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From the article. > "This is the lowest sea ice maximum in the 1979 to 2023 sea ice record by a wide margin," said the NSIDC, a government-supported program at
by anonporridge 3y ago
From the article.
> "This is the lowest sea ice maximum in the 1979 to 2023 sea ice record by a wide margin," said the NSIDC, a government-supported program at the University of Colorado at Boulder.
- feerceKitteh 3y agoThe paper linked is also only an estimate using a different source of data. >”Even adding in the Nimbus V single-channel Electrically Scanning Microwave Radiometer (ESMR) data extends the record by only another 6 years and that data is not as com- plete or consistent [2].” > “This paper presents Antarctic sea ice estimates for winter 1964 and 1966 derived from early Nimbus satellite data as an initial step towards creating Earth Science Data Records of sea ice in the 1960s.”
- anonymousiam 3y ago"The paper linked is also only an estimate using a different source of data." Yes, an estimate with an error margin of ±0.3 million square kilometers. Also, the 1979-2023 data is from multiple "different" sources.
- mikestew 3y agoA brief skim of the paper also suggests that the data are from different means of measurement. In the case of measurements from the 60s, those came from infrared and visible light, whereas from the 70s on its passive microwave. The paper is proposing a method to use the old data as passive microwave, and thereby extending the sea ice record. So is OP's comparison still valid? (Assuming I'm not completely off base here.)