LUO Han,ZHAO Ting-ning,ZHAO Zhi-feng,et al.Study on the Distribution Regularity of the Solar Radiation Based on ViewGIS 3.0 in Hilly and Gully Regions on the Loess Plateau[J].Research of Soil and Water Conservation,2009,16(03):206-211.
基于ViewGIS 3.0的半干旱黄土丘陵沟壑区太阳辐射分布规律研究
- Title:
- Study on the Distribution Regularity of the Solar Radiation Based on ViewGIS 3.0 in Hilly and Gully Regions on the Loess Plateau
- 关键词:
- 太阳辐射; ViewGIS 3.0; 分布规律
- Keywords:
- solar radiation; ViewGIS 3.0; distribution regularity
- 分类号:
- S161.1
- 摘要:
- 基于ViewGIS的太阳直接辐射模拟计算功能，进行了峪口花果山太阳直接辐射时空分布规律的研究，并对太阳直接辐射模型进行了精度校验和误差分析，以期为当地的区域规划和生态环境建设提供基础资料和科学依据。主要结论：（1）太阳辐射总体趋势为一日中日出和日落前后的误差变化较为剧烈，中间阶段变化平稳。（2）太阳直接辐射随时间的变化呈现早晚小、中午大的变化规律。（3）太阳直接辐射随月份的变化也呈单峰型的变化规律，即7月份太阳直接辐射值最大，依次向两边递减。（4）太阳直接辐射随24个节气的变化呈典型的正态分布规律，即以夏至日太阳直接辐射值为中心依次向两边递减的规律。（5）不同坡度，随着坡度增大，太阳直接辐射日总量逐渐减小；不同坡向，太阳直接辐射日总量南坡最大，东南坡、西南坡次之，北坡最小。
- Abstract:
- The research on spatial-temporal distribution regularies of solar direct radiation in Huaguoshan Yukou were conducted, which were based on the solar radiation model of ViewGIS. The purpose of this paper is to provide primal data and scientific evidence for region plan and environment construction. The main conclusions: (1) On the whole solar radiation trend is that during one day errors vary dramatically at the time of sunrise and sunset but at noon errors vary smooth. Cloudy, the errors of contrast of solar direct radiation conversion values and simulating values vary dramatically which showed that error increases with cloudage. So the model doesn’t go well in few-cloudy and cloudy days. (2) During one day, the value of solar radiation is low in morning and evening but high at noon. What’s more, solar direct radiation variation is of high speed in the process of warming up in the morning and cooling down in the afternoon, while at noon solar direct radiation varies smooth. (3)During a year, solar radiation variation regularity is single peak curve and the max of solar radiation appears respectively in July which is the center of the curve. (4) In 24 solar terms, the max and min of solar radiation appear respectively in the Summer Solstice and the Winter Solstice which follow the regularity of normal distribution with the center of the Summer Solstic. (5) In different slope, along with the gradient increasing, the solar direct radiation is gradually reduced. Between the different orientations, in south slope the total solar direct radiation is the greatest, southeast and southwest less, north least.
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备注/Memo
收稿日期:2008-11-17。
基金项目:国家“十一五”科技支撑计划专题“黄土高原丘陵沟壑半干旱区水土保持抗旱造林及径流林业技术试验示范”（2006BAD03A1201）
作者简介:骆汉（1985- ），男，山东淄博人，硕士生，主要研究方向：工程绿化。E-mail：gylxjd@163.com
通讯作者:赵廷宁（1962- ），男，河北阳原人，教授，博士生导师，主要研究方向：工程绿化。E-mail：zhtning@bjfu.edu.cn