| 短期气候降水预报及陆—气耦合的非绝热慢波 |
| |
| 引用本文： | 李超.短期气候降水预报及陆—气耦合的非绝热慢波[J].成都信息工程学院学报,1989(4). |
| |
| 作者姓名： | 李超 |
| |
| 作者单位： | 成都气象学院科研所 |
| |
| 摘 要： | 首先,用1980—1985年的深层地温距平资料做付氏展开,并假定满足热传导方程,得到地温及平均地温的表达式。其次,根据前期地温与后期降水成正相关的事实,提出了两种有实用价值的降水短期气候预报方法。结果表明,对1981—1986年汛期(4—9月)旱涝趋势预报效果很好。最后,提出了陆—气耦合系统中存在两类非绝热慢波,一类是准半年波,另一类是准三年波,这刚好可以解释前面的两类相关场,进而为两类预报方法提供了物理基础。
|
| 关 键 词： | 气象学 地温异常 汛期降水 预报方法 陆气耦合 非绝热慢波 |
PRECIPITATION FORECASTING OF SHORT AND DIABATIC SLOW WAVE OF LAND-ATMOSPHERE COUPLING |
| |
| Li Chao.PRECIPITATION FORECASTING OF SHORT AND DIABATIC SLOW WAVE OF LAND-ATMOSPHERE COUPLING[J].Journal of Chengdu University of Information Technology,1989(4). |
| |
| Authors: | Li Chao |
| |
| Abstract: | In the first,the ground temperature departure from 1980 to 1985 is analyzed by Fourier Spectrum method in this paper, on the assumption that the heat conduction equation may be applied, the land surface formula of ground temperature departure and the depth-average ground temperature departures are formulated.
Secondly, after analyzing the relationships between the temperature departures and some cases of precipitation distribution, two short-period climatic forecasting methods are obtained, and very good result has been achieved in applying to the qualitative forecasting in flood seasons(apr.-sept. )from 1981 to 1986.
Finally, two long-period diabatic waves in the land-atmosphere coupling system are found, one is the quasi-half year wave; and the other is the quasi-three years wave. |
| |
| Keywords: | Meteorology Ground temperature departure Precipitation of flood season Forecasting method Diabatic slow wave Land-atmosphere coupling |
| 本文献已被 CNKI 等数据库收录！ |
|
