Drainage basin wetness-dryness prediction method and system based on climatic factors
A technology of climatic factors and forecasting methods, applied in forecasting, instrumentation, data processing applications, etc., can solve the problems of runoff size error, inability to measure directly, and cycle model estimated runoff error, so as to improve accuracy, reasonable and effective water resources The effect of planning utilization and improving accuracy
A technology of climatic factors and forecasting methods, applied in forecasting, instrumentation, data processing applications, etc., can solve the problems of runoff size error, inability to measure directly, and cycle model estimated runoff error, so as to improve accuracy, reasonable and effective water resources The effect of planning utilization and improving accuracy
CN108229735AActive Publication Date: 2018-06-29STATE GRID QINGHAI ELECTRIC POWER +2
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[0042] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0043] The method and system for predicting watershed abundance and dryness based on climatic factors according to the embodiments of the present invention will be described below with reference to the accompanying drawings.
[0044] figure 1 It is a flowchart of a method for predicting watershed abundance and drought based on climatic factors according to an embodiment of the present invention.
[0045] like figure 1 As shown, the forecast method of watershed abundance and dryness based on climatic factors includes the followi...
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The invention discloses a drainage basin wetness-dryness prediction method and system based on climatic factors. The method comprises the following steps that: establishing a teleconnection model of multiple pieces of climatic factor data of a drainage basin water-vapor flux and a drainage basin air temperature teleconnection model; establishing a related model of the drainage basin water-vapor flux, air temperature and drainage basin evaporation and precipitation; combining a drainage basin water-vapor flux teleconnection model with a drainage basin air temperature teleconnection model, and predicting to obtain the drainage basin water-vapor flux and the drainage basin air temperature; and according to the drainage basin water-vapor flux and the drainage basin air temperature, combining the drainage basin evaporation and precipitation related model, combining drainage basin landform with underlaying surface information to predict a drainage basin wetness-dryness situation according to drainage basin evaporation and precipitation. By use of the method, time prediction accuracy can be effectively improved, runoff volume prediction accuracy is effectively improved so as to improve the accuracy of a long-term wetness-dryness situation in the drainage basin, and reasonable and effective water resource planning and utilization can be realized.
Description
technical field [0001] The invention relates to the technical field of hydrological forecasting, in particular to a method and system for predicting the abundance and dryness of a watershed based on climate factors. Background technique [0002] The abundance and dryness of the watershed refers to the size of the river runoff in the watershed, which has an important impact on the national economy and the production and life of the people. Predicting the abundance and dryness of the watershed can provide important guidance for production and life. [0003] At present, the main method of predicting the watershed's mid- and long-term abundance and dryness is to establish a periodic model based on the historical data of the watershed's abundance and drought, and predict the watershed's abundance and drought in the future based on the cycle model. However, the periodic model only makes statistics on the appearance of the watershed's abundance and dryness, and does not reveal the ...
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Patent Timeline
29 Jun 2018
Publication
CN108229735A
- IPC
- G06Q10/04; G06Q50/26
- CPC
- G06Q10/04; G06Q50/26
- Inventors
- ่ๆทผ; ้ญๅ ๅ