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Background screening method for atmospheric greenhouse gas online observation data

A greenhouse gas and observation data technology, applied in data processing applications, structured data retrieval, electronic digital data processing, etc., can solve the problems of poor universality or feasibility, insufficient physical meaning, etc., and achieve fine screening and easy processing Acquisition and universal effects

Pending Publication Date: 2020-12-15
武汉区域气候中心
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Problems solved by technology

However, the existing atmospheric greenhouse gas background screening methods usually have problems of insufficient physical meaning, poor universality or poor feasibility.

Method used

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  • Background screening method for atmospheric greenhouse gas online observation data
  • Background screening method for atmospheric greenhouse gas online observation data
  • Background screening method for atmospheric greenhouse gas online observation data

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Embodiment

[0061] Taking the background screening of a certain greenhouse gas three-year observation data of a domestic atmospheric background station as an example, the background screening method of the atmospheric greenhouse gas online observation data of the present invention is described in detail, and the present invention is applied to other atmospheric backgrounds The background screening of station greenhouse gases also plays a guiding role.

[0062] Such as figure 1 As shown, the background screening method for a certain greenhouse gas three-year observation data of an atmospheric background station includes the following steps:

[0063] Step S1: Data collection, obtaining online observation data of atmospheric greenhouse gases and observation data of wind speed and wind direction during the same period;

[0064] Collect the 3-year gas chromatography (GC) online observation concentration data of a certain greenhouse gas at an atmospheric background station, with a time resolut...

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Abstract

The invention discloses a background screening method for atmospheric greenhouse gas online observation data. The method comprises the following steps of 1, collecting greenhouse gas online observation data and synchronous wind data; 2, preprocessing the data; 3, identifying source emission influence information; 4, performing background screening; 5, obtaining a reasonable background concentration; if the result is reasonable, finishing screening; and if the result is not satisfactory or doubted, returning to the step 3, and redrawing the binary conditional probability function graph by adopting different time periods or different concentration intervals to carry out source information identification until a reasonable background concentration is obtained. The method has the advantages ofbeing clear in physical significance, high in universality, high in feasibility and fine in screening treatment.

Description

technical field [0001] The invention relates to the field of data background screening, more specifically, it relates to a background screening method for online observation data of atmospheric greenhouse gases. Background technique [0002] Since the Industrial Revolution, greenhouse gases (CO) emitted by human activities 2 , CH 4 , N 2 O, etc.) concentrations are rising, with enormous impacts on atmospheric chemistry and global climate. In order to grasp the concentration level and change characteristics of atmospheric greenhouse gases, many institutions at home and abroad have successively established atmospheric observation stations in many regions of the world to carry out observations of greenhouse gases and their related trace components. Under the framework of the World Meteorological Organization's Global Atmospheric Observation Network (WMO / GAW) project, networked observations of greenhouse gases have been carried out at seven atmospheric background stations, in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/2458G06F16/248G06F16/29G06Q50/26
CPCG06F16/2462G06F16/248G06F16/29G06Q50/26
Inventor 吕桅桅方双喜
Owner 武汉区域气候中心
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