Physical and Dynamic Climatology, every Spring Semester, undergraduate course, required, 3 credit hours.

Introduction to Atmospheric Sci, every Spring Semester, undergraduate course, required, 3-credit hours.

Micrometeorology, every Fall Semester, undergraduate course, elective, 3 credit hours.

Weather Observations and Measurements, every Fall Semester, undergraduate course, required, 3 credit hours.

Research Methods in Atmospheric Sci, every semester, undergraduate course, elective, 1 credit hour.

Research Interests

The general themes of my research are

* To better understand fundamental questions in eddy covariance theory and technique as well as canopy micrometeorology;

* To better understand the physical and biological processes and principles that govern the exchanges of radiation, heat, water, and trace gases between high-latitude terrestrial ecosystems and the atmosphere through both modeling and experimental approaches;

* To quantify their temporal and spatial variations in response to climate change and their possible feedbacks.

Keywords for Research Areas: Micrometeorology/Boundary Layer meteorology, Biosphere-Atmosphere Interactions and Climate, High-Latitude Climate Feedbacks.
 
 

Recent Journal Publications

Yi, S., A. D. McGuire, J. Harden, E. Kasischke, K. Manies, L. Hinzman, A. Liljedahl, J. Randerson, H.P. Liu, V. Romanovsky, S. Marchenko, and Y. Kim (2009), Interactions between soil thermal and hydrological dynamics in the response of Alaska ecosystems to fire disturbance, Journal of Geophysical Research, doi:10.1029/2008JG000841.

Liu, H.P., Y. Zhang, S. Liu, H. Jiang, L. Sheng, and Q. L. Williams (2009), Eddy covariance measurements of surface energy budget and evaporation in a cool season over southern open water in Mississippi, Journal of Geophysical Research., 114, D04110, doi:10.1029/2008JD010891.

Liu, H.P. (2009), A re-examination of density effects in eddy covariance measurements of CO2 fluxes, Advances in Atmospheric Sciences., 26: 9-16. doi10.1007/s00376-009-0009-0.

Williams Q. L., R. S. Reddy, H.P. Liu, M. S. Benjamin, D. Lu, K. M. Greene (2008), Comparison of total column ozone data from ground-based MFRSR measurements taken in the southern U.S. region with OMI satellite retrievals, Geophysical Research Letters, 35, L20813, doi:10.1029/2008GL035221.

Gao Z., R. Horton, L. Wang, H.P. Liu, and J. Wen (2008), An improved force-restore method for soil temperature prediction, European Journal of Soil Science, doi: 10.1111/j.1365-2389.2008.01060.x.

Liu H.P., J.T. Randerson (2008), Interannual Variability in Surface Energy Exchange Depends on Stand Age in a Boreal Forest Fire Chronosequence, Journal of Geophysical Research  113: G01006. doi:10.1029/2007JG000483.

Welp, L.R., J.T. Randerson, H.P. Liu (2007), The Sensitivity of Carbon Fluxes to Spring Warming and Summer Drought Depends on Plant Functional Type in Boreal Forest Ecosystems, Agricultural and Forest Meteorology, doi:10.1016/j.agrformet.2007.07.010.

Oncley, S.P., T. Foken, R. Vogt, W. Kohsiek, H. de Bruin, C. Bernhofer, A. Christen, D. Grantz, E. Lehner, C. Liebethal, H.P. Liu, M. Mauder, A. Pitacco, L. Ribeiro, and T. Weidinger (2007), The Energy Balance Experiment EBEX-2000. Part I: Overview and Energy Balance, Boundary-Layer Meteorology, DOI 10.1007/s10546-007-9161-1.

Mauder, M., S.P. Oncley, R. Vogt, T. Weidinger, L. Ribeiro, C. Bernhofer, T. Foken, W. Kohsiek, and H.P. Liu (2007), The Energy Balance Experiment EBEX-2000.  Part II: Intercomparison of Eddy-Covariance Sensors and Post-Field Data Processing Methods, Boundary-Layer Meteorology DOI 10.1007/s10546-006-9139-4.

Liu, H.P., J.T. Randerson, J. Lindfors, and W.J. Massman, T. Foken (2006), Consequences of Incomplete Surface Energy Balance Closure for CO2 Fluxes from Open-path CO2/H2O Infrared Gas Analyzers, Boundary-Layer MeteorologyDOI 10.1007/s10546-005-9047-z.

Randerson, J.T., H.P. Liu, M.G. Flanner, S.D. Chambers, Y. Jin, P.G. Hess, G. Pfister, M.C. Mack, K.K. Treseder, L.R. Welp, F.S. Chapin, J.W. Harden, M.L. Goulden, E. Lyons, J.C. Neff, E.A.G. Schuur, and C.S. Zender (2006), The Impact of Boreal Forest Fire on Climate Warming, Science 341, 1130-1132.

Amiro, B.D., A.L. Orchansky, A.G. Barr,T.A. Black, S.D. Chambers, F.S. Chapin III, M.L. Goulden, M. Litvak, H.P. Liu, J.H. McCaughey, and J.T. Randerson (2006), The Effect of Post-Fire Stand Age on the Boreal Forest Energy Balance, Agriculture and Forest Meteorology DOI 10.1016/J.agrformet.2006.02.014.

Liu, H.P. (2006), Reply to the Comment by Kowalski on 'An alternative Approach for CO2 Flux Correction Caused by Heat and Water Vapour Transfer', Boundary-Layer Meteorology DOI 10.1007/s10546-005-9042-4.

Welp, L.R., J.T. Randerson, and H.P. Liu (2006), The Effects of Stand Age on Seasonal Exchange of CO2 and d18O-CO2 in Boreal Forest Ecosystems of Interior Alaska, Journal of Geophysical Research  111,G03007,doi:10.1029/ 2005JG000126.

Liu, H.P. (2005), An Alternative Approach for CO2 Flux Correction Caused by Heat and Water Vapor Transfer, Boundary-Layer Meteorology 115, 151-168.

Liu, H.P., J.T. Randerson, J. Lindfors, F.S. Chapin III (2005), Changes in the Surface Energy Budget After Fire in Boreal Ecosystems of Interior Alaska: An Annual Perspective, Journal of Geophysical Research - Atmospheres 110, D13101, doi:10.1029/2004JD005158.

Liu, H.P., and J.C.L. Chan (2002), Boundary-Layer Dynamics Associated with a Severe Air-Pollution Episode in Hong Kong, Atmospheric Environment 36, 2013-2025.

Liu, H.P. and J.C.L. Chan (2002), An Investigation of Air-Pollutant Patterns under Sea-Land-Breezes during a Severe Air-Pollution Episode in Hong Kong, Atmospheric Environment 36, 591-601.

Liu H.Z., J.G. Sang, B.Y. Zhang, J.C.L. Chan, A.Y.S. Cheng,  H.P. Liu (2002), Influences of Structures on Urban Ventilation: A Numerical Experiment, Advances in Atmospheric Sciences 19, 1045-1054

Liu, H.P., J.C.L. Chan, and A.Y.S. Cheng (2001), Internal Boundary Layer Structure under Sea-Breeze Conditions in Hong Kong, Atmospheric Environment 35, 683-692.

Liu, S.H., H.P. Liu, M. Xu, M.Y. Leclerc, T.Y. Zhu, C.J. Jin, Z.X. Hong, J. Li, and H.Z. Liu (2001), Turbulence Spectra and Dissipation Rates above and within a Forest Canopy, Boundary-Layer Meteorology 98, 83-102.

Liu, H.P., B.Y. Zhang, J.G. Sang, J.C.L. Chan and A.Y.S. Cheng (2001), A Laboratory Simulation of Plume Dispersion in Stratified Atmosphere over Complex Terrain, Journal Wind Engineering & Industrial Aerodynamics 89, 1-15.

Liu, H.P., and T. Foken (2002), A Modified Bowen Ratio Method to Determine Sensible and Latent Heat Fluxes, Meteorologische Zeitschrift 11, 71-80.

Liu, H.P., G. Peters and T. Foken (2001), New Equations for Omnidirectional Sonic Temperature Variance and Buoyancy Heat Flux with a Sonic Anemometer, Boundary-Layer Meteorology 100, 459-468.

Sang, J.G., H.P. Liu, H.Z. Liu and Z.K. Zhang (2000), Observational and Numerical Studies of Wintertime Urban Boundary Layer, Journal Wind Engineering & Industrial Aerodynamics 87, 1-15.