Quick calculation method of ground surface solar radiation flux

A solar radiation and fast calculation technology, applied in the field of satellite remote sensing, can solve the problems of low calculation efficiency of surface solar radiation flux, achieve the effects of improving calculation efficiency and calculation accuracy, high calculation efficiency, and avoiding a large number of repetitions

Inactive Publication Date: 2017-10-13
INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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Problems solved by technology

[0006] In view of this, in order to solve the problem of low calculation efficiency of surface solar radia...

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  • Quick calculation method of ground surface solar radiation flux
  • Quick calculation method of ground surface solar radiation flux
  • Quick calculation method of ground surface solar radiation flux

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[0022] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0023] According to the radiative transfer theory, the solar radiation reaching the surface can be divided into diffuse radiation and direct radiation. The atmospheric radiation transfer model is a model that describes the process of solar radiation from the top of the atmosphere to the surface through the scattering, reflection and absorption of atmo...

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Abstract

The invention discloses a quick calculation method of ground surface solar radiation flux and solves the problem of low ground surface solar radiation flux calculation efficiency. The quick calculation method includes following steps: utilizing an atmospheric radiation transmission model to simulate ground surface solar radiation flux corresponding to satellite data under different numerical values, and building a ground surface solar radiation flux database to acquire a ground surface solar radiation flux lookup table; downloading the satellite data which include solar zenith angle, cloud optical thickness, cloud effective particle radius, aerosol optical thickness, aerosol type and gray value; acquiring the ground surface solar radiation flux according to the lookup table. By the quick calculation method, a lot of repeated and redundant calculation work is avoided, and calculation efficiency and calculation accuracy are improved greatly.

Description

technical field [0001] The invention relates to the technical field of satellite remote sensing, in particular to a calculation method for surface solar radiation flux. Background technique [0002] At present, solar radiation observations mostly rely on ground-based radiation observation stations, but the number of ground-based observation stations is limited and their distribution is uneven around the world, making it difficult to obtain a large-scale distribution of solar radiation. [0003] With the development of remote sensing technology, using satellite remote sensing data as a data source for obtaining surface solar radiation has become the mainstream. Satellite observations are not restricted by region, providing a new way to estimate surface solar radiation in any region. Among them, the geostationary satellites have a very high time resolution and can monitor and obtain satellite images of the study area in real time. For example, China’s Fengyun series geostatio...

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Application Information

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IPC IPC(8): G06F1/03G06F17/30
Inventor 胡斯勒图尚华哲黎微微
Owner INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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