ANALYSIS OF LOCAL CLOUD PROPERTIES USING DOWNWARD SOLAR RADIATION DATASET FROM GEOSTATIONARY SATELLITE

• THAPA CHHETRI Deepak Bikram

  Graduate school of Science and Engineering, Ehime University

• VERINA Herlin

  Graduate school of Science and Engineering, Ehime University

• FUJIMORI Yoshifumi

  Graduate school of Science and Engineering, Ehime University

• MORIWAKI Ryo

  Graduate school of Science and Engineering, Ehime University

Abstract

 The main objective of this study is to analyze downward shortwave radiation estimated from geostationary satellite by using an index called Clear Sky Rate (CSR) and apply it to see the impact of geographical and land use variation on clouds. Matsuyama, the target area in this study has mountains, plains and contrasting land uses of urban and rural areas. The following outcomes were obtained. CSR is likely to be lower in mountainous areas than in the plain areas. The temporal analysis shows that the CSR on the mountains decreases down to the midday and then increases accordingly with time compared to the plain areas. The comparison between urban and rural areas shows that formation and thickness of cloud in an urban area are higher than the rural area in the afternoon. The CRS index and the dataset has a high potential to understand the local cloud properties.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 73 (4), I_481-I_486, 2017

  Japan Society of Civil Engineers

Keywords

• solar radiation
• cloud thickness
• land use
• clear sky rate

Details

• CRID: 1390001205352622208
• NII Article ID: 130006406261
• DOI: 10.2208/jscejhe.73.i_481
• ISSN: 2185467X
• Web Site: https://www.jstage.jst.go.jp/article/jscejhe/73/4/73_I_481/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed