Bill Massman
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240 West Prospect
Ft. Collins, CO 80526
Phone: (970) 498-1296
FAX: (970) 498-1212
wmassman@fs.fed.us |
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Atmospheric Scientist and Forest Micrometeorologist |
Conducts research to quantify atmospheric-biospheric interactions,
including the use of eddy covariance technology to study the exchange of trace
gases (carbon dioxide, water, ozone) between the atmosphere and the earth's surface (vegetation, soil, and snow). |
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Educational Background
Ph.D., University of Wisconsin, Madison, 1978, Meteorology
M.S.., University of Wisconsin, Madison, 1973, Meteorology
M.S.., University of Wisconsin, Madison, 1970, Physics
B.S., University of Missouri, Columbia, 1969, Physics
Professional Experience
1986 – present. Atmospheric Scientist and Forest Micrometeorologist,
USDA Forest Service, Rocky Mountain Research Station
1985- 1986, National Research Council Senior Postdoctoral Fellow,
NASA/Goddard Space Flight Center, Greenbelt, MD
1982-1985, Assistant Scientist/Senior Systems Analyst, Applied
Research Corporation, Landover, MD
Selected Recent Publications
Impacts of Wildfire on Soils
Massman, W.J.; Frank, J.M. 2005. The effect of a controlled burn on the
thermophysical properties of a dry soil using a new model of soil heat
flow and a new high temperature heat flux sensor. International Journal
of Wildland Fire. 13: 427-442.
Massman, W.J.; Frank, J.M.; Shepperd, W.D.; Platten, M.J. 2003.
In situ soil temperature and heat flux measurements during controlled
surface burns at a southern Colorado forest site. In: Omi, P.N.;
Joyce, L.A., tech. eds. Fire, fuel treatments, and ecological restoration:
Conference proceedings; 2002 April 16-18; Fort Collins, CO. Proc.
RMRS-P-29. Fort Collins, CO: U.S. Department of Agriculture, Forest
Service, Rocky Mountain Research Station: 69-87.
Eddy Covariance
Lee, X.; Massman, W.; Law, B. 2004. Handbook of micrometeorology: a
guide for surface flux measurement and analysis. Dordrecht, The Netherlands:
Kluwer Academic Publishers. 250 p.
Massman, W.; Clement, R. 2004. Unvertainty in eddy covariance flux estimates
resulting from spectral attenuation. In: Lee, X.; Massman, W.; Law, B., eds.
Handbook of micrometeorology: a guide for surface flux measurement and analysis.
Dordrecht, The Netherlands: Kluwer Academic Publishers: 67-99.
Massman, W. 2004. Concerning the measurement of atmospheric trace gas fluxes
with open- and closed-path eddy covariance system: the WPL terms and spectral
attenuation. In: Lee, X.; Massman, W.; Law, B., eds. Handbook of micrometeorology:
a guide for surface flux measurement and analysis. Dordrecht, The Netherlands:
Kluwer Academic Publishers: 133-160.
Massman, W.J.; Lee, X. 2002. Eddy covariance flux corrections and
uncertainties in long-term studies of carbon and energy exchanges.
Agricultural and Forest Meteorology. 113: 121-144.
Massman, W.J. 2000. A simple method for estimating frequency response
corrections for eddy covariance systems. Agricultural and Forest
Meteorology. 104: 185-198.
Massman, W.J. 1991. The attenuation of concentration fluctuations
in turbulent flow through a tube. Journal of Geophysical Research.
96: 15,269-15,273.
Ozone Deposition
Massman, W.J. 2004. Toward an ozone standard to protect vegetation
based on effective dose: a review of deposition resistances and a
possible metric. Atmospheric Environment. 38: 2323-2337.
Massman, W.J.; Musselman, R.C.; Lefohn, A.S. 2000. A conceptual
ozone dose-response model to develop a standard to protect vegetation.
Atmospheric Environment. 34: 745-759.
Massman, W.J.; Pederson, J.; Delany, A.; Grantz, D.; den Hartog,
G.; Neumann, H.H.; Oncley, S.P.; Pearson Jr., R.; Shaw, R.H. 1994.
An evaluation of the RADM surface module for ozone uptake at three
sites in the San Joaquin Valley of California. Journal of Geophysical
Research. 99(D4): 8281-8294.
Pressure Pumping
Takle, E.S.; Massman, W.J.; Brandle, J.R.; Schmidt, R.A.; Zhou,
X.; Litvina, I.V.; Garcia, R.; Doyle, G.; Rice, C.W. 2004. Influence
of high-frequency pressure pumping on carbon dioxide efflux from
soil. Agricultural and Forest Meteorology. 124: 193-206.
Takle, E.S.; Brandle, J.R.; Schmidt, R.A.; Garcia, R.; Litvina,
I.V.; Massman, W.J.; Zhou, X.; Doyle, G.; Rice, C.W. 2003. High-frequency
pressure variations in the vicinity of a surface CO2 flux chamber.
Agricultural and Forest Meteorology. 114: 245-250.
Takle, E.S.; Brandle, J.R.; Schmidt, R.A.; Garcia, R.; Litvina,
I.V.; Doyle, G.; Zhou, X.; Hou, Q.; Rice, C.W.; Massman, W.J. 2000.
Pressure pumping of carbon dioxide from soil. In: 24th Conference
on Agricultural and Forest Meteorology; 2000 August 14-18; Davis
CA. Boston: American Meteorological Society: 190-191.
Massman, W.J.; Sommerfeld, R.A.; Mosier, A.R.; Zeller, K.F.; Hehn,
T.J.; Rochelle, S.G. 1997. A model investigation of turbulence-driven
pressure-pumping effects on the rate of diffusion of CO2, N2O, and
CH4 through layered snowpacks. Journal of Geophysical Research.
102(Dl5): 18,851-18,863.
Mathematical and Computer Modeling
Su, Z.; Schmugge, T.; Kustas, W.P.; Massman, W.J. 2001. An evaluation
of two models for estimation of the roughness height for heat transfer
between the land surface and the atmosphere. Journal of Applied
Meteorology. 40: 1933-1951.
Massman, W.J. 1999. A model study of kBH-1 for vegetated
surfaces using `localized near-field' Lagrangian theory. Journal
of Hydrology. 223: 27-43.
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