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Number of items: 25.

Suresh Kumar Reddy, B. ; Raghavendra Kumar, K. ; Balakrishnaiah, G. ; Rama Gopal, K. ; Reddy, R. R. ; Nazeer Ahammed, Y. ; Narasimhulu, K. ; Siva Sankara Reddy, L. ; Lal, Shyam (2010) Observational studies on the variations in surface ozone concentration at Anantapur in southern India Atmospheric Research, 98 (1). pp. 125-139. ISSN 0169-8095

Sheel, Varun ; Lal, Shyam ; Richter, Andreas ; Burrows, John P. (2010) Comparison of satellite observed tropospheric NO2 over India with model simulations Atmospheric Environment, 44 (27). pp. 3314-3321. ISSN 1352-2310

Sahu, Lokesh K. ; Lal, Shyam ; Thouret, Valerie ; Smit, Herman G. (2010) Seasonality of tropospheric ozone and water vapor over Delhi, India: a study based on MOZAIC measurement data Journal of Atmospheric Chemistry, 62 (2). pp. 151-174. ISSN 0167-7764

Lal, S. ; Sahu, L. K. ; Gupta, S. ; Srivastava, S. ; Modh, K. S. ; Venkataramani, S. ; Rajesh, T. A. (2009) Emission characteristic of ozone related trace gases at a semi-urban site in the Indo-Gangetic plain using inter-correlations Journal of Atmospheric Chemistry, 60 (3). pp. 189-204. ISSN 0167-7764

Tripathi, S. N. ; Dey, Sagnik ; Tare, Vinod ; Satheesh, S. K. ; Lal, Shyam ; Venkataramani, S. (2005) Enhanced layer of black carbon in a north Indian industrial city Geophysical Research Letters, 32 (12). K12802_1-L12802_4. ISSN 0094-8276

Sheel, Varun ; Lal, Shyam ; Bruhl, Christoph (2005) Validation of a 2D model using observed profiles of SF6 with main focus on the tropics Atmospheric Environment, 39 (7). pp. 1255-1261. ISSN 1352-2310

Chand, Duli ; Lal, Shyam ; Naja, Manish (2003) Variations of ozone in the marine boundary layer over the Arabian Sea and the Indian Ocean during the 1998 and 1999 INDOEX campaigns Journal of Geophysical Research: Atmospheres, 108 (D6). ACH9_1-ACH9_13. ISSN 0148-0227

Chand, Duli ; Modh, K. S. ; Naja, M. ; Venkataramani, S. ; Lal, Shyam (2001) Latitudinal trends in O3, CO, CH4 and SF6 over the Indian Ocean during the INDOEX IFP-1999 ship cruise Current Science, 80 . pp. 100-104. ISSN 0011-3891

Lal, Shyam ; Lawrence, Mark G. (2001) Elevated mixing ratios of surface ozone over the Arabian Sea Geophysical Research Letters, 28 (8). pp. 1487-1490. ISSN 0094-8276

Lal, Shyam ; Sheel, Varun (2000) A study of the atmospheric photochemical loss of N2O based on trace gas measurements Chemosphere - Global Change Science, 2 (3-4). pp. 455-463. ISSN 1465-9972

Patra, Prabir K. ; Lal, Shyam ; Sheel, Varun ; Subbaraya, B. H. ; Bruhl, Christoph ; Borchers, Reinhard ; Fabian, Peter (2000) Chlorine partitioning in the stratosphere based on in situ measurements Tellus B: Chemical and Physical Meteorology, 52 (3). pp. 934-946. ISSN 0280-6509

Lal, Shyam ; Naja, Manish ; Subbaraya, B. H. (2000) Seasonal variations in surface ozone and its precursors over an urban site in India Atmospheric Environment, 34 (17). pp. 2713-2724. ISSN 1352-2310

Patra, Prabir K. ; Lal, Shyam ; Venkataramani, S. ; de Sousa, S. N. ; Sarma, V. V. S. S. ; Sardesai, S. (1999) Seasonal and spatial variability in N2O distribution in the Arabian Sea Deep Sea Research Part I: Oceanographic Research Papers, 46 (3). pp. 529-543. ISSN 0967-0637

Patra, Prabir K. ; Lal, Shyam ; Venkataramani, S. ; Gauns, Mangesh ; Sarma , V. V. S. S. (1998) Seasonal variability in distribution and fluxes of methane in the Arabian Sea Journal of Geophysical Research Oceans, 103 (C1). pp. 1167-1176. ISSN 0148-0227

Lal, Shyam ; Patra, Prabir K. (1998) Variabilities in the fluxes and annual emissions of nitrous oxide from the Arabian Sea Global Biogeochemical Cycles, 12 (2). pp. 321-327. ISSN 0886-6236

Patra, Prabir K. ; Lal, Shyam (1997) Variability of eddy diffusivity in the stratosphere deduced from vertical distributions of N2O and CFC-12 Journal of Atmospheric and Solar-Terrestrial Physics, 59 (10). pp. 1149-1157. ISSN 1364-6826

Patra, Prabir K. ; Lal, Shyam ; Subbaraya, B. H. ; Jackman, Charles H. ; Rajaratnam, P. (1997) Observed vertical profile of sulphur hexafiuoride (SF6) and its atmospheric applications Journal of Geophysical Research: Atmospheres, 102 (D7). pp. 8855-8859. ISSN 0148-0227

Naja, Manish ; Lal, Shyam (1996) Changes in surface ozone amount and its diurnal and seasonal patterns, from 1954-55 to 1991-93, measured at Ahmedabad (23 N), India Geophysical Research Letters, 23 (1). pp. 81-84. ISSN 0094-8276

Lal, Shyam ; Borchers, R. ; Fabian, P. ; Patra, P. K. ; Subbaraya, B. H. (1994) Vertical distribution of methyl bromide over Hyderabad, India Tellus B: Chemical and Physical Meteorology, 46 (5). pp. 373-377. ISSN 0280-6509

Lal, Shyam ; Venkataramani, S. ; Subbaraya, B. H. (1993) Methane flux measurements from paddy fields in the tropical Indian region Atmospheric Environment. Part A. General Topics, 27 (11). pp. 1691-1694. ISSN 0960-1686

Lal, Shyam ; Borchers, R. ; Fabian, P. ; Krueger, B. C. (1989) The vertical distribution of CH4, N2O, CFC-12 and CFC-11 in the middle atmosphere at mid-latitudes Journal of Atmospheric and Terrestrial Physics, 51 (2). pp. 81-90. ISSN 0021-9169

Torkar, K. M. ; Beran, D. ; Friedrich, M. ; Lal, Shyam (1985) Measurement of nitric oxide and related parameters in the equatorial mesosphere and lower thermosphere Planetary and Space Science, 33 (10). pp. 1169-1178. ISSN 0032-0633

Subbaraya, B. H. ; Lal, Shyam (1983) Daytime mesospheric temperatures over the low-latitude station Thumba derived from rocket-borne solar Lyman-α absorption measurements Journal of Atmospheric and Terrestrial Physics, 45 (1). pp. 41-45. ISSN 0021-9169

Subbaraya, B. H. ; Lal, Shyam (1981) Rocket measurements of ozone concentrations in the stratosphere and mesosphere over Thumba Proceedings of the Indian Academy of Sciences - Earth and Planetary Sciences, 90 (2). pp. 173-187. ISSN 0253-4126

Subbaraya, B. H. ; Lal, Shyam (1980) The structure of the equatorial mesosphere at Thumba Pure and Applied Geophysics, 118 (1). pp. 581-590. ISSN 0033-4553

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