Posts Tagged «bioshow_light»

Carns, R. C., Light, B. and Warren, S. G. (2016), The spectral albedo of sea ice and salt crusts on the tropical ocean of Snowball Earth: II. Optical modeling. J. Geophys. Res. Oceans, 121, doi:10.1002/2016JC011804

Codispoti, L. A., V. Kelly, A. Thessen, P. Matrai, S. Suttles, V. Hill, M. Steele, and B. Light (2013), Synthesis of primary production in the Arctic Ocean: III. Nitrate and phosphate based estimates of net community production, Prog. Oceanogr., 110, 126-150, doi:10.1016/j.pocean.2012.11.006.

Codispoti, L. A., V. Kelly, A.Thessen, P. Matrai, S. Suttles, V. J. Hill, M. Steele, B. Light, Synthesis of primary production in the Arctic Ocean: III. Nitrate and phosphate based estimates of net community production, Prog. Oceanogr., 2010.

The objectives of this research are to quantify the connection between seasonal warming of arctic surface waters and the absorption of solar energy, and additionally to identify the presence and seasonal cycling of materials responsible for this absorption. Seasonal changes in the attenuation of solar radiation within the sea ice and upper 30m of the water column will be measured at high temporal resolution (hourly) by a new proof of concept buoy system. Temperature and PAR (photosynthetically active radiation) irradiance measurements will be made using optical sensors paired with thermisters within the water column and sea ice. A fluorometer will…

The Arctic Data Center, supported by NSF, has highlighted Karen Junge’s work investigating rotten ice. Data has been collected on both the physical and biological properties of rotten ice and is available from the center.  

This project has two main objectives: 1) determination of the physical and microbial characteristics and microstructural evolution of sea ice exposed to severe melt; and 2) exploration of the influence of biogenic particles such as sea ice algae, bacteria and polymer gels on the melting behavior of sea ice.

Frantz, C. M., Light, B., Farley, S. M., Carpenter, S., Lieblappen, R., Courville, Z., Orellana, M. V., and Junge, K.: Physical and optical characteristics of heavily melted “rotten” Arctic sea ice, The Cryosphere, 13, 775-793,, 2019. 

Frey, K., H. Eicken, D. K. Perovich, T. C. Grenfell, B. Light, L. H. Shapiro, and A. P. Stierle (2001), Heat budget and decay of clean and sediment-laden sea ice off the northern coast of Alaska, Port and Ocean Eng. in the Arctic Conference (POAC’01) Proceedings (3), Ottawa, Canada, 1405-1412.

Frey, K.E., D.K. Perovich and B. Light (2011). The spatial distribution of solar radiation under a melting Arctic sea ice cover, Geophysical Research Letters 38: doi:10.1029/2011GL049421.

Goldenson, N, S. J. Doherty, C. M, Bitz, M. M. Holland, B. Light, and A. J. Conley (2012), Arctic climate response to forcing from light-absorbing particles in snow and sea ice in CESM, Atmos. Chem. Phys. 12, 7903-7920, doi: 10.5194/acp-12-7903-2012.

Grenfell, T.C., B. Light, and M. Sturm (2002), Spatial distribution and radiative effects of soot in the snow and sea ice during the SHEBA experiment, J. Geophys. Res., 107(C10), 8032, 10. 1029/2000JC000414.

Hill, V. J., Light, B., Steele, M., & Zimmerman, R. C. (2018). Light availability and phytoplankton growth beneath Arctic sea ice: Integrating observations and modeling. Journal of Geophysical Research: Oceans, 123.

Huck, P., B. Light, H. Eicken, and M. Haller, “Mapping sediment-laden sea ice in the Arctic using AVHRR remote-sensing data: Atmospheric correction and determination of reflectances as a function of ice type and sediment load“, Remote Sensing of Environment, 107, 484-495, 2007.

Light, B. and G. L. Trusty (1990), One-dimensional translation measurement of speckle from rough rotating objects in ultraviolet illumination, Rep. NRL-FR-9293, 68 pp., Naval Research Laboratory, Washington DC.

Welch, J. A., B. Light, G. L. Trusty, and T. H. Cosden (1991), A laser test set for the low-power atmospheric compensation experiment satellite, Rep. NRL-FR-9360, 50 pp., Naval Research Laboratory, Washington DC.

Light, B., H. Eicken, G.A. Maykut, and T. C. Grenfell (1998), The effect of included particulates on the spectral albedo of sea ice, J. Geophys. Res.,103, 27,739-27,752.

Grenfell, T. C., B. Light, and D. K. Perovich (2006), Spectral transmission and implications for the partitioning of shortwave radiation in arctic sea ice, Ann. Glac., 44, 1-6. 

Light, B., T. C. Grenfell, and D. K. Perovich, “Transmission and absorption of solar radiation by Arctic sea ice during the melt season”, J. Geophys. Res., 113, C03023, doi:10.1029/2006JC003977, 2008.

Light, B. (2010), Theoretical and observational techniques for estimating light scattering in first-year Arctic sea ice, invited contribution to Light Scattering Reviews, vol. 5, edited by A. Kokhanovsky, Springer-Praxis, Berlin.

Light, B., R. C. Carns, and S. G. Warren (2015), “Albedo dome”: a method for measuring spectral flux-reflectance in a laboratory for media with long optical paths, Appl. Opt., 54(17), 5260–5269.

Light, B., D. K. Perovich, M. A. Webster, C. Polashenski, and R. Dadic (2015), Optical properties of melting first-year Arctic sea ice, J. Geophys. Res. Oceans, 120, 7657–7675, doi:10.1002/2015JC011163.

Light, B., Carns, R. C. and Warren, S. G. (2016), The spectral albedo of sea ice and salt crusts on the tropical ocean of Snowball Earth: I. Laboratory measurements. J. Geophys. Res. Oceans. 121, doi:10.1002/2016JC011803

Matrai, P. A., E. Olson, S. Suttles, V. J. Hill, L. A. Codispoti, B. Light, and M. Steele (2013), Synthesis of primary production in the Arctic Ocean: I. Surface waters, 1954-2007, Prog. Oceanogr., doi:10.1016/j.pocean.2012.11.004.

Maykut, G.A. and B. Light (1995), Refractive-index measurements in freezing sea-ice and sodium chloride brines, Appl. Opt., 34, 950-961.

Mudge, M.C., Nunn, B.L., Firth, E., Ewert, M., Hales, K., Fondrie, W.E., Noble, W.S., Toner, J., Light, B. and Junge, K.A., 2021. Subzero, saline incubations of Colwellia psychrerythraea reveal strategies and biomarkers for sustained life in extreme icy environments. Environmental Microbiology.

On Oct 1, 2021 after 12.5 years at the helm of PSC, Axel Schweiger stepped back from his role as Chair of PSC.  PSC sea ice researcher Bonnie Light has taken on the leadership role.   

The Arctic sea ice cover is undergoing tremendous change. There has been a pronounced decrease in the summer sea ice extent (Comiso et al., 2008; Serreze et al., 2007; Stroeve et al., 2007), an overall thinning of the ice, a lengthening of the summer melt season (Markus et al., 2009) and a fundamental shift to a primarily seasonal sea ice cover (Rigor and Wallace, 2004; Nghiem, et al. 2007, 2007; Maslanik et al., 2007, 2011). Some of the greatest changes have been observed in the Chukchi and Beaufort Seas, where there has been a substantial loss of summer ice.These changes…

Perovich, D. K., B. Light, H. Eicken, K. F. Jones, K. Runciman, and S. V. Nghiem,’ Increasing solar heating of the Arctic Ocean and adjacent seas, 1979–2005: Attribution and role in the ice-albedo feedback’, Geophys. Res. Lett., 34, L19505, doi:10.1029/2007GL031480, 2007.

Perovich, D.K., T.C. Grenfell, B. Light, J.A. Richter-Menge, M. Sturm, W.B. Tucker III, H. Eicken, G.A. Maykut, and B. Elder (1999), SHEBA: Snow and Ice Studies CD-ROM.

Perovich, D.K., T.C. Grenfell, B. Light, and P.V. Hobbs (2002), Seasonal evolution of the albedo of multiyear Arctic sea ice, J. Geophys. Res., 107(C10), 8044, doi:10.1029/2000JC000438.

Perovich, D.K., J. A. Richer-Menge, K. F. Jones, B. Light, B. C. Elder, C. Polashenski, D. Laroche, T. Markus, R. Lindsay (2011), Arctic  sea- ice melt in 2008 and the role of solar heating, Ann. Glac., 57, 355-359.

Perovich, D.K., K. F. Jones, B. Light, H. Eicken, T. Markus, J Stroeve, R. Lindsay (2011), Solar partitioning in a changing Arctic sea-ice cover, Ann. Glac., 52, 192-196.

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.

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 (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.

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, in press.

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. A., I. G. Rigor, D. K. Perovich, J. A. Richter-Menge, C. M. Polashenski, and B. Light (2015), Seasonal evolution of melt ponds on Arctic sea ice, J. Geophys. Res. Oceans, 120, 5968–5982, doi:10.1002/ 2015JC011030.

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 theboundary 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,, 2018.