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Volcanic eruptions and the increases in the stratospheric aerosol content: lidar measurements from 1982 to 1986
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Takeuchi, N. Sasano, Y. Hayashida, S. Shimizu, H. Sugimoto, N. Nakane, H. Matsui, I. Iikura, Y. |
| Copyright Year | 1986 |
| Description | The results of the observation for stratospheric aerosols which were carried out since the autumn of 1982 by using the NIES large lidar are described. Specifications of the lidar system are shown. The lidar has two wavelenghts of 1.06 and 0.53 micrometers. The 0.53 micrometer is mainly used for the stratospheric aerosols, because the PMT for 0.53 micrometers has higher sensitivity that that for 1.06 micrometers and the total efficiency is higher in the former. A switching circuit is used to control the PMT gain for avoiding signal induced noise in PMT. For the last four years, the stratospheric aerosol layer which was significantly perturbed by the El Chichon volcanic eruption was observed. The scattering ratio profiles observed from 1982 through 1983 are given. |
| File Size | 158946 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870000905 |
| Archival Resource Key | ark:/13960/t24b7zj7t |
| Language | English |
| Publisher Date | 1986-08-01 |
| Access Restriction | Open |
| Subject Keyword | Geophysics Atmospheric Circulation Backscattering Atmospheric Stratification Scattering Coefficients Aerosols Stratosphere Volcanoes Optical Radar Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
