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Method for quickly updating air pollutant emission list of straw open-air incineration

A technology of air pollutants and updating methods, which is applied in the field of rapid update estimation of annual-provincial emission inventory of air pollutants in straw open-air burning, can solve the problems of underestimation of emissions, avoid update lag, quickly establish and update, and avoid underestimation problem effect

Pending Publication Date: 2021-05-14
BEIJING UNIV OF TECH
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Problems solved by technology

[0006] Aiming at the above-mentioned problems existing in the prior art, the present invention combines the advantages of the above-mentioned two estimation methods to provide an estimation method that can quickly establish or update the emission inventory of straw open-pit burning air pollutants, which can make up for important basic data—— The absence of the proportion of straw open-air burning can avoid the underestimation of emissions caused by satellites missing the fire point, and realize the rapid update of the air pollutant emission inventory of straw open-air burning

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  • Method for quickly updating air pollutant emission list of straw open-air incineration
  • Method for quickly updating air pollutant emission list of straw open-air incineration

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Embodiment

[0090] The invention provides a method for estimating the emission list of air pollutants from straw open-air burning, including:

[0091]S1. Log in to the official website of NASA and download the monthly fire point data product (MCD14ML) of the MODIS (Moderate Resolution Imaging Spectrometer) sensor from 2003 to 2018. It is updated monthly in txt format and covers fire point information around the world . Its data products include data such as the time when the fire occurred, latitude and longitude information, and the thermal radiation power of the fire. According to its latitude and longitude, it was converted into vector data in ArcGIS software, and the fire points with low confidence level (conf<20) were eliminated.

[0092] S2. From the website of the Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences ( http: / / www.resdc.cn ) to download the raster data of China's land use remote sensing monitoring and the vector data of China...

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Abstract

The invention discloses a method for rapidly updating a straw open-air incineration air pollutant emission list. The method comprises the steps: using ArcGIS for recognizing a month-by-month straw open-air incineration fire point; dividing the whole region into six areas according to geographic positions; based on the identified thermal radiation power and region division of the month-province straw open-air incineration fire point, calculating the thermal radiation energy of the month-province straw open-air incineration fire points; acquiring the annual-provincial open-air straw incineration proportion data based on actual investigation and establishing open-air straw incineration proportion estimation models based on satellite remote sensing thermal radiation energy for the six areas respectively; establishing a year-province straw open-air incineration proportion estimation database containing all target years and provinces; collecting other activity level data and emission factors required for estimating emission of air pollutants in open-air straw incineration by a bottom-to-top method; and estimating an annual-provincial straw open-air incineration air pollutant emission list. According to the method, the annual-provincial straw open-air incineration air pollutant emission list can be quickly updated.

Description

technical field [0001] The invention belongs to the technical field of atmospheric environment, and relates to a method for estimating an air pollutant discharge inventory for straw open-air burning, in particular to a method for estimating rapid update of an annual-provincial emission inventory for straw open-air burning air pollutants. Background technique [0002] The emission inventory of air pollutants from straw open burning is the key basic information for studying the formation mechanism of regional atmospheric compound pollution and formulating related control programs. There are currently two mainstream estimation methods: [0003] (1) Bottom-up method. This method can estimate emissions based on straw open-air burning and emission factors. The advantage is that more accurate emissions can be obtained. In estimating the amount of open straw burning, the proportion of open straw burning is an important data to accurately estimate the amount of straw burning. Howev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/23G06F16/2458G06F16/29
CPCG06F16/2379G06F16/2462G06F16/29
Inventor 周颖张钰蓥郎建垒
Owner BEIJING UNIV OF TECH
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