environment predication

These include monitoring of the space environment on SZ-4, studies on its distribution, variation and effects on astronautical performance, as well as space environment forecasts for safe launching, normal operation and safe r.

文章以“神舟”四号为背景 ,概要介绍了为“神舟”四号飞船所作的空间环境安全保障服务 ,包括在“神舟”四号飞船上进行的空间环境探测、空间环境分布及变化规律的研究、空间环境对人类航天活动及“神舟”飞船的影响 (空间环境效应 ) ,以及为保障“神舟”飞船发射安全、正常运行、顺利返回所作的空间环境预报等 。

Analyzing the differences of South China Sea Summer Monsoon(SCSSM) denoted by lower tropospheric winds from the NCEP and ECMWF reanalysis data,and the results indicate that SCSSM indices by NCEP data trend to decrease and that by ECMWF data have very slight trend.

比较美国国家环境预报中心(NCEP)和欧洲中期天气预报中心(ECMWF)的再分析资料,分析了二者用低层风场表征南海夏季风上的差异。