tag:blogger.com,1999:blog-4572286363399496963.post1254424685416892758..comments2024-03-28T07:09:59.093-08:00Comments on Deep Cold: Alaska Weather & Climate: Satellite Temperature EstimatesRickhttp://www.blogger.com/profile/03946704894714514716noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-4572286363399496963.post-84797686910204051052017-02-09T17:20:44.414-09:002017-02-09T17:20:44.414-09:00Won't take long to make ice cubes in Howard Pa...Won't take long to make ice cubes in Howard Pass/Brooks Range the next few days.<br /><br />GaryNL7Yhttps://www.blogger.com/profile/15874712728971005352noreply@blogger.comtag:blogger.com,1999:blog-4572286363399496963.post-60450183330873332842017-02-09T17:01:41.105-09:002017-02-09T17:01:41.105-09:00Yes, it will be interesting to see what the satell...Yes, it will be interesting to see what the satellite reveals in the upcoming cold. I'm working on a Google Maps interface to view the near-realtime satellite temperature estimates...<br />Richard Jameshttps://www.blogger.com/profile/08313902028896263276noreply@blogger.comtag:blogger.com,1999:blog-4572286363399496963.post-27684094245906483342017-02-09T10:12:25.216-09:002017-02-09T10:12:25.216-09:00With the forecast cold snap this weekend it might ...With the forecast cold snap this weekend it might be a good time to further calibrate the satellite's temp estimates. <br /><br />Might be the last chance for a few months as insolation is affecting daily temperatures. Saw the first frost melt on my dark roof edge and gutters earlier this week. <br /><br />GaryNL7Yhttps://www.blogger.com/profile/15874712728971005352noreply@blogger.comtag:blogger.com,1999:blog-4572286363399496963.post-55118398087034789722017-02-07T20:59:33.308-09:002017-02-07T20:59:33.308-09:00We have weather data for about ten years. It's...We have weather data for about ten years. It's an old Hobo station from one of my wife's projects that was trashed by a moose or bear. She repaired it and set it up for testing, but they never needed it again. Now that she's retired, she keeps it going and sends the data to her old boss. Not sure if he does anything with it. It's downloaded into excel, probably a pretty big spreadsheet by now. You're welcome to it if it'd do you some good. Might be interesting to compare to the Little Chena or airport weather data.BJhttps://www.blogger.com/profile/11616582048497878998noreply@blogger.comtag:blogger.com,1999:blog-4572286363399496963.post-27221316969711855572017-02-07T16:45:12.087-09:002017-02-07T16:45:12.087-09:00Jon, thanks for looking into this. A bit more dig...Jon, thanks for looking into this. A bit more digging reveals it is a Celsius-Fahrenheit conversion problem... -53.8°C=-64.8°F. USGS shows the temperatures in °F but every other source shows the data after erroneously performing the conversion. See for example the bogus values on<br /><br />http://mesowest.utah.edu/cgi-bin/droman/meso_base_dyn.cgi?stn=ucha2&unit=0&timetype=LOCAL<br /><br />This is not happening for all HADS sites so I'm not sure what the issue is here. Hopefully it can be fixed soon.<br /><br />Do you have long-term weather records from your place?<br />Richard Jameshttps://www.blogger.com/profile/08313902028896263276noreply@blogger.comtag:blogger.com,1999:blog-4572286363399496963.post-10234276326697734532017-02-07T13:25:18.285-09:002017-02-07T13:25:18.285-09:00Tried to post a comment yesterday but it apparentl...Tried to post a comment yesterday but it apparently disappeared. Anyway, was surprised to see the -65 reading at UCHA2 (Chena R nr Two Rivers gage), so downloaded the data for Jan 17-19 from the USGS site (https://waterdata.usgs.gov/ak/nwis/uv?site_no=15493000). the lowest reading for those days is -53.8, so the -65 on the HADS site maybe from posting uncorrected data? The coldest we had at our place near 10 mile CHSR was -41.5, which was the coldest in about ten years. So much for global warming! Enjoy your blog. JonBJhttps://www.blogger.com/profile/11616582048497878998noreply@blogger.com