P. ROSS EDWARDS

Associate Research Professor

EDUCATION:

Ph.D., Biogeochemistry, University of Tasmania, Institute for Antarctic and Southern Ocean Studies, 2000.
B.S., Applied Chemistry, RMIT University, Australia, 1994.

ACADEMIC AFFILIATIONS:

Graduate Program of Hydrologic Sciences - University of Nevada Reno

PROFESSIONAL INTERESTS:

Associate Professor Edwards is an ultra-trace environmental chemist whose research focuses on the input of ultra-trace chemical species and nanoparticles to the environment.  His expertise ranges from the analysis of polar ice-cores by high resolution inductively coupled plasma mass spectrometry to the analysis of black carbon in seawater.  As an inventor he has pioneered new analytical methods and created equipment that has allowed the continuous analysis of ice cores at the parts per quadrillion level and the routine analysis of black carbon nanoparticles in water. He is the director of the DRI black carbon hydrosol laboratory and deputy director of the DRI ultra-trace laboratory.

JOURNAL ARTICLES

Kirchner, P.; Biondi, F.; Edwards, R. ; McConnell, J.R. , 2008.

Variability of trace metal concentrations in Jeffrey pine (Pinus jeffreyi) tree rings from the Tahoe Basin, California, USA. Journal of Forest Research. v.13. pp.347-356. doi:10.1007/s10310-008-0093-5.

Banta, J.R.; McConnell, J.R. ; Edwards, R.; Engelbretch, J. , 2008.

Delineation of carbonate dust, aluminous dust, and sea salt deposition in a Greenland glaciochemical array using positive matrix factorization. Geochemistry, Geophysics, Geosystems (G3). v.19. n.7. doi:10.1029/2007GC001908.

McConnell, J.R.; Edwards, R. , 2008.

Coal burning leaves toxic heavy metal legacy in the Arctic. Proceedings of the National Academy of Sciences. doi:10.1073/pnas.0803564105.

McConnell, J.R.; Edwards, R.; Kok, G.L.; Flanner, M.G.; Zender, C.S.; Saltzman, E.S.; Banta, J.R.; Pasteris, D.R.; Carter, M.M.; Kahl, J.D.W. , 2007.

20th Century Industrial Black Carbon Emissions Altered Arctic Climate Forcing. Science. DOI: 10.1126/science.1144856.

McConnell, J.R. ; Aristarain, A.J.; Banta, J.R.; Edwards, P.R.; Simões, J.C., 2007.

20th Century Doubling in Dust Archived in an Antarctic Peninsula Ice Core Parallels Climate Change and Desertification in South America. Proceedings of the National Academy of Sciences. v.104. n.14. pp.5732-5748. doi:10.1073pnas.0607657104.

Edwards, R.R., 2007.

Long-term changes in the snow-firn pack stratigraphy on Glacier No. 1 in the Easatern Tianshan Mountains. Annals of Glaciology. v.46.

Edwards, R.R., 2006.

Seasonal variability of ionic concentrations in surface snow and elution processes in snow-firn packs at the PGPI site on Glacier No. 1 in eastern Tianshan, China. Annals of Glaciology. v.43.

Edwards, R.R., 2006.

Atmosphere-to-snow-to-firn transfer of NO3- on Glacier No. 1, eastern Tien Shan, China. Annals of Glaciology. v.43.

Edwards, R.R., 2006.

Iron in ice cores from Law Dome: A record of atmospheric iron deposition for maritime East Antarctica during the Holocene and Last Glacial Maximum. Geochemistry, Geophysics and Geosystems. v.7.

Carr, J.L.; Mcconnell, J.R.; Carter, K.S.; Garlington, C.; Romaggi, J.R.; Rogers, L.J.; Pool, K.; Edwards, R.R.; Ross, P.D., 2001.

Local to regional-scale variability of annual net accumulation on the Greenland ice sheet from PARCA cores. Journal of Geophysical Research. v.106.

Chang, W.H.; Mcconnell, J.R.; Martin, B.D.; Frayer, J.C.; Scott, M.J.; Ford jr, J.W.; Moran, M.A.; Edwards, R.R.; Odden, R.D., 2001.

Local to regional-scale variability of annual net accumulation on the Greenland ice sheet from PARCA cores. Journal of Geophysical Research. v.106.

Edwards, R.R.; Sedwick, P., 2001.

Iron in East Antarctic snow: Implications for atmoshperic iron deposition and algal production in Antarctic waters. Geophysical Research Letters. v.28. s.20. pp.3907-3910.

CONFERENCE ABSTRACTS

Edwards R.; McConnell J. R.; Aristarain A. J.; Curran M. A.; Pedro J. ; Cataldo M. ; Evangelista H. , 2008 (submitted).

Continuous high-temporal resolution black carbon ice core records from Antarctica. AGU FAll Meeting.

Banta, R.; McConnell, J.R. ; Edwards, R. ; Burkhart. J. ; Bales, R. , 2008.

GEOSummit baseline measurements, results, and interpretations of surface snow elemental concentrations. 2008 NOAA/ERSL Workshop. Boulder.

Edwards, R.; McConnell, J.R. ; Saltzman, E. ; Curran, M. , 2008.

WAIS black carbon project update. 2008 WAIS Divide Workshop. Denver, CO.

Edwards, R.; McConnell, J.R. , 2008.

Changing solubility of aeolian iron in the Arctic from Greenland ice cores. 2008 Goldschmidt Conference. Vancouver, BC.

McConnell, J.R.; Edwards, R. , 2008.

Historical black carbon concentrations and deposition rates from ice cores. 9th International Conference on Carbonaceous Particles in the Atmosphere (ICCPA). Berkeley, CA.

McConnell, J.R. ; Edwards, R. ; Thomas, L. ; Marshall, G. , 2008.

Aerosols & ice cores in the Antarctic Peninsula. 2008 workshop on Antarctic Peninsula Climate Change (APCC). Irvine, CA.

Edwards, R.; Li, Z. ; Wang, F. ; Li, H. ; Flanner, M. ; McConnell, J.R. , 2008.

Extreme black carbon snow concentrations from a retreating Chinese glacier. 9th International Conference on Carbonaceous Particles in the Atmosphere (ICCPA). Berkeley, CA.

Li Z.; Edwards R. ; Ming J.; Wang F.; Li H., 2008.

Effects of Post-Depositional Processes on Chemical Species in a Snow-Firn Pack on Urumqi Glacier No. 1 in Eastern Tianshan, China. AGU Fall Meeting. AGU. San Francisco.

McConnell, J.R.; Anschütz, H. ; Aristarain, A. ; Banta, R. ; Curran, M. ; Edwards, R. ; Ginoux, P. ; Pasteris, D. ; Pedro, J. ; Thomas, E. , 2008.

An Antarctic ice core array of dust concentration and flux. 2008 WAIS Divide Workshop. Denver, CO.

Edwards, R.; McConnell, J.R. , 2008.

Ultra-trace analysis of black carbon in water by single particle intracavity laser-induced incandescence. American Chemical Society 2008 National Meeting. New Orleans.

McConnell, J.R; Aristrain, A.J.; Curran, M.A.J.; Thomas, E.R. ; Banta, J.R. ; Edwards, R. , 2008.

New high-resolution records of dustiness over recent centuries from Greenland and Antarctic ice cores. 2008 Goldschmidt Conference. Vancouver, BC.

Edwards, R.; McConnell, J.R.; Aristarain, A.J.; Curran, M.A. ; Pedro, J. ; Cataldo, M. ; Evangelista, H. , 2008.

Continuous high-temporal resolution black carbon ice core records from Antarctica.

Bisiaux, M.; Edwards, H. ; McConnell, J.R. ; Aristarain, A.J.; Curran, M.A. ; Pedro, J. ; Cataldo, M. ; Evangelista, H. , 2008.

Seasonal cycle of black carbon in Antarctic ice cores.

Zender, C.S.; Flanner, M.G.; Randerson, J.T.; Mahowald, N.; Rasch, P.J.; Yoshioka, M.; Painter, T.H.; McConnell, J.R.; Edwards, R., 2007.

Present, Past, and Future Climate Effects and Efficacy of Dirty Snow. International Association of Meteorology and Atmospheric Sciences (IAMAS) Scientific Assembly, Symposium on Earth System Interactions. Perugia, Italy.

McConnell, J.; Aristarain, A.; Ginoux, P.; Edwards, R.; Pasteris, D.; Simoes, J., 2007.

The Impact of South American Climate Change & Desertification on Atmospheric Dust over West Antarctica & the Antarctic Peninsula. Multidisciplinary Workshop on Southern South American Dust. Puerto Madryn, Argentina.

McConnell, J.R., ; Edwards, R.; Kok, G.L; Flanner, M.G.; Zender, C.S.; Saltzman, E.S.; Banta, J.R.; Pasteris, D.R.; Carter, M.M.; Kahl, J.D.W., 2007.

Concentrations and Sources of Soot in Greenland Precipitation from 1788 to 2002: Implications for Radiative Forcing. American Geophysical Union Fall Meeting. San Francisco.

McConnell, J.; Aristarain, A.; Edwards, R., 2007.

Accumulation, Dust, & Pollution Record in the Antarctic Peninsula. Presented at the 2007 PARCA/NASA Workshop at the Jet Propulsion Laboratory. Pasadena CA.

Banta, J. R.; McConnell, J. R.; Edwards, R.; Burkhart, J.; Bales, R., 2007.

GEOSummit Baseline Measurements: Results and Interpretations of Surface Snow Elemental Concentrations. American Geophysical Union Fall Meeting. San Francisco.

Edwards, R.; McConnell, J.; Aristarain, A., 2007.

Linkages between Soot Deposition to West Antarctica, James Ross Island and Mid-Latitude Drought. Presented at the WAIS Divide Investigators Meeting. Kings Beach, CA.

Banta, J. R.; McConnell, J. R.; Edwards, R., 2007.

Spatial and temporal variability in snow accumulation at WAIS Divide over recent centuries. WAIS Divide Science Meeting. Kings Beach.

McConnell, J. R.; Aristarian, A. J.; Banta, J. R.; Curran, M.; Edwards, P. R.; Ginoux, P.; Pasteris, D.; Pedro, J.; Thomas, L., 2007.

Preliminary ultra-trace results: The WAIS Divide Dust Record in the context of an Antarctic Ice Core Array. WAIS Divide Science Meeting. Kings Beach.

Banta, J.; Mcconnell, J.R.; Edwards, R.R., 2006.

The Influence of Arctic Oscillation Variability on Greenland Glaciochemical Ice Core Records. AGU. San Francisco, CA.

Mcconnell, J.R.; Aristarain, A.J.; Banta, J.; Edwards, R.R., 2006.

Atmospheric dust over the Antarctic Peninsula and climate change in South America,. AGU. San Francisco, CA.

Mcconnell, J.R.; Aristarain, A.J.; Edwards, R.R.; Banta, J., 2006.

1835 to 1998 High-Resolution Record of Atmospheric and Precipitation Chemistry from James Ross Island, Antarctica. Tasmania.

Edwards, R.R.; Mcconnell, J.R., 2005.

Changes in Atmospheric Flux of Iron to Arctic over past 100 yr. AGU. San Francisco, CA.

Mcconnell, J.R.; Edwards, R.R.; Banta, J., 2005.

A novel method for high-resolution, broad spectrum ice core analyses using ICP-OES and dual HR-ICP-MS. European Geophysical Society XXX General Assembly.

Edwards, R.R.; Mcconnell, J.R.; Banta, J., 2005.

The ultra-trace analysis of Polar Ice Cores using a continuous metler HR-ICPMS: A new tool for reconstructing the chemical history of the atmosphere. Sydney, Australia.

Banta, J.; Mcconnell, J.R.; Edwards, R.R., 2005.

High-Resolution Sea Salt and Dust Records Over Past Centuries From Greenland Ice Cores. American Geophysical Union. San Francisco, CA.

Banta, J.; Mcconnell, J.R.; Lamorey, G.W.; Edwards, R.R.; Frey, M., 2004.

Correlation of atmospheric circulation indexes with high resolution trace element flux records from West Antarctica. Bremen, Germany.

Huggins, A.W.; Edwards, R.R.; Mcconnell, J.R., 2004.

Summary of trace chemical and physical measurements of snowfall in two Nevada cloud seeding target areas. San Diego, CA.

Banta, J.; Mcconnell, J.R.; Edwards, R.R., 2004.

Source apportionment mixing models for high resolution trace element ice core records over the past 350 years at Siple Dome, Antarctica. AGU. San Francisco, CA.

Edwards, R.R.; Mcconnell, J.R.; Banta, J.; Solter-Goss, D., 2004.

Decadal to century scale variability in the atmospheric dposition of iron to Siple Dome during the past 400 yr. Bremen, Germany.

Mcconnell, J.R.; Edwards, R.R.; Kahl, J.D.; Burkhart, J.F.; Bales, R.C., 2004.

Ultra-trace surface snow chemistry at Summit, Greenland: July 2003 to August 2004. AGU. San Francisco, CA.

Banta, J.; Mcconnell, J.R.; Lamorey, G.W.; Edwards, R.R.; Frey, M., 2003.

High-resolution dust flux records at Siple Dome and other West Antarctic sites. AGU. San Francisco, CA.

Edwards, R.R.; Zhongqin, L.; Tandong, Y., 2003.

Black carbon in snow from the Tian Shan Mountains, Northwest China. CA. San Francisco, CA.

Mcconnell, J.R.; Edwards, R.R.; Banta, J.; Solter-Goss, D., 2003.

A novel analytical approach greatly expnds ice core records of climate change and industrial pollution. Seattle, WA.

CURRENT RESEARCH

Dr. Edwards’ current research focuses on the history of fire emissions, its relationship to climate, atmospheric composition, trace metal biogeochemical cycles and the distribution of black carbon in the ocean.