{"title":"第21周期太阳活动的预报","authors":"Wu Ming-chan","doi":"10.1016/0146-6364(80)90065-1","DOIUrl":null,"url":null,"abstract":"<div><p>Based on the similarity in the variation of sunspot number in the ascending branch between Cycle 21 and Cycles 3, 8, 18, we predict that the solar activity in Cycle 21 will probably be high, with a maximum smoothed monthly mean relative number of 149.4 and the maximum epoch will be 1979.7.</p></div>","PeriodicalId":100241,"journal":{"name":"Chinese Astronomy","volume":"4 1","pages":"Pages 90-92"},"PeriodicalIF":0.0000,"publicationDate":"1980-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-6364(80)90065-1","citationCount":"0","resultStr":"{\"title\":\"A forecast of solar activity in cycle 21\",\"authors\":\"Wu Ming-chan\",\"doi\":\"10.1016/0146-6364(80)90065-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Based on the similarity in the variation of sunspot number in the ascending branch between Cycle 21 and Cycles 3, 8, 18, we predict that the solar activity in Cycle 21 will probably be high, with a maximum smoothed monthly mean relative number of 149.4 and the maximum epoch will be 1979.7.</p></div>\",\"PeriodicalId\":100241,\"journal\":{\"name\":\"Chinese Astronomy\",\"volume\":\"4 1\",\"pages\":\"Pages 90-92\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1980-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0146-6364(80)90065-1\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chinese Astronomy\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0146636480900651\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chinese Astronomy","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0146636480900651","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Based on the similarity in the variation of sunspot number in the ascending branch between Cycle 21 and Cycles 3, 8, 18, we predict that the solar activity in Cycle 21 will probably be high, with a maximum smoothed monthly mean relative number of 149.4 and the maximum epoch will be 1979.7.
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