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.
结果表明：南海夏季风爆发平均时间是5月第4候，爆发的时间和强度有显著的年际变化，爆发期间的海气状况与大气的低频振荡密切相关。
South China Sea (SCS) summer monsoon onset in the 4th pentad of May 2004, it's close to normal year.
2003年南海夏季风首先于5月第5候在南海南部建立，在南部维持1-2候后向北推进，6月第1候全面爆发。
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.
受印度夏季风爆发影响第二次北跳在第31候发生。
Research on the pentad temperature variation in the past 33 years in Chengdu
成都市近33年候气温变化的研究
PERSISTENT ANOMALIES OF 500hPa PENTAD MEAN HEIGHT IN SUMMER AND PERSISTENT DROUGHTS IN THE NORTH OF CHINA
夏季500hPa候平均高度场的多年持续性异常与我国北方持续干旱