Indian Ocean

State of the Climate in Asia 2024

The World Meteorological Organization’s State of the Climate in Asia 2024 report warns that the region is warming nearly twice as fast as the global average, driving more extreme weather and posing serious threats to lives, ecosystems, and economies. In 2024, Asia experienced its warmest or second warmest year on …

Stable oxygen, hydrogen isotope ratios and salinity variations of the surface Southern Indian Ocean waters

Stable isotope (? 18O and ? D) and salinity measurements were made on the surface waters collected from the Southern Indian Ocean during the austral summer (25 January to 1 April 2006) onboard R/V Akademik Boris Petrov to study the relative dominance of various hydrological processes, viz. evaporation, precipitation, melting …

Sea level rise in the Indian Ocean

Sea level rise in the Indian Ocean by Satheesh C. Shenoi, Indian National Centre for Ocean Information Services (INCOIS), Ministry of Earth Sciences (MoES), Hyderanad presented at the South Asian Media Briefing on Climate Change, CSE, India Habitat Centre, New Delhi, 24

First nodule to first mine-site: development of deep-sea mineral resources from the Indian Ocean

Polymetallic nodules found on the deep seafloor (>4000 m water depth) have been recognized as an alternative source for certain metals, when land deposits get exhausted. Spread over millions of square kilometres on the seafloor of all the oceans, these deposits contain as much as 40% of combined metals (Mn …

An ocean of wealth

FISHERS’ folklores are full of them but the creatures of the deep sea are still a mystery. An inventory of marine species, to be released in London on October 4, would answer the age-old question— what lives in the oceans? The Census of Marine Life, a network of researchers from …

Indian Ocean rising faster than others

Sep 06th, 2010 - Rashme Sehgal | Newly detected rising sea levels in parts of the Indian Ocean have led Indian scientists to conclude that the Indian Ocean is rising faster than other oceans. Dr Satheesh C. Shenoi, director, Indian National Centre for Ocean Infor-mation Services, speaking at a workshop …

Sharper divide

SEA level is rising, but only in parts of oceans. US researchers have said certain countries across the Indian Ocean, including Bangladesh, Sri Lanka and Indonesia, and Bay of Bengal would see higher than the average sea level rise predicted by UN’s Intergovernmental Panel on Climate Change. On the contrary, …

Fifty-year trends in global ocean salinities and their relationship to broad-scale Warming

Using over 1.6 million profiles of salinity, potential temperature, and neutral density from historical archives and the international Argo Program, this study develops the three-dimensional field of multidecadal linear change for ocean-state properties. The period of analysis extends from 1950 to 2008, taking care to minimize the aliasing associated with …

Global phytoplankton decline over the past century

In the oceans, ubiquitous microscopic phototrophs (phytoplankton) account for approximately half the production of organic matter on Earth. Analyses of satellite-derived phytoplankton concentration (available since 1979) have suggested decadal-scale fluctuations linked to climate forcing, but the length of this record is insufficient to resolve longer-term trends. Here we combine available …

Sea levels rising in parts of Indian Ocean: study

Far-reaching effects on future regional, global climate Several different models used in the study Newly detected rising sea levels in parts of the Indian Ocean, including the coastlines of the Bay of Bengal, the Arabian Sea, Sri Lanka, Sumatra and Java, appear to be at least partly a result of …

Patterns of Indian Ocean sea-level change in a warming climate

Mapping variations in regional sea level changes of different parts of the Indian Ocean could help developing countries better adapt to the effects of climate change, according to a study. Researchers from the University of Colorado, United States, identified distinct patterns of sea-level rises using observational and satellite data combined …

Abrupt change of Antarctic moisture origin at the end of Termination II

The deuterium excess of polar ice cores documents past changes in evaporation conditions and moisture origin. New data obtained from the European Project for Ice Coring in Antarctica Dome C East Antarctic ice core provide new insights on the sequence of events involved in Termination II, the transition between the …

Catastrophic natural disasters and economic growth

This paper examines the short and long-run average causal impact of catastrophic natural disasters on economic growth by combining information from comparative case studies. The counterfactual of the cases studied is assessed by constructing synthetic control groups, taking advantage of the fact that the timing of large sudden natural disasters …

Cyclones named by 8 nations, monitored in city

Pune Even as Laila formed a depression and Bandu has just been formed in the Indian ocean, Phailin, Komen, Phet or Giri might come knocking as monsoon begins next month. These are cyclones named by countries in the Indian sub-continent. The India Meterological Department of Pune and Delhi have been …

Deep-sea mining: India takes the plunge

CHENNAI: In a major milestone for the country

Aerosols: Integrating an understanding of source-receptor relationships with climate forcing on regional scales

Aerosols: Integrating an understanding of source-receptor relationships with climate forcing on regional scales a paper presented by Chandra Venkataraman at National climate research conference, IIT Delhi, March 5-6, 2010.

Tropical cyclones and climate change

Whether the characteristics of tropical cyclones have changed or will change in a warming climate — and if so, how — has been the subject of considerable investigation, often with conflicting results. Large amplitude fluctuations in the frequency and intensity of tropical cyclones greatly complicate both the detection of long-term …

Coastal zones and climate change

This book examines the emerging environmental stresses on coastal areas of the Indian Ocean and the resulting challenges confronting coastal planners and decision makers in a warming world. It assesses the prospective risks to coastal ecosystems and infrastructure, evaluate the opportunities and obstacles for technological innovations and adaptation strategies, and …

Tsunami watch

Five years after the Indian Ocean disaster, the technology is in place, but local preparedness is less advanced.

Kolkata, major cities at risk from rising sea level

A large number of cities across the world, including the eastern Indian metropolis of Kolkata, are at risk from the threat of rising sea level due to global warming, a major international study has claimed. According to the study by the Scientific Committee on Antarctic Research, sea levels would rise …

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