Now showing items 21-40 of 47

    • Monsoonal reversal of remote sensing biases in latent heat flux over eastern Arabian Sea 

      Muraleedharan, P.M.; Pankajakshan, T.; Sathe, P.V.; Murty, V.S.N.; Santosh, K.R. (American Geophysical Union, 2006)
      The Arabian Sea is a unique basin where a number of atmospheric and oceanographic processes occur due to the contrasting climatic conditions, which it experiences. The drastic monsoonal variability occurring in the boundary ...
    • Observed anomalous upwelling in the Lakshadweep Sea during the summer monsoon season of 2005 

      Gopalakrishna, V.V.; Rao, R.R.; Nisha, K.; GirishKumar, M.S.; Pankajakshan, T.; Ravichandran, M.; Johnson, Z.; Girish, K.; Aneeshkumar, N.; Srinath, M.; Rajesh, S.; Rajan, C.K. (American Geophysical Union, 2008)
      Repeat near-fortnightly expendable bathythermograph (XBT) transects made along Kochi-Kavaratti (KK) shipping lane in the Lakshadweep Sea (LS) during 2002–2006 are examined to describe the observed year-to-year variability ...
    • Observed seasonal variability of barrier layer in the Bay of Bengal 

      Pankajakshan, T.; Muraleedharan, P.M.; Rao, R.R.; Somayajulu, Y.K.; Reddy, G.V.; Revichandran, C. (American Geophysical Union, 2007)
      The observed formation of Barrier Layer (BL) and the seasonal variability of BL thickness (BLT) in the Bay of Bengal are examined utilizing the most comprehensive data set. Thick BL (~50m) first appears in the coastal ...
    • Oceanographic coverage of Andaman and Nicobar Seas 

      Desai, B.N.; Bhargava, R.M.S.; Sarupria, J.S.; Pankajakshan, T. (New Delhi: Indian Association for the Advancement of Science, 1988)
    • Oceanographic data management - A national perspective 

      Pankajakshan, T. (School of Naval Oceanology and Meteorology, 2007)
      The scope of a Distributed Database Management System (DDMS) with a Centralized Metadata Directory (CMD) is discussed considering the Indian perspectives in ocean data management. The approach presented in the proposed ...
    • Quality of temperature and salinity data from Argo profiling floats in the Bay of Bengal 

      Parvathi, V.; Pankajakshan, T.; Rajkumar, M.; Prasannakumar, S.; Muraleedharan, P.M.; Ravichandran, M.; Rao, R.R.; Gopalakrishna, V.V. (CSIR-NISCAIR, 2014)
      In the present study, temperature and salinity from APEX -Argo floats with reported SPB (Argo-SPB) and salinity from normal floats without any reported SPB (Argo-N) in the BoB have been subjected to quality check (QC) ...
    • Reduced near-surface thermal inversions in 2005-06 in the southeastern Arabian Sea (Lakshadweep Sea) 

      Nisha, K.; Rao, S.A.; Gopalakrishna, V.V.; Rao, R.R.; GirishKumar, M.S.; Pankajakshan, T.; Ravichandran, M.; Rajesh, S.; Girish, K.; Johnson, Z.; Anuradha, M.; Gavaskar, S.S.M.; Suneel, V.; Krishna, S.M. (American Meteorological Society, 2009)
      Repeat XBT transects made at near-fortnightly intervals in the Lakshadweep Sea (southeastern Arabian Sea) and ocean data assimilation products are examined to describe the year-to-year variability in the observed near-surface ...
    • Role of subsurface layer temperature inversion in cyclone induced warming in the northern Bay of Bengal 

      Anand, P.; Jimna, J.C.M.; Nair, A.P.; Suresh, I.; Suneel, V.; Gopika, S.; Pankajakshan, T. (Elsevier, 2023)
      Subsurface Layer Temperature Inversion (SLTI) is a prominent physical process occurring in the Bay of Bengal (BoB) during winter. BoB also witnesses intense cyclones during winter (post-monsoon). Sidr is a category-5 cyclone ...
    • Seasonal variability of the observed barrier layer in the Arabian Sea 

      Pankajakshan, T.; Thoppil, P.; Rao, R.R.; Muraleedharan, P.M.; Somayajulu, Y.K.; Gopalakrishna, V.V.; Murthugudde, R.; Reddy, G.V.; Revichandran, C. (American Meteorological Society, 2008)
      The formation mechanisms of the barrier layer (BL) and its seasonal variability in the Arabian Sea (AS) are studied using a comprehensive dataset of temperature and salinity profiles from Argo and other archives for the ...
    • Software for validating parameters retrieved from satellite 

      Muraleedharan, P.M.; Sathe, P.V.; Pankajakshan, T. (The Indian Society of Remote Sensing, 2006)
      A PC-based interactive software has been developed and presented here for validating geophysical data retrieved from satellite mounted sensors operating in visible, infrared and microwave frequencies. The program, coded ...
    • Surface heat fluxes using satellite observations: A case study in the northwest Pacific 

      Pankajakshan, T.; Sugimori, Y.; Akiyama, M. (American Meteorological Society, 1995)
    • Surface layer temperature inversion in the Arabian Sea during winter 

      Pankajakshan, T.; Ghosh, A.K. (Oceanographic Society, Japan, 1992)
      Surface layer temperature inversion in the south eastern Arabian Sea, during winter has been studied using Bathythermograph data collected from 1132 stations. It is found that the inversion in this area is a stable seasonal ...
    • Surface layer temperature inversion in the Bay of Bengal 

      Pankajakshan, T.; Gopalakrishna, V.V.; Muraleedharan, P.M.; Reddy, G.V.; Araligidad, N.; Shenoy, Shrikant (Pergamon, 2002)
      Surface layer temperature inversion occurring in the Bay of Bengal has been addressed. Hydrographic data archived in the Indian Oceanographic Data Center are used to understand various aspects of the temperature inversion ...
    • Surface layer temperature inversion in the Bay of Bengal 

      Pankajakshan, T.; Gopalakrishna, V.V.; Muraleedharan, P.M.; Reddy, G.V.; Araligidad, N. (NIO, Dona Paula, Goa (India), 2000)
      Hydrographic and XBT data archived in the Indian Oceanographic Data Centre (IODC) are used to understand the process of temperature inversions occurring in the Bay of Bengal. The following aspects of the inversions are ...
    • Surface layer temperature inversion in the Bay of Bengal: Main characteristics and related mechanisms 

      Pankajakshan, T.; Suresh, I.; Gautham, S.; PrasannaKumar, S.; Lengaigne, M.; Rao, R.R.; Neetu, S.; Hegde, A. (American Geophysical Union, 2016)
      Surface layer temperature inversion (SLTI), a warm layer sandwiched between surface and subsurface colder waters, has been reported to frequently occur in conjunction with barrier layers in the Bay of Bengal (BoB), with ...
    • Temperature and depth error in the mechanical bathythermograph data from the Indian Ocean 

      Gautham, S.; Pankajakshan, T. (NISCAIR, 2016)
      For arriving at realistic estimates of warming rate of oceans at regional and global level, it is important to understand persistent biases in observations of ocean temperature. In the present study, collocated MBT and CTD ...
    • Temperature error in digital bathythermograph data 

      Pankajakshan, T.; Reddy, G.V.; Ratnakaran, L.; Sarupria, J.S.; RameshBabu, V. (NISCAIR, CSIR, 2003)
      Simultaneous Digital Bathythermograph (DBT) and Nansen Cast data collected during two cruises of R.V. Gaveshani (GV-117 and GV-118) and archived in Indian Oceanographic Data Centre (IODC) are used to determine existing ...
    • Upper ocean heat budget of western-north Pacific using satellite and ship observations 

      Pankajakshan, T.; Sugimori, Y.; Akiyama, M. (Advanced Marine Science and Technology Society, 1997)
      Surface layer (0-17~'C isotherm depth) heat balance of a closed rectangular system (the Kuroshio system) in the North-West Pacific has been examined for a period of 10 days (from 16th to 25th, October, 1991), by considering ...
    • Validation of argo data in the Indian Ocean 

      Pankajakshan, T.; Muraleedharan, P.M.; Gopalakrishna, V.V.; Reddy, G.V.; Ratnakaran, L.; Revichandran, C.; Murty, V.S.N. (Universidad de Concepcion, 2004)
      ARGO-salinity data from the Indian Ocean are validated using salinity from float-versus-float match-ups and also using CTD observations from three cruises. Validation data sets are selected in such a way that the float and ...