tag:blogger.com,1999:blog-2161119503275991812.post2055921767544502688..comments2024-03-23T07:09:11.247+00:00Comments on Sustainability and stuff according to Nick Palmer...: This is how it was. What’s next? Feeling lucky, punks?Nick Palmerhttp://www.blogger.com/profile/05360924308743466075noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-2161119503275991812.post-34392646314274639392011-03-13T01:56:29.241+00:002011-03-13T01:56:29.241+00:00From the explanation of the Gisstemp record used h...From the explanation of the Gisstemp record used here:<br /><br /><i>The analysis is limited to the period since 1880 because of poor spatial coverage of stations and decreasing data quality prior to that time. Meteorological station data provide a useful indication of temperature change in the Northern Hemisphere extratropics for a few decades prior to 1880, and there are a small number of station records that extend back to previous centuries. However, we believe that analyses for these earlier years need to be carried out on a station by station basis with an attempt to discern the method and reliability of measurements at each station, a task beyond the scope of our analysis</i>Nick Palmerhttps://www.blogger.com/profile/05360924308743466075noreply@blogger.comtag:blogger.com,1999:blog-2161119503275991812.post-85543937945222973212011-03-13T01:39:34.637+00:002011-03-13T01:39:34.637+00:00Umm. You're not going over to the denialist da...Umm. You're not going over to the denialist dark side are you?<br /><br />There is a link in the post which helpfully said "click for more info".<br /><br />Importantly, the base period on which anomalies are measured against was 1951-1980, also anomalies are very well correlated up to 1000 km unlike individual absolute measurements of the type that pathological sceptics like Wattsupwiththat choose to play misleading mind games on people with.<br /><br />In short, you need nowhere near as many stations to monitor anomalies so the comparative lack in the 1800s is no problem - although no doubt the denialosphere will pretend that it is.<br /><br />Scientists can also do proxy measurements of temperature anomalies using oxygen isotopes and a whole bunch of other methods.Nick Palmerhttps://www.blogger.com/profile/05360924308743466075noreply@blogger.comtag:blogger.com,1999:blog-2161119503275991812.post-75229930666170029372011-03-11T19:03:35.090+00:002011-03-11T19:03:35.090+00:00How widespread were the thermometer readings globa...How widespread were the thermometer readings globally since 1880?<br /><br />I know that certainly by the 1950s, they would have been widespread, but I saw an early film on Antarctic pioneers ("The Home of the Blizzard"), and it was one of only a few station in Antarctica in the early 1920s.TonyTheProfhttps://www.blogger.com/profile/10486414706261508994noreply@blogger.com