Natural river ecological flow monitoring method based on observation tower remote sensing

The invention discloses a natural river ecological flow monitoring method based on observation tower remote sensing. The method comprises the steps that tower footing video sensor equipment is erected; detecting an intelligent imaging and data transmission sensor system and obtaining related parameters; unmanned aerial vehicle river section measurement; measuring the underwater topography of the river section; constructing a three-dimensional digital river channel model and generating an ecological flow calculation method; batch extraction of tower footing video remote sensing water surface width; and calculating and visualizing the ecological flow. The invention constructs a remote sensing intelligent detection method suitable for obtaining the ecological flow of the high-frequency natural river. The time frequency of existing remote sensing ecological flow monitoring is obviously improved, and rapid data acquisition, data transmission and data visualization based on an ecological flow target are realized; t