April 30, 2020 – PSC researcher Ben Smith’s paper ‘Pervasive ice sheet mass loss reflects competing ocean and atmosphere processes’ discussed in the New York Times.
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New data from space is providing the most precise picture yet of Antarctica’s ice, where it is accumulating most quickly and disappearing at the fastest rate, and how the changes could contribute to rising sea levels.
Banzon, V., T.M. Smith, M. Steele, B. Huang, and H. Zhang, Improved Estimation of Proxy Sea Surface Temperature in the Arctic. J. Atmos. Oceanic Technol., 37, 341–349, doi:10.1175/JTECH-D-19-0177.1, 2020.
Boisvert, L., Webster, M., Petty, A., Markus, T., Cullather, R., & D. Bromwich (2020), Intercomparison of precipitation estimates over the Southern Ocean from atmospheric reanalyses, J. Clim., doi:10.1175/JCLI-D-20-0044.1.
May 8, 2020 – Maddie Smith is ready to drift through life for a little while. But it’s not because she’s lost focus. In fact, the postdoctoral researcher at the University of Washington’s Applied Physics Laboratory is embarking on the trip of a lifetime for any scientist interested in better understanding global warming.
DeGrandpre, M., W. Evans, M.-L. Timmermans, R. Krishfield, B. Williams, and M. Steele, Changes in the Arctic Ocean carbon cycle with diminishing ice cover, Geophys. Res. Lett., 47, doi:10.1029/2020GL088051, 2020.
Donohoe, A., E. Blanchard-Wrigglesworth., A. Schweiger, P. Rasch (2020). The effect of atmospheric transmissivity on model and observational estimates of the sea ice albedo feedback. Journal of Climate. DOI: 10.1175/JCLI-D-19-0674.1.
Donohoe, A., E.J. Dawson, L. McMurdie, D.S. Battisti and A. Rhines (2020). Seasonal asymmetries in the lag between insolation and surface temperature. Journal of Climate. DOI: 10.1175/JCLI-D-19-0329.1
Donohoe, A., K.C. Armour, G.H. Roe and D.S. Battisti (2020). The partitioning of atmospheric energy transport and changes under climate forcing in coupled climate models. Journal of Climate. DOI: 10.1175/JCLI-D-19-0797.1
DuVivier, A., DeRepentigny, P., Holland, M., Webster, M., Kay, J., & D. Perovich (2020), Going with the floe: tracking CESM Large Ensemble sea ice in the Arctic provides context for ship-based observations, The Cryosphere, doi:10.5194/tc-14-1259-2020.
April 30, 2020 – Using the most advanced Earth-observing laser instrument NASA has ever flown in space, a team of scientists led by the University of Washington has made precise measurements of how the Greenland and Antarctic ice sheets have changed over 16 years.
“If you watch a glacier or ice sheet for a month, or a year, you’re not going to learn much about what the climate is doing to it,” said lead author Benjamin Smith, a glaciologist at the UW Applied Physics Laboratory. “We now have a 16-year span between ICESat and ICESat-2 and can be much more confident that the changes we’re seeing in the ice have to do with the long-term changes in the climate.
The Transpolar Drift as a Source of Riverine and Shelf-Derived Trace Elements to the Central Arctic OceanCharette, M. A., Kipp, L.E., Jensen, L.T., et al. (2020), The Transpolar Drift as a Source of Riverine and Shelf-Derived Trace Elements to the Central Arctic Ocean, Journal of Geophysical Research: Oceans, 125, e2019JC015920.10.1029/2019jc015920. https://doi.org/10.1029/2019JC015920.
King, M. D., Howat, I. M., Candela, S. G., Jeong, S., Noh, M. J., Noël, B., van den Broeke, M. R., Wouters, B., and Negrete, A.: Dynamic ice loss from the Greenland Ice Sheet driven by sustained glacier retreat. Nature Communications Earth & Environment, 1,1 (2020). https://doi.org/10.1038/s43247-020-0001-2
King, M. D., Howat, I. M., Jeong, S., Noh, M. J., Wouters, B., Noël, B., and van den Broeke, M. R.: Seasonal to decadal variability in ice discharge from the Greenland Ice Sheet,The Cryosphere, 12, 3813-3825, (2018). https://doi.org/10.5194/tc-12-3813-2018
King, M. D., Veron, D. E., and Huntley, H. S.: Early predictors of seasonal Arctic sea ice volume loss: The impact of spring and early-summer cloud radiative conditions. Annals of Glaciology. 1–9. (2020). https://doi.org/10.1017/aog.2020.60
Kwok, R., S. Kacimi, M. Webster, N. T. Kurtz, A. A. Petty (2020), Arctic snow depth and sea ice thickness from ICESat-2 and CryoSat-2 freeboards: A first examination, 125(3), doi:10.1029/2019jc016008.
Kwok, R., Cunningham, G., Kacimi, S., Webster, M., Kurtz, N., & A. Petty (2020), Decay of the snow cover over Arctic sea ice from ICESat-2 acquisitions during summer melt in 2019, Geophys. Res. Lett. doi:10.1029/2020GL088209.
Kwok, R., Kacimi, S., Webster, M., Markus, T., Kurtz, N., & A. Petty (2020), Snow depth and sea ice thickness from ICESat-2 and CryoSat-2 freeboards: A first examination, J. Geophys. Res. Oceans. doi:10.1029/2019JC016008.
Kwok, R., Cunningham, G., Kacimi, S., Webster, M., Kurtz, N., & A. Petty (2020), Decay of the snow cover over Arctic sea ice from ICESat-2 acquisitions during summer melt in 2019, Geophys. Res. Lett. doi:10.1029/2020GL088209.
Kwok, R., G. F. Cunningham, S. Kacimi, M. A. Webster, N. T. Kurtz, and A. A. Petty, (2020) Decay of the snow cover over Arctic sea from ICESat-2 acquisitions during summer melt in 2019, Geophys. Res. Lett., https://doi.org/10.1029/2020GL088209
Laidre, K. L., S. Atkinson, E. V. Regehr, H. L. Stern, E. W. Born, Ø. Wiig, N. J. Lunn, and M. Dyck. 2020. Interrelatedecological impacts of climate change on an apex predator. Ecological Applications 30:18.
Laidre, K. L., S. N. Atkinson, E. V. Regehr, H. L. Stern, E. W. Born, Ø. Wiig, N. J. Lunn, M. Dyck, P. Heagerty, and B. R.Cohen. 2020. Transient benefits of climate change for a high‐Arctic polar bear (Ursus maritimus) subpopulation. GlobalChange Biology 26:6251‐6265. https://doi.org/10.1111/gcb.15286
Mayot, N., P. A. Matrai, A. Arjona, S. Bélanger, C. Marchese, T. Jaegler, M. Ardyna, and M. Steele, Springtime export of Arctic sea ice influences phytoplankton production in the Greenland Sea, J. Geophys. Res., 125, doi:10.1029/2019JC015799, 2020.
February 14, 2020 – The impact of the climate crisis is becoming more and more obvious to humans and their animal neighbors. But among all species, polar bears might be some of the hardest hit.
February 12, 2020 – Polar bears are spending more time on land than they did in the 1990s due to reduced sea ice, new University of Washington-led research shows. Bears in Baffin Bay are getting thinner and adult females are having fewer cubs than when sea ice was more available.
February 4, 2020 – A polar bear’s life seems simple enough: eat seals, mate, and raise cubs. But a recent study shows some subpopulations of polar bears are struggling to complete these essential tasks because of declining concentrations of Arctic sea ice.
Rode, K. D., T. C. Atwood, G. W. Thiemann, M. St Martin, R. R. Wilson, G. M. Durner, E. V. Regehr, S. L. Talbot, G. K. Sage,A. M. Pagano, and K. S. Simac. 2020. Identifying reliable indicators of fitness in polar bears. PLoS ONE 15:27. https://doi.org/10.1371/journal.pone.0237444
September 23, 2020 – New research shows that Kane Basin polar bears are doing better, on average, in recent years than they were in the 1990s. The study, published Sept. 23 in Global Change Biology, finds the bears are healthier as conditions are warming because thinning and shrinking multiyear sea ice is allowing more sunlight to reach the ocean surface, which makes the system more ecologically productive.
Researchers used data from a pan-Arctic survey of carbon and trace elements to better understand how climate change will affect primary production in one of the fastest warming regions of the world.
November 02, 2020 – @Michalea_King: This week, I officially (but remotely) begin my postdoctoral fellowship at APL @PolarScience_UW at the University of Washington. Looking forward to working with a lot of fantastic people and making the big cross-country move to Seattle in January!
Zhang, J., Y.H. Spitz, M. Steele, C. Ashjian, R. Campbell, & A. Schweiger, Biophysical consequences of a relaxing Beaufort gyre. Geophysical Research Letters, 47, e2019GL085990, doi:10.1029/2019gl085990, 2020.
Zhang, J., Y.H. Spitz, M. Steele, C. Ashjian, R. Campbell, & A. Schweiger, Biophysical consequences of a relaxing Beaufort gyre. Geophysical Research Letters, 47, e2019GL085990, doi:10.1029/2019gl085990, 2020.
Zhang, J., Y.H. Spitz, M. Steele, C. Ashjian, R. Campbell, & A. Schweiger, Biophysical consequences of a relaxing Beaufort gyre. Geophysical Research Letters, 47, e2019GL085990, doi:10.1029/2019gl085990, 2020.