CN-120656070-B - Method and device for monitoring continuous date of field flooding, electronic equipment and storage medium

CN120656070BCN 120656070 BCN120656070 BCN 120656070BCN-120656070-B

Abstract

The application relates to a field inundation continuous date monitoring method, a device, electronic equipment and a storage medium, wherein the method comprises the steps of obtaining quantitative precipitation estimation data of a target area and an optical remote sensing satellite image; the method comprises the steps of obtaining daily water distribution data of a target area according to quantitative precipitation estimation data, carrying out daily flooding area simulation on the target area by utilizing a hydrological model to obtain daily flooding area data of the target area, carrying out field block identification on an optical remote sensing satellite image to obtain field block distribution data, and obtaining the continuous date of field block flooding according to the daily water distribution data, the daily flooding area data and the field block distribution data. The daily water distribution data is obtained based on quantitative precipitation estimation data. The duration date of each field flood can be determined in combination with the daily flood area data simulated by the hydrologic model.

Inventors

JIANG HAO
HUANG JIANXI
ZHOU XIA
ZHANG JING
Kumengjun
WEI JIAYI

Assignees

广东省科学院广州地理研究所

Dates

Publication Date: 20260508
Application Date: 20250514

Claims (8)

1. The method for monitoring the continuous date of field flooding is characterized by comprising the following steps of: Acquiring quantitative precipitation estimation data of a target area and an optical remote sensing satellite image; acquiring quantitative precipitation estimation data of a sample and a synthetic aperture radar observation image of the target area according to the quantitative precipitation estimation data, wherein the quantitative precipitation estimation data of the sample is used as input, the synthetic aperture radar observation image of the sample is used as output, the sample is input into an image generation model for training and learning to obtain a trained image generation model; Performing daily flooding area simulation on the target area by using a hydrological model to obtain daily flooding area data of the target area; performing field identification on the optical remote sensing satellite image to obtain field distribution data; And obtaining the continuous date of field flooding according to the daily water distribution data, the daily flooding area data and the field distribution data.
2. The field flooding duration date monitoring method of claim 1, wherein: the daily flooding area data comprise a daily flooding depth and a daily flooding range; The step of performing daily flooding area simulation on the target area by using a hydrological model to obtain daily flooding area data of the target area comprises the following steps: Acquiring ground meteorological data, topographic data, river data, soil characteristic data, land utilization type data and field parameters of the target area; And inputting the ground meteorological data, the topographic data, the river channel data, the soil characteristic data, the land utilization type data and the field parameters into the hydrological model to obtain the daily flooding depth and the daily flooding range.
3. The field flooding duration date monitoring method of claim 1, wherein: the step of performing field identification on the optical remote sensing satellite image to obtain field distribution data comprises the following steps: Inputting the optical remote sensing satellite image into a trained field identification model to obtain field distribution data; wherein training the field identification model comprises: Performing field digitization and sample enhancement on the optical remote sensing satellite sample image to obtain a processed optical remote sensing satellite sample image; Outlining a field boundary on the processed optical remote sensing satellite sample image to obtain field sample distribution data; And taking the processed optical remote sensing satellite sample image as input, taking the field sample distribution data as output, and inputting the field sample distribution data into a transducer model for training and learning to obtain a trained field identification model.
4. A field flooding duration date monitoring method according to any one of claims 1 to 3, characterized in that: The step of obtaining a continuous date of field flooding according to the daily water distribution data, the daily flooding area data and the field distribution data comprises the following steps: Matching each field in the field distribution data with each water in the daily water distribution data, and determining the field as a target field when the field overlaps with the water in the position, or Position matching is carried out on each field block in the field block distribution data and each flooding area in the daily flooding area data, and when the field block overlaps with the flooding area in position, the field block is determined to be a target field block, wherein the target field block is a submerged field block; and counting continuous days of each field block in the target area in a preset time period as the target field block, and obtaining the continuous date of submerging each field block.
5. A field flooding duration date monitoring method according to any one of claims 1 to 3, characterized in that: before the step of obtaining daily water distribution data of the target area according to the quantitative precipitation estimation data, the method comprises the following steps: preprocessing the quantitative precipitation estimate data, including but not limited to radiation correction, atmospheric correction, and geometric correction.
6. A field flooding duration date monitoring device, comprising: The data acquisition module is used for acquiring quantitative precipitation estimation data of the target area and an optical remote sensing satellite image; The daily water body distribution data acquisition module is used for acquiring daily water body distribution data of the target area according to the quantitative precipitation estimation data, and comprises acquiring sample quantitative precipitation estimation data and a sample synthetic aperture radar observation image, taking the sample quantitative precipitation estimation data as input, taking the sample synthetic aperture radar observation image as output, inputting the sample synthetic aperture radar observation image into an image generation model for training and learning to acquire a trained image generation model, inputting the quantitative precipitation estimation data into the trained image generation model to acquire a daily synthetic aperture radar observation image, and carrying out polarization treatment on the daily synthetic aperture radar observation image to acquire daily water body distribution data of the target area; The daily flooding area data acquisition module is used for carrying out daily flooding area simulation on the target area by utilizing a hydrological model to acquire daily flooding area data of the target area; the field distribution data acquisition module is used for carrying out field identification on the optical remote sensing satellite image to acquire field distribution data; And the continuous date obtaining module is used for obtaining the continuous date of field flooding according to the daily water distribution data, the daily flooding area data and the field distribution data.
7. An electronic device comprising a processor and a memory, wherein the memory stores a computer program adapted to be loaded by the processor and to perform the steps of the field flooding duration date monitoring method of any of claims 1 to 5.
8. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the steps of the field flooding duration date monitoring method according to any one of claims 1 to 5.

Description

Method and device for monitoring continuous date of field flooding, electronic equipment and storage medium Technical Field The present application relates to the field of geographic monitoring technologies, and in particular, to a method and apparatus for monitoring a continuous date of field flooding, an electronic device, and a storage medium. Background In recent years, as climate change increases, extreme weather occurs more frequently. Taking the southern mountain area in China as an example, crops are affected by disasters such as typhoons, extreme rainfall, torrential flood and the like, and are submerged and soaked by water, and when the days are reached, the conditions such as large-area yield reduction and the like are easy to occur. The continuous date of farmland inundation is monitored through a satellite remote sensing technology, and the information of disaster-stricken distribution and disaster-stricken degree of crops can be provided timely, and can be used for formulating disaster prevention and reduction strategies for related government departments, so that the method has important significance. However, the existing remote sensing data replay period is up to 5-12 days, and when disasters occur, weather is cloudy and rainy, and effective observation data are difficult to obtain, so that continuous date of farmland inundation is difficult to monitor, and great difficulty is brought to crop remote sensing monitoring and disaster assessment. Disclosure of Invention Based on this, an object of the present application is to provide a field flooding duration date monitoring method, apparatus, electronic device, and storage medium, which can effectively monitor a field flooding duration date. According to a first aspect of an embodiment of the present application, there is provided a field flooding duration date monitoring method, including the steps of: Acquiring quantitative precipitation estimation data of a target area and an optical remote sensing satellite image; Acquiring daily water distribution data of a target area according to quantitative precipitation estimation data; performing daily flooding area simulation on the target area by using the hydrologic model to obtain daily flooding area data of the target area; Performing field identification on the optical remote sensing satellite image to obtain field distribution data; And obtaining the continuous date of field flooding according to the daily water distribution data, the daily flooding area data and the field distribution data. According to a second aspect of an embodiment of the present application, there is provided a field flooding duration date monitoring apparatus comprising: The data acquisition module is used for acquiring quantitative precipitation estimation data of the target area and an optical remote sensing satellite image; the daily water body distribution data acquisition module is used for acquiring daily water body distribution data of a target area according to quantitative precipitation estimation data; The daily flooded area data acquisition module is used for carrying out daily flooded area simulation on the target area by utilizing the hydrological model to acquire daily flooded area data of the target area; the field distribution data acquisition module is used for carrying out field identification on the optical remote sensing satellite image to acquire field distribution data; And the continuous date obtaining module is used for obtaining the continuous date of field flooding according to the daily water distribution data, the daily flooding area data and the field distribution data. According to a third aspect of embodiments of the present application there is provided an electronic device comprising a processor and a memory, wherein the memory stores a computer program adapted to be loaded by the processor and to perform the steps of the method as in the first aspect. According to a fourth aspect of embodiments of the present application, there is provided a computer readable storage medium storing a computer program which, when executed by a processor, performs the steps of the method as the first aspect. The method comprises the steps of obtaining quantitative precipitation estimation data and an optical remote sensing satellite image of a target area, obtaining daily water distribution data of the target area according to the quantitative precipitation estimation data, carrying out daily flooding area simulation on the target area by utilizing a hydrological model to obtain daily flooding area data of the target area, carrying out field identification on the optical remote sensing satellite image to obtain field distribution data, and obtaining continuous date of field flooding according to the daily water distribution data, the daily flooding area data and the field distribution data. The daily water distribution data is obtained based on quantitative precipitation estimation data. The duration da