1.Manuscripts should be submitted with regular margins and the pages must be numbered consecutively . Brevity and lucidity are encouraged and papers each consisting of less than 25 pages include figures, tables, and references are preferred. Each manuscript generally includes the following components: (1) title, author's name, a±liation; (2) abstract; (3) key words; (4) text; (5) acknowledgment; (6) appendix; (7) references; and (8) tables and figures.

2.References should be arranged alphabetically without numbering at the end of the paper and the text citation should consist of the name of the author and the year of publication. The references for articles and books should be in the following form respectively:

1）.Parasnis, S. S., and S. S. Goyal, 1989: Thermodynamic feature of the atmospheric boundary during the summer monsoon. Atmos. Environment, 24, 743- 753.

2）.Zhang Jiabao, 1984: Intr oduction to Xinjiang Precipitation. China Meteorological Press, 14-16. (in Chinese)

3）.Zeng Qingcun, 1994: Experiments of seasonal and extraseasonal predictions of summer monsoon precipitation. Proceedings of International Conference on Monsoon Variability and Predictability , Trieste, 9- 13 May 1994, 25-27.

3.Figures should be mentioned specifically and numbered consecutively in the text. All the figures are preferably made about twice final size and lettering should be large enough so that after reduction the smallest character will be at least 1.5 mm high. Give a detailed caption to each figure and note the approximate location of each figure and its caption in the text.

4.Tables should be typed directly at the appropriate locations in the text and arranged successively with Arabic numerals.

5.Footnotes, other than those which refer to the title heading, should be numbered successively and placed at the foot of the page to which they refer (not at the end of the paper). The authors requested to reduce the use of footnotes to a minimum.

6.The International System of Units should be used throughout. Words and symbols should not be mixed; in general, symbols should be used only when preceded by a number. Unit symbols are not punctuated, i.e., they are not treated as abbreviation; the same symbol is used for both singular and plural. Abbreviation should be avoided, especially of organizations, and acronyms should be identified with the first use. The other items not mentioned here should be dealt with according to the worldwide conventional rules.