Browsing Institute's contributions by Author "Laluraj, C.M."
Now showing items 1-20 of 20
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A century of climate variability in central Dronning Maud Land, East Antarctica, and its relation to Southern Annular Mode and El Nino-Southern Oscillation
Naik, S.S.; Thamban, M.; Laluraj, C.M.; Redkar, B.L.; Chaturvedi, A. (American Geophysical Union, 2010)Stable isotope records of oxygen and hydrogen were studied from a 65 m long ice core retrieved from central Dronning Maud Land, East Antarctica, in order to reconstruct the coastal Antarctic climate variability during the ... -
Antarctic climate variability during the past few centuries based on ice core records from coastal Dronning Maud Land and its implications on the Recent warming
Thamban, M.; Naik, S.S.; Laluraj, C.M.; Chaturvedi, A.; Ravindra, R. (Springer-Verlag, 2012)Analysis of the available instrumental records revealed that Antarctica has undergone complex and significant temperature changes during the recent decades, with a substantial warming in most parts of the West Antarctica ... -
Assessment on seasonal variation of groundwater quality of phreatic aquifers - A river basin system
Laluraj, C.M.; Gopinath, G. (Springer, 2006)Spatial distribution of pH, electrical conductivity (EC), total dissolved solids (TDS), fluoride and total iron content of ground water samples collected from the muvattupuzha river basin, Kerala, India, has been studied ... -
Change detection studies of Sagar Island, India, using Indian Remote Sensing Satellite 1C linear imaging self-scan sensor III data
DineshKumar, P.K.; Gopinath, G.; Laluraj, C.M.; Seralathan, P.; Mitra, D. (The Coastal Education and Research Foundation, 2007)The coastal zone of Sagar Island, West Bengal, India, is subjected to various cyclic and random processes that continuously modify the region. The shoreline and land-use/land cover changes have been studied using Indian ... -
Enhanced biological production in the southeastern Arabian Sea during spring intermonsoon
Laluraj, C.M.; Balachandran, K.K.; Sabu, P. (Italian Association of Oceanography and Limnology, 2012)Hydrographic observations in the southeastern Arabian Sea (SEAS) have identified a warm (over 30 degrees C) and stratified water mass (stability more than 5x10 sup(-5) m sup(-1)) along the near shore area between 10 degrees ... -
Environmental analysis of heavy metal deposition in a flow-restricted tropical estuary and its adjacent shelf
Balachandran, K.K.; Laluraj, C.M.; Martin, G.D.; Srinivas, K.; Venugopal, P. (Taylor & Francis, 2006)The geochemical condition of surface sediments in a tropical estuary and adjoining shelf region is presented for their elemental interactions using statistical methods. Principal component analysis separated two clusters ... -
Fresh water influence on nutrient stoichiometry in a tropical estuary, Southwest coast of India
Martin, G.D.; Vijay, J.G.; Laluraj, C.M.; Madhu, N.V.; Joseph, T.; Nair, M.; Gupta, G.V.M.; Balachandran, K.K. (Corvinus University of Budapest, 2008)Cochin backwaters, a micro tidal estuary, undergo a characteristic transformation from a river dominated system during summer monsoon to a tide-dominant system during pre-monsoon season. The present study observes that as ... -
Groundwater chemistry of shallow aquifers in the coastal zones of Cochin, India
Laluraj, C.M.; Gopinath, G.; DineshKumar, P.K. (Penkala Bt., 2005)The coastal aquifers of Kerala, India experience severe degradation of water quality due to various anthropogenic activities. An attempt is made here to study the groundwater chemistry of aquifers, which lie along the ... -
Heavy metal accumulation in a flow restricted, tropical estuary
Balachandran, K.K.; Laluraj, C.M.; Nair, M.; Joseph, T.; Sheeba, P.; Venugopal, P. (Elsevier, 2005)Levels of heavy metals (Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn), organic carbon content and textural characteristics in the surficial sediments of Cochin estuary (SW coast of India) and adjacent coast are presented. ... -
High resolution climate reconstructions of recent warming using instrumental and ice core records from coastal Antarctica
Thamban, M.; Naik, S.S.; Laluraj, C.M.; Ravindra, R. (India Meteorological Department, 2011)In-situ observational record of Antarctic surface temperatures is rather sparse. Proxy based ice core studies are thus critical for reconstructing the past climate change on centennial and decadal time scales. The present ... -
Hydrodynamic and geomorphic controls on the morphology of an island ecosystem in the Vembanad Lake, West Coast of India
Laluraj, C.M.; Gopinath, G.; DineshKumar, P.K.; Balachandran, K.K. (The Coastal Education and Research Foundation, 2008)Textural characteristics of the surficial sediments around Perumbalam Island located within the Vembanad Lake, southwest coast of India, were studied on a seasonal basis to understand the geomorphic response of the region. ... -
Hydrography and biogeochemistry of the north western Bay of Bengal and the north eastern Arabian Sea during winter monsoon
Balachandran, K.K.; Laluraj, C.M.; Jyothibabu, R.; Madhu, N.V.; Muraleedharan, K.R.; Vijay, J.G.; Maheswaran, P.A.; Ashraf, T.T.M.; Nair, K.K.C.; Achuthankutty, C.T. (Elsevier, 2008)The north eastern Arabian Sea and the north western Bay of Bengal within the Indian exclusive economic zone were explored for their environmental characteristics during the winter monsoons of 2000 and 2001 respectively. ... -
Nitrate records of a shallow ice core from East Antarctica: Atmospheric processes, preservation and climatic implications
Laluraj, C.M.; Thamban, M.; Naik, S.S.; Redkar, B.L.; Chaturvedi, A.; Ravindra, R. (SAGE Publications, 2011)High-resolution records of nitrate (NO sub(3) sup(-)), oxygen isotope (delta sup(18) O) and non-sea salt sulphate (nssSO sub(4) sup(2-)) were studied using an ice core collected from central Dronning Maud Land in East ... -
Nutrient environment of red tide- infested waters off south-west coast of India
Joseph, T.; Shaiju, P.; Laluraj, C.M.; Balachandran, K.K.; Nair, M.; George, R.; Nair, K.K.C.; Sahayak, S.; Prabhakaran, M.P. (Springer, 2008)The bloom-infested waters along the southwest coast of India were assessed to bring about the probable cause related to the excessive algal production. Low nitrate and silicate concentrations were concomitant with slightly ... -
Persistent volcanic signature observed around Barren Island, Andaman Sea, India
Laluraj, C.M.; Balachandran, K.K.; Sabu, P.S.; Panampunnayil, U. (Springer, 2006)This study delineates the formation of a warm pool (> 33°C) of air to the west (downwind) of the active volcano of the Barren Island during October-November 2005. Barren Island is located in the Sumatra-Andaman region, ... -
Reconstruction of Antarctic climate change using ice core proxy records from the coastal Dronning Maud Land, East Antarctica
Thamban, M.; Laluraj, C.M.; Naik, S.S.; Chaturvedi, A. (Geological Society of India, 2011)Antarctic ice core records have provided unprecedented information on past climatic changes and forcing factors on decadal to millennial timescales. The glaciochemical and stable isotope records of a shallow ice core from ... -
Recovery of an estuary in the southwest coast of India from tsunami impacts
Laluraj, C.M.; Kesavadas, V.; Balachandran, K.K.; Gerson, V.J.; Martin, G.D.; Shaiju, P.; Revichandran, C.; Joseph, T.; Nair, M. (Springer, 2007)Water quality in the Cochin Estuary, southwest coast of India during the tsunami attack was assessed and compared with the pre and post tsunami characteristics. From the results obtained, it is evident that a drastic change ... -
Seasonal variations in groundwater chemistry of a phreatic coastal and crystalline terrain of central Kerala, India
Laluraj, C.M.; Gopinath, G.; DineshKumar, P.K.; Seralathan, P. (Taylor and Francis, 2006)This article investigates the seasonal variation in geochemical characteristics of groundwater in phreatic aquifers of the coastal plain and crystalline terrain of central Kerala, India. Within the coastal plain, the western ... -
Seasonal variations in the sediment biogenic properties of a tropical mangrove environment, southwest coast of India
Nair, M.; Jacob, J.; Nisha, P.A.; Martin, G.D.; Srinivas, K.; Sheeba, P.; Laluraj, C.M.; Joseph, T.; Balachandran, K.K. (Springer, 2010)Temporal and spatial changes in the sediment properties of a mangrove ecosystem (Cochin, southwest coast India) are presented. The region was freshwater dominated during monsoon (June-September) and seawater dominated ... -
Step-up multiple regression model to compute Chlorophyll a in the coastal waters off Cochin, southwest coast of India
Balachandran, K.K.; Jayalakshmy, K.V.; Laluraj, C.M.; Nair, M.; Joseph, T.; Sheeba, P. (Springer-Verlag, 2008)The interaction effects of abiotic processes in the production of phytoplankton in a coastal marine region off Cochin are evaluated using multiple regression models. The study shows that chlorophyll production is not limited ...