Copyright © 2012 Nandita D. Ganguly. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

(1) “The PV value was >1.6 and RH at the tropopause were low (20%), indicating the presence of air masses having stratospheric origin,” in page 3, column 2, 4th last line, should be changed to “The PV value at the tropopause was >1.6 and RH at 300 hPa pressure level was low (20%), indicating the presence of air masses having stratospheric origin.”

(2) In pages 4-5 in Figures 4(a)–4(i), (a, b, c, d, e, f, g, h, and i) mentioned inside the figures have been removed.

Figure 4: (a) Geopotential height (meter) map at 850 hPa, (b) vertical pressure velocity () at the tropopause, (c) relative humidity (%) at 300 hPa pressure level, (d) potential vorticity at the tropopause, (e) 5-day back trajectories at 1000 hPa (pink), 925 hPa (red), and 850 hPa (green) pressure levels, (f) tropospheric CO ( ppmv), (g) CH₄ (ppmv), (h) NO₂ (10¹⁵  ), and (i) fire counts at Pune on 24 November 2006 (sources of data: NCEP Reanalysis, ECMWF, TES, OMI, and ASTR World Fire Atlas).