Ian M. Howat

Ph.D., University of California, Santa Cruz, 2006
Assistant Professor
School of Earth Sciences

E-mail: ihowat@gmail.com
Office: Scott Hall 275A
Lab: Scott Hall 291
Phone: 614-292-6641

Research Interests: Dynamics of Glaciers and Ice Sheets, Ice/Climate/Ocean Interactions, Snowpack Sensitivity to Climate Change

Current Research Projects

• Constraining the Causes, Mechanisms and Impacts of Rapid Changes in Greenland's Outlet Glaciers, 2008-2011, funded by the NASA Cryosphere Program
• IPY: Collaborative Research: Dynamic Controls on Tidewater Glacier Retreat, 2008-2011, funded by the National Science Foundation
• Combined GPS/Photogrammetric/oceanographic observations of Greenland outlet glacier dynamics during spring break-up, 2008, funded by the NASA Cryosphere Program
• Greenland Ice Mapping Program: Observations of Rapid Ice Sheet Change, 2008-2013, funded by the NASA MeASURES Program
• Collaborative Research: Controls on the motion of soft-bedded glaciers from hourly to seasonal observations of force budget and basal conditions at Breidamerkurjokull, Iceland, 2008-2010, funded by the National Science Foundation

Teaching

• EART121 The Dynamic Earth (next offered Fall 2008)
• EART650 Glaciology (next offered Winter 2008)
• EART450 The Cryosphere (next offered Spring 2009)

Publications

PDF downloads may require online journal subscriptions. Please email me for a copy if you do not have a subscription.

In Press

Joughin, I., I. M. Howat, M. Fahnestock, B. Smith, W. Krabill, R. Alley, H. Stern, and M. Truffer, in press, Continued Evolution of Jakobshavn Isbrae Following its Rapid Speedup, Journal of Geophysical Research- Earth Surface, doi:10.1029/2008JF001023. preprint

2008

Howat, I. M., I. Joughin, M. Fahnestock, B. E. Smith and T. Scambos, 2008, Synchronous retreat and acceleration of southeast Greenland outlet glaciers 2000-2006; Ice dynamics and coupling to climate, Journal of Glaciology, 54(187), 646-660. pdf

Howat, I. M., B.E. Smith, I. Joughin and T.A. Scambos, 2008, Rates of southeast Greenland ice volume loss from combined ICESAT and ASTER observations, Geophysical Research Letters, 35, L17505, doi:10.1029/2008GL034496. abstract | pdf | auxiliary material

Howat, I. M., S. Tulaczyk, E. Waddington and H. Björnsson, 2008, Dynamic controls on glacier basal motion inferred from surface ice motion, Journal of Geophysical Research, 113, F03015, doi:10.1029/2007JF000925. abstract | pdf

Joughin, I., S. B. Das, M. King, B. Smith, I. M. Howat and T. Moon, 2008, Seasonal Speedup along the western flank of the Greenland Ice Sheet, Science, 320, 5877, 781-783, doi:10.1126/science.1153288, advanced publication in Science Express on April 17th, 2008. abstract | pdf

Das, S. B., I. Joughin, M. D. Behn, I. M. Howat, M. A. King, D. Lizarralde and M. P. Bhatia, 2008, Water-Driven Fracture Propagation to the Bed of the Greenland Ice Sheet During Supraglacial Lake Drainage, Science, 320, 5877, 778-781, doi:10.1126/science.1153360, advanced publication in Science Express on April 17th, 2008. abstract | pdf

Joughin, I., I. M. Howat, R. Alley, G. Ekstrom, M. Fahnestock, T. Moon, M. Nettles, T. Truffer, and V. Tsai., 2008, Ice front variation and tidewater behavior on Helheim and Kangerdlugssuaq Glaciers, Greenland, Journal of Geophysical Research- Earth Surface, 113, F01004, doi:10.1029/2007JF000837. abstract | pdf

2007

Howat, I. M., I. Joughin and T. Scambos, 2007, Rapid changes in ice discharge from Greenland outlet glaciers, Science, 315, 1559, doi:10.1126/science.1138478, advanced publication in Science Express on February 8, 2007. abstract | pdf

Howat, I. M., S. Tulaczyk, P. Rhodes, K. Israel and M. Snyder, 2007, A precipitation-dominated, mid-latitude glacier system: Mount Shasta , California, Climate Dynamics 28(1), 85-98, doi:10.1007/s00382-006-0178-9. abstract | pdf

2005

Howat, I. M. and S. Tulaczyk, 2005, Trends in spring snowpack over a half-century of climate warming in California, USA, Annals of Glaciology 40 , 151-156. abstract | pdf

Howat, I. M. and S. Tulaczyk, 2005, Climate sensitivity of spring snowpack in the Sierra Nevada, Journal of Geophysical Research-Earth Surface 110(F4), doi:10.1029/2005JF000356. abstract | pdf

Howat, I. M., I. Joughin, S. Tulaczyk and S. Gogineni, 2005, Rapid retreat and acceleration of Helheim Glacier, east Greenland, Geophysical Research Letters 32(22), doi:10.1029/2005GL024737. abstract | pdf

2003

Howat, I. M. and E. W. Domack, 2003, Reconstructions of western Ross Sea palaeo-ice-stream grounding zones from high-resolution acoustic stratigraphy, Boreas 32(1), 56-75, doi:10.1080/03009480310001038. abstract | pdf