Applications of radiocarbon (¹⁴C) in earth sciences (global carbon cycle, oceanography, palaeoclimate) and archaeology
Biogeochemistry of permafrost ecosystems
Multi-decadal climate variability in the tropics
¹⁰Be in oceans

EDUCATION

Physical Research Laboratory, Ahmedabad, India, Ph.D.
Indian Institute of Technology, Kharagpur, India, M.Sc. (Applied Geology)
Banaras Hindu University, Varanasi, B.Sc. (Honors in Geology)

SELECTED PUBLICATIONS

Dutta K, Schuur EAG, Neff JC, Zimov SE (2006) Potential carbon release from permafrost soils of Northeastern Siberia. Global Change Biology, 12(12), 2336-2351, doi:10.1111/j.1365-2486.2006.01259.x.

Dutta K, Bhushan R, Somayajulu BLK, Rastogi N (2006) Interannual variation in atmospheric Δ¹⁴C over the Northern Indian Ocean. Atmospheric Environment, 40, 4501-4512, doi:10.1016/j.atmosenv.2006.04.013.

Dutta K (2002) Coherence of tropospheric ¹⁴CO₂ with El Niño/Southern Oscillation. Geophysical Research Letters, 29(20), 48(1-4), doi:10.1029/2002GL014753

Agnihotri R, Dutta K, Bhushan R, Somayajulu BLK (2002) Evidence for solar forcing of the southwest monsoon during the last millennium. Earth and Planetary Science Letters, 198, 521-527, doi:10.1016/S0012-821X(02)00530-7.

Dutta K, Bhushan R, Somayajulu BLK (2001) Δ-R correction values for the Northern Indian Ocean. Radiocarbon, 43(2a), 483-488.

OTHER PUBLICATIONS

Dutta K (2008) Marine ¹⁴C reservoir ages and Suess effect in the Indian Ocean. Earth Science India, 1(IV), 243-257.

Chakraborty S, Dutta K, Bhattacharyya A, Nigam M, Schuur EAG, Shah SK. Atmospheric ¹⁴C variability recorded in tree rings from peninsular India: Implications for fossil fuel CO₂ emission and atmospheric transport. Radiocarbon (in press).

Bhushan R, Dutta K, Somayajulu BLK (2008) Estimates of upwelling rates in the Arabian Sea and the equatorial Indian Ocean based on bomb radiocarbon. Journal of Environmental Radioactivity, 99, 1566-1571, doi:10.1016/j.jenvrad.2007.12.006.

Ravi Prasad GV, Dutta K, Ray DK (2008) Radiocarbon AMS at IOP: system improvements and dating of groundwater from Bhadrak district, Orissa. Nuclear Instruments and Methods in Physics Research B, 266(8), 1833-1836, doi:10.1016/j.nimb.2007.11.060.

Dutta K, Bhushan R, Somayajulu BLK (2007) Rapid vertical mixing rates in deep waters of the Andaman Basin. Science of Total Environment, 384(1-3), 401-408, doi:10.1016/j.scitotenv.2007.04.041.

Zimov SA, Davydov SP, Zimova GM, Davydova AI, Schuur EAG, Dutta K, Chapin III FS (2006) Permafrost carbon: Stock and decomposability of a globally significant carbon pool. Geophysical Research Letters, 33, L20502, doi:10.1029/2006GL027484.

Kane ES, Valentine DW, Schuur EAG, Dutta K (2005) Soil carbon stabilization along climate and stand productivity gradients in black spruce forests of interior Alaska. Canadian Journal of Forest Research, 35, 2118-2129.

Mahapatra DP, Behera AK, Gopalan K, Chakraborty S, Dutta K, Somayajulu BLK (2004) AMS at the Institute of Physics, Bhubaneswar. Nuclear Instruments and Methods in Physics Research B, 223-224, 26-30, doi:10.1016/j.nimb.2004.04.009.

Bhushan R, Dutta K, Mulsow S, Povinec PP, Somayajulu BLK (2003) Distribution of natural and man-made radionuclides during reoccupation of GEOSECS stations 413 and 416 in the Arabian Sea: Temporal changes. Deep Sea Research-II, 50, 2777-2784, doi:10.1016/S0967-0645(03)00147-4.

Agnihotri R, Dutta K (2003) Centennial scale variations in monsoonal rainfall (Indian, east equatorial and Chinese monsoons): Manifestations of solar variability. Current Science, 85, 459-463.

Bhushan R, Dutta K, Somayajulu BLK (2001) Concentrations and burial fluxes of organic and inorganic carbon on the eastern margins of the Arabian Sea. Marine Geology, 178, 95-113, doi:10.1016/S0025-3227(01)00179-7.