Browsing by Author "Unnikrishnan, A.S."
Now showing items 41-60 of 83
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Observed sea-level rise in the north Indian Ocean coasts during the past century
Unnikrishnan, A.S. (National Institute of Oceanography, India, 2007) -
Observed tidal currents on the continental shelf off the east coast of India
Jithin, A.K.; Unnikrishnan, A.S.; Fernando, V.; Subeesh, M.P.; Fernandes, R.; Khalap, S.; Narayan, S.; Agarvadekar, Y.; Gaonkar, M.; Tari, P.; Kankonkar, A.; Vernekar, S. (Elsevier, 2017)In the present study, we analysed 9-month long data from Acoustic Doppler Current Profilers (ADCP) deployed on the shelf off the east coast of India to study the characteristics of tidal currents in the region. The ADCPs ... -
Observed tidal currents on the continental shelf off the west coast of India
Subeesh, M.P.; Unnikrishnan, A.S.; Fernando, V.; Agarvadekar, Y.; Khalap, S.T.; Satelkar, N.P.; Shenoi, S.S.C. (Elsevier, 2013)Observed currents from ADCPs, deployed at 100 m and 150 m depths, on the continental shelf at five different locations along the west coast of India, were used to study the characteristics of both barotropic and baroclinic ... -
Observed tides at Mumbai High offshore region near the continental shelf break in the eastern Arabian Sea
Joseph, A.; Vijaykumar, K.; Mehra, P.; Unnikrishnan, A.S.; Sundar, D.; Desai, R.G.P. (Current Science Association, 2009)The observed large tidal range (up to 3 m during spring tide) at the Mumbai High offshore region located near the continental shelf break, off the central west coast of India, is described based on simultaneous tidal ... -
Observed variations in stratification and currents in the Zuari estuary, west coast of India
Sundar, D.; Unnikrishnan, A.S.; Michael, G.S.; Kankonkar, A.; Nidheesh, A.G.; Subeesh, M.P. (Springer, 2015)25-hour time series measurements of vertical salinity profiles and currents in Zuari estuary were done during both spring and neap tidal cycles of pre-monsoon (April–May), south-west monsoon (June–September) and post-monsoon ... -
Observing storm surges in the Bay of Bengal from satellite altimetry
Antony, C.; Testut, L.; Unnikrishnan, A.S. (Elsevier, 2014)In the present study, we examined 15 years (1993e2007) of satellite altimeter and coastal tide-gauge records in the Bay of Bengal and demonstrate that satellite altimetry can be a useful complementary dataset for the study ... -
On an upwelling front along the west coast of India during later part of southwest monsoon
Unnikrishnan, A.S.; Antony, M.K. (Indian Society for Physical Sciences of the Oceans, 1992)A coastal front, associated with upwelling, is identified from the observed thermal field along the west coast of India during September, 1987. The front, which is seen very clearly upto a depth of about 75 m, has a ... -
On an upwelling front, propagation of upwelling and vertical velocity in the eastern Arabian sea during monsoon, 1987
Antony, M.K.; Unnikrishnan, A.S. (PORSEC Committee, Shimizu, Japan, 1992)A coastal upwelling front parallel to the coast and identifiable upto a depth of 75 m was observed between 12.5 and 16 degrees N along the eastern Arabian Sea in September, 1987 from closely spaced digital BT data. With a ... -
On vertical velocity fluctuations and internal tides in an upwelling region off the west coast of India
Unnikrishnan, A.S.; Antony, M.K. (Academic Press, 1990) -
Past and future changes in extreme sea levels and waves
Lawe, J.A.; Woodworth, P.L.; Knutson, T.; McDonald, R.E.; Mclnnes, K.L.; Woth, K.; Von Storch, H.; Wolf, J.; Swail, V.; Bernier, N.B.; Gulev, S.; Horsburgh, K.J.; Unnikrishnan, A.S.; Hunter, J.R.; Weisse, R. (Wiley-Blackwell, 2010) -
Remarks on the sea level records of the north Indian ocean
Unnikrishnan, A.S. (Permanent Service for Mean Sea Level, 2007) -
Return period estimates of extreme sea level along the east coast of India from numerical simulations
Sindhu, B.; Unnikrishnan, A.S. (Springer, 2012)Estimates of return periods of extreme sea level events along the coast are useful for impact assessment. A vertically integrated 2D model was developed for the simulation of storm surges in the Bay of Bengal. The bathymetry ... -
Robustness of observation-based decadal sea level variability in the Indo-Pacific Ocean
Nidheesh, A.G.; Lengaigne, M.; Vialard, J.; Izumo, T.; Unnikrishnan, A.S.; Meyssignac, B.; Hamlington, B.; Montegut, C.D. (Wiley, 2017)We examine the consistency of Indo-Pacific decadal sea level variability in 10 gridded, observation-based sea level products for the 1960-2010 period. Decadal sea level variations are robust in the Pacific, with more than ... -
Role of cyclones and other factors in the decline of the ports of northern Orissa
Tripati, S.; Unnikrishnan, A.S. (Current Science Association, 2011)The maritime trade of Orissa with transoceanic countries is evident from the early historical period onwards. It has been observed that new ports were set up after the decline of old ports in the nearby vicinity; however, ... -
Sea level change
Church, J.A.; Clark, P.U.; Cazenave, A.; Gregory, J.M.; Jevrejeva, S.; Levermann, A.; Merrifield, M.A.; Milne, G.A.; Nerem, R.S.; Nunn, P.D.; Payne, A.J.; Pfeffer, W.T.; Stammer, D.; Unnikrishnan, A.S. (P.M.Cambridge University Press, 2013)This chapter considers changes in global mean sea level, regional sea level, sea level extremes, and waves. Confidence in projections of global mean sea level rise has increased since the Fourth Assessment Report (AR4) ... -
Sea level changes along the Indian coast: Observations and projections
Unnikrishnan, A.S.; Kumar, K.R.; Fernandes, S.E.; Michael, G.S.; Patwardhan, S.K. (Indian Academy of Sciences, 2006)Sea level changes can be of two types: (i) changes in the mean sea level and (ii) changes in the extreme sea level. The former is a global phenomenon while the latter is a regional phenomenon. Estimates of mean sea level ... -
Sea-Level Rise
Swapna, P.; Ravichandran, M.; Nidheesh, G.; Jyoti, J.; Sandeep, N.; Deepa, J.S.; Unnikrishnan, A.S. (Springer , Singapore, 2020)Key Messages: There is high confidence that the rate of global mean sea level (GMSL) rise has increased. Human-caused climate change has made a substantial contribution to the rise since 1900. The GMSL has risen by 1.7 ... -
Sea-Level Rise by 2100
Church, J.A.; Clark, P.A.; Cazenave, A.; Gregory, J.M.; Jevrejeva, S.; Levermann, A.; Merrifield, M.A.; Milne, G.A.; Nerem, R.S.; Nunn, P.D.; Payne, A.J.; Pfeffer, W.T.; Stammer, D.; Unnikrishnan, A.S. (AAAS, 2013) -
Sea-level-rise trends off the Indian coasts during the last two decades
Unnikrishnan, A.S.; Nidheesh, A.G.; Lengaigne, M. (Current Science Association, 2015)The present communication discusses sea-level-rise trends in the north Indian Ocean, particularly off the Indian coasts, based on estimates derived from satellite altimeter and tide-gauge data. Altimeter data analysis over ... -
Seasonal cycle of temperature and associated wave phenomena in the upper layers of the Bay of Bengal
PrasannaKumar, S.; Unnikrishnan, A.S. (American Geophysical Union, 1995)