Polashenski, C., D. K. Perovich, K. E. Frey, L. W. Cooper, C. I. Logvinova, R. Dadic, B. Light, H. P. Kelly, L. D. Trusel, and M. Webster (2015), Physical and morphological properties of sea ice in the Chukchi and Beaufort Seas during the 2010 and 2011 NASA ICESCAPE missions, Deep. Res. Part II Top. Stud. Oceanogr., 118, 7–17, doi:10.1016/j.dsr2.2015.04.006.
Posts Tagged «Bonnie Light»
The focus of this project is to synthesize existing studies and data relating to Arctic Ocean primary production and its changing physical controls such as light, nutrients, and stratification, and to use this synthesis to better understand how primary production varies in time and space and as a function of climate change.
The response of Arctic sea ice to a warming climate includes decreases in extent, lower ice concentration, and reduced ice thickness. Summer melt seasons are lengthening with earlier melt onsets and later autumn freezeups. We believe this will likely lead to an increase in so-called “rotten ice” in the Arctic at the end of summer. This ice has experienced a long summer of melt, is fragile, difficult to work with, and has received little attention. Comprehensive information on its physical and microbiological properties does not exist. Our team is embarking on an ambitious field campaign in order to study this poorly-understood type of sea ice in the context of its microstructural properties and potential for habitability.
We propose to use data analysis and modeling to constrain the salt chemistry of the soil measured by Phoenix in the context of soil chemistry measured by the Viking Landers (VLs), Mars Pathfinder (MPF) and the two Mars Exploration Rovers (MERs).
The focus of this project is to work collaboratively with Dr. Donald Perovich (CRREL) in support of a NASA sponsored program, ICESCAPES. Bonnie Light will support this project by helping to characterize the morphological and optical properties of the sea ice cover through field measurements, radiative transfer modeling, and synthesis.
Some of the greatest observed changes to the rapidly decreasing Arctic ice cover are occurring in the Chukchi and Beaufort Seas, where increased summer ice retreat has created a substantially increased seasonal ice zone. Increased absorption of solar radiation in newly formed areas of open water and the ice albedo feedback have contributed to this decline in the ice cover (Perovich et al., 2007, 2008, 2011). Furthermore, changes in ice type, thickness, ice age, and the timing of melt onset and freezeup may be accelerating this ice albedo feedback. Recent studies have demonstrated substantial increases in solar heat input to…
Toner, J. D., D. C. Catling, and B. Light (2014), The formation of supercooled brines, viscous liquids, and low-temperature perchlorate glasses in aqueous solutions relevant to Mars, Icarus, 233, 36–47, doi:10.1016/j.icarus.2014.01.018.
Toner, J. D., D. C. Catling, and B. Light (2015), Modeling salt precipitation from brines on Mars : Evaporation versus freezing origin for soil salts, Icarus, 250, 451–461, doi:10.1016/j.icarus.2014.12.013.
Toner, J.D., Catling, D.C., Light, B., Soluble salts at the Phoenix Lander site, Mars: A reanalysis of the Wet Chemistry Laboratory data, Geochimica et Cosmochimica Acta, doi:10.1016/j.gca.2014.03.030, 2014.
Toner, J.D., D.C. Catling, and B. Light (2015), A revised Pitzer model for low-temperature soluble salt assemblages at the Phoenix site, Mars, Geochim. Cosmochim. Acta, 166, 327–343, doi:10.1016/j.gca.2015.06.011.
September 20, 2019 – PSC’s Bonnie Light and Madison Smith will participate in the MOSAiC expedition in 2020. Read the UW News story to learn about the expedition and how it will contribute to Arctic research.
Webster, M., Rigor, I.G., Perovich, D.K., Richter-Menge, J.A., Polashenski, C.M., & B. Light (2015), Seasonal evolution of melt ponds on Arctic sea ice, J. Geophys. Res. Oceans, 120, 5968–5982, doi:10.1029/2015JC011030.
Webster, M., Holland, M., Wright, N.C., Hendricks, S., Hutter, N., Itkin, P., Light, B., Linhardt, F., Perovich, D.K., Raphael, I.A., Smith, M.M., Albedyll, L.v., & J. Zhang (2022), Spatiotemporal evolution of melt ponds on Arctic sea ice: MOSAiC observations and model results, Elementa: Sci. of the Anthro. 10, doi:10.1525/elementa.2021.000072.
Zatko, M., Erbland, J., Savarino, J., Geng, L., Easley, L., Schauer, A., Bates, T., Quinn, P. K., Light, B., Morison, D., Osthoff, H.D., Lyman, S., Neff, W., Yuan, B., and Alexander, B. (2016), The magnitude of the snow-sourced reactive nitrogen flux to the boundary layer in the Uintah Basin, Utah, USA, Atmos. Chem. Phys. Discuss., doi:10.5194/acp-2016-320.
Zhang, J., A. Schweiger, M. Webster, B. Light, M. Steele, C. Ashjian, R. Campbell, and Y. Spitz, Melt pond conditions on declining Arctic sea ice over 1979-2016: Model development, validation, and results, J. Geophys. Res. Oceans, 123, doi:10.1029/2018JC014298, 2018.