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Tide forecasting method based on global positioning system

A satellite positioning system and tidal forecasting technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as inability to predict tides, achieve market-oriented transformation, considerable economic and social benefits, and create economic and The effect of social benefits

Inactive Publication Date: 2017-02-22
青岛地球软件技术有限公司
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Problems solved by technology

Existing tidal forecast data products such as tide tables can only forecast the daily tidal conditions of some coastal locations in a certain period of time in the future, and cannot forecast the tidal conditions at any location and at any time. Real-time acquisition is required for shipping, production, and marine surveying and mapping. The tidal demand for the location of the area of ​​interest cannot be met

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  • Tide forecasting method based on global positioning system
  • Tide forecasting method based on global positioning system
  • Tide forecasting method based on global positioning system

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Embodiment Construction

[0032] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0033] In order to solve the problem of real-time forecasting of tides at any position on the sea and realize the purpose of providing real-time tide forecasting services for shipping, production, ocean surveying and mapping, etc., the present invention provides a tide forecasting method based on a satellite positioning system, such as figure 1 shown, including the following steps:

[0034] Step 1: According to the tide gauge data, satellite altimeter data and water depth data, the data assimilation method is used to calculate the high-precision tidal harmonic constant of each tide based on the two-dimensional tidal wave accompaniment assimilation model;

[0035] Step 2: Obtain high-precision satellite positioning information in real time;

[0036] Step 3: According to the tidal harmonic constant of each part tide mentioned in step 1 and the satellite positioning in...

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Abstract

The invention discloses a tide forecasting method based on a global positioning system. The method comprises the specific steps that first, according to a tidal station, satellite altimeter data and water depth data, high-precision tidal harmonic constants of all tidal constituents are calculated through a data assimilation method and based on a two-dimensional tidal wave adjoint assimilation model; second, high-precision satellite positioning information is acquired in real time; third, according to the tidal harmonic constant data obtained in the first step and the satellite positioning information obtained in the second step, interpolating calculation is carried out through a distance weighting inverse ratio method, and the tidal harmonic constants of arbitrary points and tide forecasting data at arbitrary time are obtained; fourth, the tide data obtained in the third step is forecasted and output. The high-precision tidal harmonic constants can be acquired according to the two-dimensional tidal wave adjoint assimilation model, the high-precision satellite positioning information can be acquired in real time according to the global positioning system, and the tide forecasting data at arbitrary positions and time can be obtained based on the tidal harmonic constants and the satellite positioning information.

Description

technical field [0001] The invention relates to the fields of marine monitoring technology and resources and environment, in particular to a tide forecasting method based on a satellite positioning system. Background technique [0002] Real-time and accurate tide forecasting is of great significance for shipping, production, and oceanographic mapping. The tide will change the water depth of the navigation area, which will affect the economy and safety of the ship's navigation: in terms of shipping, some waterways and harbors can only sail and enter and leave the port before and after high tide; In terms of production, coastal fisheries, aquaculture, agriculture, salt industry, resource development, port engineering construction, environmental protection, and tidal power generation all require mastering the characteristics and laws of tidal changes. [0003] Tides have a crucial impact on multi-beam bathymetry, which is a high-efficiency, high-precision and high-resolution s...

Claims

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Application Information

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IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 张俊明吕咸青李永全
Owner 青岛地球软件技术有限公司
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