Refine your search
Collections
Co-Authors
Journals
Year
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Anoopa Prasad, C.
- Differential Upper Ocean Response Depicted in Moored Buoy Observations during the Pre-Monsoon Cyclone Viyaru
Abstract Views :230 |
PDF Views:80
Authors
R. Venkatesan
1,
K. Jossia Joseph
1,
C. Anoopa Prasad
1,
M. Arul Muthiah
1,
S. Ramasundaram
1,
P. Murugesh
1
Affiliations
1 National Institute of Ocean Technology, Ministry of Earth Sciences, Chennai 600 100, IN
1 National Institute of Ocean Technology, Ministry of Earth Sciences, Chennai 600 100, IN
Source
Current Science, Vol 118, No 11 (2020), Pagination: 1760-1767Abstract
The pre-monsoon cyclone Viyaru in the Bay of Bengal during May 2013 traversed a long track from 5°N to 22°N over 7 days with basin-wide response, which was well captured by the time series observations of OMNI buoy network along with satellite data. The differential upper ocean characteristics and its variable response reveal that vertical mixing override horizontal advection during cyclone passage. This study provides insight into the variability in wave spectra, differential response on either side of the track and presence of cold core eddy combined with a thick barrier layer in modulating the upper ocean response.Keywords
Bay Of Bengal, Barrier Layer, Cyclone Viyaru, Eddies, OMNI Buoys, Wave Spectra.Full Text
References
- Alam, Md. M., Hossain, Md. A. and Shafee, S., Frequency of Bay of Bengal cyclonic storms and depressions crossing different coastal zones. Int. J. Climatol., 2003, 23, 1119–1125.
- Akter, N. and Tsuboki, K., Role of synoptic-scale forcing in cyclogenesis over the Bay of Bengal. Clim. Dyn., 2014, 43, 2651–2662.
- Premkumar, K., Ravichandran, M., Kalsi, S., Sengupta, D. and Gadgil, S., First results from a new observational system over the Indian Seas. Curr. Sci., 2000, 78(03), 323–330.
- Venkatesan, R. et al., In situ ocean subsurface time-series measurements from OMNI buoy network in the Bay of Bengal. Curr. Sci., 2013, 104, 1166–1177.
- Maneesha, K., Murty, V. S. N., Ravichandran, M., Lee, T., Yu, W. and McPhaden, M. J., Upper ocean variability in the Bay of Bengal during the tropical cyclones Nargis and Laila. Prog. Oceanogr., 2012, 106, 49–61.
- Obasi, G. O. P., WMO’s programme on tropical cyclone. Mausam, 1997, 48, 103–112.
- McPhaden, M. J. et al., Ocean–atmosphere interactions during cyclone Nargis. EOS Trans. Am. Geophys. Union, 2009, 90, 53– 54.
- Vissa, N. K., Satyanarayana, A. N. V. and Prasad Kumar, B., Response of upper ocean during passage of MALA cyclone utilizing ARGO data. Int. J. Appl. Earth Obs. Geoinf., 2012, 14, 149–159.
- Gopalakrishna, V. V., Murty, V. S. N., Sarma, M. S. S. and Sastry, J. S., Thermal response of upper layers of Bay of Bengal to forcing of a severe cyclonic storm: a case study. Indian J. Geo-Mar. Sci., 1993, 22, 8–11.
- Behera, S. K., Deo, A. A. and Salvekar, P. S., Investigation of mixed layer response to Bay of Bengal cyclone using a simple ocean model. Meteorol. Atmosph. Phys., 1998, 65, 77–91.
- Neetu, S. et al., Influence of upper-ocean stratification on tropical cyclone-induced surface cooling in the Bay of Bengal. J. Geophys. Res. Oceans, 2012, 117(C12), C12020.
- Sengupta, D., Goddalehundi, B. R. and Anitha, D. S., Cycloneinduced mixing does not cool SST in the post-monsoon north Bay of Bengal. Atmosph. Sci. Lett., 2008, 9, 1–6.
- Girishkumar, M. S. et al., Observed oceanic response to tropical cyclone Jal from a moored buoy in the south-western Bay of Bengal. Ocean Dyn., 2014, 64, 325–335.
- Joseph, K. J., Balchand, A. N., Hareeshkumar, P. V. and Rajesh, G., Inertial oscillation forced by the September 1997 cyclone in the Bay of Bengal. Curr. Sci., 2007, 92, 790–794.
- Vissa, N. K., Satyanarayana, A. N. V. and Kumar, B. P., Response of upper ocean and impact of barrier layer on Sidr cyclone induced sea surface cooling. Ocean Sci. J., 2013, 48, 279–288.
- Navaneeth, K. N., Martin, M. V., Joseph, K. J. and Venkatesan, R., Contrasting the upper ocean response to two intense cyclones in the Bay of Bengal. Deep Sea Res. Part Oceanogr. Res. Pap., 2019, 147, 65–78.
- Mathew, S., Natesan, U., Latha, G., Venkatesan, R., Rao, R. and Ravichandran, M., Observed warming of sea surface temperature in response to tropical cyclone Thane in the Bay of Bengal. Curr. Sci., 2018, 114, 1407–1413.
- Mandal, S., Sil, S., Shee, A. and Venkatesan, R., Upper ocean and subsurface variability in the Bay of Bengal during cyclone Roanu: a synergistic view using in situ and satellite observations. Pure Appl. Geophys., 2018, 175, 4605–4624.
- Kotal, S. D., Bhattacharya, S. K., Bhowmik, S. K. R. and Kundu, P. K., Growth of cyclone Viyaru and Phailin – a comparative study. J. Earth Syst. Sci., 2014, 123, 1619–1635.
- A preliminary report on cyclonic storm, Viyaru over Bay of Bengal (10–16 May 2013), IMD, 2013.
- Leipper, D. F. and Volgenau, D., Hurricane heat potential of the Gulf of Mexico. J. Phys. Oceanogr., 1972, 2, 218–224.
- Kara, A. B., Rochford, P. A. and Hurlburt, H. E., An optimal definition for ocean mixed layer depth. J. Geophys. Res. Oceans, 2000, 105, 16803–16821.
- Bonjean, F. and Lagerloef, G. S. E., Diagnostic model and analysis of the surface currents in the tropical Pacific Ocean. J. Phys. Oceanogr., 2002, 32, 2938–2954.
- Price, J. F., Upper ocean response to a hurricane. J. Phys. Oceanogr., 1981, 11, 153–175.
- Cyclone Amphan: Oceanic Conditions Pre- and Post-Cyclone using in situ and Satellite Observations
Abstract Views :174 |
PDF Views:104
Authors
Suchandra A. Bhowmick
1,
Neeraj Agarwal
1,
Rashmi Sharma
1,
R. Sundar
2,
R. Venkatesan
2,
C. Anoopa Prasad
1,
K. N. Navaneeth
1
Affiliations
1 Space Applications Centre, Indian Space Research Organization, Ahmedabad 380 015, IN
2 National Institute of Ocean Technology, MOES, Chennai 600 100, IN
1 Space Applications Centre, Indian Space Research Organization, Ahmedabad 380 015, IN
2 National Institute of Ocean Technology, MOES, Chennai 600 100, IN
Source
Current Science, Vol 119, No 9 (2020), Pagination: 1510-1516Abstract
Amphan, a category-5 tropical cyclone, originated over Bay of Bengal (BoB) and had a landfall in West Bengal, India on 20 May, causing havoc in the region. In this study, in-situ buoy and various satellite measurements are used to analyse the ocean condition before and after the storm, primarily from the air–sea interaction perspective. Widespread anomalous warming was observed in BoB before the event, due to high net surface insolation received by the ocean. The warm SST anomalies in the central BoB were coincident with anti-cyclonic warm core eddies, implying availability of higher oceanic heat content. Observations from BD13 buoy, close to the cyclone track showed heating of the overlying atmosphere due to this ocean warming. Strong surface cooling was observed after passage of the cyclone due to wind induced upper-ocean mixing that is stimulated by low stratification in BoB.Keywords
Air–Sea Interaction, Oceanic Conditions, Satellite and In situ Observations, Tropical Cyclones.Full Text