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The first paper Emerging Traits of Sea Ice in the Atlantic Sector of the Arctic by
Nalan Koç, Mats A. Granskog and Philipp Assmy summarizes the results from the
Arctic Region, showing that not only has the sea ice cover of Arctic changed
drastically over decades but also its thickness. The warmer Arctic is changing the
Northern Hemisphere’s weather patterns. The authors stress that the following questions need to be answered: What melts the ice? How the thinner ice responds to
atmospheric forcing? What are the effects of the changing sea ice system on iceassociated ecosystem? The paper reviews the Norwegian Young Sea Ice Cruise
expedition to the Arctic in 2015 and documents its main findings that include the
following: unexpected thick snow cover, new and growing ice formed with little
snow, storms slowing ice growth, ocean heat flux, early phytoplankton blooms
below thick snow covered sea ice, etc.
M.  A. Atmanand, R.  Venkatesan and G.  Latha in their paper Indian Arctic
Multisensory Moored Underwater Observatory cover a wide spectrum of subjects,
viz. the need for the Arctic mooring, nature of the mooring system, parameters measured, analysis, etc. Datasets collected on temperature/salinity, ambient noise and
corrosion from Arctic using ‘IndARC I, II, III and IV’ for 3 years are presented and
described in detail. The results from spectrogram and iceberg cracking/calving and
those from anthrophony and biophony are also discussed.
Walter Roest and Richard Haworth in their paper The Arctic Ocean: Advances in
Geopolitics and Geoscience discuss the advances in geopolitics and scientific
exploration with reference to the Arctic Ocean. In their scholarly article, they discuss the major changes that have occurred in the Arctic area: first, being the opening
of new sea routes, the northeastern and the northwestern routes, and, second, the
coming in force of the UN Convention on the Law of the Sea (UNCLOS) which
defines different sovereignty regimes for the oceans. The authors discuss data types
required for mapping continental shelf beyond 200 nautical mile, collaboration and
cooperation being paramount to the success of the exploration in geoscientific fields
in the Arctic Ocean.
The last paper of this part, authored by Rasik Ravindra, deals with the characteristics of glacial sediments collected from various glacial and periglacial environments of the Schirmacher Oasis of East Antarctica. The author discusses the
provenance, the geochemistry and the micro textures developed on the quartz grains
and deduces the palaeoclimate of Schirmacher Oasis from this study.
Part II comprises three papers that deal with climate change and the adaptations
to this changing scenario. These are Adaptation to Climate Change: A Fishery
Technology Perspective by C.N.  Ravishankar and V.  R. Madhu, Potential
Technologies for Climate Resilient Agriculture in the Indian Himalayan Region by
Latika Pandey and Ayyanadar Arunachalam and Need for Reorienting Climate
Change Research in the Himalaya: Balancing the Approach by Shyamal K. Nandi,
Vikram S. Negi and Ranbeer S. Rawal.
The first paper describes the many ways in which fisheries may be impacted by
climate change, such as shifts in productivity, displacement or migration of species
and more. The authors deal with issues of over-exploitation and suggest that interventions with fishery technologies and development of models for adaptation may
assist the mitigation of the immediate concerns.
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