Search Results - "Valsala, V."

Intensification of upwelling along Oman coast in a warming scenario by Praveen, V., Ajayamohan, R. S., Valsala, V., Sandeep, S.

“…The oceanic impact of poleward shift in monsoon low‐level jet (MLLJ) is examined using a Regional Ocean Modeling System (ROMS). Two sets of downscaling…”
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Regional CO2 flux estimates for 2009-2010 based on GOSAT and ground-based CO2 observations by Maksyutov, S, Takagi, H, Valsala, V K, Saito, M, Oda, T, Saeki, T, Belikov, D A, Saito, R, Ito, A, Yoshida, Y, Morino, I, Uchino, O, Andres, R J, Yokota, T

“…We present the application of a global carbon cycle modeling system to the estimation of monthly regional CO2 fluxes from the column-averaged mole fractions of…”
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Data-based estimates of the ocean carbon sink variability – first results of the Surface Ocean pCO2 Mapping intercomparison (SOCOM) by Rödenbeck, C, Bakker, D C E, Gruber, N, Iida, Y, Jacobson, A R, Jones, S, Landschützer, P, Metzl, N, Nakaoka, S, Olsen, A, G-H, Park, Peylin, P, Rodgers, K B, Sasse, T P, Schuster, U, Shutler, J D, Valsala, V, Wanninkhof, R, Zeng, J

“…Using measurements of the surface-ocean CO2 partial pressure (pCO2) and 14 different pCO2 mapping methods recently collated by the Surface Ocean pCO2 Mapping…”
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Air-sea CO2 flux in the Pacific Ocean for the period 1990-2009 by Ishii, M, Feely, R A, Rodgers, K B, Park, G.-H, Wanninkhof, R, Sasano, D, Sugimoto, H, Cosca, C E, Nakaoka, S, Telszewski, M, Nojiri, Y, Fletcher, S E. Mikaloff, Niwa, Y, Patra, P K, Valsala, V, Nakano, H, Lima, I, Doney, S C, Buitenhuis, E T, Aumont, O, Dunne, J P, Lenton, A, Takahashi, T

“…Air-sea CO2 fluxes over the Pacific Ocean are known to be characterized by coherent large-scale structures that reflect not only ocean subduction and upwelling…”
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Sea-air CO2 fluxes in the Indian Ocean between 1990 and 2009 by Sarma, V V. S. S, Lenton, A, Law, R M, Metzl, N, Patra, P K, Doney, S, Lima, I D, Dlugokencky, E, Ramonet, M, Valsala, V

“…The Indian Ocean (44° S-30° N) plays an important role in the global carbon cycle, yet it remains one of the most poorly sampled ocean regions. Several…”
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Understanding the Role of Nutrient Limitation on Plankton Biomass Over Arabian Sea Via 1‐D Coupled Biogeochemical Model and Bio‐Argo Observations by Anju, M., Sreeush, M. G., Valsala, V., Smitha, B. R., Hamza, Faseela, Bharathi, G., Naidu, C. V.

“…Arabian Sea (AS) is known to have seasonal phytoplankton blooms during winter and summer driven by dynamically distinct physical forcing mechanisms and…”
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A decadal inversion of CO2 using the Global Eulerian-Lagrangian Coupled Atmospheric model (GELCA): sensitivity to the ground-based observation network by Shirai, T., Ishizawa, M., Zhuravlev, R., Ganshin, A., Belikov, D., Saito, M., Oda, T., Valsala, V., Gomez-Pelaez, A.J., Langenfelds, R., Maksyutov, S.

“…We present an assimilation system for atmospheric carbon dioxide (CO 2 ) using a Global Eulerian-Lagrangian Coupled Atmospheric model (GELCA), and demonstrate…”
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A New Climatology of Depth of Nitracline in the Bay of Bengal for Improving Model Simulations by Sridevi, B., Ashitha, M. K., Sarma, V. V. S. S., Udaya Bhaskar, T. V. S., Chakraborty, Kunal, Bhavani, I. V. G., Valsala, V.

“…The dissolved nitrate is one of the major essential nutrients for primary production in the tropical ocean and it is brought to the surface though mixing. The…”
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Climate impacts on the structures of the North Pacific air-sea CO2 flux variability by Valsala, V, Maksyutov, S, Telszewski, M, Nakaoka, S, Nojiri, Y, Ikeda, M, Murtugudde, R

“…Some dominant spatial and temporal structures of the North Pacific air-sea CO2 fluxes in response to the Pacific Decadal Oscillation (PDO) are identified in…”
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Carbon flux estimation for Siberia by inverse modeling constrained by aircraft and tower CO2 measurements by Saeki, T., Maksyutov, S., Sasakawa, M., Machida, T., Arshinov, M., Tans, P., Conway, T. J., Saito, M., Valsala, V., Oda, T., Andres, R. J., Belikov, D.

“…Being one of the largest carbon reservoirs in the world, the Siberian carbon sink however remains poorly understood due to the limited numbers of observation…”
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Climate impacts on the structures of the North Pacific air-sea CO 2 flux variability by Valsala, V., Maksyutov, S., Telszewski, M., Nakaoka, S., Nojiri, Y., Ikeda, M., Murtugudde, R.

“…Some dominant spatial and temporal structures of the North Pacific air-sea CO2 fluxes in response to the Pacific Decadal Oscillation (PDO) are identified in…”
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Sea–air CO 2 fluxes in the Indian Ocean between 1990 and 2009 by Sarma, V. V. S. S., Lenton, A., Law, R. M., Metzl, N., Patra, P. K., Doney, S., Lima, I. D., Dlugokencky, E., Ramonet, M., Valsala, V.

“…The Indian Ocean (44° S–30° N) plays an important role in the global carbon cycle, yet it remains one of the most poorly sampled ocean regions. Several…”
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Air–sea CO 2 flux in the Pacific Ocean for the period 1990–2009 by Ishii, M., Feely, R. A., Rodgers, K. B., Park, G.-H., Wanninkhof, R., Sasano, D., Sugimoto, H., Cosca, C. E., Nakaoka, S., Telszewski, M., Nojiri, Y., Mikaloff Fletcher, S. E., Niwa, Y., Patra, P. K., Valsala, V., Nakano, H., Lima, I., Doney, S. C., Buitenhuis, E. T., Aumont, O., Dunne, J. P., Lenton, A., Takahashi, T.

“…Air–sea CO2 fluxes over the Pacific Ocean are known to be characterized by coherent large-scale structures that reflect not only ocean subduction and upwelling…”
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A global coupled Eulerian-Lagrangian model and 1 ? 1 km CO2 surface flux dataset for high-resolution atmospheric CO2 transport simulations by Ganshin, A, Oda, T, Saito, M, Maksyutov, S, Valsala, V, Andres, R J, Fisher, R E, Lowry, D, Lukyanov, A, Matsueda, H, Nisbet, E G, Rigby, M, Sawa, Y, Toumi, R, Tsuboi, K, Varlagin, A, Zhuravlev, R

“…We designed a method to simulate atmospheric CO2 concentrations at several continuous observation sites around the globe using surface fluxes at a very high…”
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Regional CO 2 flux estimates for 2009–2010 based on GOSAT and ground-based CO 2 observations by Maksyutov, S., Takagi, H., Valsala, V. K., Saito, M., Oda, T., Saeki, T., Belikov, D. A., Saito, R., Ito, A., Yoshida, Y., Morino, I., Uchino, O., Andres, R. J., Yokota, T.

“…We present the application of a global carbon cycle modeling system to the estimation of monthly regional CO2 fluxes from the column-averaged mole fractions of…”
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A global coupled Eulerian-Lagrangian model and 1 × 1 km CO 2 surface flux dataset for high-resolution atmospheric CO 2 transport simulations by Ganshin, A., Oda, T., Saito, M., Maksyutov, S., Valsala, V., Andres, R. J., Fisher, R. E., Lowry, D., Lukyanov, A., Matsueda, H., Nisbet, E. G., Rigby, M., Sawa, Y., Toumi, R., Tsuboi, K., Varlagin, A., Zhuravlev, R.

“…We designed a method to simulate atmospheric CO2 concentrations at several continuous observation sites around the globe using surface fluxes at a very high…”
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Observed denitrification in the northeast Arabian Sea during the winter-spring transition of 2009 by Anju, M., Valsala, V., Smitha, B.R., Bharathi, G., Naidu, C.V.

“…The central and northeast Arabian Sea (AS) has an intense and thick oxygen minimum zone (OMZ) and denitrification zone. It is comparable with the strongest OMZ…”
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Biological production in the Indian Ocean upwelling zones –Part 1: refined estimation via the use of a variable compensation depth in ocean carbon models by Sreeush, Mohanan Geethalekshmi, Valsala, Vinu, Pentakota, Sreenivas, Prasad, Koneru Venkata Siva Rama, Murtugudde, Raghu

“…Biological modelling approach adopted by the Ocean Carbon-Cycle Model Intercomparison Project (OCMIP-II) provided amazingly simple but surprisingly accurate…”
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Influence of differences in current GOSAT XCO2 retrievals on surface flux estimation by Takagi, Hiroshi, Houweling, Sander, Andres, Robert J., Belikov, Dmitry, Bril, Andrey, Boesch, Hartmut, Butz, Andre, Guerlet, Sandrine, Hasekamp, Otto, Maksyutov, Shamil, Morino, Isamu, Oda, Tomohiro, O'Dell, Christopher W., Oshchepkov, Sergey, Parker, Robert, Saito, Makoto, Uchino, Osamu, Yokota, Tatsuya, Yoshida, Yukio, Valsala, Vinu

“…We investigated differences in the five currently‐available datasets of column‐integrated CO2 concentrations (XCO2) retrieved from spectral soundings collected…”
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A decadal inversion of CO 2 using the Global Eulerian-Lagrangian Coupled Atmospheric model (GELCA): sensitivity to the ground-based observation network by Shirai, T, Ishizawa, M, Zhuravlev, R, Ganshin, A, Belikov, D, Saito, M, Oda, T, Valsala, V, Gomez-Pelaez, A J, Langenfelds, R, Maksyutov, S

“…We present an assimilation system for atmospheric carbon dioxide (CO ) using a Global Eulerian-Lagrangian Coupled Atmospheric model (GELCA), and demonstrate…”
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