tag:blogger.com,1999:blog-4572286363399496963.post7404360813362090676..comments2024-03-28T07:09:59.093-08:00Comments on Deep Cold: Alaska Weather & Climate: Arctic Ice UpdateRickhttp://www.blogger.com/profile/03946704894714514716noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-4572286363399496963.post-85741436254786794522015-03-09T13:09:04.437-08:002015-03-09T13:09:04.437-08:00Eric, apologies for the delay in replying. The CF...Eric, apologies for the delay in replying. The CFS reanalysis is NOAA's modern high-resolution global product, which distinguishes it from the earlier NCEP reanalyses that had lower resolution, less (or no) satellite data and presumably inferior physics. There are other global reanalyses that may be as good as CFSR, e.g. the European or Japanese products, but I don't have access to those. But yes, they will all give different answers, and I don't know how reliable the 2m temperatures are in data-sparse regions. The assumption is that the overall anomaly patterns are reasonable, because the reanalysis should have consistent data assimilation methods over time.<br /><br />The extreme warmth on the European side reflects the lack of sea ice in that area in recent years - so yes, I believe it's real. Temperature anomalies will always be very large where sea ice is anomalously absent or abundant.<br />Richard Jameshttps://www.blogger.com/profile/08313902028896263276noreply@blogger.comtag:blogger.com,1999:blog-4572286363399496963.post-56806966803228141972015-03-07T18:03:15.205-09:002015-03-07T18:03:15.205-09:00I noticed that the reanalysis product is different...I noticed that the reanalysis product is different than others that you've used. I looked around to see what made the different reanalysis products different but couldn't quite grasp it. Why did you use the CFS reanalysis over the others? Would the others make a difference in interpretation?<br /><br />Also, is that consistent extreme warmth in the northern Nordic seas real? It just seems to be so anomalous compared to everywhere else.Eric Lundellhttps://www.blogger.com/profile/17914784378747801359noreply@blogger.com