Teaching interests: Atmospheric physics, boundary layer meteorology, atmospheric carbon cycle, observational methods.

Terrestrial ecosystems and the atmosphere are linked via the atmospheric boundary layer, the lowest layer of the atmosphere characterized by turbulent flows and rapid response to changes in the earth's surface. Ecosystem-atmosphere interactions are important to climate and weather. Dr. Davis studies these interactions via observations of the atmospheric boundary layer, especially turbulent flux measurements. His current research focuses on observations of the carbon dioxide budget of the atmosphere, and interactions between ecosystem processes and boundary layer development.

Selected Publications:

Patton, E.G., K.J. Davis, M.C. Barth, C.-H. Moeng and P.P. Sullivan, Decaying scalars emitted by a forest canopy:  A numerical study.  In press, Boundary-Layer Meteorology.

Yi, C., K.J. Davis, P.S. Bakwin, and B.W. Berger, Long-term observations of the evolution of the planetary boundary layer.  In press, J. Atmos. Sci.

Berger, B.W., K.J. Davis, P.S. Bakwin, C. Yi and C. Zhao, Tall-tower observations of carbon dioxide fluxes over a northern forest: Flux measurement methodology.   In press, J. Atmos. Oceanic Tech.

Haszpra, L., Barcza, Z., Bakwin, P. S., Berger, B. W., Davis, K. J., Weidinger, T., Measuring system for the long-term monitoring of biosphere/atmosphere exchange of carbon dioxide.  In press, J. Geophys. Res.

Kuck, L.R., T. Smith, B.B. Balsley, D. Helmig, T.J. Conway, P.P. Tans, K.J. Davis, M. Jensen, J.A. Bognar, R. Vazquez Arrieta, R. Rodriquez and J.W. Birks, 2000.  Measurements of landscape-scale fluxes of carbon dioxide in the Peruvian Amazon by vertical profiling through the convective boundary layer.  J. Geophys. Res., 105, 22,137-22,146.

Davis, K.J., N. Gamage, C. Hagelberg, D.H. Lenschow, C. Kiemle and P.P. Sullivan, 2000. An objective method for determining atmospheric structure from airborne lidar observations. J. Atmos. Oceanic Tech., 17, 1455-1468.

Yi, C., K.J. Davis, P.S. Bakwin, B.W. Berger, and L. C. Marr,  2000. The influence of advection on measurements of the net ecosystem-atmosphere exchange of CO₂ observed from a very tall tower, J. Geophys. Res. 105, 9991-9999.

Baker, J.M., K.J. Davis and G.C. Liknes, 1999.  Surface energy balance and boundary layer development during snowmelt, J. Geophys. Res., 104, 19611-19621.

Greenberg, J.P., A. Guenther, P. Zimmerman, W. Baugh, C. Geron, K. Davis, D. Helmig and L. Klinger, 1999. Tethered balloon measurements of biogenic VOCs in the atmospheric boundary layer.  Atmos. Environ., 33, 855-867.

Giez, A., G. Ehret, R. L. Schwiesow, K. J. Davis and D. H. Lenschow, 1999. Water vapor flux measurements from ground-based vertically-pointed water vapor differential absorption and Doppler lidars, J. Oceanic Atmos. Tech., 16, 237-250.

Helmig, D.H., B. Balsley, K. Davis, L.R. Kuck, M. Jensen, J. Bogner, T. Smith, R.V. Arrieta, R. Rodriguez and J.W. Birks, 1998. Vertical profiling and determination of landscape fluxes of biogenic nonmethane hydrocarbons within the planetary boundary layer in the Peruvian Amazon, J. Geophys. Res., 103, 25519-25532.

Angevine, W.M., P.S. Bakwin and K.J. Davis, 1998. Wind profiler and RASS measurements compared with measurements from a tall tower, J. Oceanic Atmos. Tech., 15, 818-825.

Kiemle, C., G. Ehret, K.J. Davis, D.H. Lenschow and S.P. Oncley, 1998, Airborne Water Vapor Differential Absorption Lidar Studies of the Convective Boundary Layer, in Buoyant Convection in Geophysical Flows, E. Fedorovich, editor, Kluwer Academic Press.

Davis, K. J., D. H. Lenschow, S. P. Oncley, C. Kiemle, G. Ehret and A. Giez, 1997: The role of entrainment in surface-atmosphere interactions over the boreal forest. J. Geophys. Res., 102, 29219-29230.

Kiemle, C., G. Ehret, A. Giez, K. J. Davis, D. H. Lenschow and S. P. Oncley, 1997: Estimation of boundary-layer humidity fluxes and statistics from airborne DIAL.  J. Geophys. Res., 102, 29189-29204.

Oncley, S.P., D.H. Lenschow, K.J. Davis, T.L. Campos and J. Mann, 1997: Regional-scale surface flux observations across the boreal forest during BOREAS. J. Geophys. Res., 102, 29147-29154.

Bonan, G.B., K.J. Davis, D.D. Baldocchi, D. Fitzjarrald and H. Neumann, 1997: Comparison of the NCAR LSM1 land surface model with BOREAS aspen and jack pine tower fluxes. J. Geophys. Res., 102, 29065-29076.

Sun, J., D. H. Lenschow, L. Mahrt, T. L. Crawford, K. J. Davis, S. P. Oncley, J. I. MacPherson, Q. Wang, R. J. Dobosy, and R. L. Desjardins, Lake-induced atmospheric circulations during BOREAS, 1997: J. Geophys. Res., 102, 29155-29166.

Guenther, A., P. Zimmerman, L. Klinger, J. Greenberg, C. Ennis, K. Davis, W. Pollock, H. Westberg, G. Allwine and C. Geron, 1996: Estimates of regional natural volatile organic compound fluxes from enclosure and ambient concentration measurements. J. Geophys. Res., 101, 1345-1359.

Ehret, G., A. Giez, C. Kiemle, K. J. Davis, D. H. Lenschow, S. P. Oncley and R. D. Kelly, 1996: Airborne water vapor DIAL and in situ observations of a sea-land interface. Contrib. Atmos. Physics, 69, 215-228.

Guenther, A., W. Baugh, K. Davis, G. Hampton, P. Harley, L. Klinger, P. Zimmerman, E. Allwine, S. Dilts, B. Lamb, H. Westberg, D. Baldocchi, C. Geron and T. Pierce, 1996: Isoprene fluxes measured by enclosure, relaxed eddy accumulation, surface-layer gradient, mixed-layer gradient, and mass balance techniques, J. Geophys. Res., 101, 18555-18567.