ESSL LAR

Roy Rasmussen

 

Senior Scientist - Deputy Director TIIMES
TIIMES - RAL
BEACHON & WCAS

 

Contact Information:
PO Box 3000, Boulder, CO 80307-3000
Office: FL2 - 3002
Telephone: 303-497-8430
Email: rasmus@ucar.edu
Home Page

Roy Rasmussen
 

Project Summary:

SWANS

Click on picture to view the entire figure.


Society, Water, the Atmosphere, and Natural Systems (SWANS): The Colorado Headwaters effort will examine snowpack changes dues to climate change and impacts on water resources and management.

I spent most of my time on TIIMES this year leading and coordinating the Water Cycle Program. The major activities have been running a retreat, holding steering committee meetings, giving presentations, coordinated a monthly Water Cycle talk at the NCAR Directors meeting, and having monthly Convective Parameterization meetings of a group of Water Cycle and other interested NCAR and University scientists. This later meeting has worked well, with a number of new an exciting avenues identified for this type of work at NCAR. I also spent a lot of time working to put together the BEACHON project in collaboration with Alex Guenther and Beth Holland. I have also helped with BEACHON and TIIMES retreat planning.

Scientifically I am working with Changhai Liu to conduct a study on the impact of aerosol particles on the formation of precipitation over the Continental U.S. using a cloud resolving model.

I wrote a white paper describing the new Colorado Headwaters Program. This program will start 1 October 2007 and will entail an investigation of the impacts of the climate change on snowpack in the Colorado mountains using a high resolution model. This will become my main scientific focus of Water Cycle research in the future.
 

Presentations:

  • Overview of the NCAR Water Cycle, Austin USA, January 2007
  • Real-time measurement of liquid equivalent snowfall rate using ground based, Laramie USA, December 2006
 

TIIMES External Collaborators:

Paolo Artaxo, University of São Paulo
Roni Avissar, Duke University
Paul Brooks, University of Arizona
Antonio Busalacchi, University of Maryland
Antonio Busalacchi, University of Maryland - Earth System Science Interdisciplinary Center (ESSIC)
Robert Dickinson, Georgia Institute of Technology
Rong Fu, Georgia Institute of Technology
Istvan Geresdi, University of Pécs
Peter Hildebrand, Goddard Space Flight Center (GSFC) - NASA
Paul Houser, George Mason University - CREW
Brian Lamb, Washington State University
Luciene Lara, University of São Paulo
Zong-Liang Liang, University of Texas
Jana Milford, University of Colorado
Dev Niyogi, Purdue University
Zaitao Pan, St. Louis University
Josep Penuelas, Consejo Superior de Investigaciones Científicas (CSIC) - Ctr for Ecological Research & Forestry (CREAF)
Christa Peters-Lidard, Goddard Space Flight Center (GSFC) - NASA
David Randall, Colorado State University
Steve Running, University of Montana-Missoula
Mark Sutton, Centre for Ecology and Hydrology
Daqing Yang, University of Alaska, Fairbanks
Xubin Zeng, University of Arizona
 

Publications:

Gochis, D. J., G. Bonan, E. Brandes, F. Chen, D. Lenschow, M. LeMone, R. Rasmussen, T. T. Warner, M. Ek, K. Mitchell, 2007: A ten-year vision for advancing coupled land-atmosphere prediction. Water Resources Research. (Submitted)

Brandes, E. A., K. Ikeda, G. Zhang, M. Schoenhuber, R. M. Rasmussen, 2007: A statistical and physical description of hydrometeor distributions in Colorado snowstorms using a video disdrometer. J. Appl. Meteor. Climat., 46, 634-650.

Rasmussen, R., A. Dai, K. E. Trenberth, 2007: Impact of climate change on precipitation. Chapter 16. Large-scale Disasters: Prediction, Control and Mitigation, Mohamed Gad-el-Hak, Ed., Cambridge University Press, 453-472.

Tardif, R., R. M. Rasmussen, 2007: Event-based climatology and typology of fog in the New York City region. J. Appl. Meteor. Climat., 46(8), 1141-1168.

Ikeda, K., R. M. Rasmussen, W. Hall, G. Thompson, 2007: Observations of freezing drizzle in extratropical cyclonic storms during IMPROVE-2. J. Atmos. Sci., 64, 3016-3043, doi: 10.1175/JAS3999.1.

Rasmussen, R. M., C. Wade, F. Hage, S. Landolt, M. Tryhane, J. Cole, A. Ramsay, D. Fleming, R. K. Moore, A. Davis, B. Reis, T. Lisi, M. Kjolleberg, K. M. Rosenlund, 2006: New ground deicing hazard associated with freezing drizzle ingestion by jet engines. J. Aircraft, 43(5), 1448-1457.