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Your search keyword '"Nagamani, P. V."' showing total 65 results
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65 results on '"Nagamani, P. V."'

52. Assessing the potential of open-source libraries for managing satellite data products – A case study on disaster management.

Author

Sharma, Vinod Kumar, Amminedu, E., Rao, G. Srinivasa, Nagamani, P. V., Mohan Rao, K. Ram, and Bhanumurthy, V.

Subjects
REMOTE sensing, DATABASE management
Abstract

Organization and management of huge satellite data products (remote sensing imagery) is a huge task. Traditional methods of managing the remote sensing satellite data products like file-based structure is the simplest and cheapest way of organizing data. The major disadvantage of file-based organization is data inconsistency and difficulty in handling unanticipated queries. Other approaches like use of proprietary relational database management system software’s are costly and demand specific skills. To reduce the cost and ease for managing the satellite products, this study has been attempted. Available open-source libraries (Geospatial Data Abstraction Library (GDAL), Openlayers) have been customized to give an end to end solution for remote sensing satellite data management. Different software modules have been developed for metadata generation, organization of satellite data as service, cataloguing, clipping and retrieval of data for area of interest (AOI) on demand. A case study of disaster management has been attempted to show case the efficiency of the software modules developed using open-source libraries. [ABSTRACT FROM PUBLISHER]

Published
2017
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54. Retrieval and Validation of Chlorophyll-a Concentrations in the Coastal Waters Off Yanam and Kakinada (Godavari) Basin Along East Coast of India

Author

Latha, T. Preethi, primary, Nagamani, P. V., additional, Rao, K. H., additional, Dash, S. K., additional, Choudhury, S. B., additional, Rehman, Aziz, additional, Sarma, V. V. S. S., additional, Babu, M. Naveen, additional, Amarendra, P., additional, Rao, B. Srinivasa, additional, and Prasad, T. D. V., additional

Published
2013
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64. Role of physical oceanography parameters in ocean’s biological response with the passage of cyclone Titliin the Bay of Bengal

Author

Vijay Prakash, K, Geetha Vimala, Ch S, Nagamani, P V, Baranval, N K, Manche, Shivashankar, Preethi Latha, T, Bhavani, I V G, Umamaheswara Rao, Y, Phanindra, Ch S N, Srinivas, K, and Kumari, K P

Abstract

Titliwas the cataclysmic storm to afflict Indian coast during 2018. Tropical cyclones may inflate nutrients on the surface layer of the ocean by entrainment and mixing, as a result, the upper oligotrophic and euphotic layers may be recharged with rich nutrients resulting in triggering phytoplankton blooms and significant increase in primary production. The biological response using the chlorophyll concentration from Oceansat-2 OCM and the Net Primary Productivity from MODIS-A to this cyclone and its relation with the cyclone intensity has been studied. Role of physical oceanography parameters has been studied using multiple satellite-derived parameters like SST, TCHP, SLA, Ekman pumping velocity, wind stress and wind vectors and eddies during the passage of cyclone Titli. The results showed an increase in the surface chlorophyll concentration from 0.08 (before) to 0.32 mg m−3(after), whereas NPP enhanced from 457 to 1313 mgC m−2day−1with an SST drop of ~2.58°C (30.25°–27.67°C). The study confirms that the physical parameters are the key components that influence the biological response in addition to the cyclone intensity.

Published
2021
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