Columnar Aerosol Extinction Characteristics: Measurements from a Free-Tropospheric Observatory in Western-Himalayas

  • Mukunda M Gogoi Space Physics Laboratory, Vikram Sarabhai Space Centre, Trivandrum
  • Jai Prakash Chaubey Space Physics Laboratory, Vikram Sarabhai Space Centre, Trivandrum
  • V Sreekanth Space Physics Laboratory, Vikram Sarabhai Space Centre, Trivandrum
  • Sobhan Kumar Kompalli Space Physics Laboratory, Vikram Sarabhai Space Centre, Trivandrum
  • S Suresh Babu Space Physics Laboratory, Vikram Sarabhai Space Centre, Trivandrum
  • Tushar P Prabhu Indian Institute of Astrophysics, Bangalore
  • K Krishna Moorthy Space Physics Laboratory, Vikram Sarabhai Space Centre, Trivandrum
Keywords: Columnar Aerosol Extinction Characteristics, Measurements, Free-Tropospheric Observatory, Western-Himalayas

Abstract

Continuous measurements of spectral aerosol optical depths (AOD) were made over a very high altitude aerosol observatory at Hanle (32.76°N, 78.95°E, 4520 m amsl), during the summer and autumn of 2009 and 2010, by using a 10-channel multi-wavelength radiometer (MWR). The results depicted very low values of AOD (with a mean for the measurement period as ~ 0.071 ± 0.003 at 500 nm), but with a spectral dependence that changed with the months from ~ 0.8 to 1.3, with a mean value of ~ 1.01 ± 0.06. The AODs though were in general comparable to those seen over pristine Antarctic environments, are quite significant when we consider the altitude of the station. The details are presented.

DOI: http://dx.doi.org/10.3126/jie.v8i3.5931

JIE 2011; 8(3): 52-57

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How to Cite
Gogoi, M., Chaubey, J., Sreekanth, V., Kompalli, S., Babu, S., Prabhu, T., & Moorthy, K. (1). Columnar Aerosol Extinction Characteristics: Measurements from a Free-Tropospheric Observatory in Western-Himalayas. Journal of the Institute of Engineering, 8(3), 52-57. https://doi.org/10.3126/jie.v8i3.5931
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