Предисловие	5
	А.О.Андреев, М.В.Дукальская, С.В.Фролов.  Из истории Международного полярного года (.pdf)	7
	И.Е.Фролов, В.Т.Соколов, И.М.Ашик.  Основные итоги и предварительные научные результаты двадцать первого (август–октябрь 2004 г.) и двадцать третьего (июль–сентябрь 2005 г.) рейсов научно-экспедиционного судна «Академик Федоров»  (.pdf)	18
	И.Е.Фролов, И.М.Ашик, В.Т.Соколов.  Гидрофизические характеристики придонного слоя глубоководных районов Арктического бассейна Северного Ледовитого океана  (.pdf)	35
	А.Е.Новихин, В.М.Смагин.  Влияние притока атлантических вод на вертикальное распределение биогенных элементов в Арктическом бассейне  (.pdf)	43
	В.Ф.Радионов, Е.И.Александров, Н.Н.Брязгин.  Метеорологические условия в околополюсном районе Северного Ледовитого океана (по данным наблюдений на дрейфующих станциях «Северный полюс-32, 33, 34»)  (.pdf)	50
	В.Ф.Радионов, Е.Н.Русина, Е.Е.Сибир, А.М.Шаламянский.  Особенности общего содержания озона в северной и южной полярных областях  (.pdf)	64
	В.Н.Смирнов.  Особенности динамики и механики деформирования льда Арктического бассейна  (.pdf)	73
	П.В.Богородский, А.В.Марченко, А.В.Пнюшков.  Основные закономерности замерзания снежниц на многолетнем льду Арктического бассейна (по данным 23-го рейса НЭС «Академик Федоров»)  (.pdf)	85
	О.М.Андреев, Б.В.Иванов.  Параметризация вертикального распределения солености однолетнего морского льда для задач термодинамического моделирования в Арктике  (.pdf)	99
	В.П.Шевченко, А.П.Лисицын, Р.Штайн, Н.В.Горюнова, А.А.Клювиткин, М.Д.Кравчишина, М.Кривс, А.Н.Новигатский, В.Т.Соколов, А.С.Филиппов, Х.Хаас.  Распределение и состав нерастворимых частиц в снеге Арктики  (.pdf)	106
	В.В.Харитонов, В.А.Морев, В.Л.Кузнецов.  О результатах исследования эволюции консолидированного слоя молодого тороса в высокоширотной арктической экспедиции на дрейфующей станции «Северный полюс-33»  (.pdf)	119
	С.В.Фролов, А.Э.Клейн, В.Ю.Третьяков.  Результаты использования цифрового телевизионного комплекса для измерений толщины льда в Арктическом бассейне в 2004–2005 гг  (.pdf)	123
	С.В.Фролов, А.В.Юлин.  Специализированное гидрометеорологическое обеспечение высокоширотных рейсов НЭС «Академик Федоров» в 2000, 2004–2005 гг.  (.pdf)	128
	В.И.Бессонов, С.В.Фролов.  Технологии поиска ледяных полей для организации дрейфующих станций в 2004–2005 гг.  (.pdf)	140
	И.Е.Фролов, З.М.Гудкович, В.П.Карклин, Е.Г.Ковалев, В.М.Смоляницкий.  Климатические изменения ледовых условий в арктических морях Евразийского шельфа  (.pdf)	149

	Preface	5
	А.O.Andreev, М.V.Dukalskaya, S.V.Frolov.  From history of the international polar year	7
	23 апреля 2007 г The paper contains a brief historical overview of carrying out one of the most outstanding scientific projects – the International Polar Year. The characteristics of scientific programs, expeditions and results of every project are presented. Special attention is paid to the contribution of national studies.
	I.E.Frolov, V.T.Sokolov, I.M.Ashik.  Main resume and preliminary scientific results of 21st (August–October, 2004) and 23d (July–September, 2005) voyages of RV «Akademik Fedorov»	18
	Поступила 14 мая 2007 г. I.E.FROLOV, V.T.SOKOLOV, I.M.ASHIK MAIN RESUME AND PRELIMINARY SCIENTIFIC RESULTS OF 21ST (AUGUST–OCTOBER, 2004) AND 23RD (JULY–SEPTEMBER, 2005) VOYAGES OF RV «AKADEMIK FEDOROV» The basic purposes and tasks of the highlatitude expeditions taking place in 2004 and 2005 on board of RV «Akademik Fedorov» are briefly stated in paper; data on area of expeditions’ researches, main types of carried out observations and measurements are given, preliminary scientific results of researches are presented.
	I.E.Frolov, I.M.Ashik, V.T.Sokolov.  Hydrophysical parameters of Arctic deep sea near-bottom layers in the Arctic Ocean	35
	Поступила 18 августа 2006 г. I.E.FROLOV, I.M.ASHIK, V.T.SOKOLOV HYDROPHYSICAL PARAMETERS OF ARCTIC DEEP SEA NEAR-BOTTOM LAYERS IN THE ARCTIC OCEAN New data on vertical distribution of hydrological characteristics of seawater in the central part of the Arctic basin are presented in paper. The data are obtained by results of expeditions’ researches on board of RV «Akademik Fedorov» during the 2005 high latitude research voyage. Results of the data analysis allow specifying the general representations about deep waters’ vertical stratification in the Arctic basin. At all the stations executed in these areas, reduction of water temperature up to horizon of temperature minimum is distinctly traced; whereas water temperature increase takes part below that minimum. The most probable heat source determining the Arctic basin’s deep-water warm layer formation can be geothermal processes taking place in interior lithosphere.
	A.E.Novikhin, V.M.Smagin.  Influence of the Atlantic waters inflow on the nutrients vertical distribution in the Arctic Ocean	43
	Поступила 12 марта 2007 г. A.E.NOVIKHIN, V.M.SMAGIN INFLUENCE OF THE ATLANTIC WATERS INFLOW ON THE NUTRIENTS VERTICAL DISTRIBUTION IN THE ARCTIC OCEAN The Atlantic waters inflowing to the Arctic Ocean at present days have lower oxygen and silicates concentrations together with higher temperature. Analysis of the transects in the Kara Sea continental slope region has revealed an altering of nutrients vertical distribution. This is an effect of the Atlantic waters inflow which have higher temperature in comparison with the climatic mean since 1975. This warming is more evident since 1992. Also, there is a displacement process of East-Siberian Sea water masses from the north-eastern part of the Laptev Sea. Further increasing of the Atlantic waters influence could cause the vertical hydrochemical structure reconstruction in the Siberian continental slope region.
	V.F.Radionov, Ye.I.Aleksandrov, N.N.Bryazgin.  Meteorological conditions in circumpolar area of the Arctic Ocean (results from the drifting stations «North Pole-32, 33, 34»)	50
	Поступила 6 апреля 2006 г. V.F.RADIONOV, YE.I.ALEKSANDROV, N.N.BRYAZGIN METEOROLOGICAL CONDITIONS IN CIRCUMPOLAR AREA OF THE ARCTIC OCEAN (RESULTS FROM THE DRIFTING STATIONS «NORTH POLE-32, 33, 34») New information on meteorological conditions in the central part of the Arctic Basin is presented. These results are received on the base of regular meteorological observations at drifting stations «North Pole-32, 33, 34» in 2003–2006. New data are compared with regime parameters of previous decades, and with the data observed in circumpolar area 100 years ago during the drift of vessel «Fram». Results of meteorological observations at these drifting stations confirmed, that now in the Central Arctic Basin air temperature is higher in comparison with air temperature in previous decades. This increase of temperature started in the middle of 1960th and now temperature increasing is comparable with warming of the Arctic in 1930th.
	V.F.Radionov, E.N.Rusina, E.E.Sibir, A.M.Shalamyansky.  Features of the total ozone content in Northern and Southern polar areas	64
	Поступила 6 апреля 2006 г. V.F.RADIONOV, E.N.RUSINA, E.E.SIBIR, A.M.SHALAMYANSKY FEATURES OF THE TOTAL OZONE CONTENT IN NORTHERN AND SOUTHERN POLAR AREAS The comparative analysis results of time variation of total ozone at the Russian stations of North and South Polar Regions, drifting stations «North Pole-32, 33» and RV «Akademik Fedorov» for 1973–2005 are represented. The particularities of the total ozone variability within year and common measurement period in the Arctic and Antarctic have been determined. At the most stations in both polar regions the negative trends of total ozone mean year values have been recorded. In South Polar Region this trend is pronounced sharper. In North Polar Region the negative trend of total ozone mainly is noticed at the stations of the western part of the Arctic.
	V.N.Smirnov.  The features of dynamics and deformation mechanics of the Arctic Basin ice	73
	Поступила 24 апреля 2006 г. V.N.SMIRNOV THE FEATURES OF DYNAMICS AND DEFORMATION MECHANICS OF THE ARCTIC BASIN ICE The results of the research dynamics features and deformation mechanics of the ice cover of the Arctic Ocean are presented. The main attention is paid to the description physical-mechanical phenomena of the local a mesoscale. The hierarchic character of the failure and forming fractal structure of the Arctic Basin ice cover are interconnected and are a direct consequence of the quasi-static cyclic processes in the system atmosphere–ice–ocean. It can be caused by tides, atmosphere pressure gradients, surface and internal waves, non-linear self-oscillating processes and other. The value of the spatial-temporal correlation of the processes consists in the potential possibility to predict the change in time of the some space of the ice cover from the previous system evolution on the smaller scale level. The properties of the self-similarity and self-organization can serve a prognostic indicator at the large-scale monitoring of the ice cover dynamic state. The study of the considered phenomena is important for solving climate and weather prediction tasks and for navigation safety and development of the shelf deposits.
	P.V.Bogorodsky, A.V.Marchenko and A.V.Pnyushkov.  The main features of melt ponds freezing on multy-year Arctic sea ice (by observations during the 23-rd cruise of RV «Akademik Fedorov»)	85
	Поступила 24 декабря 2006 г. P.V.BOGORODSKY, A.V.MARCHENKO AND A.V.PNYUSHKOV THE MAIN FEATURES OF MELT PONDS FREEZING ON MULTY-YEAR ARCTIC SEA ICE (BY OBSERVATIONS DURING THE 23-RD CRUISE OF RV «AKADEMIK FEDOROV») The results of Arctic melt ponds observations performed in the July-September 2005 during the 23-rd cruise of RV «Akademik Fedorov» and also the thermodynamic model of their freezing are presented. The presence of meltwater layers, even with low salinity, is shown to be a qualitative element of sea ice cover which defines its growing pattern.
	O.M.Andreev, B.V.Ivanov.  Parameterization of first-year sea ice vertical salinity distribution for problems of thermodynamic modeling in Arctic regions	99
	Поступила 28 апреля 2006 г. O.M.ANDREEV, B.V.IVANOV PARAMETERIZATION OF FIRST-YEAR SEA ICE VERTICAL SALINITY DISTRIBUTION FOR PROBLEMS OF THERMODYNAMIC MODELING IN ARCTIC REGIONS The developed parameterization of evolution of first-year sea ice vertical salinity distribution in the Arctic basin is submitted. Comparison of the profiles received with the help of suggested parameterization and real vertical distributions of sea ice salinity is executed. On the basis of comparison this parameterization is recommended to application at thermodynamic modeling of first-year sea ice in Arctic regions.
	V.P.Shevchenko, A.P.Lisitzin, R.Stein, N.V.Goriounova, A.A.Klyuvitkin, M.D.Kravchishina, M.Kriews, A.N.Novigatsky, V.T.Sokolov, A.S.Filippov, C.Haas.  Distribution and composition of particulate matter in the Arctic snow	106
	19.04.2006 V.P.SHEVCHENKO, A.P.LISITZIN, R.STEIN, N.V.GORIOUNOVA, A.A.KLYUVITKIN, M.D.KRAVCHISHINA, M.KRIEWS, A.N.NOVIGATSKY, V.T.SOKOLOV, A.S.FILIPPOV, C.HAAS DISTRIBUTION AND COMPOSITION OF PARTICULATE MATTER IN THE ARCTIC SNOW The results of studies of particulate matter distribution and composition in the Arctic snow, carried out by authors in 1994–2005, and literature data have been summarized. It is shown that background concentration of particles >0,45 μm in the Arctic snow varies from 0,2 to 3 mg/l, that is significantly higher than suspended particulate matter concentrations in the sea water in the same region. Particulate matter in the fresh snow is represented mainly by mineral grains and biogenic particles (spores, pollens, fibers and diatoms) of pelitic and aleuritic grain size. Soot particles and combustion spheres with the diameter 0,5–5 μm have been found in the most part of the samples. Calculations on the base of our data show that the aeolian input of particulate matter to the total sedimentary matter supply to the Arctic Ocean is close to the riverine input (outside the marginal filters). In general, the aeolian input in the sedimentation in the Arctic Ocean is about 10 %.
	V.V.Kharitonov, V.A.Morev, V.L.Kuznetsov.  On the results of investigating the evolution of the young ice ridge consolidated layer during the high-latitudinal Arctic expedition at the «North Pole-33» drifting station	119
	20.02.2007 V.V.KHARITONOV, V.A.MOREV, V.L.KUZNETSOV ON THE RESULTS OF INVESTIGATING THE EVOLUTION OF THE YOUNG ICE RIDGE CONSOLIDATED LAYER DURING THE HIGH-LATITUDINAL ARCTIC EXPEDITION AT THE «NORTH POLE-33» DRIFTING STATION Main factor influencing the formation of the ice ridge consolidated layer is a sum of degree-days of frost. The experiment aimed at studying the evolution of the consolidated layer of new ice ridge formed on multiyear ice is described. It is noted that the consolidated layer of ice ridge grows irregularly. The consolidated layer thickness increases according to the power law until water filling the space between the ice ridge keel blocks freezes. Then it sharply increases by the value, equal to the thickness of the ice block located below the consolidated layer.
	S.V.Frolov, A.E.Klein, V.Yu.TretIakov.  Results of using a digital TV complex for ice thickness measurements in the Arctic Basin in 2004–2005	123
	13.04.2006 S.V.FROLOV, A.E.KLEIN, V.YU.TRETIAKOV RESULTS OF USING A DIGITAL TV COMPLEX FOR ICE THICKNESS MEASUREMENTS IN THE ARCTIC BASIN IN 2004–2005 The article presents the testing results and a description of the digital TV complex, developed at the Arctic and Antarctic Research Institute for measuring ice thickness from board the ship. Main functions of the computer software, applied for operational processing of the measurement results are shown. A brief analysis of the measurement data obtained during the expedition «Arktika-2005» is performed. It is concluded that the digital TV complex is perspective for obtaining unique representative data on the ice thickness distribution in the Arctic Basin and the ice-covered seas.
	S.V.Frolov, A.V.Yulin.  Special hydrometeorological providing for high latitude voyages of RV «Akademik Fedorov» in 2000, 2004–2005 years	128
	13.04.2006 S.V.FROLOV, A.V.YULIN SPECIAL HYDROMETEOROLOGICAL PROVIDING FOR HIGH LATITUDE VOYAGES OF RV «AKADEMIK FEDOROV» IN 2000, 2004–2005 YEARS The system of special hydrometeorological support (SHMS), organized in the Arctic and Antarctic Research Institute (AARI) for high-latitudinal recent expeditions in the Arctic Basin onboard RV «Akademik Fedorov», is presented. Organization and structure of the system, types of information and estimated its quality are analyzed in present work. It showed that special hydrometeorological support of the navigation in the Arctic Basin and ice-covered seas should by systems. The Arctic and Antarctic Research Institute is the integrated informational center, meetings the requirements to compile this support.
	V.I.Bessonov, S.V.Frolov.  Some technologies of looking for ice fields for drift science station organization in 2004–2005 years	140
	13.04.2006 V.I.BESSONOV, S.V.FROLOV SOME TECHNOLOGIES OF LOOKING FOR ICE FIELDS FOR DRIFT SCIENCE STATION ORGANIZATION IN 2004–2005 YEARS Present work is devoted to experience of reliable ice fields searching for the drifting stations «North Pole-33» (2004) and «North Pole-34» (2005), using of satellite information. Technological scheme of searching and monitoring the ice fields are determined. It is difficult to estimate ice cover characteristics uniquely during the maximal ice melting stage in the high latitudes. Therefore, interpretation of the satellite information requires additional ground truth measurements. The measurements can be carried out on the drifting North Pole stations.
	I.E.Frolov, Z.M.Gudkovich, V.P.Karklin, Ye.G.Kovalev, V.M.SmolYanitsky.  Climatic changes of ice conditions in the Arctic seas of the Euroasian shelf	149
	23.03.2007 I.E.FROLOV, Z.M.GUDKOVICH, V.P.KARKLIN, YE.G.KOVALEV, V.M.SMOLYANITSKY CLIMATIC CHANGES OF ICE CONDITIONS IN THE ARCTIC SEAS OF THE EUROASIAN SHELF Paper presents analysis of the air temperature variability in the Arctic region and other climatic zones of the Northern hemisphere during the 20th – beginning of 21st centuries. It is shown that perennial changes in air temperature were formed by linear trends as well as long-term (climatic) oscillations with periods about 10, 20 and 50–60 years. Similar cyclicity was revealed in the patterns of air pressure which is characterized by decrease of air pressure during the epochs of warming in high latitudes and points out to increase of zonal transfer in the atmosphere of mid-latitudes. Corresponding variations in the Arctic ice cover extent, thickness, total concentration, general drift patterns and position of old ice boundaries as well as properties of the Arctic Basin water masses and volume of Arctic river discharge were also found out. Analysis carried out by the authors allows to state that the basic causes of the Arctic climate change have the natural origin and potential magnitude of several orders more than that for the level of anthropogenic impact on the climate. Estimates of possible changes of Arctic air temperature and ice cover propagation area for the 21st century is given on a basis of the revealed stable cyclic oscillations. According to that estimate the cyclic form of variations in air temperature and ice cover extent will be preserved and necessity to maintain the icebreaker fleet to support human activities within the Arctic seas will remain correspondingly