Relation between the radiation temperature difference of the Earth's surface and data from satellite picture elements

Youmai Zhu; BaoSheng Cui; Yuzhong Ma; Nanzhi Zou

doi:10.1117/12.319525

19 August 1998 Discussion about the relation between the radiation temperature difference of the Earth's surface and data from satellite picture elements

Youmai Zhu, BaoSheng Cui, Yuzhong Ma, Nanzhi Zou

Author Affiliations +

Proceedings Volume 3504, Optical Remote Sensing for Industry and Environmental Monitoring; (1998) https://doi.org/10.1117/12.319525
Event: Asia-Pacific Symposium on Remote Sensing of the Atmosphere, Environment, and Space, 1998, Beijing, China

Abstract

In the satellite remote sensing the resolution of the satellite image is always a restriction on the obtaining information and it is impossible that the resolution of pixel is unlimitedly raised. In the infrared region, the pixel values in a uniform picture element isn't effected by the resolution of pixel, but it is another case to some non- uniform picture elements. Each pixel value corresponds to the integration by the radiant excitance of the earth's surface inside of the pixel and is associated with not only the area of same radiation temperature but also the value of radiation temperature inside of the element. In this paper, the relationship between the pixel values and the area of same radiation temperature as well as the value of radiation temperature inside of the pixel was presented. A new train of ideas was given for the obtaining more information by today's resolution of pixel. With the help of this result, the monitor of some natural calamities (for example, the forest fire, the flood, the plant diseases and insect pests, etc.) will become much timely and they could be controlled as soon as possible.

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Youmai Zhu, BaoSheng Cui, Yuzhong Ma, and Nanzhi Zou "Discussion about the relation between the radiation temperature difference of the Earth's surface and data from satellite picture elements", Proc. SPIE 3504, Optical Remote Sensing for Industry and Environmental Monitoring, (19 August 1998); https://doi.org/10.1117/12.319525

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KEYWORDS

Satellites

Image resolution

Earth observing sensors

Sensors

Floods

Infrared radiation

Optical resolution

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