The invention discloses a method and
system for calculating the influence intensity of high-temperature heat
waves on dissolved
oxygen in lakes, and belongs to the field of hydro
meteorology and
ecological environment. Comprising the following steps: integrating to obtain synchronous sample point pairs, and establishing a dissolved
oxygen estimation model; calculating a climatic state 90% quantile temperature based on the reanalysis data, creating an
air temperature and heat wave event identification condition, and identifying an
air temperature and heat wave event by using the
air temperature and heat wave event identification condition; acquiring an actual observation temperature in the
occurrence time of the air temperature and heat wave event and a climate state average temperature in a corresponding reference year; the dissolved
oxygen estimation model is used for calculating the dissolved oxygen concentration at the heat wave temperature and the dissolved oxygen concentration at the average temperature of the climate state, and the influence intensity of the high-temperature heat
waves on the dissolved oxygen of the lake is obtained according to analysis of the dissolved oxygen concentration at the average temperature of the climate state and the dissolved oxygen concentration at the heat wave temperature. According to the method, various climate,
water quality and geographical factors are comprehensively considered, and the comprehensive influence intensity of the high-temperature heat
waves on the dissolved oxygen concentration of the
water body is analyzed and evaluated through a systematic model.