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2 edition of effect of proposed Soviet river diversions on Arctic sea ice processes. found in the catalog.

effect of proposed Soviet river diversions on Arctic sea ice processes.

Tom Holt

effect of proposed Soviet river diversions on Arctic sea ice processes.

by Tom Holt

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  • 19 Currently reading

Published by University of East Anglia in Norwich .
Written in English


Edition Notes

Thesis (Ph.D), University of East Anglia, School of Environmental Sciences, 1988.

ID Numbers
Open LibraryOL14593137M

Effects of recent decreases in arctic sea ice on an ice-associated marine bird George J. Divokya,⇑, Paul M. Lukacsb, Matthew L. Druckenmillerc a Friends of Cooper Island, 32nd Ave. East, Seattle, WA , USA bWildlife Biology Program, Department of Ecosystem and Conservation Sciences, College of Forestry and Conservation, University of Montana, Missoula, MT , USA.   The dramatic decline of Arctic sea ice in recent decades is caused by a mixture of global warming and a natural, decades-long atmospheric hot spot over Greenland and the Canadian Arctic.

Dvorkin, E. N., Possible changes in the sea level of the Arctic seas, In: {\em Arctic Climate Regime at the 20th and 21st Centuries Transition, Gidrometeoizdat, Leningrad, , (in Russian). has a major impact on the long-term trend in Arctic sea ice loss. The Arctic has warmed about times faster than the earth in general. This is called “Arctic Amplification” and is caused by the disappearance of sea ice. Arctic ice thickness has decreased 40% since the ’s. Between , approximately 50% of the decline in sea File Size: KB.

The loss of older sea ice suggests the Arctic ice cover is becoming thinner. There is also evidence to suggest the sea ice melt season is becoming longer, meaning sea ice is melting earlier in the year and freezing later than it used to. The compounding effects of global warming on Arctic sea ice directly impact the health of Arctic ecosystems. Arctic sea ice now starts melting 11 days earlier and it starts refreezing 26 days later than it used to, on average (see Figure 3). Figure 1. March and September Monthly Average Arctic Sea Ice Extent, – This figure shows Arctic sea ice extent for the months of September and March of each year from through


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Effect of proposed Soviet river diversions on Arctic sea ice processes by Tom Holt Download PDF EPUB FB2

Most of these would be of local or regional scale and confined to the Soviet Union [Micklin, ]. However, some macroscale alterations with international implications are possible. Of these, modifications in the sea ice cover of the Arctic Ocean that are induced by diminution of freshwater discharge are the most by: The effect of proposed Soviet river diversions on Arctic Sea ice processes.

Author: Holt, Tom. ISNI: Awarding Body: University of East Anglia Current Institution: University of East Anglia Date of Award: Availability of Full Text.

A numerical model is constructed to evaluate the effect of river diversions on the circulation of the Arctic Ocean, including the climatically important response in the extent of sea by:   A numerical model is constructed to evaluate the effect of river diversions on the circulation of the Arctic Ocean, including the climatically important response in the extent of sea ice.

The ocean model solves the primitive equations of motion in finite-difference form for the irregular geometry of the Arctic Ocean and Greenland/Norwegian Sea, using km horizontal grid spacing and up to 13 Cited by: "Atlantic Arctic sea ice variations" () Supervisors: T M L Wigley/P M Kelly T Holt - "The effect of proposed Soviet river diversions on Arctic sea ice processes" () Environmental Sciences, University of East Anglia Supervisor: G S Boulton B K Reid.

A new study led by NASA researchers demonstrates that fresh water flowing from rivers into the Arctic Ocean can have a significant effect on the extent of sea ice cover.

Warm water discharges can accelerate the melting of sea ice near the coast. The strong salinity stratification of the Arctic Ocean prevents substantial ice‐free conditions in winter by suppressing convection and reducing upward heat flux from the Atlantic Water.

These conditions would be significantly altered in the sensitive southern Eurasian basin if suggested diversions of western Siberian rivers were by: These observations and analysis of current warming trends indicate that the Arctic sea ice is melting at a faster rate than previously forecasted. One of the positive impacts of this early Arctic melt is the opening up of the Northern Sea Route (NSR) or the Northeast Passage for ship by: Proposed massive river diversions in the Arctic could, by increasing the shelf salinities and driving a deeper flow into the interior, cause a thinning of the halocline and place the Atlantic water in more direct contact with the surface mixed layer.

On the halocline of the Arctic Ocean Sea shelf is very broad (up to km) and Cited by: The areal extent, concentration and thickness of sea ice in the Arctic Ocean and adjacent seas have strongly decreased during the recent decades, but cold, snow-rich winters have been common over Author: Timo Vihma.

The Arctic sea ice is the basis for a unique ecosystem that is comprised of ice algae and microorganisms, fish, seabirds and marine mammals. Some species depend on sea ice for essential life functions and other associate with sea ice for a specific reason, but also occur in other habitats.

Start studying Arctic case study. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Search. 3 Arctic ice stores. Greenland ice sheet, Eurasian permafrost, Arctic ocean ice.

Effect of ocean ice melt on sea level and temperature. SEA LEVEL: no direct impact but albedo=indirect TEMP: Temp change due to albedo. The effect of proposed Soviet river diversions on Arctic sea ice processes: Kelly, Dr. P.M. Jones, C.G. Tropical cyclone forecasting with a limited area model: Wigley, Prof.

Jones, J.M. Implications of climate change for acidic deposition over Europe (2 vols) Davies, Prof. Kelly, P.M. Climatic change in the North Sea. Although this summer’s Arctic sea ice melt has exceeded records and expectations, scientists have yet to announce that the sea ice has reached its summer minimum extent.

Sea ice extent has continued to decline during September, reaching below four million square kilometers early in the month. Recent dramatic sea-ice reductions augment longer-term trends, but statistically significant sea-ice extent reductions are apparent in all calendar months even if the last 6 years are excluded (Kay et al.

The ongoing retreat of Arctic sea-ice has implications for the climate system. In order to better understand these, J. Screen (&). PhD Theses. Author Title Year Principal Supervisor; The effect of proposed Soviet river diversions on Arctic sea ice processes: Kelly, Dr.

P.M. Huy, L.Q. Climate change adaptation: engaging local society in the research process: Atlantic Arctic sea ice variations: Kelly, Dr.

P.M. The areal extent, concentration and thickness of sea ice in the Arctic Ocean and adjacent seas have strongly decreased during the recent decades, but cold, snow-rich winters have been common over mid-latitude land areas since A review is presented on studies addressing the local and remote effects of the sea ice decline on weather and File Size: KB.

ANRVMA ARI 8 November ab c d Figure 2 Photographs showing the stages of sea ice: (a) new ice only a few centimeters thick; (b) ridged seasonal ice,(c) perennial ice in April before melt; (d) and perennial ice in August during melt.(Figure 2).There is spatial variability both in the horizontal and in the vertical dimension.

Reconstructed changes in Arctic sea ice over the past 1, years Christophe Kinnard1, Christian M. Zdanowicz2, David A. Fisher2, Elisabeth Isaksson3, Anne de Vernal4 & Lonnie G. Thompson5 the summer Arctic sea ice cover, after calibration of the multiproxyCited by: Semtner, A.J., The climatic response of the Artic Ocean to Soviet river diversions.

Climatic Change 6, Stehr, N. and H. von Storch, The social construct of climate and climate. Because of increased ice along the north coast of the Soviet Union and in view of heavier demands for late‐sea son shipping, the Soviet Min istry of Shipbuilding is study ing plans for a series.As sea ice melts and becomes liquid water, _____ heat is then absorbed from the Sun, creating warmer surface waters.

more Arctic sea ice reached a historic minimum in that was approximately __________ the size of the long-term average recorded during Perspectives on the Arctic’s Shrinking Sea-Ice Cover Mark C. Serreze,1* Marika M. Holland,2 Julienne Stroeve1 Linear trends in arctic sea-ice extent over the period to are negative in every month.

This ice loss is best viewed as a combination of strong natura l variability in the couple d ice Cited by: