Abstract
Although many research studies have estimated insolation over the Korean Peninsula, most of them employed foreign satellite imagery. In order to provide improved estimates of solar insolation of the Korean peninsula using Koran's first geostationary satellite-the Communication, Ocean and Meteorological Satellite Meteorological Imager (COMS MI)-the Heliosat method was appropriately modified and applied. The algorithm is one of the most popular methods and calculates global horizontal irradiance from images taken in the visible range. Spectral distribution of solar irradiance especially in the visible range plays an important role in the process of converting radiance to reflectance. Although many models measure spectral distribution of solar radiance, the most suitable spectra for the COMS MI sensor response functions have not been confirmed. In this paper, three representative solar irradiance spectra-Wehrli 1985-WMO, ASTM E-490, and ASTM G173-03-were compared and reflectance was estimated using these solar irradiance spectra by the Heliosat method. The results showed that ASTM E-490 had the lowest RMSE value among the reference data. Therefore, ASTM E-490 could be a suitable spectrum to estimate solar irradiance with COMS MI applying the Heliosat method.
| Original language | English |
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| State | Published - 2014 |
| Event | 35th Asian Conference on Remote Sensing 2014: Sensing for Reintegration of Societies, ACRS 2014 - Nay Pyi Taw, Myanmar Duration: 27 Oct 2014 → 31 Oct 2014 |
Conference
| Conference | 35th Asian Conference on Remote Sensing 2014: Sensing for Reintegration of Societies, ACRS 2014 |
|---|---|
| Country/Territory | Myanmar |
| City | Nay Pyi Taw |
| Period | 27/10/14 → 31/10/14 |
Keywords
- COMS MI
- Heliosat
- Solar irradiance spectra