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Method for detecting basin evaporation amount

A technology of evaporation and watershed, applied in the direction of instruments, etc., can solve the problems of runoff observation powerlessness, etc., and achieve the effect of small data volume, simple calculation and easy use

Active Publication Date: 2012-12-12
TSINGHUA UNIV
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AI Technical Summary

Benefits of technology

This technology allows us to accurately predict how much rainwater will fall into different areas within our country's basin during certain times or months depending upon factors like temperature, humidity levels, rainfall patterns, etc., without requiring detailed knowledge about these variables themselves. It also includes various techniques such as direct computation from specific equations derived through numerical analysis of sedimentary ground properties called potentiostimulation coefficients, where changes caused by environmental factors are captured as indicators of land usage. Overall this new approach provides an efficient way to measure and model sea level evaporations compared to existing approaches.

Problems solved by technology

The technical problem addressed in this patents relates to accurately predicting changes in groundwater levels due to climate conditions or other environmental influences like rainfall. Current methods require significant computational effort and cannot provide realistic results with short measurement times.

Method used

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  • Method for detecting basin evaporation amount
  • Method for detecting basin evaporation amount
  • Method for detecting basin evaporation amount

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] The method of the present invention can be summarized as follows: firstly, the multi-year average monthly precipitation, the multi-year average monthly potential evaporation, and the daily average precipitation intensity of the watershed are obtained from the statistics of precipitation and potential evaporation data; and the soil saturated hydraulic conductivity of the watershed is obtained from the soil type data. Then, the climate seasonality index was calculated from the multi-year average monthly precipitation and the multi-year average monthly potential evaporation, and further combined with the daily average precipitation intensity and soil saturated hydraulic conductivity to calculate the watershed characteristic parameter n. Finally, the parameter n, the multi-year average annual precipitation and the multi-year average annual potential...

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Abstract

The invention relates to a method for detecting a basin evaporation amount. The method comprises the following steps: 1) a basin average monthly rainfall amount for years, a basin average monthly potential evaporation amount for years, and basin daily average rainfall intensity are obtained by counting rainfall and potential evaporation data; and a basin soil saturated hydraulic conductivity is obtained through the soil type data. 2) a climate seasonal index is obtained by calculating the average monthly rainfall amount for years and the average monthly potential evaporation amount for years, and a basin characteristic parameter n is obtained by further combining the daily average rainfall intensity with the soil saturated hydraulic conductivity in a calculating manner. 3) the parameter n, a basin average annual rainfall amount for years, and a basin average annual potential evaporation amount for years are substituted to a basin water thermal coupling balance equation to obtain a basin actual evaporation amount. Compared with the traditional method, the method for calculating the basin evaporation amount according to basin climate conditions and underlying surface conditions has the advantage of obvious superiority and can be widely used in the process of detecting the basin evaporation amount.

Description

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Claims

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Application Information

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Owner TSINGHUA UNIV
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