2 results about "Diurnal temperature variation" patented technology

The invention discloses an hour-by-hour air temperature objective correction method based on a high-resolution numerical mode, and the method comprises the steps: collecting monitoring station data of a preset region, and carrying out the preprocessing of the monitoring station data; performing temperature daily change rule and mode deviation characteristic analysis according to the monitoring station data to obtain temperature daily change characteristics, constructing a multi-mode integration scheme based on dynamic weight, and averagely fusing the multi-mode integration scheme by adopting a Bayesian model to obtain an integration forecast; performing product detection evaluation on the integrated forecast according to the temperature daily change characteristics to obtain temperature evaluation, constructing an optimal similar set correction localization parameter according to the temperature evaluation and mode physical quantity correlation analysis, and establishing an optimal similar set correction method; sliding error regression correction is adopted for predicting and recorrecting the hour-by-hour temperature in the adjacent time period of the optimal similar set correction method, hour-by-hour temperature objective correction data are obtained, and a correction result is output.

An experimental method for low-high temperature hatching stimulation and dual-high temperature tolerance threshold determination for schizothoracine fish eggs in high diurnal temperature variation waters includes: step 1, determining daily extreme water temperatures and a daily water temperature variation during natural incubation of the schizothoracine fish eggs; step 2, implementing an incubation water temperature with the daily water temperature variation; step 3, determining a key hatching water temperature; step 4, inducing mass hatching of the schizothoracine embryos; and step 5, determining temperature tolerance thresholds. Through indoor water temperature gradient experiments on the schizothoracine fish eggs, a hatching mechanism under low-high temperature stimulation for fertilized eggs of Schizopygopsis microcephalus in Yangtze River source, and dual-high temperature tolerance ranges and thresholds. This provides scientific support for the protection and restoration of fishery resources in the Yangtze River source under the background of global warming.