RAPID CALCULATION OF TERRAIN PARAMETERS FOR RADIATION MODELING FROM DIGITAL ELEVATION DATA

被引：394

作者：

DOZIER, J ^{[1
]}

FREW, J ^{[1
]}

机构：

[1] NASA,GODDARD SPACE FLIGHT CTR,UNIV SPACE RES ASSOC,GREENBELT,MD 20771

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 1990年 / 28卷 / 05期

关键词：

D O I：

10.1109/36.58986

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Digital elevation models are now widely used to calculate terrain parameters to determine incoming solar and longwave radialion for use in surface climate models, interpretation of remote-sensing data, and parameters in hydrologic models. Because of the large number of points in an elevation grid, fast algorithms are useful to save computation time. We describe rapid methods for calculating slop and azimuth, solar illumination angle, horizons, and view factors for radiation from sky and terrain. Calculation time is reduced by fast algorithms and lookup tables. © 1990 IEEE

引用

页码：963 / 969

页数：7

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