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AVO STAFF DIRECTORY
AVO is a very extended family. Some people work full time for the observatory, others well under half time. Others perform essential work, but only draw operating expenses. Several agencies contribute personnel at several locations. A wide variety of disciplines are represented, including geophysics, geology, glaciology, hydrology, geochemistry, remote sensing, computing, electronics, and administration. The following people are the paid staff, and share among themselves about 22 Full Time Equivalent positions.

[List staff by discipline] [List staff alphabetically] [List staff by office location]
* When listing staff by discipline, some individuals may be listed more than once.

Taryn Lopez
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Department: University of Alaska Fairbanks Geophysical Institute
Institute: UAF/GI
Website: https://sites.google.com/alask
a.edu/tarynlopez/
Address: Fairbanks, AK 99775
Discipline(s):Geochemistry
Remote Sensing
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Taryn is a Research Associate Professor at the UAF Geophysical Institute. Her research expertise is in volcanic gas geochemistry and (UV and IR) remote sensing. Her main research interests lie in using measurements of volcanic gas composition and flux to characterize subvolcanic conditions and better understand volcanic activity.


Cameron, C.E., Orr, T.R., Dixon, J.P., Dietterich, H.R., Waythomas, C.F., Iezzi, A.M., Power, J.A., Searcy, C., Grapenthin, R., Tepp, G., Wallace, K.L., Lopez, T.M., Degrandpre, K., and Perreault, J.M., 2023, 2018 Volcanic activity in Alaska - Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Scientific Investigations Report 2023-5029, 68 p., https://doi.org/10.3133/sir20235029.
http://dx.doi.org/10.3133/sir20235029
Download PDF Full-text PDF : 35.5 MB


Lopez, T., Fischer, T.P., Plank, T., Malinverno, A., Rizzo, A.L., Rasmussen, D.J., Cottrell, E., Werner, C., Kern, C., Bergfeld, D., Ilanko, T., Andrys, J.L., and Kelley, K.A., 2023, Tracking carbon from subduction to outgassing along the Aleutian-Alaska Volcanic Arc: Science Advances v. 9, no. 26, article no. eadf3024, 12 p. https://doi.org/10.1126/sciadv.adf3024.
http://dx.doi.org/10.1126/sciadv.adf3024


Waythomas, C.F., Dietterich, H.R., Tepp, G.M., Lopez, T.M., and Loewen, M.W., 2022, The 2018 eruption of Mount Veniaminof, Alaska: U.S. Geological Survey Scientific Investigations Report 2022-5075, 32 p. https://doi.org/10.3133/sir20225075.
http://dx.doi.org/10.3133/sir20225075
Download PDF Full Text PDF : 11.9mb


Reath, K., Pritchard, M.E., Roman, D.C., Lopez, T., Carn, S., Fischer, T.P., Lu, Z., Poland, M.P., Vaughan, R.G., Wessels, R., Wike, L.L., and Tran, H.K., 2021, Quantifying eruptive and background seismicity, deformation, degassing, and thermal emissions at volcanoes in the United States during 1978-2020: Journal of Geophysical Research: Solid Earth, v. 126, e2021JB021684, doi: 10.1029/2021JB021684.
http://dx.doi.org/10.1029/2021JB021684


Wasser, V.K., Lopez, T.M., Anderson, K.R., Izbekov, Pavel, and Freymueller, J.T., 2021, Multidisciplinary constraints on magma compressibility, the pre-eruptive exsolved volatile fraction, and the H2O/CO2 molar ratio for the 2006 Augustine eruption, Alaska: Geochemistry, Geophysics, Geosystems, v. 22, 24 p., 10.1029/2021GC009911.
http://dx.doi.org/10.1029/2021GC009911


Fischer, T.P., Lopez, T.M., Aiuppa, Alessandro, Rizzo, A.L., Ilanko, Tehnuka, Kelley, K.A., and Cottrell, Elizabeth, 2021, Gas emissions from the Western Aleutians volcanic arc: Frontiers in Earth Science, v. 9., 10.3389/feart.2021.786021.
http://dx.doi.org/10.3389/feart.2021.786021
Download article on Frontiers website


Fee, David, Lyons, John, Haney, Matthew, Wech, Aaron, Waythomas, Christopher, Diefenbach, A.K., Lopez, Taryn, Van Eaton, Alexa, and Schneider, David, 2020, Seismo-acoustic evidence for vent drying during shallow submarine eruptions at Bogoslof volcano, Alaska: Bulletin of Volcanology, v. 82, n. 2, 14 p.,doi:10.1007/s00445-019-1326-5.
http://dx.doi.org/10.1007/s00445-019-1326-5
Download Open Access on Bull Volc webpage


Bergfeld, Deborah, Evans, W.C., Hunt, A.G., Lopez, Taryn, and Schaefer, J.R., 2020, A post-eruption study of gases and thermal waters at Okmok volcano, Alaska: Journal of Volcanology and Geothermal Research, v, 396, doi:10.1016/j.jvolgeores.2020.106853.
http://dx.doi.org/10.1016/j.jvolgeores.2020.106853
Download article on JVGR website


Lopez, Taryn, Lieven, Clarisse, Schwaiger, Hans, Van Eaton, Alexa, Loewen, Matthew, Fee, David, Lyons, John, Wallace, Kristi, Searcy, Cheryl, Wech, Aaron, Haney, Matthew, Schnieder, David, and Graham, Nathan, 2020, Constraints on eruption processes and event masses for the 2016-2017 eruption of Bogoslof volcano, Alaska, through evalution of IASI satellite SO2 masses and complementary datasets: Bulletin of Volcanology, v. 82, doi: https://doi.org/10.1007/s00445-019-1348-z.
http://dx.doi.org/10.1007/s00445-019-1348-z


Poland, M.P., Lopez, Taryn, Wright, Robert, and Pavolonis, M.J., 2020, Forecasting, detecting, and tracking volcanic eruptions from space: Remote Sensing in Earth Systems Science, 40 p., https://doi.org/10.1007/s41976-020-00034-x
http://dx.doi.org/10.1007/s41976-020-00034-x


Kelly, P.J., Kern, Christoph, Werner, C.A., and Lopez, Taryn, 2020, Volcanic gas measurements at Mount Cleveland, Alaska 2016: U.S. Geological Survey data release, https://doi.org/10.5066/P9DRMV0U..
http://dx.doi.org/10.5066/P9DRMV0U
Download USGS publication page


Werner, Cindy, Rasmussen, D. J., Plank, Terry, Kelly, P. J., Kern, Christoph, Lopez, Taryn, Gliss, Jonas, Power, J.A., Roman, D.C., Izbekov, Pavel, and Lyons, John, 2020, Linking subsurface to surface using gas emission and melt inclusion data at Mount Cleveland volcano, Alaska: Geochemistry, Geophysics, Geosystems, v. 125, article no. e2019GC008882, 33 p. https://doi.org/10.1029/2019GC008882.
http://dx.doi.org/10.1029/2019GC008882


Lopez, T., Fazzi, F., Aiuppa, A., Galle, B., Rizzo, A.L., Fiebig, J., Capecchiacci, F., Giudice, G., Caliro, S., Tamburello, G., 2017, Geochemical constraints on volatile sources and subsurface conditions at Mount Martin, Mount Mageik, and Trident Volcanoes, Katmai Volcanic Cluster, Alaska: Journal of Volcanology and Geothermal Research,v. 347, p. 64-81, https://doi.org/10.1016/j.jvolgeores.2017.09.001.
http://dx.doi.org/doi.org/10.1016/j.jvolgeores.2017.09.001


citation imageFischer, T.P., and Lopez, T.M., 2016, First airborne samples of a volcanic plume for delta13C of CO2 determinations: Geophysical Research Letters, v. 31, 8 p., doi: 10.1002/2016GL068499
http://dx.doi.org/10.1002/2016GL068499


citation imageLopez, T., Thomas, H.E., Prata, A.J., Amigo, A., Fee, D., and Moriano, D., 2015, Volcanic plume characteristics determined using an infrared imaging camera: Journal of Volcanology and Geothermal Research, v. 300, p. 148-166, doi: 10.1016/j.jvolgeores.2014.12.009
http://dx.doi.org/10.1016/j.jvolgeores.2014.12.009


Evans, W.C., Bergfeld, D., Neal, C.A., McGimsey, R.G., Werner, C.A., Waythomas, C.F., Lewicki, J.L., Lopez, T., Mangan, M.T., Miller, T.P., Diefenbach, A., Schaefer, J., Coombs, M.L., Wang, B., Nicolaysen, K., Izbekov, P., Maharrey, Z., Huebner, M., Hunt, A.G., Fitzpatrick, J., and Freeburg, G., 2015, Aleutian Arc geothermal fluids: chemical analyses of waters and gases: U.S. Geological Survey Data release, http://dx.doi.org/10.5066/F74X55VB
http://dx.doi.org/10.5066/F74X55VB
Download data tables (.xlsx) : 101 KB
Download PDF text and figures to accompany data release, originally hosted on USGS water resources website : 1.9 MB


citation imageWerner, Cynthia, Kelly, P.J., Doukas, Michael, Lopez, Taryn, Pfeffer, Melissa, McGimsey, Robert, and Neal, Christina, 2013, Degassing of CO2, SO2, and H2S associated with the 2009 eruption of Redoubt Volcano, Alaska: Journal of Volcanology and Geothermal Research, v. 259, p. 270-284, doi:10.1016/j.jvolgeores.2012.04.012
http://dx.doi.org/10.1016/j.jvolgeores.2012.04.012


citation imageFee, David, McNutt, S.R., Lopez, T.M., Arnoult, K.M., Szuberla, C.A.L., and Olson, J.V., 2013, Combining local and remote infrasound recordings from the 2009 Redoubt Volcano eruption: Journal of Volcanology and Geothermal Research, v. 259, p. 100-114, doi:10.1016/j.jvolgeores.2011.09.012
http://dx.doi.org/10.1016/j.jvolgeores.2011.09.012


citation imageLopez, Taryn, Carn, Simon, Werner, Cynthia, Fee, David, Kelly, Peter, Doukas, Michael, Pfeffer, Melissa, Webley, Peter, Cahill, Catherine, and Schneider, David, 2013, Evaluation of Redoubt Volcano's sulfur dioxide emissions by the Ozone Monitoring Instrument: Journal of Volcanology and Geothermal Research, v. 259, p. 290-307, doi:10.1016/j.jvolgeores.2012.03.002
http://dx.doi.org/10.1016/j.jvolgeores.2012.03.002


citation imageKelly, P.J., Kern, Christoph, Roberts, T.J., Lopez, Taryn, Werner, Cynthia, and Aiuppa, Alessandro, 2013, Rapid chemical evolution of tropospheric volcanic emissions from Redoubt Volcano, Alaska, based on observations of ozone and halogen-containing gases: Journal of Volcanology and Geothermal Research, v. 259, p. 317-333, doi:10.1016/j.jvolgeores.2012.04.023
http://dx.doi.org/10.1016/j.jvolgeores.2012.04.023


citation imageWebley, P.W., Lopez, T.M., Ekstrand, A.L., Kean, K.G., Rinkleff, P., Dehn, J., Cahill, C.F., Wessels, R.L., Bailey, J.E., Izbekov, P., and Worden, A., 2013, Remote observations of eruptive clouds and surface thermal activity during the 2009 eruption of Redoubt Volcano: Journal of Volcanology and Geothermal Research, v. 259, p. 185-200, doi:10.1016/j.jvolgeores.2012.06.023
http://dx.doi.org/10.1016/j.jvolgeores.2012.06.023


citation imageLopez, T.M., 2013, Characterization and interpretation of volcanic activity at Redoubt, Bezymianny and Karymsky Volcanoes through direct and remote measurements of volcanic emissions: University of Alaska Fairbanks Ph.D. dissertation, 225 p.
Download PDF full-text pdf : 8.5 mb


Schaefer, J.R., ed., 2012, The 2009 eruption of Redoubt Volcano, Alaska, with contributions by Bull, Katharine, Cameron, Cheryl, Coombs, Michelle, Diefenbach, Angie, Lopez, Taryn, McNutt, Steve, Neal, Christina, Payne, Allison, Power, John, Schneider, Dave, Scott, William, Snedigar, Seth, Thompson, Glenn, Wallace, Kristi, Waythomas, Chris, Webley, Peter, and Werner, Cynthia: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2011-5, 45 p., available at http://www.dggs.alaska.gov/pubs/id/23123.
Download link to PDF on ADGGS website

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