Abstract: A method for simulating a development date based on a response mechanism and an adaptation mechanism of a crop to an environment, including: collecting crop phenology data observed at a research station; obtaining a day of year of a start date, a quantity of days, and an average temperature, in the development phase, based on the crop phenology data; obtaining a development rate based on the quantity of days in the development phase, where the development rate is a reciprocal of the quantity of days in the development phase; calculating a product of the average temperature and the day of year of the start date of the development phase; and obtaining a regression equation as an equation simulating the development date, through a linear regression algorithm, where the development rate serves as a dependent variable, and the average temperature and the product serve as regressors.

Abstract: A total-sky lightning event observation system and method may include a photographing device, a housing, a temperature control device, a light shielding device, a control module, a power supply module, a corona current sensor, a data acquisition device, a GPS antenna, a GPS timing module and a processing unit. The photographing device can capture total-sky digital images and transmit the images directly to the processing unit. The processing unit consecutively acquire corona current via the data acquisition device and judges whether there exists thunderstorm activity within the observed range; if there exists thunderstorm activity, the light shielding device is opened so as to enter a lightning observation mode, and the light shielding device is closed after the observation is finished so as to protect the photographing device in non-thunderstorm weather.

Abstract: A total-sky lightning event observation system and method may include a photographing device, a housing, a temperature control device, a light shielding device, a control module, a power supply module, a corona current sensor, a data acquisition device, a GPS antenna, a GPS timing module and a processing unit. The photographing device can capture total-sky digital images and transmit the images directly to the processing unit. The processing unit consecutively acquire corona current via the data acquisition device and judges whether there exists thunderstorm activity within the observed range; if there exists thunderstorm activity, the light shielding device is opened so as to enter a lightning observation mode, and the light shielding device is closed after the observation is finished so as to protect the photographing device in non-thunderstorm weather.