Arvind Singh E-mail: arvinds@prl.res.in Telephone: +91-79-2631 4366

Research Interests

·        Marine Nitrogen Cycle

·        Ocean Biogeochemistry

·        Marine C:N:P Stoichiometry

·        Anthropogenic Impacts on Marine Nitrogen Cycling

·        Climate Change

·        Isotopic Fractionation Processes

 

Professional Affiliations

 

·        Reader (December 2015 - present) at PRL, Ahmedabad, India

·        Post-doctoral Fellow (May 2013 - December 2015) at GEOMAR, Kiel, Germany

·        Post-doctoral Fellow (September 2011 - April 2013) at University of Gothenburg, Sweden

·        NF-POGO Scholar (August 2011 - May 2012) at Bermuda Institute of Ocean Sciences (BIOS), Bermuda

·        Post-doctoral Fellow (February 2011 - August 2011) at PRL, Ahmedabad, India

·        POGO-SCOR Scholar (September 2009 - November 2009) at Max Plank Institute for Marine Microbiology (MPIMM), Bremen, Germany

·        Senior Research Fellow (August 2008 - January 2011) at PRL, Ahmedabad, India

·        Junior Research Fellow (July 2006 - July 2008) at PRL, Ahmedabad, India

·        Project Associate (January 2005 - June 2006) at PRL, Ahmedabad, India

 

Awards

·        Associate, Indian Academy of Sciences (IASc), Bengaluru (2017-2020)

·        INSPIRE faculty fellowship, DST India (2015-2020)

·        Alexander von Humboldt Researcher Alumni fellowship (January 2015)

·        DFG (Leibniz-Preis) Post-doctoral fellowship (May 2015 - April 2016)

·        Sonderforschungsbereich ‘(SFB-754)’ Post-doctoral fellowship (October 2014 - April 2015)

·        Cluster of Excellence ‘The Future Ocean’ Post-doctoral fellowship (May 2013 - October 2014)

·        Gothenburg University Post-doctoral fellowship (March 2013 - April 2013)

·        Swedish Institute Post-doctoral fellowship (September 2011 - February 2013)

·        NF-POGO Center of Excellence 2011 fellowship for participating in a ten months Observational Oceanography training programme at BIOS, Bermuda

·        POGO-SCOR fellowship (2009) to work at MPIMM, Bremen Germany during September-November 2009

 

Peer-Reviewed Journal Articles

1.     Saxena, H., D. Sahoo, M. A. Khan, S. Kumar, A. K. Sudheer, and A. Singh (2020), Dinitrogen Fixation Rates in the Bay of Bengal during Summer Monsoon, Environmental Research Communications, 2, 051007, doi:10.1088/2515-7620/ab89fa

2.     Tripathi, N., L. K. Sahu, A. Singh, R. Yadav, and K. K. Karati (2020), High levels of isoprene in the marine boundary layer of Arabian Sea during spring inter-monsoon: Role of phytoplankton blooms, ACS Earth and Space Chemistry, 4(4), 583-590, doi:10.1021/acsearthspacechem.

3.     Thajudeen, J., P. V. Vipindas, Y. Jesmi, V. Sudheesh, P. M. Parambath, A. Singh, and M. A. Hatha (2020), Nutrient stoichiometry (N:P) controls nitrogen fixation and distribution of diazotrophs in a tropical eutrophic estuary, Marine Pollution Bulletin, 15, 110799, doi:10.1016/j.marpolbul.2019.110799

4.     Singh, A., N. Gandhi, and R. Ramesh, (2019), Surplus supply of bioavailable nitrogen through N₂ fixation to primary producers in the eastern Arabian Sea during autumn, Continental Shelf Research, 181, 103–110

5.     Hermes, J. C., Y. Masumoto, L. Beal, …, A. Singh et al. (2019), A sustained ocean observing system in the Indian Ocean for climate related scientific knowledge and societal needs, Frontiers in Marine Science, 6:355.

6.     Suntharalingam, P., L. M. Zamora, H. W. Bange, S. Bikkina, E. Buitenhuis, M. Kanakidou, J. F. Lamarque, A. Landolfi, L. Resplandy, M.M. Sarin, S. Seitzinger, and A. Singh (2019), Anthropogenic nitrogen inputs and impacts on oceanic N₂O fluxes in the northern Indian Ocean: The need for an integrated observation and modelling approach, Deep Sea Research II, doi:10.1016/j.dsr2.2019.03.007

7.     Kumar, P. K., A. Singh, and R. Ramesh (2018), Controls on δ¹⁸O, δD and δ¹⁸O-salinity relationship in the northern Indian Ocean, Marine Chemistry, 207, 55-62, doi:10.1016/j.marchem.2018.10.010

8.     Kumar, S., P. S. Bhavya, R. Ramesh, G. V. M. Gupta, F. Chiriboga, A. Singh, I. Karunasagar, A. Rai, A. Rehnstam-Holm, L. Edler, and A. Godhe (2018), Nitrogen uptake potential under different temperature-salinity conditions: Implications for nitrogen cycling under climate change scenarios, Marine Environmental Research, doi:10.1016/j.marenvres.2018.09.001

9.     Singh, A., L. T. Bach, T. Fischer, H. Hauss, R. Kiko, A. J. Paul, P. Stange, P. Vandromme, and U. Riebesell (2017), Niche construction by non-diazotrophs for N₂ fixers in the eastern tropical North Atlantic Ocean, Geophysical Research Letters, 44, doi:10.1002/2017GL074218

10. Baker, A. R., M. Kanakidou, K. Altieri, N. Daskalakis, G. Okin, S. Myriokefalitakis, F. Dentener, M. Uematsu, M M. Sarin, R. Duce, J. Galloway, W. Keene, A. Singh, L. Zamora, J. Lamarque, S. Hsu, S. Rohekar, S., and J. Prospero (2017), Observation-and model-based estimates of particulate dry nitrogen deposition to the oceans, Atmospheric Chemistry and Physics, 17(13), 8189-8210, doi:10.5194/acp-17-8189-2017

11. Kumar, P. K., A. Singh, R. Ramesh and T. Nallathambi T (2017), N₂ Fixation in the Eastern Arabian Sea: Probable Role of Heterotrophic Diazotrophs. Front. Mar. Sci., 4:80. doi: 10.3389/fmars.2017.00080

12. Jickells. T., K. Altieri, E. Buitenhuis, A. Baker, D. Capone, R. Duce, F. Dentener, K. Fennel, M. Kanakidou, J. LaRoche, K. Lee, P. Liss, J. Middelburg, K. Moore, G. Okin, A. Oschlies, M. M. Sarin, S. Seitzinger, J. Sharples, A. Singh, P. Suntharalingam, M. Uematsu, and L. Zamora (2017), A reevaluation of the magnitude and impacts of anthropogenic atmospheric nitrogen inputs on the ocean, Global Biogeochemical Cycles, 31(2), 289-305

13. Thajudeen, J., J. Yousuf, V. P. Veetil, S. Varghese, A. Singh, and M. H. Abdulla (2017), Nitrogen fixing bacterial diversity in a tropical estuarine sediments, World Journal of Microbiology and Biotechnology, 33(2), 41

14. Olofsson, M., J. Egardt, A. Singh, and H. Ploug (2016), Inorganic phosphorus enrichments in Baltic Sea water have large effects on growth, carbon fixation, and N₂ fixation by Nodularia spumigena. Aquatic Microbial Ecology, 77(2), 111-123

15. Singh, A., Kürten, B., Cedras,  R., Fernandes, M., N. Kumar and 41 authors (2016), Perspectives on future Indian Ocean research from early career scientists, Current Science, 111 (11), 1741-1742

16.  Kahlon, G. K., S. Kumar, A. Rehnstam-Holm, A. Rai, P. S. Bhavya, L. Edler, A. Singh, B. Andersson, I. Karunasagar, R. Ramesh, and A. Godhe (2016), Response of a coastal tropical pelagic microbial community to changed salinity and temperature, Aquatic Microbial Ecology, 77(1), 37-50, doi:10.3354/ame01785

17. Singh, A., S. E. Baer, U. Riebesell, A. C. Martiny, and M. W. Lomas (2015), C:N:P stoichiometry at the Bermuda Atlantic Time-series Study station in the North Atlantic Ocean, Biogeosciences, 12, 6389-6403, doi:10.5194/bg-12-6389-2015

18. Löscher, C. R., M. A. Fischer, S. C. Neulinger, B. Fiedler, M. Philippi, F. Schütte, A. Singh, H. Hauss, J. Karstensen, A. Körtzinger, S. Künzel, and R. A. Schmitz (2015), Hidden biosphere in an oxygen-deficient Atlantic open-ocean eddy: future implications of ocean deoxygenation on primary production in the eastern tropical North Atlantic, Biogeosciences, 12, 7467-7482, doi:10.5194/bg-12-7467-2015

19. Singh, A., and R. Ramesh (2015), Environmental controls on New and Primary Production in the Northern Indian Ocean, Progress in Oceanography, 131, 138-145, doi:10.1016/j.pocean.2014.12.006

20. Singh, A., N. Gandhi, R. Ramesh, and S. Prakash (2015), Role of Cyclonic Eddy in enhancing Primary and New production in the Bay of Bengal, Journal of Sea Research, 97, 5-13, doi:10.1016/j.seares.2014.12.002

21. Singh, A., A. Mohiuddin, R. Ramesh, and S. Raghav (2014), Estimating the Loss of Himalayan Glaciers under Global Warming Using the δ¹⁸O-Salinity Relation in the Bay of Bengal, Environmental Science and Technology Letters, 1(5), 249-253, doi:10.1021/ez500076z; (ACS Editors’ Choice Publication, Seawater Survey Traces Loss of Himalayan Glaciers)

22. Singh, A., K. Hårding, H. R. V. Reddy, and A. Godhe (2014), An assessment of Dinophysis blooms in the coastal Arabian Sea, Harmful Algae, 34, 29-35, doi: 10.1016/j.hal.2014.02.006

23. Singh, A., R. Ramesh, and A. Godhe (2014), Inter- and intra-specific carbon and nitrogen assimilation by cultured dinoflagellate and diatom species in an isotopic enrichment culture experiment, Current Science, 106 (6), 867-870

24. Singh, A., M. W. Lomas, and N. R. Bates (2013), Revisiting N₂ fixation in the North Atlantic Ocean: Significance of deviations from the Redfield Ratio, atmospheric deposition and climate variability, Deep Sea Research, Part II, 93, 148-158. doi:10.1016/j.dsr2.2013.04.008i

25. Singh, A., N. Gandhi, and R. Ramesh (2012), Contribution of atmospheric nitrogen deposition to new production in the nitrogen limited photic zone of the northern Indian Ocean, Journal of Geophysical Research: Oceans,117 (C6), doi:10.1029/2011JC007737

26. Gandhi, N., A. Singh, S. Prakash, R. Ramesh, Mini Raman, M. S. Sheshshayee, and S. Shetye (2011), First direct N₂ fixation measurements during a Trichodesmium bloom in the eastern Arabian Sea, Global Biogeochemical Cycles, 25 (4), doi:10.1029/2010GB003970

27. Thirumalai, K., A. Singh, and R. Ramesh (2011), A MATLAB^TM code to perform weighted linear regression with (correlated or uncorrelated) errors in bivariate data, Journal of the Geological Society of India, 77, 377-380.

28. Singh, A., and R. Ramesh (2011), Contribution of riverine dissolved inorganic nitrogen flux to new production in the coastal northern Indian Ocean - an assessment, International Journal of Oceanography, vol 2011, doi: 10.1155/2011/983561

29. Singh, A., R. A. Jani, and R. Ramesh (2010), Spatiotemporal variations of the δ¹⁸O-salinity relation in the northern Indian Ocean, Deep Sea Research, Part I, 57(11), 1422-1431, doi:10.1016/j.dsr.2010.08.002.

30. Gandhi, N., A. Singh, R. Ramesh, and M. S. Sheshshayee (2010), Nitrogen sources for new production in the NE Indian Ocean, Advances in Geosciences, 24, 55-67.

31. Ramesh, R., and A. Singh (2010), Isotopic fractionation in open systems: application to organic matter decomposition in ocean and land, Current Science, 98(3), 406-411.