signatures of rossby wave modulations in aerosol optical depth over the central himalayan region

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ID: 158099
2014
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Abstract
Long-period modulations are shown in aerosol optical depth measured by the Microtops II Sun photometer over a high-altitude site the central Himalayan region (Nainital, 29.4° N, 79.5° E, 1958 m a.m.s.l.) for the first time. Fourier analysis of aerosol optical depth showed dominant 25–45 day oscillations observed in MODerate-resolution Imaging Spectro radiometer data. Further, a Hovmiller diagram showed westward (northward) propagation at a different longitude (latitude), confirming that the modulations are associated with Rossby waves. It is also shown that the Rossby wave amplitude causes an additional warming of 4.16 ± 0.98 W m−2 over the observational site. Hence, the present study illustrates the importance of wave-induced aerosol dynamics and the corresponding radiative effects.
Reference Key
phanikumar2014annalessignatures Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;D. V. Phanikumar;K. Niranjan Kumar;K. K. Shukla;K. K. Shukla;H. Joshi;M. Venkat Ratnam;M. Naja;K. Reddy
Journal journal of food measurement and characterization
Year 2014
DOI
10.5194/angeo-32-175-2014
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