Hydrological drought monitoring system for areas without data

A monitoring system and technology without data, applied in resources, instruments, data processing applications, etc., to reduce the impact, solve the mismatch between water resource shortage and economic development, and reduce the gap between supply and demand

Pending Publication Date: 2021-12-28
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, recent studies have found that there are more and more short-term droughts (duration of days or weeks) caused by abnormal atmospheric circulation characteristics and changes in underlying surface conditions.

Method used

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  • Hydrological drought monitoring system for areas without data
  • Hydrological drought monitoring system for areas without data
  • Hydrological drought monitoring system for areas without data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Such as figure 1 As shown, a hydrological drought monitoring system in an area without data, the monitoring system includes:

[0057] The data simulation module is used to calculate simulation data according to remote sensing data, the remote sensing data including remote sensing precipitation data and remote sensing soil water content data, the simulation data including natural runoff data, underground water storage data and soil water content data;

[0058] A comprehensive drought index building block for constructing a drought index from simulated data, said drought index including standardized runoff index SRI, groundwater storage anomaly percentage I wt and soil water stress index K sw , and construct the comprehensive drought index CWRI according to the weight of each drought index in the comprehensive drought index;

[0059] The drought identification and grade division module is used to determine the drought grade according to the comprehensive drought index a...

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Abstract

The invention discloses a hydrological drought monitoring system for a data-free area, and belongs to the technical field of drought monitoring. The system comprises a data simulation module used for calculating simulation data according to remote sensing data, wherein the remote sensing data comprises remote sensing rainfall data and remote sensing soil water content data, and the simulation data comprises natural runoff data, underground water storage data and soil water content data; a comprehensive drought index construction module which is used for constructing drought indexes according to the simulation data, wherein the drought indexes comprise a standardized runoff index, an underground water storage average percentage and a soil moisture stress index, and the comprehensive drought index construction is also used for constructing a comprehensive drought index according to the weight of each drought index in the comprehensive drought index; and a drought identification and grade division module which is used for determining the drought grade according to the comprehensive drought index and the grade division standard of the comprehensive drought index. According to the method, the overall and local hydrological drought conditions of the research area can be accurately identified, and the severity of the drought is graded.

Description

technical field [0001] The invention belongs to the technical field of drought monitoring, and in particular relates to a hydrological drought monitoring system in areas without data. Background technique [0002] Drought is one of the most common and most influential climate disasters in China. Since the 1970s, the frequency and intensity of droughts caused by global warming have shown a significant increase trend. The risk of global drought in the 21st century will further increase, seriously threatening my country's food security and social stability, and becoming one of the important factors restricting the sustainable development of society and economy. Drought traditionally refers to a slowly developing natural phenomenon that often takes months or longer to reach a maximum in intensity and extent to be visibly noticed. However, recent studies have found that there are more and more short-term droughts (duration of days or weeks) caused by abnormal atmospheric circul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/26
CPCG06Q10/06393G06Q50/26
Inventor 许海婷刘勇朱永华吕海深丁振宙
Owner HOHAI UNIV
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