Drought evaluation system for inland river drought oasis zone

An evaluation system and oasis area technology, applied in the field of drought evaluation system in inland river arid oasis area, can solve the problems of difficulty in reflecting the natural and social attributes of drought, fragmenting the integrity of the water cycle, and difficulty in characterizing the randomness and certainty of drought.

Inactive Publication Date: 2016-09-07
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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Problems solved by technology

[0005] The main disadvantage of these methods is that the evaluation is based on a single or several links of the water cycle, which splits the integrity of the water cycle, and it is difficult to reflect the natural and social attributes of drought, and it is difficult to characterize the dual characteristics of randomness and determinism of drought.

Method used

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  • Drought evaluation system for inland river drought oasis zone
  • Drought evaluation system for inland river drought oasis zone
  • Drought evaluation system for inland river drought oasis zone

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Embodiment 1

[0059] Embodiment 1: see figure 1 , a drought evaluation system for inland river arid oasis areas, guided by the "natural-artificial" binary water cycle theory, based on the Palmer drought index, from the perspective of water resources systems, comprehensively considering the interdependence of drought events Based on multiple influencing factors of the relationship, the water shortage model of the assessment unit is redefined, and a set of drought assessment indicators that can be applied to the arid oasis area of ​​inland rivers is constructed. The oasis area of ​​the Aksu River Basin, where drought events occur frequently, is selected for empirical research. The specific steps are as follows:

[0060] (1) Calculation of water shortage

[0061] Based on the "natural-artificial" binary water cycle process, according to the meteorological and hydrological data and water consumption data in the watershed, the water supply and water demand under different scenarios of different...

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Abstract

The invention discloses a drought evaluation system for an inland river drought oasis zone. The method includes the following steps: 1) calculating the water resource shortage amount; 2) calculating water resource shortage index; 3) establishing drought evaluation indexes; and 4) modifying parameters. Compared with the prior art, the drought evaluation system can construct the drought evaluation indexes suitable for the inland river drought oasis zone from a water resource system perspective, solves the problem of inland river drought evaluation for a long term, can scientifically and fully reflect characters of drought events. The drought evaluation system can be widely applied to drought evaluation of the inland river drought oasis zone which is affected by human activities, in particular to drought quantification evaluation of the Aksu river basin oasis zones.

Description

technical field [0001] The invention relates to the technical field of drought monitoring, in particular to a drought evaluation system for an inland river arid oasis area. Background technique [0002] The fifth IPCC assessment report on climate change pointed out that in the past half a century, almost all regions of the world have experienced warming, and the fastest warming region is the mid-latitude region of the northern hemisphere. The arid region in Northwest my country is located in the hinterland of Eurasia in the mid-latitude zone, and is a sensitive area under global climate change. The water resource environment here is special, the ecological environment is relatively fragile, and the exchange between groundwater and surface water is frequent. Water resources have become a key factor that restricts social and economic development and affects ecological security, and plays a vital role in the sustainable development of the future economy and society. Under the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCG06F2219/10G16Z99/00
Inventor 翁白莎严登华王浩刘家宏李思诺
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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