Back to Search
Start Over
南极中山站瑞利散射激光雷达的初步探测结果
- Source :
- Infrared and Laser Engineering. 50:20210010
- Publication Year :
- 2021
- Publisher :
- Shanghai Institute of Optics and Fine Mechanics, 2021.
-
Abstract
- A Rayleigh scattering lidar for measuring the atmospheric density and temperature has been deployed at Zhongshan Station (69.4° S, 76.4° E), Antarctica. Lidar transmitter was a frequency doubled Nd:YAG laser with ~400 mJ pulse energy and 30 Hz repetition rate. A telescope with 0.8 m diameter pointing to the zenith direction served as the lidar receiver. This lidar was capable of profiling the density and temperature in the Upper Stratosphere and Lower Mesosphere (USLM) region. At the vertical resolution of 300 m and the temporal resolution of 30 min, the lidar measurement uncertainties, mainly due to the photon noise, were calculated to be within 1.5% and 1 K for density and temperature, respectively. Since March 2020, this lidar has been routinely operated at Zhongshan station for exploring the atmospheric density and temperature variations and wave propagation characteristics in the polar USLM region.
- Subjects :
- Aerospace Engineering
Laser
Atomic and Molecular Physics, and Optics
law.invention
Mesosphere
Telescope
symbols.namesake
Lidar
Space and Planetary Science
law
Temporal resolution
symbols
Environmental science
Electrical and Electronic Engineering
Rayleigh scattering
Stratosphere
Zenith
Remote sensing
Subjects
Details
- ISSN :
- 10072276
- Volume :
- 50
- Database :
- OpenAIRE
- Journal :
- Infrared and Laser Engineering
- Accession number :
- edsair.doi...........87d070ec7d17f042313b9842af3e13da