【摘要】 本文在文献[1]基础上，应用沃尔什函数理论中的沃氏变化系数物理意义，讨论了我国东部（100°E以东）旱涝的时、空变化，得出了8种旱涝型和1470—1981年全国旱涝型年表。在这基础上，比较了沃氏功率谱与付氏功率谱的计算结果。研究表明：沃尔什函数在分析矩形数字波气象问题时，比傅氏函数有着更好的适用性和优越性。更多还原

【Abstract】 :On the basis of literature the author studied, by using the physical meaning of coefficientsin W AL Function theory, the temporal and spatial variations of droughts and floods in the eas-tern part of our country (east of 100°E). Eight patterns of droughts and floods and the ca-lendar of the patterns for the pariod from 1470 to 1981 are concluded. Also, the spectrumanalyses of W AL Function and that of Fourier Function are compared.The results also indicate: W AL Function is more suitable and has more superiority thanFourier Function in analyzing ractanglar figure waves meteorological problems.更多还原