tag:blogger.com,1999:blog-2220966763638300672.post6452566960961784779..comments2023-07-29T05:11:23.558-04:00Comments on Climate Observations: January 2011 SST Anomaly UpdateBob Tisdalehttp://www.blogger.com/profile/15462377647970214137noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-2220966763638300672.post-11157672906012678952011-02-23T16:35:04.478-05:002011-02-23T16:35:04.478-05:00Doug Proctor said with respect to the Arctic SST a...Doug Proctor said with respect to the Arctic SST anomalies: "So, is this enough to account for all the sea-ice melting?"<br /><br />One would also have to account for a number of other things like the changes in Arctic Ocean currents, shifts in the AO, and the atmospheric and oceanic transport of heat released during a period when El Nino events dominated.Bob Tisdalehttps://www.blogger.com/profile/15462377647970214137noreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-87073219141010639552011-02-23T13:32:32.913-05:002011-02-23T13:32:32.913-05:00The global oceanic temp anomalies would be the pro...The global oceanic temp anomalies would be the proportional sum of the various subsets herein graphed. The GISTemp record would be the oceanic + non-oceanic temp records. Subtracting one from the other will give the non-oceanic GISTemp component.<br /><br />With oceanic and non-oceanic subsets, an analysis of warming and cooling periods (such as the post 2008 cooling) reveal quite different time-responses. A calculation I did using UAH and GISTemp data suggests that after 2008 the oceans dropped 0.54K while the land portion dropped 2.8K. The thermal inertia of water being greater than that of land makes this reasonable, however the large land temp drop might be reflecting an UHIE uncorrected in the data.<br /><br />In cities it is clear that summer temps are greater than those in rural areas. In winter - I'm not so sure. The less insolation (and perhaps greater cloud cover) of urban winters relative to summer may lessen the UHIE.<br /><br />A further split of summer and winter cooling events in the GISTemp records of oceanic vs non-oceanic should show light on the UHIE. <br /><br />Within the continental USA the rural vs urban temperature records from summer to winter should also show the UHIE if the effect is greater in the summer than in the winter. I would think it would.Doug Proctorhttps://www.blogger.com/profile/16005942844872308880noreply@blogger.comtag:blogger.com,1999:blog-2220966763638300672.post-69775651597278801952011-02-23T13:21:50.838-05:002011-02-23T13:21:50.838-05:00The Arctic SST:
Since 1980, a temp rise of 0.54K ...The Arctic SST:<br /><br />Since 1980, a temp rise of 0.54K has occurred (eyeballed, generous. A "known" volume of summer ice has melted, with a known cal/gram of solid-to-liquid energy input required. This could be calculated to reflect what must he involved if atmospheric heat is involved, then used to calculate the amount of heat transference in the Arctic during the melting season. That will give the excess air temperature in the Arctic required if CO2 (plus "feedback") is the primary reason.<br /><br />The math is beyond my comfort level, though it sounds simple. So, is this enough to account for all the sea-ice melting?Doug Proctorhttps://www.blogger.com/profile/16005942844872308880noreply@blogger.com