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The cool skin effect plays a critical role in the estimation of heat, momentum, and gas exchange between the air and the sea. However, the scarcity of observational data greatly hinders the accurate assessment of the cool skin effect. Here, the matchup data from the new generation geostationary satellite Himawari-8 and in situ sea surface temperature (SST) observations are used to evaluate the performance and dependence on the cool skin effect in the low\/mid-latitude oceans. Results show that the intensity of the cool skin effect as revealed by Himawari-8 (\u22120.16 K) is found to be relatively weaker than previously published cool skin models based on in situ concurrent observations. A considerable amount of warm skin signals has been detected in the high-latitude oceans (e.g., Southern Ocean) under the circumstances of positive air\u2013sea temperature difference and high wind, which may be the main cause of discrepancies with previous thoughts on the cool skin effect.<\/jats:p>","DOI":"10.3390\/rs15184408","type":"journal-article","created":{"date-parts":[[2023,9,7]],"date-time":"2023-09-07T10:09:50Z","timestamp":1694081390000},"page":"4408","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Cool Skin Effect as Seen from a New Generation Geostationary Satellite Himawari-8"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-5254-8342","authenticated-orcid":false,"given":"Yueqi","family":"Zhang","sequence":"first","affiliation":[{"name":"Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China"}]},{"given":"Zhaohui","family":"Chen","sequence":"additional","affiliation":[{"name":"Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China"}]}],"member":"1968","published-online":{"date-parts":[[2023,9,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1431","DOI":"10.1175\/BAMS-D-13-00047.1","article-title":"The Concept of Essential Climate Variables in Support of Climate Research, Applications, and Policy","volume":"95","author":"Bojinski","year":"2014","journal-title":"Bull. 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