Study on spatial scale effect of DEM resolution on spatial simulation of duration of possible sunshine in China(我国地理可照时数空间分布模拟中尺度效应研究)
不同空间分辨率的DEM 会对地理可照时数模拟结果产生显著影响。为了分析DEM 尺度效应对我国不同区域地理可照时数的影响,选取小兴安岭、太行山区、秦岭、青藏高原弧形山区、横断山区和东南丘陵6 个实验区,基于3 种空间分辨率的DEM 和地理可照时数分布式模型,利用GIS 的多层面复合分析功能,模拟了典型月份不同空间尺度的地理可照时数,定量分析了典型地形因子与模拟结果的关系,并探讨了DEM 尺度效应的影响。研究结果表明:(1) 我国地理可照时数差异明显,1 月、7 月及其差异主要受剖面曲率、海拔、纬度、地形阴影和地形起伏度等因子的影响;(2) 我国地理可照时数与典型地理和地形因子之间极显著相关,复相...
| Published in: | Zhejiang Daxue xuebao. Lixue ban |
|---|---|
| Main Authors: | LIJun(李军), HUANGJingfeng(黄敬峰), GONGWei(龚围), WANGChao(王超), LIBing(李冰) |
| Format: | Article |
| Language: | Chinese |
| Published: |
Zhejiang University Press
2019-03-01
|
| Subjects: | |
| Online Access: | https://doi.org/10.3785/j.issn.1008-9497.2019.02.009 |
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