KEVIN DANIEL KROEGER Research Chemist US Geological Survey Coastal and Marine Geology Program Woods Hole Science Center 384 Woods Hole Road Woods Hole, MA 02543 Telephone: 508-457-2270 Fax: 508-457-2310 E-mail: kkroeger@usgs.gov Professional Preparation Ph.D Boston University Marine Program (Biogeochemistry) M.S University of Connecticut (Marine Science) B.A University of Tennessee (Ecology) 2003 1997 1989 Appointments Present Research Chemist, USGS Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA 2004-2006 Mendenhall Fellow, US Geological Survey Geologic Division, St Petersburg, FL 2003-2004 Postdoctoral Scholar, Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 1997-2003 Research Fellow and Teaching Fellow, Boston University Marine Program, Woods Hole, MA Professional Recognition, Memberships, and Other Activities Contributing Author: 2nd State of the Carbon Cycle Report (SOCCR-2), Chapter 15 Tidal Wetlands and Estuaries Lead, USGS Woods Hole Coastal Biogeochemical Processes Project Participant, 2017 EPA AFOLU Inventory Coastal Wetlands Co-Founder and Steering Committee Member, Science of Blue Carbon Network and Global Database Member, U.S Blue Carbon Working Group Member, Research Advisory Committee for Waquoit Bay National Estuarine Research Reserve USGS Mendenhall Postdoctoral Fellowship, 2004-2006 Woods Hole Oceanographic Institution Postdoctoral Fellowship, 2002-2004 NOAA National Estuarine Research Reserve Fellowship recipient, 2000-2003 Palmer/McLeod Fellowship recipient, 1999-2001 Sounds Conservancy Fellowship recipient, 1999 Boston University Teaching Fellowship, 1997-1999 Ablon/Bay Fellowship, 1997 Member, IAPSO-IAHS Joint Commission on Groundwater-Seawater Interactions Member, American Society of Limnology and Oceanography, Coastal and Estuarine Research Federation, American Geophysical Union, Geological Society of America Mentoring and Supervisory Roles M Eagle-Gonneea, NSF Postdoctoral Fellow and Mendenhall Fellow B Szymczycha, Visiting Fulbright Scholar from Polish Academy of Sciences K Befus, Mendenhall Postdoctoral Fellow P Ganguli, WHOI Postdoctoral Fellow (co-advisor) J Carey, Marine Biological Laboratory/USGS Powell Center Postdoctoral Investigator (co-advisor) F Wang, Marine Biological Laboratory/USGS WHCMSC Postdoctoral Investigator (co-advisor) S Moseman-Valtierra, Mendenhall Postdoctoral Fellow S Chu, PhD Committee, WHOI/MIT Joint Program T.W Brooks, MS Committee, University of Delaware D Torre, MS Committee, University of Delaware S DeVries, PhD Committee, City College of New York C Young, PhD Committee, Stony Brook Univ C Shuman, MS Committee, University of Delaware D Rogers, PhD Committee, WHOI/MIT Joint Program E Malkin, PhD Committee, Univ of South FL C Young, MS Committee, Stony Brook Univ S Goode, MS Committee, Boston University Current supervisor or co-supervisor for four USGS staff Frequent mentor for undergraduate interns through NSF REU, USGS, NAGT, PEP, WHOI and other programs Publications (*Indicates advised postdoctoral scientists and students) Pending: *Gonneea, M.E and K.D Kroeger In Review Pervasive underestimation of sediment accretion rates with the continuous rate of supply lead-210 sediment age model Geochim Cosmochim Acta Najjar, R G., M Herrmann, R Alexander, E W Boyer, D Burdige, D Butman, W.-J Cai, E A Canuel, R F Chen, M A M Friedrichs, R A Feagin, P Griffith, A L Hinson, J R Holmquist, X Hu, W M Kemp, K D Kroeger, A Mannino, S L McCallister, W R McGillis, M R Mulholland, C Pilskaln, J Salisbury, S Signorini, P St-Laurent, H Tian, M Tzortziou, P Vlahos, Z A Wang, and R C Zimmerman In Review Carbon budget of tidal wetlands, estuaries, and shelf waters of Eastern North America Global Biogeochemical Cycles Surgeon Rogers, T-M, Kroeger, KD, Abdul-Aziz, OI, Tang, J, Moseman-Valtierra, S, Gonneea, ME In press Blue Carbon as a Tool to Support Coastal Management and Restoration: Bringing Wetlands to Market Case Study Chapter 29 In: Windham-Myers, Troxler & Crooks (eds), “A Blue Carbon Primer: The State of Coastal Wetland Carbon Science, Practice, and Policy”, CRC Press *Chu, SN, Wang, ZA, Gonneea, ME, Kroeger, KD, Ganju, NK In Review Direct, high-frequency measurements of inorganic carbon export from intertidal salt marshes Marine Chemistry *Wang, F, Kroeger, KD, Gonneea, M, Pohlman, J, Tang, J In Review Effects of water salinity and soil inundation level of soil C decomposition during salt marsh restoration: An incubation experiment *Carey, JC, Kroeger, KD, Zafari, B, and Tang, J In Review Passive experimental warming decouples air and sediment temperatures in a salt marsh Holmquist, JR, et al In review Simple empirical relationships estimate tidal wetland soil carbon stocks more accurately and precisely than high resolution soil maps Scientific Reports Abdul-Aziz, O.I., Ishtiaq, K.S., Tang, J., Moseman-Valtierra, S., Kroeger, K.D., Gonneea, M.E., Mora, J., Morkeski, K In review Environmental controls and emergent scaling of greenhouse gas fluxes in coastal salt marshes: Data analytics, modeling, and predictions Wetlands 2017 Kroeger, KD, Crooks, S, Moseman-Valtierra, S, Tang, J 2017 Restoring tides to reduce methane emissions as a new and potent Blue Carbon intervention Scientific Reports 7, Article number: 11914, doi:10.1038/s41598-017-12138-4 *Befus, KM, Kroeger, KD, Smith, CG, and Swarzenski, PW 2017 The magnitude and origin of groundwater discharge to eastern U.S and Gulf of Mexico coastal waters Geophysical Research Letters 44, https://doi.org/10.1002/2017GL075238 *Szymczycha B, Kroeger KD, Crusius J, Bratton JF 2017 Depth of vadose zone controls aquifer biogeochemical conditions and extend of anthropogenic nitrogen removal Water Research 123:794-801, http://dx.doi.org/10.1016/j.watres.2017.06.048 *Befus, K.M., and Kroeger, K.D., 2017 Continuous and optimized 3-arcsecond elevation model for United States east and west coasts: U.S Geological Survey data release, https://dx.doi.org/10.5066/F7W37TGK *Brooks, T.W., Kroeger, K.D., Bratton, J.F., Crusius, J., Szymczycha, B., Mann, A.G., Brosnahan, S.B., Casso, M., and Erban, L 2017 Coastal Groundwater Chemical Data from the North and South Shores of Long Island, New York: U.S Geological Survey data release, https://www.sciencebase.gov/catalog/item/5953a36de4b062508e3c7b5a 2016 *Carey, JC, Tang, J, Templer, P, Kroeger, KD, et al 2016 Proceedings of the National Academy of Sciences Temperature response of soil respiration largely unaltered with experimental warming PNAS 2016: 1605365113v1-201605365 *Carey, J.C., Tang, Jianwu, Templer, P.H., Kroeger, K.D et al 2016 Data compilation of soil respiration, moisture, and temperature measurements from global warming experiments from 1994-2014: U.S Geological Survey data release, http://dx.doi.org/10.5066/F7MK6B1X *Szymczycha B, Kroeger KD, Pempkowiak, J 2016 Significance of groundwater discharge along the coast of Poland as a source of dissolved metals to the Baltic Sea Marine Pollution Bulletin 109:151-62, doi: 10.1016/j.marpolbul.2016.06.008 Wang, ZA, Kroeger, KD, Ganju, NK, Chu, SN, Gonneea, ME 2016 Salt marshes as an important source of inorganic carbon to the coastal ocean Limnology and Oceanography 61:1916-1931, doi: 10.1002/lno.10347 Moseman-Valtierra, S, Tang, J, Martin, R, Egan, K, Mora, J, Morkeski, K, Carey, JC, Kroeger, KD 2016 Carbon dioxide fluxes reflect plant zonation and below ground biomass in a coastal marsh Ecosphere 7(11):e01560 10.1002/ecs2.1560 Russoniello, CJ, Konikow, LF, Kroeger, KD, Fernandez, C, Andres, AS, Michael, HA 2016 Hydrogeologic controls on groundwater discharge and nitrogen loads in a coastal watershed Journal of Hydrology, 538:783-793, doi: http://dx.doi.org/10.1016/j.jhydrol.2016.05.013 Swarzenski, PW, Dulai, H, Kroeger, KD, Smith, CG, Dimova, N, Storlazzi, CD, Prouty, NG, Gingerich, SB, Glenn, CR 2016 Observations of nearshore groundwater discharge: Kahekili Beach Park submarine springs, Maui, Hawaii Journal of Hydrology: Regional Studies, doi:10.1016/j.ejrh.2015.12.056 2015 Ganju, NK, Kirwan ML, Dickhudt, PJ, Guntenspergen, GR, Cahoon, DR, Kroeger, KD 2015 Sediment-based metrics of wetland stability Geophysical Research Letters 42:7992-8000, doi: 10.1002/2015GL065980 Herrmann, M., Najjar, R.G., Kemp, W.M., Alexander, R.B., Boyer, E.W., Cai, W.-J., Griffith, P.C., Kroeger, K.D., McAllister, S.L., Smith, R.A 2015 Net ecosystem production and organic carbon balance of U.S East Coast estuaries: A synthesis approach Global Biogeochemical Cycles 29:96-111, doi:10.1002/2013GB004736 *Moseman-Valtierra, S., Kroeger, K.D., Crusius, J., Baldwin, S., Green, A., Brooks, T.W., Pugh, E 2015 Substantial nitrous oxide emissions from intertidal sediments and groundwater in anthropogenically-impacted West Falmouth Harbor, MA Chemosphere 119:1281-88, http://dx.doi.org/10.1016/j.chemosphere.2014.10.027 Johnson C.D., Swarzenski, P.W., Richardson, C.M., Smith, C.G., Kroeger, K.D., Ganguli, P.M 2015 Ground-truthing electrical resistivity methods in support of submarine groundwater discharge studies: Examples from Hawaii, Washington, and California Journal of Environmental & Engineering Geophysics 20:81-87 2014 Arnold,W.A., Longnecker, K., Kroeger, K.D., Kujawinski, E.B 2014 Molecular signature of organic nitrogen in septic-impacted groundwater Environmental Science: Processes & Impacts 16:2400–2407 Sawyer, A.H., Lazareva, O., Kroeger, K.D., Crespo, K., Chan, C.S., Stieglitz, T., and Michael, H.A 2014 Stratigraphic controls on fluid and solute fluxes across the sediment-water interface of an estuary Limnology and Oceanography 59:997–1010 2013 *Young, C., Kroeger, K.D and Hanson, G 2013 Limited denitrification in glacial deposit aquifers having thick unsaturated zones (Long Island, USA) Hydrogeology Journal 21:1773-86, DOI 10.1007/s10040-013-1038-4 Cross, V.A., J.F Bratton, H.A Michael, K.D Kroeger, Adrian Green, and Emile Bergeron 2013 Continuous Resistivity Profiling and Seismic-Reflection Data Collected in April 2010 From Indian River Bay, Delaware Report Series 2011–1039 Cross, V.A., Bratton, J.F., Kroeger, K.D., Crusius, J., and Worley, C.R., 2013, Continuous resistivity profiling data from Great South Bay, Long Island, New York: U.S Geological Survey Open-File Report 2011-1040, available at https://pubs.usgs.gov/of/2011/1040/ Prior Cross, V.A., Bratton, J.F., Crusius, J., Kroeger, K.D., and Worley, C.R 2012, Continuous resistivity profiling data from Northport Harbor and Manhasset Bay, Long Island, New York: U.S Geological Survey Open-File Report 2011-1041 (http://pubs.usgs.gov/of/2011/1041/) *Moseman-Valtierra, S., Gonzalez, R., Kroeger, K.D., Tang, J., Chao W-C., Crusius, J., Bratton, J., Green, A., and Shelton, J 2011 Short-term nitrogen additions can shift a coastal wetland from a sink to a source of N2O Atmospheric Environment 45: 4390-4397 Zhao, S., Zhang, P., Crusius, J., Kroeger, K.D., and Bratton, J.F 2011 Pharmaceuticals and Pesticides as Tracers of Nutrient Sources in Groundwater of Western Long Island, New York Journal of Environmental Monitoring 13: 1337-1343 Kroeger, K.D and Charette, M.A 2008 Nitrogen biogeochemistry of submarine groundwater discharge Limnology and Oceanography 53:1025-1039 Garrison, V., Kroeger, K.D., Fenner, D., and Craig, P 2007 Identifying nutrient sources to three lagoons at Ofu and Olosega, American Samoa using δ 15N of benthic macroalgae Marine Pollution Bulletin 54:1813-1838 Kroeger, K.D., Swarzenski, P.W., Greenwood, J., and Reich, C 2007 Submarine groundwater discharge to Tampa Bay: Nutrient fluxes and biogeochemistry of the coastal aquifer Marine Chemistry 104:85-97 Bowen, J L., K D Kroeger, G Tomasky, W J Pabich, M L Cole, R H Carmichael, and I Valiela 2007 A review of land-estuary coupling by ground water discharge: Mechanisms and effects Applied Geochemistry 22:175-191 Swarzenski, P.W., Reich, C., Kroeger, K.D., and Baskaran, M 2007 Ra and Rn as natural tracers of submarine groundwater discharge in Tampa Bay, Florida Marine Chemistry 104:69-84 Kroeger, K.D., Swarzenski, P.W., Crusius, J., Bratton, J.F and Charette, M.A 2007 Submarine groundwater discharge: Nutrient loading and nitrogen transformations USGS-FS2006-3110 Kroeger, K.D., Cole, M.L., and Valiela, I 2006 Groundwater-transported dissolved organic nitrogen exports from coastal watersheds Limnology and Oceanography 51: 2248-2261 Kroeger, K.D., Cole, M.L., York, J.K and Valiela, I 2006 Nitrogen loads to estuaries from wastewater plumes: Modeling and isotopic approaches Ground Water 44:188-200 Cole, M L., K D Kroeger, J W McClelland, and I Valiela 2006 Effects of watershed land use on nitrogen concentrations and δ15N in groundwater Biogeochemistry 77:199-215 Crusius, J., Koopmans, D., Bratton, J., Charette, M.A., Kroeger, K.D., Ryckman, L., Halloran, K., and Colman, J 2005 Submarine groundwater discharge to a small estuary estimated from radon and salinity measurements and a box model Biogeosciences 2:141-157 Cole, M L., K D Kroeger, J W McClelland, and I Valiela 2005 Macrophytes as indicators of land-derived wastewater: Application of a N stable isotopic method in aquatic systems Water Resources Research 41, W01014, doi:10.1029/2004WRR003269 Cole, M.L., Valiela, I., Kroeger, K.D Fry, B., Tomasky, G.L., Cebrian, J., Wigand, C., McKinney, R.A., Grady, S.P and Silva, M.E.C 2004 Assessment of a d 15N isotopic method to indicate anthropogenic eutrophication in aquatic ecosystems Journal of Environmental Quality 33:124132 Valiela, I., Mazzilli, S., Bowen, J.B., Kroeger, K.D., Cole, M.L., Tomasky, G and Isaji, T 2004 ELM an estuarine nitrogen loading model: Formulation, verification of predicted concentrations of dissolved inorganic nitrogen Water Air and Soil Pollution 157: 365-391 *Talbot, J.M., Kroeger, K.D., Rago, A., Allen, M.C and Charette, M.A 2003 Nitrogen flux and speciation through the subterranean estuary of Waquoit Bay, Massachusetts Biol Bull 205:244245 Abraham, D.M., Charette, M.A., Allen, M.C., Rago, A and Kroeger, K.D 2003 Radiochemical estimates of submarine groundwater discharge to Waquoit Bay, Massachusetts Biol Bull 205:245-248 Valiela, I., Bowen, J.L., and Kroeger, K.D 2002 Assessment of models for estimation of landderived nitrogen loads to shallow estuaries Applied Geochemistry 17:935-953 Valiela, I., Bowen, J.L., Cole, M.L., Kroeger, K.D., Lawrence, D., Pabich, W.J., Tomasky, G and Mazzilli, S 2001 Following up on a Margalevian concept: Interactions and exchanges among adjacent parcels of coastal landscapes Scientia Marina 65(Suppl 2):217-231 *Hauxwell, A., Neill, C., Valiela, I., and Kroeger, K.D 2001 Small-scale heterogeneity of nitrogen concentrations in groundwater at the seepage face of Edgartown Great Pond Biol Bull 201:290-292 Cebrian, J., Pedersen, M.F., Kroeger, K.D and Valiela, I 2000 Fate of production of the seagrass Cymodocea nodosa in different stages of meadow formation Mar Ecol Prog Ser 204:119-130 Valiela, I., Tomasky, G., Hauxwell, J., Cole, M.L., Cebrian, J., and Kroeger, K.D 2000 Operationalizing sustainability: Management and risk assessment of land-derived nitrogen loads to estuaries Ecol Appl 10:1006-1023 *Westgate, E.J., Kroeger, K.D., Pabich, W.J and Valiela, I 2000 Fate of anthropogenic nitrogen in a nearshore Cape Cod aquifer Biol Bull 199:221-223 Kroeger, K.D., Bowen, J.L., Corcoran, D., Moorman, J., Michalowski, J., Rose, C and Valiela, I 1999 Nitrogen loading to Green Pond, MA: Sources and evaluation of management options Environment Cape Cod 2:15-26 *Wolfe, F.L., Kroeger, K.D and Valiela, I 1999 Increased lability of estuarine dissolved organic nitrogen from urbanized watersheds Biol Bull 197:290-292 Griffin, M.P.A., Cole, M.L., Kroeger, K.D and Cebrian, J 1998 Dependence of herbivory on autotrophic nitrogen content, on net nitrogen content and on net primary production across ecosystems Biol Bull 195:233 Kroeger, K.D., Stumpf, D.K., LaGrandeur, L.M.H and Hoffmann, J.J 1996 Determination of latex content in Guayule Ind Crops and Prod 5(3): 213-216 Representative Abstracts and Invited Presentations Kroeger, K.D 2013 So a Wetland Walks into a Market… Invited public presentation, Research at the Reserve Seminar Series, Waquoit Bay National Estuarine Research Reserve, March 14, 2013 Invited presentation Kroeger, K.D., Neil Ganju, John W Pohlman, Serena Moseman-Valtierra, Jianwu Tang and Christopher Weidman 2012 Blue Carbon in Wetlands: Consideration of Lateral and Vertical Greenhouse Gas Fluxes Intecol 9th INTECOL International Wetlands Conference, WETLANDS IN A COMPLEX WORLD June 3-8, 2012, Orlando, Florida Invited presentation Kroeger, KD Dinitrogen, denitrification and anammox in submarine groundwater discharge zones Ecosystems Center Seminar Series, May 15, 2012, Invited presentation Kroeger, KD 2012 Coastal and submarine groundwater discharge: Nitrogen biogeochemistry and role in eutrophication City College of New York Seminar Series 15 March 2012 Invited presentation Kroeger, K.D 2010 Discussion leader for Terrestrial Processes, at the workshop titled “Interactive Session: Submarine Groundwater Discharge — from Watershed to Coast: Climate, Land-Use, Geohydrology and Marine Biogeochemical Impacts (I08)” American Society of Limnology and Oceanography Annual Meeting, Santa Fe, New Mexico, 7-11 June 2010 Invited discussion leader Kroeger, K.D., J.F Bratton, J Crusius, S Baldwin, A Green, T.W Brooks 2010 Organic and Inorganic Nitrogen in Coastal Groundwater: A Potential Link to Great South Bay Brown Tides? 7th Biennial Fire Island National Seashore Science Conference, Sponsored by National Park Service, April 21 and 22, 2010, Watch Hill Ferry Terminal, Patchogue, NY Abstract published in proceedings Invited Speaker Kroeger, K.D., Crusius, J., Bratton, J.F., Charette, M.A., Swarzenski, P.W., Cole, M.L., Valiela, I 2009 Nitrogen biogeochemistry of submarine groundwater discharge: A synthesis Geological Society of America Annual Meeting, Portland, Oregon, October 18-21 Invited Speaker Kroeger, K.D., et al 2006 Nitrogen in the near-shore aquifer: watershed influences on chemical form and transformations prior to discharge Gordon Research Conference on Permeable Sediments, June 25 – 30, 2006 Colby College, Waterville, ME Invited speaker Kroeger, K.D., et al 2006 Submarine groundwater discharge: Nitrogen fluxes and biogeochemistry April 4, 2006 Ecosystems Center, Woods Hole, MA Invited speaker Feagin, RA, Kulawardhana, RW, Hinson, AL, Popescu, SC, Bianchi, TS, Yeager, KM, Najjar, RG, Kroeger, KD, Windham-Myers L 2015 Spatial quantification of blue carbon at landscape and continental scales NASA Carbon Cycle & Ecosystems Joint Science Workshop 2015 College Park, MD Feagin, RA, Kulawardhana, RW, Hinson, AL, Popescu, SC, Bianchi, TS, Yeager, KM, Najjar, RG, Kroeger, KD, Windham-Myers L 2015 Spatial quantification of blue carbon at landscape and continental scales North American Carbon Program Conference 2015 Washington, DC Ganguli, P.M., Gonneea, M.E., Lamborg, C.H., Kroeger, K.D., O'Keefe Suttles, J., Swarr, G., Vadman, K.J., Baldwin, S., Brooks, B.W., and Green, A., 2014 (poster) Mercury cycling in salt marsh pond ecosystems: Cape Cod, MA AGU Fall Meeting, San Francisco, CA, USA Swarzenski, P.W., Kroeger, K.K., Smith, C.G., Frackell, J., C.G., Storlazzi, C.D., Prouty, N.G., Dulaiova, H., Glenn, C.R., Ganguli, P.M (platform) Tracers, processes, and associated impacts of submarine groundwater discharge in Hawaii: Examples from Maui, Hawaii, and Oahu Feb 2014 Ocean Sciences Meeting (ASLO, TOS, AGU), Honolulu, HI, USA Ganguli, P.M., Swarzenski, P.W., Kroeger, K.D., Smith, C.G., Johnson, C., *Merckling, J., and Flegal, A.R (poster) Mercury speciation and transport associated with groundwater discharge in a tidally dominated coastal system: Hood Canal, Washington July 2013 International Conference on Mercury as a Global Pollutant (ICMGP), Edinburgh, Scotland Johnson C., Swarzenski, P.W., Smith, C., Kroeger, K., Ganguli, P., *Merckling, J (poster) Groundtruthing electrical resistivity methods in support of submarine groundwater discharge studies: Examples from Hawaii, Washington, and California March 2013 Symposium on the Application of Geophysics to Engineering and Environmental Problems (SAGEEP), Denver, CO, USA Serena Moseman-Valtierra, Jianwu Tang, Kate Morkeski, Katharine Egan, Timothy Lima, Kevin Kroeger Are salt marshes sinks or sources of greenhouse gases? How shifts in greenhouse gas fluxes from coastal ecosystems may affect the promise of Blue Carbon Coastal and Estuarine Research Federation, Nov to 7, 2013, San Diego, CA, USA Brannon, E., Kroeger, K.D., Ganju, N., Pohlman, J and Green, A 2013 Investigating time variations in DOC concentrations for salt marsh carbon budgets: Testing continuous CDOM measurements as a proxy for DOC ASLO 2013 Aquatic Sciences Meeting, 17-22 February 2013, New Orleans, Louisiana, USA Moseman-Valtierra, S., Tang, J., Morkeski, K., Govenar, B., Egan, K., Lima, T., Martin, R., Garate, M 2013 Contrasting Zonation Patterns in Greenhouse Gas Fluxes From New England Salt Marshes ASLO 2013 Aquatic Sciences Meeting, 17-22 February 2013, New Orleans, Louisiana, USA Kevin D Kroeger 2012 Moderator Session #56: Measurement of Greenhouse Gas Emissions from Wetlands Intecol 9th INTECOL International Wetlands Conference, WETLANDS IN A COMPLEX WORLD June 3-8, 2012, Orlando, Florida Moseman-Valtierra, S.M., Kroeger, K.D., Gonzalez, R., Tang, J., Crusius, J., Bratton J., Brooks, T and A Green 2010 Is nitrogen loading shifting coastal wetlands from sinks to sources of greenhouse gases? Ecological Society of America Annual Meeting, August 6, 2010, Pittsburgh, PA Abstract published in proceedings Green, A.C., Kroeger, K.D., Crusius, J., Bratton, J.F., Baldwin, S 2009 Quantifying greenhouse gas concentrations in coastal groundwater discharging to Great South Bay and Long Island Sound, NY Geological Society of America Annual Meeting, Portland, Oregon, October 18-21 Abstract published in proceedings Kroeger, K.D., Crusius, J., Giblin, A., Tucker, J., Bratton, J.F., Baldwin, S., Green, A 2009 Dinitrogen and noble gas tracers of denitrification in submarine groundwater discharge zones HydroEco Conference, Vienna, Austria, April 2009 Abstract published in proceedings Crusius, J., Kroeger, K.D., Bratton, J.F., Green, A and Baldwin, S 2008 Significant groundwater discharge of nutrients to Western Long Island Sound inferred from radioisotopic and organic geochemical tracers AGU Fall meeting, December 15 to19, 2008, San Francisco Abstract published in proceedings Kroeger, K.D., Charette, M.A., Casciotti, K., Eagle-Gonneea, M., Henderson, P., Rogers, D and Baldwin, S 2008 Nitrogen transformations in submarine groundwater discharge zones: Insights from isotope pairing experiments American Society for Limnology and Oceanography conference, March 2-7, Orlando, FL Abstract published in proceedings Crusius, J., Moseman, S., Kroeger, K.D., Pugh, E and Bratton, J.F 2009 Links of groundwater to coastal nitrous oxide fluxes American Society for Limnology and Oceanography conference, January 25-30, Nice, France Abstract published in proceedings ... S Goode, MS Committee, Boston University Current supervisor or co-supervisor for four USGS staff Frequent mentor for undergraduate interns through NSF REU, USGS, NAGT, PEP, WHOI and other programs... Kroeger, K.D., et al 2006 Nitrogen in the near-shore aquifer: watershed influences on chemical form and transformations prior to discharge Gordon Research Conference on Permeable Sediments, June 25... 2013 Investigating time variations in DOC concentrations for salt marsh carbon budgets: Testing continuous CDOM measurements as a proxy for DOC ASLO 2013 Aquatic Sciences Meeting, 17-22 February