Depicting method for terrestrial atmospheric aerosol retrieval distributed workflow dependency

A technology of dependency and terrestrial atmosphere, applied in the field of high-performance geoscience computing, it can solve the problems of chaotic abstraction level, incomplete description method, and no implementation, etc., and achieve the effect of rapid inversion.

Inactive Publication Date: 2016-03-23
DONGGUAN UNIV OF TECH
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Problems solved by technology

When describing these processes, using natural language or data flow diagrams, etc., will lead to conflicting statements and different ways of understanding the statements, ambiguity will almost inevitably arise, and these descriptions are incomplete and abstract levels confusion
Therefore, it is necessary to us

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  • Depicting method for terrestrial atmospheric aerosol retrieval distributed workflow dependency
  • Depicting method for terrestrial atmospheric aerosol retrieval distributed workflow dependency

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Embodiment Construction

[0051] The gist of the present invention is to overcome the deficiencies of the prior art, to provide a mathematical formalization method for describing the dependency relationship of the distributed workflow in the inversion process of MOSDIS data land atmospheric aerosol remote sensing, and to describe the dependency relationship, parallelism and serial relationship. Through this mathematical formalization method, related scheduling algorithms can be written to drive the orderly execution of the aerosol inversion process in a distributed computing environment. The following will describe in detail with reference to the accompanying drawings in conjunction with the embodiments, so as to further explain the technical features and advantages of the present invention.

[0052] Method flow chart of the present invention is as figure 1 As shown, the present invention establishes a software architecture method on the basis of mathematical formalization, which is a strict and effec...

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Abstract

The invention provides a method for depicting terrestrial atmospheric aerosol retrieval distributed workflow dependency, and relates to the field of high-performance geocomputation, in particular to cloud computing-oriented MOSDIS (Moderate-Resolution Imaging Spectroradiometer) data. According to the method, through establishment of a multiple element group, six key elements are used to describe a finite graph distributed in a network in a mathematical formalization manner to realize mathematical formalization depiction of the aerosol remote sensing retrieval distributed workflow dependency; and after related remote sensing processing tasks, configuration and control information are acquired through interpretation of the abstract depicting method, an abstract service flow is subjected to resource mapping to obtain Web Service-encapsulated remote sensing retrieval processing and data processing related service to drive an aerosol retrieval processing process to be executed in the distributed calculation condition. In a flow definition phase, the Web Services are called; and through conversion control of four construction modules of AND-split, AND-join, OR-split and OR-join, ordered execution can be realized according to the relations between parallel and serial, and predecessor and successor, so that the quick retrieval of aerosol is realized.

Description

technical field [0001] The invention relates to the field of high-performance geoscience computing, in particular to a cloud-computing-oriented MODIS data terrestrial atmospheric aerosol inversion distributed workflow dependency description method. Background technique [0002] MODIS (English abbreviation for moderate-resolution imaging spectroradiometer, full name is moderate-resolution imaging spectroradiometer) remote sensing inversion of terrestrial atmospheric aerosol data requires a large amount of data preprocessing and calculation of complex radiative transfer equations, which requires a large amount of calculation and takes a long time. These processing processes mainly include data preprocessing such as calibration, radiation transfer, and set correction, image processing such as band calculation, image transformation, and data fusion, inversion operations such as solving nonlinear equations, and post-processing operations. Using the distributed workflow technology...

Claims

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Application Information

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IPC IPC(8): G06F9/46G06F17/30
CPCG06F9/465G06F16/252G06F16/951
Inventor 刘敏霞吴木营郭文琦徐永钊王红成
Owner DONGGUAN UNIV OF TECH
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