Articles | Volume 1, issue 2
https://doi.org/10.5194/wcd-1-635-2020
https://doi.org/10.5194/wcd-1-635-2020
Research article
 | 
20 Oct 2020
Research article |  | 20 Oct 2020

The effect of seasonally and spatially varying chlorophyll on Bay of Bengal surface ocean properties and the South Asian monsoon

Jack Giddings, Adrian J. Matthews, Nicholas P. Klingaman, Karen J. Heywood, Manoj Joshi, and Benjamin G. M. Webber

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Cited articles

Amol, P., Vinayachandran, P. N., Shankar, D., Thushara, V., Vijith, V., Chatterjee, A., and Kankonkar, A.: Effect of freshwater advection and winds on the vertical structure of chlorophyll in the northern Bay of Bengal, Deep-Sea Res. Pt. II, https://doi.org/10.1016/j.dsr2.2019.07.010, 2019. 
Bernie, D. J., Woolnough, S. J., Slingo, J. M., and Guilyardi, E.: Modeling diurnal and intraseasonal variability of the ocean mixed layer, J. Climate, 18, 1190–1202, https://doi.org/10.1175/JCLI3319.1, 2005. 
Bernie, D. J., Guilyardi, E., Madec, G., Slingo, J. M., Woolnough, S. J., and Cole, J.: Impact of resolving the diurnal cycle in an ocean–atmosphere GCM. Part 2: A diurnally coupled CGCM, Clim. Dynam., 31, 909–925, https://doi.org/10.1007/s00382-008-0429-z, 2008. 
Blondeau-Patissier, D., Gower, J. F., Dekker, A. G., Phinn, S. R., and Brando, V. E.: A review of ocean color remote sensing methods and statistical techniques for the detection, mapping and analysis of phytoplankton blooms in coastal and open oceans, Prog. Oceanogr., 123, 123–144, https://linkinghub.elsevier.com/retrieve/pii/ S0079661114000020, 2014. 
Boss, E., Slade, W., and Hill, P.: Effect of particulate aggregation in aquatic environments on the beam attenuation and its utility as a proxy for particulate mass, Opt. Express, 17, 9408–9420, https://doi.org/10.1364/OE.17.009408, 2009. 
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Short summary
The impact of chlorophyll on the southwest monsoon is unknown. Here, seasonally varying chlorophyll in the Bay of Bengal was imposed in a general circulation model coupled to an ocean mixed layer model. The SST increases by 0.5 °C in response to chlorophyll forcing and shallow mixed layer depths in coastal regions during the inter-monsoon. Precipitation increases significantly to 3 mm d-1 across Myanmar during June and over northeast India and Bangladesh during October, decreasing model bias.
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