Research Interests: My research interests include ecosystems modeling, environmental sensor networks, landscape carbon cycling, and biological and hydrological interactions.

Research Projects:

RCN: Advancing lake ecology by building an international community to exploit innovations in sensor network technology (RCNLakes.org)

Global Lake Ecological Observatory Network (GLEON).

North Temperate Lakes Long Term Ecological Research Program (NTL LTER).

Collaborative Research: Automating Scaling and Data Processing in a Network of Sensors: Towards a Global Network for Lake Metabolism Research and Education. http://lakemetabolism.org

Hydrologic and biogeochemical fluxes in regional land-water mosaics.

Toward a distributed information system for marine biology and limnology.

WiscFish, a Computer-based fish identification system.

Fish Bioenergetics.

see also: CNN Article ; Science Magazine Article

Recent publications:

Porter, J., E. Nagy, P.C. Hanson, T.K. Kratz, S. Collins, and P.A. Arzberger. In press. New Eyes on the World: Advanced Sensors for Ecology. Bioscience.

Hanson, P.C., S.R. Carpenter, N. Kimura, C. Wu, S.P. Cornelius, and T.K. Kratz. In press. Evaluation of metabolism models for free-water dissolved oxygen methods in lakes. Limnol. Oceanagr. Methods

Coloso, J.J., J.J. Cole, P.C. Hanson, and M.L. Pace. In press. Depth-integrated, continuous, estimates of metabolism in a clear-water lake. Can. J. Fish. Aquat. Sci. 65:712-722.

Tsai, J.W., T.K. Kratz, P.C. Hanson, J.T. Wu, W.Y.B. Chang, P.W. Arzberger, B.S. Lin,  F.P. Lin, H.M. Chou, C.Y. Chiu.  In press. Seasonal dynamics and regulation of lake metabolism in a subtropical humic lake.  Freshwater Biology. 53:1929-1941.

Tilak, S., P. Arzberger, B. Benson, R. Bhalerao, K. Chiu, T. Fountain, D. Hamilton, P. Hanson, T.K. Kratz, F.P. Lin, and L. Winslow. 2007. Conceptual Challenges and Practical Issues in Building The Global Lake Ecological Observatory Network. ISSNIP07 conference proceedings.

Hanson, P.C. A grassroots approach to sensor and science networks. 2007. Frontiers in Ecology and the Environment. 5(7): 343.

Hanson, P.C., S.R. Carpenter, J.A. Cardille, M.T. Coe, and L.A. Winslow. 2007. Small lakes dominate a random sample of regional lake characteristics. Freshwater Biology. 52: 814-822.

Carpenter, S.R., B.J. Benson, R. Biggs, J.W. Chipman, J.A. Foley, S.A. Golding, R.B. Hammer, P.C. Hanson, P.T.J. Johnson, A.M. Kamarainen, T.K. Kratz, R.C. Lathrop, K.D. McMahon, B. Provencher, J.A. Rusak, C.T. Solomon, E.H. Stanley, M.G. Turner, M.J. Vander Zanden, C.-H. Wu and H. Yuan.  2007.  Understanding regional change:  Comparison of two lake districts. BioScience. 57(4): 323-335.

Cardille, J. A., Carpenter, S. R., Coe, M. T., Hanson, P. C., Foley,  J. A., Turner, M. G., and J. A. Vano. 2007. Integrating carbon and water cycling in lake-rich landscapes: effects of landscape connections on lake hydrology and biogeochemistry. Journal of Geophysical Research - Biogeosciences. 112, G02031, doi:10.1029/2006JG000200.

Kratz, Timothy K., Peter Arzberger, Barbara J. Benson, Chih-Yu Chiu, Kenneth Chiu, Longjiang Ding, Tony Fountain, David Hamilton, Paul C. Hanson, Yu Hen Hu, Fang-Pang Lin, Donald F. McMullen, Sameer Tilak, Chin Wu. 2006. Towards a Global Lake Ecological Observatory Network.  Publications of the Karelian Institute 145:51-63. (http://www.gleon.org/Gleon_Kratz_etal_2006.pdf)

Hanson, P.C., S.R. Carpenter, D. Armstrong, E.H. Stanley, and T.K. Kratz. 2006. Lake dissolved inorganic carbon and dissolved oxygen: changing drivers from days to decades. Ecological Monographs. 76(3): 343-363.

Lyons, J., P.C. Hanson, E.A. White. 2006. A photo-based computer system for identifying Wisconsin fishes. Fisheries. 31: 269-275.

Lauster, G. H., P. C. Hanson, and T.K. Kratz. 2006. Gross primary production and respiration differences among littoral and pelagic habitats in North Temperate lakes. Canadian Journal of Fisheries and Aquatic Sciences. 63(5): 1130-1141.

Porter, J., P. Arzberger, P. Hanson, T. Kratz, S. Gage, T. Williams, S. Shapiro, P. Bryant, F. Lin, H. King, T. Hansen, H. Braun, W. Michener. 2005. Wireless sensor networks for ecology. Bioscience. 55: 561-572.

Hanson, P.C., Y.H. Hu, T.K. Kratz, P. Shin. 2005. Lake metabolism variability: Identifying physical and biological events using support vector machine. Departmental report CFL-05-01. (http://limnology.wisc.edu/personnel/hanson/reprints/cfl_05_01.pdf)

Benson, B. J., P. C. Hanson, J. W. Chipman, and C. J. Bowser. 2004. Breaking the data barrier: research facilitation through information management. Chapter 13 in Long-Term Ecological Research of North Temperate Lakes: Dynamics of Lakes in the Landscape. J. J. Magnuson, T. K. Kratz, and B. B. Benson, eds. Oxford University Press.

Hanson, P. C., A. Pollard, D. L. Bade, K. Predick, S. R. Carpenter, and J. Foley. 2004. A model of carbon evasion and sedimentation in temperate lakes. Global Change Biology. 10: 1285-1298.

Bade, D. L., S. R. Carpenter, J. J. Cole, P. C. Hanson, and R. H. Hesslein. 2003. Controls of d13C-DIC in lakes: Geochemistry, lake metabolism, and morphometry. Limnol. Oceanogr. 49: 1160-1172.

Hanson, P.C., Bade, D. L., Carpenter, S. R., and T. K. Kratz. 2003. Lake metabolism: Relationships with dissolved organic carbon and phosphorus. Limnol. Oceanogr. 48: 1112-1119.

Harvey, C.J., P.C. Hanson, T.E. Essington, P.B. Brown, and J.F. Kitchell. 2002. Using bioenergetics models to predict stable isotope ratios in fishes. Canadian Journal of Fisheries and Aquatic Sciences. 59: 115-124.