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3 results about "Mesosphere" patented technology
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The mesosphere (/ˈmɛsoʊsfɪər/; from Greek mesos, "middle") is the third major layer of the Earth's atmosphere, directly above the stratosphere and directly below the thermosphere. In the mesosphere, temperature decreases as altitude increases. This characteristic is used to define its limits: it begins at the top of the stratosphere (sometimes called the stratopause), and ends at the mesopause, which is the coldest part of Earth's atmosphere with temperatures below −143 °C (−225 °F; 130 K). The exact upper and lower boundaries of the mesosphere vary with latitude and with season (higher in winter and at the tropics, lower in summer and at the poles), but the lower boundary is usually located at altitudes from 50 to 65 kilometres (31 to 40 mi; 164,000 to 213,000 ft) above the Earth's surface and the upper boundary (the mesopause) is usually around 85 to 100 kilometres (53 to 62 mi; 279,000 to 328,000 ft).
Method for extracting multi-period characteristics of top temperature of intermediate layer and analyzing influencing factors
The application discloses a method for extracting middle layer top temperature multi-period characteristics and analyzing influencing factors, and belongs to the technical field of atmospheric detection and meteorological data analysis. The method first extracts time series data of the middle layer top temperature based on the 90km height and the lowest temperature point standard, then completes time domain trend and mutation analysis through seasonal departure and Mann-Kendall test, adopts discrete wavelet decomposition to obtain four main oscillation periods of 3 years, 7 years, 11 years and 22 years, then uses continuous wavelet to obtain the length of the fine-calibrated period, and finally performs cross wavelet analysis on the quasi-biennial oscillation, the El Nino effect and the solar activity index to obtain the final correlation and time lag results. The application realizes joint time-frequency domain analysis of discrete wavelet transform, continuous wavelet transform and cross wavelet transform, effectively improves the cycle recognition accuracy, quantifies the multi-scale correlation and time sequence hysteresis of each factor, and provides a new research idea for high-altitude atmospheric climate influencing factor analysis.
Owner:ANHUI UNIV OF SCI & TECH
Method for analyzing long-term response of Antarctic stratosphere ozone to high-energy particle sedimentation
The invention discloses a method for analyzing long-term response of ozone in the Antarctic stratosphere to high-energy particle sedimentation, which comprises the following specific steps: firstly, acquiring vertical distribution characteristics of ozone from the Antarctic stratosphere to the middle layer from January to December in 30 years, and drawing a historical vertical distribution diagram; compiling a special method technical scheme for analyzing the long-term response of the ozone in the Antarctic stratosphere to the sedimentation of the high-energy particles, and carrying out technical disclosure to workers; then, the geomagnetic index is adopted as an agent index of high-energy particle sedimentation, a unary linear regression model of the southern hemisphere winter atmospheric variable is established, and the regression model is shown in the specification. The process that high-energy particles are settled and generated and conveyed to the stratosphere through polar region vortex and the ozone loss chemical process of the high-energy particles can be quantitatively analyzed, and the potential influence of extreme space weather events on an earth climate system can be conveniently evaluated.
Owner:NAT UNIV OF DEFENSE TECH