PPT-1 Agenda Topic: Sea Ice Modeling

Presented By Bob Grumbine NWSNCEP Contributors Hendrik Tolman 2 Operational System Attributes System Name Acronym Areal Coverage Horz Res Cycle Freq Fcst Length . Decline in the extent and thickness of Arctic sea ice is an active area of scientific effort and one with significant implications for ecosystems and communities.. Forecasting for seasonal timescales (i.e., the summer and into fall) is of particular interest to many stakeholders.. Bates et al., (2006). Stephens and Keeling (2002). Sigman. et al., (2010). Takahashi et al., (2009). Arrigo. et al., (2010). McNeil et al., (2007). Ventilation and subduction in the sea ice zone. (Arctic). Jie Tang. *. , Limin Yao. #. , and Dewei Chen. *. *. Dept. of Computer Science and Technology. Tsinghua University. #. Dept. of Computer Science, University of Massachusetts Amherst. April, 2009. ?. What are the major topics in the returned docs?. Sea Ice Formation. --in Antarctica, begins forming in late summer with winds from the. . continent, evaporative cooling at ocean surface reduces . . water temperature to ~-1.8 °C. --as water temperature falls, ice crystals of fresh water begin . Kirstin Harnos, Michelle L’Heureux, Qin Zhang, and Qinghua Ding. Images courtesy of National Snow Ice Data Center. Current State of Sea Ice. Images courtesy of National Snow Ice Data Center. Current Events: . Some basics . -- of ice, . -- Relation to sea level, . -- Ice reservoirs. Greenland. Antarctica. Continental glaciers globally. Arctic Ocean. . An Important Point . Archimedes Principle. The vanishing veneer of frozen ocean isn't just important for polar bears.. By: Russell . McLendon. 11/6/2015. 2. The Arctic hasn't been itself lately. Temperatures there are rising at twice the global rate, sparking an array of changes unlike anything in recorded history. One of the most striking examples is the region's sea ice, whose dramatic decline over the past decade has led to forecasts of an ice-free Arctic Ocean as early as the 2030s. . Americans Turn to Ice Cream Once Again After years of declining sales, ice cream made a comeback during the 52 weeks ending August 6, 2017, increasing 3.9% to $6.1 billion. The North American ice cream market is expected to have a CAGR of 4.1% from 2018 through 2023. Ice Hockey What is Ice Hockey Ice Hockey is a game played In the Olympics and for a weekend sport. Ice hockey is a very competitive because it is an Olympic sport so more people play ice hockey more often. Climate and Earth System Modeling climatemodeling.science.energy.gov THE CICE CONSORTIUM MODEL FOR SEA-ICE DEVELOPMENT In 2016, a group of primary developers and users of a preeminent sea ice model Julia R. Hagemann. 1,3. , Frank Lamy. 1. , Helge W. Arz. 2. ,. . Lester Lembke-Jene. 1. , Alexandra Auderset. 3,4. , Naomi Harada. 5. , Sze Ling Ho. 6. , Shinya Iwasaki. 7. , Jérôme Kaiser. 2. , Carina B. Lange. Navigating. Navigating ocean currents and ice drift. In the past many people did not know that there was ice in the Arctic Ocean or that the ice moved. . We first learned this from finding objects that had drifted across the Arctic.. ice combined. . S. . Rynders (1), . Y. . Aksenov (1), . R. . Marsh (2), . N. . Skrilis. (2), . L. . Hosekova. (3), . D. Feltham . (3), . L. . Bertino. (4), . M. . Srokosz. (1), and . T. . Williams (4). Dethloff. , Markus Rex, and many others. Goals. Process-level, coupled-system understanding to enable weather, climate, and sea-ice forecasting models. Sub-grid parameterizations. Process understanding and evaluation.