Michael DeGrandpre - Professor of Chemistry
Office Location: Chem 318A Office Telephone: 406-243-4118 E-mail: michael.degrandpre@umontana.edu |
Description:
Mike DeGrandpre received his Ph.D. in Analytical Chemistry from the University of Washington in 1990. He carried out postdoctoral research at Woods Hole Oceanographic Institution in Massachusetts from 1990 to 1993 and held a research associate position there from 1993 through 1995. Michael joined UM in January of 1996. Professor DeGrandpre is an analytical/environmental chemist specializing in aquatic biogeochemistry and the development of autonomous chemical sensors for aquatic chemistry research.
Research Interests:
My research focuses on the development of autonomous chemical sensors for applications in aquatic (marine and freshwater) chemistry. One of our primary goals is to further our understanding of CO2’s sources and sinks within the world's oceans. Our research has resulted in the development of autonomous CO2 and pH sensors (the Submersible Autonomous Moored Instruments or SAMIs). By deploying the SAMI sensors on ocean moorings and other unmanned platforms, we have determined to what extent processes such as photosynthesis and air-sea gas exchange control CO2 variability. These results will help develop models to predict the effects of global warming and ocean acidification (the decrease in ocean pH caused by anthropogenic CO2). Our recent field work has primarily focused on the processes that control CO2 in both freshwater (rivers and lakes) and marine environments. To date, SAMIs have been deployed in all ocean basins except the Indian Ocean.
Courses:
Chemistry 421 Syllabus and Lab Manual
Selected Publications:
Lynch, J.K., Beatty, C.M., Seidel, M.P., Jungst, L.J. and M.D. DeGrandpre. (2010). Controls of riverine CO2 over an annual cycle determined using direct, high temporal resolution pCO2 measurements, Journal of Geophysical Research – Biogeosciences, accepted.
Parker, S.R, Gammons, C.H., Poulson, S.R., DeGrandpre, M.D., Weyer, C.L., Smith, M.G., Babcock, J.N., and Y. Oba. (2010). Diel behavior of stable isotopes of dissolved oxygen and dissolved inorganic carbon in rivers over a range of trophic conditions, and in a mesocosm experiment, Chem. Geol., 269, 22–32.
Byrne, R.H., DeGrandpre, M.D., Short, R.T., Martz, T.R., Merlivat, L., McNeil, C., Sayles, F.L., Bell, R. and P. Fietzek. (2009). Sensors and systems for observation of marine CO2 system variables, Proceedings for Ocean Obs ’09, Venice, Italy (refereed).
Martz, T.M., DeGrandpre, M.D., Strutton, P.G., McGillis, W.R. and W. Drennan. (2009). Sea surface pCO2 and carbon export during the Labrador Sea spring-summer bloom: an in situ mass balance approach, J. Geophys. Res. - Oceans, 114, C09008, doi:10.1029/2008JC005060.
Seidel, M.P., DeGrandpre, M.D. and A.G. Dickson. (2008). A sensor for in situ indicator-based measurements of seawater pH, Mar. Chem., 109, 18–28.
Yuan, S. and M.D. DeGrandpre. (2008). Evaluation of indicator-based pH measurements for freshwater over a wide range of buffer intensities, Environ. Sci. Technol., 42, 6092-6099.
For a full list of publications, please view DeGrandpre Publications