Browsing Scholarly literature by Author "Reddy, N.P.C."
Now showing items 1-20 of 36
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A mid-Holocene strandline deposit on the inner shelf of Cochin, West coast of India
Reddy, N.P.C.; Rao, N.V.N.D. (Geological Society of India, 1992) -
Carbon dioxide emissions from Indian monsoonal estuaries
Sarma, V.V.S.S.; Viswanadham, R.; Rao, G.D.; Prasad, V.R.; Kumar, B.S.K.; Naidu, S.A.; Kumar, N.A.; Rao, D.B.; Sridevi, T.; Krishna, M.S.; Reddy, N.P.C.; Sadhuram, Y.; Murty, T.V.R. (American Geophysical Union, 2012)Estuaries are known to be strong source for atmospheric CO sub(2), however, little information is available from Indian estuaries. In order to quantify CO sub(2) emissions from the Indian estuaries, samples were collected ... -
Carbon dioxide emissions from the tropical Dowleiswaram Reservoir on the Godavari River, Southeast of India
Prasad, M.H.K.; Sarma, V.V.S.S.; Sarma, V.V.; Krishna, M.S.; Reddy, N.P.C. (Scientific Research Publishing, 2013)Time-series observations were conducted in the Dowleiswaram dam reservoir that was constructed on the largest monsoonal river in India to understand the source of inorganic carbon, and fluxes to the atmosphere. The reservoir ... -
Changing sedimentary environments during Pleistocene-Holocene in a core from the eastern continental margin of India
Rao, V.P.; Rao, Ch.M.; Mascarenhas, A.; Rao, K.M.; Reddy, N.P.C.; Das, H.C. (Geological Society of India, 1992)Sedimentological and geochemical investigations of the sediments in a core from the eastern continental margin of India, at a water depth of 1200 m, revealed two distinct types. The Late Pleistocene sediments are greyish-black ... -
Clay mineral distribution from Bhimunipatnam to Pudimadaka along cental eastern continental shelf of India
Reddy, N.P.C.; Rao, K.M. (CSIR-NISCAIR, 1989)Forty eight sediment samples, collected from 50-100m depth, have been analysed for their clay mineral composition and distribution. Kaolinite with chlorite (K + C) is the predominant mineral followed by illite and ... -
Clay mineral distribution in the shelf sediments off the northern part of the east coast of india
Rao, V.P.; Reddy, N.P.C.; Rao, Ch.M. (Elsevier, 1988)Forty-eight sediment samples from the continental shelf between Visakhapatnam and the Ganges were analysed by X-ray diffraction for the composition and distribution of clay minerals. Estuarine samples of the Hooghly are ... -
Clay mineralogy of innershelf sediments off Cochin, west coast of India
Reddy, N.P.C.; Rao, N.V.N.D.; Dora, Y.L. (NISCAIR, New Delhi, 1992)Kaolinite, montmorillonite and illite are the clay minerals occurring in decreasing order of abundance in the Holocene sediments of inner shelf and adjacent coastal environments of Cochin Region. Southern part of Vembanad ... -
Distribution and sources of organic matter in surface sediments of the eastern continental margin of India
Krishna, M.S.; Naidu, S.A.; Subbaiah, Ch.V.; Sarma, V.V.S.S.; Reddy, N.P.C. (American Geophysical Union, 2013)The sources and distribution of organic matter (OM) in surface sediments of the eastern continental margin of India, including the region influenced by river discharge, were investigated using content, molar C:N ratios and ... -
Distribution and sources of particulate organic matter in the Indian monsoonal estuaries during monsoon
Sarma, V.V.S.S.; Krishna, M.S.; Prasad, V.R.; Kumar, B.S.K.; Naidu, S.A.; Rao, G.D.; Viswanadham, R.; Sridevi, T.; Kumar, P.P.; Reddy, N.P.C. (American Geophysical Union, 2014)The distribution and sources of particulate organic carbon (POC) and nitrogen (PN) in 27 Indian estuaries were examined during the monsoon using the content and isotopic composition of carbon and nitrogen. Higher phytoplankton ... -
Export of dissolved inorganic nutrients to the northern Indian Ocean from the Indian monsoonal rivers during discharge period
Krishna, M.S.; Prasad, M.H.K.; Rao, D.B.; Viswanadham, R.; Sarma, V.V.S.S.; Reddy, N.P.C. (Elsevier, 2016)Coastal regions are highly productive due to the nutrients largely supplied by rivers. To examine the contribution of dissolved inorganic nutrients (DIN) by Indian rivers to coastal waters, data were collected near the ... -
Export of particulate organic carbon and nitrogen to the northern Indian Ocean by the monsoonal rivers of India
Krishna, M.S.; Prasad, M.H.K.; Naidu, S.A.; Srikanth, G.; Reddy, N.P.C.; Sarma, N.S. (Springer, 2023)This study analyses particulate organic carbon (POC) and particulate nitrogen (PN) export from Indian monsoonal rivers to the north Indian Ocean. Indian monsoonal rivers export approximately 1.2 Tg yr−1 (1Tg = 1012 g) of ... -
Fluxes of dissolved organic carbon and nitrogen to the northern Indian Ocean from the Indian monsoonal rivers
Krishna, M.S.; Prasad, V.R.; Sarma, V.V.S.S.; Reddy, N.P.C.; Hemalatha, K.P.J.; Rao, Y.V. (American Geophysical Union, 2015)Dissolved organic carbon (DOC) and nitrogen (DON) were measured in 27 major and medium monsoonal estuaries along the Indian coast during southwest monsoon in order to understand the spatial variability in their concentrations ... -
Heavy sediment influx during early Holocene: Inference from clay mineral studies in a core from the western Bay of Bengal
Reddy, N.P.C.; Rao, K.M. (Indian Academy of Sciences, 2001)Clay mineral studies were carried out in a 650 cm long sediment core collected at a depth of 2200 m from the north-western Bay of Bengal. Illite is the predominant mineral, followed by montmorillonite and chlorite. Illite ... -
High CO2 emissions from the tropical Godavari estuary (India) associated with monsoon river discharges
Sarma, V.V.S.S.; Kumar, N.A.; Prasad, V.R.; Venkataramana, V.; Appalanaidu, S.; Sridevi, B.; Kumar, B.S.K.; Bharati, M.D.; Subbaiah, C.V.; Acharyya, T.; Rao, G.D.; Viswanadham, R.; Gawade, L.; Manjary, D.T.; Kumar, P.P.; Rajeev, K.; Reddy, N.P.C.; Sarma, V.V.; Kumar, M.D.; Sadhuram, Y.; Murty, T.V.R. (American Geophysical Union, 2011)Estuaries have been under sampled to establish them as sources or sinks of the atmospheric carbon dioxide. Such poor coverage is well known for tropical, particularly monsoon driven, estuaries. In an attempt to study the ... -
Impact of atmospheric and physical forcings on biogeochemical cycling of dissolved oxygen and nutrients in the coastal Bay of Bengal
Sarma, V.V.S.S.; Sridevi, B.; Maneesha, K.; Sridevi, T.; Naidu, S.A.; Prasad, V.R.; Venkataramana, V.; Acharya, T.; Bharati, M.D.; Subbaiah, C.V.; Kiran, B.S.; Reddy, N.P.C.; Sarma, V.V.; Sadhuram, Y.; Murty, T.V.R. (Springer, 2013)Time-series observations were conducted off Visakhapatnam, central west coast of Bay of Bengal, from October 2007 to April 2009 to examine the influence of physical and atmospheric processes on water column nutrients ... -
Imprints of Chilika Lake in the offshore region – A geomorphologic evidence
Subrahmanyam, V.; Murthy, K.S.R.; Subrahmanyam, A.S.; Rao, K.M.; Sarma, K.V.L.N.S.; Reddy, N.P.C.; Murty, G.P.S.; Devi, D.K. (Indian Academy of Sciences, 2006)Chilika Lake (Orissa, India) is the largest lagoon in the subcontinent along the east coast of India, situated between latitudes 19 degrees 28’ and 19 degrees 54’ N and longitudes 85 degrees 05’ and 85 degrees 38’ E. In ... -
Influence of river discharge on plankton metabolic rates in the tropical monsoon driven Godavari estuary, India
Sarma, V.V.S.S.; Gupta, S.N.M.; Babu, P.V.R.; Acharyya, T.; Harikrishnachari, N.; Vishnuvardhan, K.; Rao, N.S.; Reddy, N.P.C.; Sarma, V.V.; Sadhuram, Y.; Murty, T.V.R.; Kumar, M.D. (Elsevier, 2009)To examine the influence of river discharge on plankton metabolic balance in a monsoon driven tropical estuary, daily variations in physico-chemical and nutrients characteristics were studied over a period of 15 months ... -
Intra-annual variability in nutrients in the Godavari estuary, India
Sarma, V.V.S.S.; Prasad, V.R.; Kumar, B.S.K.; Rajeev, K.; Devi, B.M.M.; Reddy, N.P.C.; Sarma, V.V.; DileepKumar, M. (Elsevier, 2010)Daily variations in nutrients were monitored for 15 months (September 2007-November 2008) in the Godavari estuary, Andhra Pradesh, India, at two fixed locations. River discharge has significant influence on nutrients loading ... -
Investigating the impacts of treated effluent discharge on coastal water health (Visakhapatnam, SW coast of Bay of Bengal, India)
Shaik, A.U.R.; Biswas, H.; Babu, N.S.; Reddy, N.P.C.; Ansari, Z.A. (Springer, 2017)The present study investigated the impacts of treated effluent discharge on physicochemical and biological properties of coastal waters from three pharmaceuticals situated along the coast of Visakhapatnam (SW Bay of Bengal). ... -
Lithological and mineralogical changes observed in a core from the western Bay of Bengal
Reddy, N.P.C.; Rao, K.M.; Putra, S.V.S.P.; Rao, Ch.M. (Allied, New Delhi (India), 1997)Lithological and mineralogical studies were carried out on sediments from a 650 cm long core from the north western Bay of Bengal at a depth of 2700 m. These studies demarcate a boundary at 380 cm designated as unit 1 from ...