摘要
根据华北山区降水随海拔高度变化的不同参数,将地形按不同坡地方位进行分区.在分区的基础上,研究降水随地方海拔高度和宏观地形高度变化规律,并求其宏观区域最大降水高度的分布.
Impacts of orientation of slopes and elevation in some mountatious areas are compli-cated.In North China, mountainous region may be divided into 14 sub-regions according to the variations of different parameters of rainfall with elevation.The variation of rainfall with the local elevation shows an increasing tendency of loga-rthmic function while the variation of rainfall with macro-regional height shows a decreas-ing tendency of exponential function.On the basis of sub-regions, the variations of the distrubusions of rainfall in moun-tainous regions may be expressed as a linear function of geographical coordinates:Pi = a0i + a1iψ + a2iλ + a3ihwhere Pi is the rainfall calculated. a0i is a constant, a1i, ,a2i, a3i are the partial correlation co-efficients, ψ is the latitude, λ is the longitude and h is the height.The maximum rainfall height often occurs in the range of a warm and wet air current forced to rise. The wetter this current is, the lower the maximum rainfall hight is, vice
出处
《地理科学》
CSSCI
CSCD
北大核心
1996年第2期150-158,共9页
Scientia Geographica Sinica
关键词
坡地方位
海拔高度
降水
地形影响
Orientation of slope
Elevation
Maximum rainfall height
