Adjunct Faculty

Alexander S KolkerAlexander S. Kolker
Adjunct  Professor

Phone: 504-862-3167
Fax: 504-865-5199

Department of Earth and Environmental Sciences
Room 101A Blessey Hall
New Orleans, LA 70118

In the News


Ph.D., Stony Brook University, State University of New York, 2005
M.A., Stony Brook University, State University of New York, 2000
B.A., University of California, Santa Cruz, 1995

Research Interests

I am interested in the natural, climatic, and anthropogenic processes that govern coastal systems during times of stasis and change. Specific interests include:

  • Determining the balance between subsidence and sedimentation in Barataria Bay.
  • Understanding how sedimentary and biogeochemical processes govern patterns of marsh development and loss.
  • The role of atmospheric variability in short-term sea level dynamics.
  • Radioisotope geochemistry.
  • Coastal biogeochemistry.


Shields, M.R., Bianchi,T.S., Mohrig, D.,Hutchings, J., Kenny, W.F., Kolker, A.S., Curtis, J.H., (2017). Carbon storage in the Mississippi River delta enhancedby environmental engineering. Nature Geoscience. DOI: 10.1038/NGE03044

Coleman, D.J., Kolker, A.S., Johannesson, K.H., (2016) Submarine groundwater discharge and alkaline earth dynamics in a deltaic coastal setting. Hydrology Research. 48(5): 1169-1176

Amer, R., Kolker, A.S., Muscietta, A., (2017). Propensity for erosion and deposition in a deltaic wetland complex: Implications for river management and coastal restoration. Remote Sensing of Environment 199:39-50.

Peyronnin, N. Caffey. R.H., Cowan, J.H., Justic, D., Kolker, A.S., Laska, S. McCorquodale, A., Melanson, E., Nyman, J.A., Twilley, R.R., Visser, J.M., Wilkins, J.G., (2017) Optimizing sediment diversion operations: Working group recommendations integrating complex ecological and social landscapes. Water 9(6): 368; doi:10.3390/w9060368.

Telfeyan, K., Breaux, A., Kim, J., Cable, J.E., Kolker, A.S., Johanesson, K.H. (2017). Arsenic and vanadium biogeochemistry in a deltaic wetland, southern Louisiana, USA Marine Chemistry. 192: 32-48

Z. D., Sericano, J.L., Wade, T.L., Bianchi, T.S., Marcantonio, F., Kolker, A.S., (2016). Composition and depth distribution of hydrocarbons in Barataria Bay marsh sediments after the Deepwater Horizon oil spill. Environmental Pollution 214, 101-113.

Jarrell, E.R., Kolker, A.S., Campbell, C., Blum, M.J., (2016) Brackish marsh plant community responses to regional precipitation and relative sea-level rise. Wetlands. DOI: 10.1007/s13157-016-0769-0.

Leonardi, N., Kolker, A.S., Fagherazzi, (2015). Interplay between river discharge and tides in a delta distributary. Advances in Water Resources. 80: 69-78.

Carey, J.C., Moran, S.B., Kelly, R., Kolker, A.S., Fulweiler, R.W., (2015). The declining role of organic matter in New England salt marshes. Estuaries and Coasts: 1-14.

Rosenheim, B. E., K. M. Roe, B. J. Roberts, A. S. Kolker, M. A. Allison, and K. H. Johannesson (2013), River discharge influences on particulate organic carbon age structure in the Mississippi/Atchafalaya River System, Global Biogeochemical Cycles, 27, doi:10.1002/gbc.20018.

Kolker, A.S., Allison, M.A. and Hameed, S., (2011). An evaluation of subsidence rates and sea-level variability in the NorthernGulf of Mexico. Geophysical Research Letters, 38. DOI:10.1029/2011GL049458,2011

 Kolker, A.S., Meffert, D.J., Carbonell, A. and Nelson, S.A., (2011). The lessons from a  major climate event: Hurricane Katrina and New Orleans. Published in: International Panel on Climate Change in Cities First Assessment Report, Rosenzweig, C., W.D. Solecki, S.A. Hammer, and S. Mehrotra (Eds.) Cambridge University Press, Cambridge.

 Bianchi, T.S., Cook, R.L., Perdue, E.M., Kolic, P.E., Green, N., Zhang, Y., Smith, R.W., Kolker, A.S., Ameen, A.D., King, G., M., Ojwang, L., Schneider, C., and Normand, A., (2011). Impacts of Diverted Freshwater on Dissolved Organic Matter and Microbial Communities in Barataria Bay, Louisiana, U.S.A.: Marine Environmental Research 72:248-257.

 Kolker, A.S., Meffert, D.J., Carbonell, A., and Nelson, S.A. (2011). The lessons from a major climate event: Hurricane Katrina and New Orleans. International Panel on Climate Change in Cities First Assessment Report. Cambridge University Press

 Bianchi, T.S., Wysocki, L.A., Schreiner, K.M, Filley, T.R., Corbett, D.R., Kolker, A.S. (2011). Sources of terrestrial organic carbon in the Mississippi River plume region: Evidence for the importance of coastal marsh inputs. Aquatic Geochemistry. doi:10.1007/s10498-010- 9110-3

 Kolker, A.S., Kirwan, M., Goodbred, S.L. and Cochran, J.K., (2010). Global climate changes recorded in coastal wetland sediments: Empirical Observations lined to theoretical predictions. Geophysical Research Letters, VOL. 37, L14706, doi:10.1029/2010GL043874

 Kolker, A.S., Goodbred, S.L., Hameed, S., Cochran, J.K., (2009). High resolution records ofcoastal system responses to Long-term and Short-term Sea Level Variability. Estuarine, Coastal and Shelf Science 84 (4): 493-508

 Kolker, A. S., and S. Hameed (2007). Meteorologically driven trends in sea level rise,  Geophysical Research Letters, 34, L23616, doi:10.1029/2007GL031814.

Kolker, A.S. (2005). The Impacts of Climate Variability and Anthropogenic Activities on Salt Marsh Accretion and Loss on Long Island. Marine Sciences Research Center, Stony Brook University, Stony Brook, NY 241 p.

101 Blessey Hall, New Orleans, LA 70118, 504-865-5198