River ecological flow monitoring method based on remote sensing technology

Abstract

The invention discloses a river ecological flow monitoring method based on the remote sensing technology. The method comprises the steps: correcting historical hydrological data based on a constructedwater surface width hydraulic model, drawing a relation curve of the historical hydrological data and the water surface width measured by remote sensing according to the corrected historical hydrological data and the data measured by remote sensing, and acquiring the river ecological flow guarantee rate through calculation; meanwhile, combining the river bending coefficient obtained through calculation with the river ecological flow guarantee rate, and supervising and evaluating the reasonability of the river ecological flow of the target river channel. According to the method, the ecologicalflow of the whole river reach is supervised, the ecological flow of the river is rapidly supervised in a real-time non-contact manner, the cost is saved, and the supervision is safe and effective. Model construction is carried out based on historical hydrological data and remote sensing data, and the historical hydrological data is rapidly corrected, so the accuracy and operability of river ecological flow monitoring are improved.

Description

technical field [0001] The invention belongs to the technical field of ecological flow, and in particular relates to a monitoring method for river ecological flow based on remote sensing technology. Background technique [0002] Ecological flow is the most important condition for the restoration, maintenance and development of river ecological environment, and it is also one of the most effective ways to solve the damage of river ecosystem. The "2030 Agenda for Sustainable Development" adopted by the United Nations in 2015 regards ecological flow as one of the important measures to achieve the sustainable development goals. The existing ecological flow assessment methods are relatively mature, and many countries set ecological flow for rivers. Although countries have realized the importance of river ecological flow, a large number of ecological flow methods have been proposed, and ecological flow has been set for many rivers. However, people pay more attention to the econo...

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Problems solved by technology

[0004] The purpose of the present invention is to address the above-mentioned deficiencies in the prior art, to provide a river ecological flow monitoring method based on remote sensing technology, to solve the existing problems of inaccurate ecological flow monitoring, time-consuming and labor-intensive and insufficient safety, and difficult to operate

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