Remotely Sensed Estimates of Solar Radiation in the Tropics Using Infrared Satellite Imagery

Ryuichi Shirooka; Kazushige Yamada; Tomoyoshi Hirota

doi:10.2480/agrmet.52.575

Remotely Sensed Estimates of Solar Radiation in the Tropics Using Infrared Satellite Imagery

Ryuichi Shirooka, Kazushige Yamada, Tomoyoshi Hirota

Research output: Contribution to journal › Article › peer-review

Abstract

A statistical method is presented for the estimation of global solar radiation at the ground surface. Daytime averaged “infrared” data taken by a geostationary meteorological satellite are applied to estimate the daily amount of global solar radiation around the tropics. In order to use the infrared equivalent blackbody temperature (IR T_BB) data as an indicator of cloud amount and activity in the daytime, the satellite data on each point of a 0.1 × 0.1 degree grid are averaged from 06 to 18 LST in one hour intervals. Surface solar irradiance is evaluated with the averaged TBB and a calculated solar radiation at the top of the atmosphere. Results are compared with measured radiation values over the ocean and on islands in the tropics. From the results of the estimation, the correlation coefficient is 0.88 and the root mean square error is 2.41 MJ/m² for daily estimation over the ocean, and 0.79 and 2.78 MJ/m² on islands.

Original language	English
Pages (from-to)	575-578
Number of pages	4
Journal	journal of agricultural meteorology
Volume	52
Issue number	5
DOIs	https://doi.org/10.2480/agrmet.52.575
Publication status	Published - Jan 1 1997
Externally published	Yes

All Science Journal Classification (ASJC) codes

Agronomy and Crop Science
Atmospheric Science

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title = "Remotely Sensed Estimates of Solar Radiation in the Tropics Using Infrared Satellite Imagery",

abstract = "A statistical method is presented for the estimation of global solar radiation at the ground surface. Daytime averaged “infrared” data taken by a geostationary meteorological satellite are applied to estimate the daily amount of global solar radiation around the tropics. In order to use the infrared equivalent blackbody temperature (IR TBB) data as an indicator of cloud amount and activity in the daytime, the satellite data on each point of a 0.1 × 0.1 degree grid are averaged from 06 to 18 LST in one hour intervals. Surface solar irradiance is evaluated with the averaged TBB and a calculated solar radiation at the top of the atmosphere. Results are compared with measured radiation values over the ocean and on islands in the tropics. From the results of the estimation, the correlation coefficient is 0.88 and the root mean square error is 2.41 MJ/m2 for daily estimation over the ocean, and 0.79 and 2.78 MJ/m2 on islands.",

author = "Ryuichi Shirooka and Kazushige Yamada and Tomoyoshi Hirota",

year = "1997",

month = jan,

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doi = "10.2480/agrmet.52.575",

language = "English",

volume = "52",

pages = "575--578",

journal = "journal of agricultural meteorology",

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publisher = "Society of Agricultural Meteorology of Japan/Nihon Nogyo Kisho Gakkai",

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T1 - Remotely Sensed Estimates of Solar Radiation in the Tropics Using Infrared Satellite Imagery

AU - Shirooka, Ryuichi

AU - Yamada, Kazushige

AU - Hirota, Tomoyoshi

PY - 1997/1/1

Y1 - 1997/1/1

N2 - A statistical method is presented for the estimation of global solar radiation at the ground surface. Daytime averaged “infrared” data taken by a geostationary meteorological satellite are applied to estimate the daily amount of global solar radiation around the tropics. In order to use the infrared equivalent blackbody temperature (IR TBB) data as an indicator of cloud amount and activity in the daytime, the satellite data on each point of a 0.1 × 0.1 degree grid are averaged from 06 to 18 LST in one hour intervals. Surface solar irradiance is evaluated with the averaged TBB and a calculated solar radiation at the top of the atmosphere. Results are compared with measured radiation values over the ocean and on islands in the tropics. From the results of the estimation, the correlation coefficient is 0.88 and the root mean square error is 2.41 MJ/m2 for daily estimation over the ocean, and 0.79 and 2.78 MJ/m2 on islands.

AB - A statistical method is presented for the estimation of global solar radiation at the ground surface. Daytime averaged “infrared” data taken by a geostationary meteorological satellite are applied to estimate the daily amount of global solar radiation around the tropics. In order to use the infrared equivalent blackbody temperature (IR TBB) data as an indicator of cloud amount and activity in the daytime, the satellite data on each point of a 0.1 × 0.1 degree grid are averaged from 06 to 18 LST in one hour intervals. Surface solar irradiance is evaluated with the averaged TBB and a calculated solar radiation at the top of the atmosphere. Results are compared with measured radiation values over the ocean and on islands in the tropics. From the results of the estimation, the correlation coefficient is 0.88 and the root mean square error is 2.41 MJ/m2 for daily estimation over the ocean, and 0.79 and 2.78 MJ/m2 on islands.

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ER -

Remotely Sensed Estimates of Solar Radiation in the Tropics Using Infrared Satellite Imagery

Abstract

All Science Journal Classification (ASJC) codes

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