meeting of the Geological Society of America, Salt Lake City, Utah, October 23‑25, 1997.

 

Co‑chair of session on Bedrock rivers at the fall American Geophysical Union, 1997.

 

Served as external reviewer for PhD Dissertation of Ranier Wende, School of Geosciences, University of Wollongong.

 

Served as external examiner (opponent) for PhD Dissertation of Tao Sun, Department of Physics, University of Oslo, 1998.

 

Served on Physical Resources Monitoring Review Panel, Grand Canyon Monitoring and Research Center, 1998 & 1999.

 

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.