4 results about "Diurnal temperature variation" patented technology

The present invention belongs to the field of climate and environmental monitoring technology and specifically provides a method and system for the simultaneous simulation and inversion of land surface temperature and land surface emissivity. The method comprises: simulating and generating global thermal infrared channel brightness temperature data based on observational parameters of thermal infrared channels from different geostationary meteorological satellites using the thermal infrared radiation transfer equation; adding random Gaussian noise to the brightness temperature data, using this as the observed brightness temperature, and performing simultaneous inversion of land surface temperature and emissivity. By combining observational data from geostationary meteorological satellites from different countries around the world and leveraging the multispectral and high-frequency observational characteristics of the new generation of geostationary meteorological satellites, a physical algorithm for simultaneous inversion of land surface temperature (LST) and land surface emissivity (LSE) is developed. This allows for simultaneous simulation and inversion of LST / LSE on a global scale, providing a reference for quantitative inversion of LST / LSE at high temporal and spatial resolutions worldwide. Satellite observations confirm that underlying surfaces with large diurnal temperature variations, such as deserts, are more conducive to the separation of land surface temperature and emissivity.

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.

The invention relates to the technical field of thermoelectric chemical temperature difference power generation, in particular to a power generation method and system using day and night temperature and humidity difference, and aims to solve the problems that a conventional power generation device needs heat storage and is low in efficiency when generating power under the condition of day and night temperature difference. The TREC module is an electrochemical battery for generating electricity by utilizing temperature difference and performs heat conversion in day and night temperature change, an electrolyte cavity is formed in the inner side of the TREC module, the electrolyte cavity is filled with electrolyte, and when an ion exchange membrane exists in the structure of the TREC module, the electrolyte cavity is divided into a positive electrode and a negative electrode. The TREC module is arranged in the all-weather natural environment, the ion activity is regulated and controlled through the day and night temperature and humidity difference so as to change the potential, efficient heat-to-electricity conversion is achieved, the natural condition advantages are fully explored, and the application prospect in the field of renewable energy source utilization is wide.

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.