Contributors ................................................... xi
Overture ........................................................ 1
Jacques C.J. Nihoul and Louis Fortier
Oceanography and surveillance of the rapidly changing
Arctic and Sub-Arctic ........................................ 1
A problem of sovereignty and security ........................ 4
Global warming effects on the Arctic and Sub-Arctic Seas ........ 7
Jacques C.J. Nihoul
The North Atlantic Oscillation (NAO) ......................... 7
TheNAO strange attractors ................................... 10
References .................................................. 12
The case for global warming in the Arctic ...................... 13
James E. Overland
Introduction ................................................ 13
How do we know we are not wrong? ............................ 15
Arctic change ............................................... 16
Data ..................................................... 16
Models ................................................... 19
2007 sea ice loss - the fast track of Arctic change ...... 20
Conclusion .................................................. 22
References .................................................. 23
A coherency between the North Atlantic temperature nonlinear
trend, the eastern Arctic ice extent drift and change in the
atmospheric circulation regimes over the northern Eurasia ...... 25
Oleg M. Pokrovsky
Introduction ................................................ 25
North Atlantic and Arctic SST trends ........................ 26
Modulation of the ice extent in Kara Sea .................... 27
Rapid increasing ofSST in Kara and Laptev Seas .............. 30
Modulation of the sea level pressure over northern Asia ..... 31
The Arctic dipole and North Siberian oscillation ............ 31
Changes in atmospheric circulation regimes .................. 33
Modulation of the surface air temperature ................... 33
Discussion and conclusion ................................... 34
References .................................................. 35
Mesoscale atmospheric vortices in the Okhotsk and Bering
Seas: results of satellite multisensor study ................... 37
Leonid M. Mitnik
Introduction ................................................ 37
Climatology ................................................. 38
Satellites and sensors ...................................... 40
Simulation of the AMSR-E brightness temperatures and
retrieval algorithm development ............................. 41
Data ........................................................ 44
Mesoscale cyclones .......................................... 45
Okhotsk Sea .............................................. 45
Bering Sea ............................................... 50
Discussion and conclusions .................................. 53
References .................................................. 55
Recent sea ice ecosystem in the Arctic Ocean: a review ......... 57
Igor A. Melnikov
Introduction ................................................ 57
Sea ice extent and thickness ................................ 59
Physical-chemical variables ................................. 61
Sea ice biota ............................................... 64
Discussion and conclusions .................................. 66
References .................................................. 70
The effects of irradiance and nutrient supply on the
productivity of Arctic waters: a perspective on climate
change ......................................................... 73
Jean-Éric Tremblay and Jonathan Gagnon
Introduction ................................................ 73
Data mining ................................................. 75
General properties of the data set .......................... 76
The role of irradiance ...................................... 78
Onset of the productive season ........................... 79
Cumulative irradiance .................................... 80
The role of nutrients ....................................... 82
Allochthonous nitrate .................................... 82
The contribution of new and regenerated production ....... 85
Implications, perspectives and future research .............. 86
References .................................................. 89
Production of phytoplankton in the Arctic Seas and its
response on recent warming ..................................... 95
Alexander A. Vetrov and Evgeny A. Romankevich
Introduction ................................................ 95
Materials and methods ....................................... 96
Primary production .......................................... 97
Response on recent warming ................................. 103
Conclusions ................................................ 107
References ................................................. 108
Reconstruction of oceanic circulation using mineralogical
and isotopical (Nd/Pb) signatures of deep sea sediments: the
case study of the northern North Atlantic and some
perspectives for the Arctic ................................... 109
Nathalie Fagel
Introduction .................................................. 109
Present distribution of deep water masses in northern
North Atlantic ............................................. 1ll
Calibration of proxies on surface sediments from northern
North Atlantic ............................................. 112
The clay mineralogical tool ............................. 112
The Nd and Pb isotopical tool ........................... 114
Results and discussion ..................................... 115
Holocene variability of deep current supplies ........... 115
Long term stability of deep current supplies
(ODSP 646) .............................................. 117
Conclusion and perspectives ................................ 121
References ................................................. 122
Observing and interpreting the seasonal variability of the
oceanographic fluxes passing through Lancaster Sound of the
Canadian Arctic Archipelago ................................... 125
Simon Prinsenberg, Jim Hamilton, Ingrid Peterson and Roger
Pettipas
Introduction ............................................... 126
Mooring instrumentation .................................... 127
Ocean parameters ........................................... 128
Ice velocities, drafts and fluxes .......................... 132
Ocean fluxes ............................................... 135
Wind forcing ............................................... 137
Conclusion ................................................. 141
References ................................................. 142
River flux of dissolved organic carbon (DOC) and particulate
organic carbon (РОС) to the Arctic Ocean: what are the
consequences of the global changes? ........................... 145
Viacheslav V. Gordeev and Marina D. Kravchishina
Introduction ............................................... 145
River water and sediment discharges ........................ 150
Probable increase of DOC concentration and flux by 2100 .... 151
Probable increase of РОС and TOC fluxes by 2100 ............ 154
Discussion ................................................. 155
Conclusion ................................................. 157
References ................................................. 158
Mechanisms of the recent sea ice decay in the Arctic Ocean
related to the Pacific-to-Atlantic pathway .................... 161
Motoyoshi Ikeda
Introduction ............................................... 161
Arctic pathway ............................................. 164
Wind-induced ice cover variability ......................... 166
Discussion ................................................. 168
References ................................................. 169
Frontal zones in the Norwegian, Greenland, Barents and
Bering Seas ................................................... 171
Audrey G. Kostianoy and Jacques C.J. Nihoul
Introduction ............................................... 171
Definitions ................................................ 174
Frontal zones in the Norwegian and Greenland seas .......... 176
Frontal zones in the Barents Sea ........................... 181
Frontal zones in the Bering Sea ............................ 184
Conclusions ................................................ 188
References ................................................. 189
How do the very small-sized aquatic microbes influence the
very large-scale biogeochemical cycles? ....................... 191
Louis Legendre and Richard В. Rivkin
Microbes in pelagic systems ................................ 191
Physiological characteristics, large standing stocks, and
unique positions of microbes in pelagic food webs .......... 192
Food-web functioning ....................................... 197
Biogeochemical roles of microbes ........................... 200
Environmental effects, including climate change ............ 201
General conclusions ........................................ 205
References ................................................. 206
Social, economic, legal and political issues of the Russian
Arctic ........................................................ 209
Igor S. Zonn
The Arctic Zone of Russia (AZR) ............................ 209
The population of Russian Arctic ........................... 211
Oil and gas of Russian Arctic .............................. 212
Russian Arctic economy ..................................... 214
Arctic regional direction .................................. 214
Legal regional of Arctic ................................... 215
Sectoral principle ...................................... 215
The second "Internationalization" principle that was
proposed still in the early 1970s is supported by USA,
Norway, Denmark ......................................... 216
Legal hot spots in Arctic .................................. 216
Struggle for the Lomonosov Ridge ........................... 218
Conclusions ................................................ 219
References ................................................. 220
Two US programs during IPY .................................... 221
William J. Wiseman, Jr., Martin O. Jeffries, Clarence
Pautzke and Francis Wiese
Introduction ............................................... 221
The Arctic Observing Network ............................... 222
Background .............................................. 222
The NSF Arctic Observing Network ........................ 223
International relationships ............................. 226
BEST-BSIERP ................................................ 227
Background .............................................. 227
Programmatic structure .................................. 228
Conclusions ................................................ 231
References ................................................. 231
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