| Autor: |
Mitra, A. P., Somayajulu, Y. V., Singal, S. P., Majumdar, S. C., Tyagi, T. R., Reddy, B. M., Agarwal, S. K., Gera, B. S., Ghosh, A. B., Sarkar, S. K. |
| Zdroj: |
Boundary-Layer Meteorology; January 1977, Vol. 11 Issue: 1 p103-116, 14p |
| Abstrakt: |
A number of troposphere-monitoring experiments were pressed into service during a large tropospheric disturbance which lasted for several days in December 1974. The experiments operated intensively included a monostatic Sodar system, a satellite radio beacon receiver at very low elevation angles, Meteorological Radiosondes, a 250-kW weather radar, a microwave LOS link and a microbarograph. This multi-pronged campaign yielded very useful results and the correspondences between various observations were striking. The Sodar and microwave link observations were visibly affected only when dN reached a value of about -70 units; however, the satellite beacon observations showed anomalous behaviour even for lower dN values. Rather spectacular coincidences occurred on one night: the large fading (up to 10 db) in the LOS link; highly disturbed conditions displayed in the entire Sodar range; the largest tropospheric effect on the satellite beacon system; and the most active superrefraction of the radar echoes. It was also noticed that these effects are obvious only during nights, while they remain masked or dampened in the sun-lit hours. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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