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| Titel |
Study of Atmospheric Forcing and Responses (SAFAR) campaign: overview |
| VerfasserIn |
A. Jayaraman, M. Venkat Ratnam, A. K. Patra, T. Narayana Rao, S. Sridharan, M. Rajeevan, H. Gadhavi, A. P. Kesarkar, P. Srinivasulu, K. Raghunath |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 28, no. 1 ; Nr. 28, no. 1 (2010-01-18), S.89-101 |
| Datensatznummer |
250016745
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| Publikation (Nr.) |
 copernicus.org/angeo-28-89-2010.pdf |
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| Zusammenfassung |
| Study of Atmospheric Forcing and Responses (SAFAR) is a
five year (2009–2014) research programme specifically to address the
responses of the earth's atmosphere to both natural and anthropogenic
forcings using a host of collocated instruments operational at the National
Atmospheric Research Laboratory, Gadanki (13.5° N, 79.2° E), India
from a unified viewpoint of studying the vertical coupling between the
forcings and responses from surface layer to the ionosphere. As a prelude to
the main program a pilot campaign was conducted at Gadanki during
May–November 2008 using collocated observations from the MST radar, Rayleigh
lidar, GPS balloonsonde, and instruments measuring aerosol, radiation and
precipitation, and supporting satellite data. We show the importance of the
large radiative heating caused by absorption of solar radiation by soot
particles in the lower atmosphere, the observed high vertical winds in the
convective updrafts extending up to tropopause, and the difficulty in
simulating the same with existing models, the upward traveling waves in the
middle atmosphere coupling the lower atmosphere with the upper atmosphere,
their manifestation in the mesospheric temperature structure and inversion
layers, the mesopause height extending up to 100 km, and the
electro-dynamical coupling between mesosphere and the ionosphere which
causes irregularities in the ionospheric F-region. The purpose of this
communication is not only to share the knowledge that we gained from the
SAFAR pilot campaign, but also to inform the international atmospheric
science community about the SAFAR program as well as to extend our
invitation to join in our journey. |
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