Method for analyzing moisturization of sea level by linear fitting according to adjacent wind speed and wind direction data

Abstract

The invention relates to a method for analyzing moisturization of a sea level by linear fitting according to adjacent wind speed and wind direction data. According to the method, a math relation formula is constructed between wind situation data and sea level moisturization data according to historical sea level data and astronomic tide data of a sea level monitoring station on the basis of peripheral wind situation stations; and a future forecast value is calculated by using the formula. By the method, required historical information data are single; hydro meteorology departments of different places have the type of data, so that the difficulty in acquisition of the data required by forecasting is greatly and effectively reduced, and a relatively good data environment is supplied to successful running of sea level forecasting; moreover, the method is relatively low in setting cost; the moisturization situation can be analyzed by using the main wind direction of a definite tidal river, so that the arrangement cost and the execution cost are greatly reduced, and forecasting popularization of coastal seal level monitoring stations is facilitated.

Description

technical field [0001] The invention relates to the application fields of flood control informatization and hydrology and meteorology, in particular to a method for performing linear fitting analysis of tide level increase by using adjacent wind speed and wind direction data. Background technique [0002] At present, for hydrological forecasting methods, most of them use the Xin'anjiang model for water level forecasting. The Xin'anjiang model is a hydrological model proposed by Hohai University, and it is a rare hydrological model in China with world influence. The Xin'anjiang model is a dispersive model that can be used in wet seasons in humid and sub-humid regions. When the basin area is small, the Xin'anjiang model adopts the lumped model, and when the area is large, the block model is adopted. It divides the whole basin into many unit basins, calculates the production and confluence of each unit basin, and obtains the outlet flow process of the unit basin. Then carry ...

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Problems solved by technology

[0003] The Xin'anjiang model focuses on the method of hydrological forecasting for the watershed, and considers many influencing factors. Among the factors considered, the meteorological factors are more concerned with the amount of rainfall, while the astronomical tides and wind speeds that affect the tidal level , The consideration of the wind direction is relatively small, so the forecast results are not very reasonable for the tide level forecast along the coast

In addition, because the model method is relatively large, requires a lot of historical data, and many parameter settings, it is difficult to deploy and implement due to incomplete historical data. In addition, the cost of model purchase is relatively high. Facilitate large-scale promotion

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