Abstract: A high-precision waterway reconstruction method based on a multi-satellite source information coupling is provided. The method includes a determination method for a waterway section, a reconstruction method for a basic waterway section high-precision coupling, a reconstruction method for a fixed waterway section coupling, and a reconstruction method for a river reach waterway terrain. The method fills the gap of surveying and mapping of the waterways based on satellite remote sensing information, extremely improves the perpendicular precision and planar precision of the existing digital surface model of satellites for river waterways, and provides decision support for a water-related emergency rescue in areas lacking data.
Type:
Application
Filed:
July 30, 2021
Publication date:
July 13, 2023
Applicant:
BUREAU OF HYDROLOGY, CHANGJIANG WATER RESOURCES COMMISSION
Abstract: A method for continuous measurement of river flow based on satellite big data is provided. The method includes: determining a river reach to conduct flow measurement, reconstructing a cross section of a river channel based on satellite big data, calculating real-time water levels by coupling data of various types of satellites, and performing flow calculation and compilation. The method solves the difficult problem of river flow measurement or continuous measurement of river flow in uninhabited areas, fills the blank of satellite-based flow measurement according to the principle of river dynamics, and greatly expands the range of river flow measurement.
Type:
Grant
Filed:
April 6, 2022
Date of Patent:
January 31, 2023
Assignee:
BUREAU OF HYDROLOGY, CHANGJIANG WATER RESOURCES COMMISSION
Abstract: A method for continuous measurement of river flow based on satellite big data is provided. The method includes: determining a river reach to conduct flow measurement, reconstructing a cross section of a river channel based on satellite big data, calculating real-time water levels by coupling data of various types of satellites, and performing flow calculation and compilation. The method solves the difficult problem of river flow measurement or continuous measurement of river flow in uninhabited areas, fills the blank of satellite-based flow measurement according to the principle of river dynamics, and greatly expands the range of river flow measurement.
Type:
Application
Filed:
April 6, 2022
Publication date:
October 6, 2022
Applicant:
BUREAU OF HYDROLOGY, CHANGJIANG WATER RESOURCES COMMISSION