Institution
National Institute of Oceanography, India
Facility•Panjim, Goa, India•
About: National Institute of Oceanography, India is a facility organization based out in Panjim, Goa, India. It is known for research contribution in the topics: Monsoon & Population. The organization has 4713 authors who have published 6927 publications receiving 174272 citations.
Topics: Monsoon, Population, Bay, Phytoplankton, Continental shelf
Papers published on a yearly basis
Papers
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TL;DR: The polyunsaturated to saturated fatty acid ratio decreased when I. galbana was grown under high irradiance levels or under nitrogen-limiting conditions, and the relative distribution of the highly unsaturated fatty acid docosahexaenoic acid slightly increased under high light conditions and decreased under low nitrogen levels.
162 citations
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TL;DR: In this paper, a critical examination reveals that the organic enrichment on the slope of the Indian margin is two to four higher (max. 16.71%), while the productivity in the former region is three to four times lower than the latter, suggesting that the influence of productivity on organic enrichment is of secondary importance.
162 citations
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TL;DR: Examining historical patterns of sea surface temperature (SST) and associated anomalies (1982-2012) and compared warming trends with a unique compilation of corresponding coral bleaching records from throughout the region indicated that the northern Red Sea has not experienced mass bleaching despite intensive Degree Heating Weeks (DHW) of >15°C-weeks, and it is proposed that the region represents a thermal refuge of global importance.
Abstract: Tropical reefs have been impacted by thermal anomalies caused by global warming that induced coral bleaching and mortality events globally. However, there have only been very few recordings of bleaching within the Red Sea despite covering a latitudinal range of 15° and consequently it has been considered a region that is less sensitive to thermal anomalies. We therefore examined historical patterns of sea surface temperature (SST) and associated anomalies (1982–2012) and compared warming trends with a unique compilation of corresponding coral bleaching records from throughout the region. These data indicated that the northern Red Sea has not experienced mass bleaching despite intensive Degree Heating Weeks (DHW) of >15°C-weeks. Severe bleaching was restricted to the central and southern Red Sea where DHWs have been more frequent, but far less intense (DHWs 8°C-weeks), and bleaching was restricted to the central and southern Red Sea despite the lower thermal stress (DHWs < 8°C-weeks). Heat stress assays carried out in the northern (Hurghada) and central (Thuwal) Red Sea on four key reef-building species confirmed different regional thermal susceptibility, and that central Red Sea corals are more sensitive to thermal anomalies as compared to those from the north. Together, our data demonstrate that corals in the northern Red Sea have a much higher heat tolerance than their prevailing temperature regime would suggest. In contrast, corals from the central Red Sea are close to their thermal limits, which closely match the maximum annual water temperatures. The northern Red Sea harbours reef-building corals that live well below their bleaching thresholds and thus we propose that the region represents a thermal refuge of global importance.
162 citations
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TL;DR: A strong dependence of the adsorption capacity on pH was observed, the capacity increase as pH value decrease and the optimum pH value is pH 1.0.
161 citations
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TL;DR: In this article, an analytical hierarchical process (AHP)-based approach to coastal vulnerability studies as an improvement to the existing methodologies for vulnerability assessment is presented. And the authors also encourage the inclusion of socioeconomic parameters along with the physical parameters to calculate the coastal vulnerability index using AHP-derived weights.
Abstract: . As a consequence of change in global climate, an increased frequency of natural hazards such as storm surges, tsunamis and cyclones, is predicted to have dramatic affects on the coastal communities and ecosystems by virtue of the devastation they cause during and after their occurrence. The tsunami of December 2004 and the Thane cyclone of 2011 caused extensive human and economic losses along the coastline of Puducherry and Tamil Nadu. The devastation caused by these events highlighted the need for vulnerability assessment to ensure better understanding of the elements causing different hazards and to consequently minimize the after- effects of the future events. This paper demonstrates an analytical hierarchical process (AHP)-based approach to coastal vulnerability studies as an improvement to the existing methodologies for vulnerability assessment. The paper also encourages the inclusion of socio-economic parameters along with the physical parameters to calculate the coastal vulnerability index using AHP-derived weights. Seven physical–geological parameters (slope, geomorphology, elevation, shoreline change, sea level rise, significant wave height and tidal range) and four socio-economic factors (population, land use/land cover (LU/LC), roads and location of tourist areas) are considered to measure the physical vulnerability index (PVI) as well as the socio-economic vulnerability index (SVI) of the Puducherry coast. Based on the weights and scores derived using AHP, vulnerability maps are prepared to demarcate areas with very low, medium and high vulnerability. A combination of PVI and SVI values are further utilized to compute the coastal vulnerability index (CVI). Finally, the various coastal segments are grouped into the 3 vulnerability classes to obtain the coastal vulnerability map. The entire coastal extent between Muthiapet and Kirumampakkam as well as the northern part of Kalapet is designated as the high vulnerability zone, which constitutes 50% of the coastline. The region between the southern coastal extent of Kalapet and Lawspet is the medium vulnerability zone and the remaining 25% is the low vulnerability zone. The results obtained enable the identification and prioritization of the more vulnerable areas of the region in order to further assist the government and the residing coastal communities in better coastal management and conservation.
161 citations
Authors
Showing all 4731 results
Name | H-index | Papers | Citations |
---|---|---|---|
Amit Kumar | 65 | 1618 | 19277 |
Muhammad Tahir | 65 | 1636 | 23892 |
Shubha Sathyendranath | 64 | 246 | 18141 |
Anjan Chatterjee | 61 | 276 | 11675 |
Stephen E. Calvert | 60 | 108 | 12044 |
Michael D. Krom | 59 | 137 | 10846 |
Victor Smetacek | 59 | 135 | 19279 |
Nicola Casagli | 58 | 391 | 11786 |
Michael S. Longuet-Higgins | 56 | 132 | 15846 |
Baruch Rinkevich | 54 | 249 | 8819 |
Jérôme Vialard | 52 | 160 | 9094 |
Matthieu Lengaigne | 51 | 147 | 11510 |
José M. Carcione | 50 | 346 | 9421 |
Antonio M. Pascoal | 49 | 371 | 8905 |
Assaf Sukenik | 49 | 125 | 7166 |