pentad

基本解释

The main results are as follows.The mean onset time of SCSSM is the fourth pentad of May for the period 1980 to 1991.
結果表明：南海夏季風爆發平均時間是5月第4候，爆發的時間和強度有顯著的年際變化，爆發期間的海氣狀況與大氣的低頻振蕩密切相關。
South China Sea (SCS) summer monsoon onset in the 4th pentad of May 2004, it's close to normal year.
2003年南海夏季風首先於5月第5候在南海南部建立，在南部維持1-2候後曏北推進，6月第1候全麪爆發。
Influenced by the onset of the Indian summer monsoon, the second jump is found on Pentad 31.3. The onset of the vigorous convection over Indochina Peninsula and its adjacent areas is of very importance to the onset of the Indian summer monsoon.
受印度夏季風爆發影響第二次北跳在第31候發生。
Research on the pentad temperature variation in the past 33 years in Chengdu
成都市近33年候氣溫變化的研究
PERSISTENT ANOMALIES OF 500hPa PENTAD MEAN HEIGHT IN SUMMER AND PERSISTENT DROUGHTS IN THE NORTH OF CHINA
夏季500hPa候平均高度場的多年持續性異常與我國北方持續乾旱