To: Sdgla who wrote (1138285 ) 6/1/2019 10:26:20 AM From: Wharf Rat Read Replies (2) | Respond to There's a reason it's called "nothing but tricks zone"In early 2013, David Bromwich, a professor of polar meteorology at Ohio State University, and a team including Antarctic weather station experts from the University of Wisconsin, published a paper in Nature Geoscience showing that the warming in central West Antarctica was unambiguous—and likely about twice the magnitude estimated by Steig et al. The key to Bromwich et al.'s work was the correction for errors in the temperature sensors used in various incarnations of the Byrd Station record (the only long record in this part of Antarctica); miscalibration had previously caused the magnitude of the 1990s warmth to be underestimated, and the magnitude of the 2000s to be overestimated. The revised Byrd Station record is in very good agreement with the borehole temperature data from nearby WAIS Divide. [24] A new statistical reconstruction [25] shows significant warming over all of West Antarctic in the annual mean, driven by significant warming over most of the region in winter and spring. Summer and fall trends, are insignificant except over the Antarctic Peninsula where they are widespread only in fall. These finding are in good agreement with the 2009 study in Nature, though in general the new results show greater warming in West Antarctica and less warming over East Antarctica as a whole. Nicholas and Bromwich [25] argue that while the warming in East Antarctica is not statistically significant, it would be greater in magnitude if not for the ozone hole. There is no evidence that any significant region of Antarctic has been cooling over the long term, except in fall. In a 2016 paper, Turner and others [26] point out that if one considers just the last ~18 years, the trend on the Antarctic Peninsula has been cooling. This is likely connected with tropical variability, [27] perhaps associated with the phase of the Interdecadal Pacific Oscillation. [28] en.wikipedia.org
