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Method for quantificationally distinguishing contributions of different factors in water cycle evolution process

A technology of evolution process and water cycle, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as unconsidered, unable to quantitatively distinguish natural factors, etc., and achieve the effect of enriching theory and research methods

Inactive Publication Date: 2012-07-11
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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Problems solved by technology

This study is the first exploration of quantitative attribution research on the evolution of hydrological elements in the world, but the variables it focuses on are variables that are sensitive to temperature changes, without considering the hydrology and water resources such as evaporation, runoff, and water resources. In addition, the characteristics of the water cycle and the response mechanism to climate change may be different between the watersheds in the United States and the watersheds affected by high-intensity human activities in my country. This study only considered the impact of climate change, not Taking into account the influence of human activities such as water withdrawal, development and remodeling of surface water bodies due to human economic and social development, changes in local micro-topography, changes in land cover, and changes in the underlying surface caused by building construction, It is impossible to quantitatively distinguish the contributions of natural factors and human activities in the evolution of the water cycle in the basin, and it cannot meet the needs of scientifically identifying the driving factors of the evolution of the water cycle in the basin under high-intensity human activities.

Method used

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  • Method for quantificationally distinguishing contributions of different factors in water cycle evolution process
  • Method for quantificationally distinguishing contributions of different factors in water cycle evolution process
  • Method for quantificationally distinguishing contributions of different factors in water cycle evolution process

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Embodiment 2

[0041] This embodiment is an improvement of the first embodiment, and is a refinement of the hydrological model in the first embodiment. The hydrological model described in this embodiment is the WEP-L model.

[0042] The WEP-L model described in this example is a model that can not only better simulate natural water cycle processes such as "precipitation-evaporation-infiltration-flow generation-confluence-groundwater movement", but also simulate "water intake-water consumption-water consumption- Distributed hydrological model of artificial collateral water cycle processes such as drainage" (Jia Yangwen et al., 2005).

Embodiment 3

[0044] This embodiment is an improvement of the above embodiment, and is a refinement of the water resource allocation model of the above embodiment. The water resource allocation model described in this embodiment is the ROWAS model.

[0045] The ROWAS model described in this embodiment is based on the generalization of the water resource system, establishes a set of simulation calculation processes controlled by rules for the main elements and processes involved in the water resource system, and designs system water supply based on norms and decision-making procedures. , water use, water consumption, drainage, and operation scheduling of water conservancy projects, and control each link through parameters, and then combine the natural water cycle and artificial collateral water cycle as a whole to study the water resource allocation model (You et al., 2005; You Jinjun et al. , 2005).

Embodiment 4

[0047] This embodiment is an improvement of the above embodiment, and is a refinement of the above embodiment on the climate model. The climate model described in this embodiment is a PCM model.

[0048] The climate model PCM (Washington, 2000) described in this example has a higher resolution in ocean and sea ice simulation, and the simulated physical process is more realistic, and can better simulate the actual climate scenario and climate The global climate model of natural variability, PCM has corresponding forcing experiments that can reflect natural variability, natural factors such as solar activity and volcanic eruptions, and precipitation and temperature conditions under the conditions of climate warming caused by greenhouse gas emissions.

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Abstract

The invention relates to a method for quantificationally distinguishing contributions of different factors in a water cycle evolution process, which includes the following steps: building a binary water cycle model; judging evolution conditions of water cycle factors under action of different factors; calculating quantitative evaluation indexes of water cycle factor evolution in different conditions; and quantificationally distinguishing contributions of different factors in the water cycle evolution process. The method combines the fingerprint identification technology in the meteorology and climatology and the binary water cycle model in the hydrology and water resource science, and is a technique capable of quantificationally distinguishing contributions of natural factors and human activities in the water cycle evolution process, and can quantificationally distinguish contributions of the natural factors and the human activities in the water cycle evolution process by adopting the distributed river basin water cycle simulation technology, the climate mode and hydrological model coupling technology, a Monte Carlo statistical method and the fingerprint identification technology and comparing the quantitative evaluation indexes of water cycle factor change conditions in different conditions.

Description

technical field [0001] The invention relates to a method for quantitatively distinguishing the contributions of different factors in the evolution of the water cycle, which is a method for quantitatively distinguishing the contributions of different factors including natural factors and human activities in the evolution of the water cycle, and a method for using meteorology and climatology. Statistical techniques and binary water cycle models in hydrology and water resources are a technical method to quantitatively distinguish the contribution of natural factors and human activities in the evolution of the water cycle. Background technique [0002] Water is the source of life, the key to production, and the foundation of ecology. As a renewable resource, the amount of water resources is very limited and depends largely on the water cycle system. Due to the continuous enhancement of human activities such as the development and utilization of water resources and the constructi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 丁相毅贾仰文王浩牛存稳仇亚琴周祖昊
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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