CAJ | 학술논문

海拔、坡度、坡向以及周围地形遮蔽作用,造成山区各部位接受到的太阳辐射能有很大差异. 在前人研究的基础上,对以前的模型进行了一些改进,考虑了坡度、坡向和地形相互遮蔽作用对复杂地形下天文辐射的影响,基于数字高程模型(DEM)数据,研制了以复杂地形下天文辐射为起始数据的复杂地形下太阳总辐射的分布式模型,在模型中还考虑了散射辐射的各向异性及坡地反射辐射对复杂地形下太阳总辐射的影响.应用100 m×100 m分辨率的DEM数据及气象站常规观测气象资料,计算了贵州高原复杂地形下100 m×100 m分辨率的复杂地形下太阳总辐射.结果表明:(1) 局地地形因子如坡度、坡向、地形遮蔽等对太阳总辐射影响显著,地形对复杂地形下太阳总辐射的影响是不容忽视的.(2)在缺乏复杂地形下坡面考察资料的情况下,建立以常规气象站观测资料为主的物理经验统计模型是实现细网格辐射资源计算的可行途径.
해발、파도、파향이급주위지형차폐작용,조성산구각부위접수도적태양복사능유흔대차이. 재전인연구적기출상,대이전적모형진행료일사개진,고필료파도、파향화지형상호차폐작용대복잡지형하천문복사적영향,기우수자고정모형(DEM)수거,연제료이복잡지형하천문복사위기시수거적복잡지형하태양총복사적분포식모형,재모형중환고필료산사복사적각향이성급파지반사복사대복잡지형하태양총복사적영향.응용100 m×100 m분변솔적DEM수거급기상참상규관측기상자료,계산료귀주고원복잡지형하100 m×100 m분변솔적복잡지형하태양총복사.결과표명:(1) 국지지형인자여파도、파향、지형차폐등대태양총복사영향현저,지형대복잡지형하태양총복사적영향시불용홀시적.(2)재결핍복잡지형하파면고찰자료적정황하,건립이상규기상참관측자료위주적물리경험통계모형시실현세망격복사자원계산적가행도경.
Due to the effect of local terrain factors such as height above sea level, slope, aspect and terrain inter-shielding, the solar radiation energy accepted over every part of mountainous regions has very great difference. The previous models have been improved in this paper on the basis of past studies. The influence of slope, aspect, and terrain inter-shielding on astronomical solar radiation over complex terrains (CT) is considered, a distributed model, which is based on astronomical solar radiation over CT for calculating global solar radiation (GSR) quantities over CT is developed. The diffuse radiation's anisotropism and the effect of reflection of sloping field on global solar radiation are calculated in this model.Using this model, the elaborate distribution of GSR with resolution of 100 m×100 m by a DEM and meteorological observations data in the Guizhou Plateau are generated. The results are as follows: (1)The influence of the slope, aspect and terrain inter-shielding on GSR's spatial distribution over CT is great in Guizhou Plateau, and the effect of landform on GSR over CT should be considered. (2) In default of practical observation data in side of the mountain, to build a physical empirical statistics model mainly by observation data at conventional meteorological station it is a feasible approach to radiation resource calculation of refined net.