Earticle

초록

영어

Incident solar radiation is one of the major sources of energy for driving biological and physical processes on earth. In this paper, simple conversion factors are designed to determine how the four landforms (i.e. plain, plateau, hill and mountain) will affect incident solar radiation at one month intervals using the ArcGIS tool appropriate for regional solar radiation analysis. A comparison is made between simulation results and those measurements taken in actual radiation stations, providing a correlation R2 of 0.9063. Results indicate first, that if the ratio of the monthly mean of the DEM-based regional solar radiation to the monthly mean of the hypothesis DEM-based regional solar radiation is defined as the conversion factor (R) of the solar radiation and the ArcGIS tool for regional solar radiation analysis is employed, then the computation can be simplified and the impact of terrain factors on incident solar radiation can be correctly represented. Secondly, with each of the four landforms, R varies according to the season, slope gradient and aspect; the season induces more impacts than the terrain factors; R increases first and then decreases when the aspect changes clockwise, but decreases continuously with an increase in slope grade; R varies in a complex way in the case of mountains, especially for grade-five slopes. Thirdly, R increases initially and then decreases in a sinusoidal manner with an increase in aspect under the influence of slope gradient during the winter; R varies in a linear and somewhat symmetric manner (monotone increasing, monotone decreasing and stable) with the increase in slope gradient and under the influence of the aspect. These results are helpful in studying the impact of terrain factors of different landforms on incident solar radiation on the landscape scale using the simple conversion factors.

목차

Abstract
 1. Introduction
 2. Research Area and Method
  2.1. Overview of Research Area
  2.2. Data Preparation
  2.3. Research Method
 3. Result and Analysis
  3.1. Verification and Analysis of Simulation Results
  3.2. Variation of R with Season, Slope Gradient and Direction in Different Landforms
  3.3. Variation of R with Season, Aspect and Gradient across the Region
 4. Discussion and Conclusion
 Acknowledgments
 References

키워드

저자

• Xiaodan Mei [ School of Forestry, Northeast Forestry University, Harbin150040, China, Schools of Surveying and Mapping Engineering, Heilongjiang Institute of Technology, Harbin150050, China ]
• Wenyi Fan [ School of Forestry, Northeast Forestry University, Harbin150040, China ]
• Xuegang Mao [ School of Forestry, Northeast Forestry University, Harbin150040, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Smart Home

• 간기

  격월간

• pISSN

  1975-4094

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605