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  • 1
    Series available for loan
    Series available for loan
    Oceanographic data in the Greenland Sea and around Svalbard in 1991-1993 (1998)
    Tokyo : National Inst. of Polar Research
    Associated volumes
    Details Availability
    Call number: ZSP-589-3
    In: NIPR Arctic Data Reports
    Type of Medium: Series available for loan
    Pages: 46 S. : überw. graph. Darst.
    Series Statement: NIPR Arctic Data Reports 3
    Location: AWI Reading room
    Branch Library: AWI Library
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  • 2
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    Oceanographic data in the Greenland Sea and around Svalbard in 1991-1993 (2008)
    PANGAEA
    In:  Supplement to: Ushio, Shuki; Ito, Hajime; Ono, Nobuo (1998): Oceanographic data in the Greenland Sea and around Svalbard in 1991-1993. NIPR Arctic Data Reports, National Institute of Polar Research, Tokyo, 3, 46 pp, hdl:10013/epic.30872.d001
    Details
    Publication Date: 2023-03-02
    Description: The Arctic Ocean is connected with the North Atlantic Ocean by the Fram Strait between Greenland and Svalbard. The strait is located in the northern part of the Greenland Sea. In the eastern part of the strait, warm saline water flows northward as the West Spitsbergen Current; while in the western part, cold less-saline water flows southward as the East Greenland Current. The northwestern part of the Greenland Sea is normally covered with sea ice even in summer. Furthermore, this region is regarded as a major area where the Arctic sea ice is discharged into mid latitude oceans. Thus, this area plays an important role in heat and salt exchange processes in the Arctic marine system. The reveal exchange processes of water masses and ocean-atmosphere interaction in high-latitude oceans, a number of international research programs have been focused on the Greenland Sea and its surrounding waters. As one of the international Arctic research programs, oceanographic studies have been executed in cooperation with the Norsk Polarinstitutt and other institutes under the leadership of the National Institute of Polar Research since 1991. Japanese scientists have been carrying out field observations in and around Svalbard. The observations include not only physical measurements but also biological surveys. This report presents physical oceanographic data obtained in the Greenland Sea in 1992 and 1993, and data around Svalbard from 1991 to 1993.
    Keywords: around Svalbard; Boat; CT; CTD/Rosette; CTD-RO; KF1991; KF1991_A0; KF1991_A1; KF1991_A2; KF1991_A3; KF1991_A4; KF1991_A5; KF1991_A6; KF1991_A7; KF1991_M1; KF1991_M2; KF1991_M3; KF1991_N1; KF1991_T1; KF1991_T2; KF1991_T3; KF1991_T4; KF1991_T5; KF1991_T6; KF1991_T7; KF1992; KF1992_1; KF1992_10; KF1992_2; KF1992_3; KF1992_4; KF1992_5; KF1992_6; KF1992_7; KF1992_8; KF1992_9; KF1993; KF1993_1; KF1993_10; KF1993_2; KF1993_3; KF1993_4; KF1993_5; KF1993_6; KF1993_7; KF1993_9; KF1993_M; KF1993_Y; Kongsfjorden, Spitsbergen, Arctic; LA92; LA92-track; LA93/4; LA93/4-track; Lance; National Polar Research Programme of Japan; NIPR; Origo; Polarstar; SVALB1993_1; SVALB1993_10; SVALB1993_11; SVALB1993_12; SVALB1993_13; SVALB1993_14; SVALB1993_15; SVALB1993_16; SVALB1993_17; SVALB1993_18; SVALB1993_19; SVALB1993_2; SVALB1993_20; SVALB1993_21; SVALB1993_22; SVALB1993_23; SVALB1993_24; SVALB1993_25; SVALB1993_26; SVALB1993_27; SVALB1993_28; SVALB1993_29; SVALB1993_3; SVALB1993_30; SVALB1993_31; SVALB1993_32; SVALB1993_33; SVALB1993_35; SVALB1993_36; SVALB1993_37; SVALB1993_38; SVALB1993_39; SVALB1993_40; SVALB1993_41; SVALB1993_42; SVALB1993_43; SVALB1993_44; SVALB1993_45; SVALB1993_46; SVALB1993_47; SVALB1993_48; SVALB1993_49; SVALB1993_5; SVALB1993_50; SVALB1993_51; SVALB1993_52; SVALB1993_53; SVALB1993_54; SVALB1993_55; SVALB1993_56; SVALB1993_57; SVALB1993_58; SVALB1993_6; SVALB1993_7; SVALB1993_8; SVALB1993_9; SVALB1993a; SVALB1993a-track; SVALB1993b; SVALB1993b-track; Underway cruise track measurements
    Type: Dataset
    Format: application/zip, 101 datasets
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  • 3
    Electronic Resource
    Electronic Resource
    Coastal polynyas off East Queen Maud Land observed from NOAA AVHRR data (1996)
    Springer
    Journal of oceanography 52 (1996), S. 389-398 
    Details
    ISSN: 1573-868X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Coastal polynyas off East Queen Maud Land in Antarctica are examined using NOAA AVHRR infrared data. From image analyses, two locations of coastal polynyas in this region are identified; one in Breid Bay and the other along the shelf break. The areal coverage of the Breid Bay polynya is significantly related to the strength of katabatic winds, which maintain their strength over the coastal sea due to land topography favoring for their confluence, thereby being capable of removing newly formed ice. Land fast ice in the eastern part of the bay also plays an additional role in the formation mechanism. It is also found that the areal coverage of coastal polynyas in this region fluctuate coherently. Moreover, these fluctuations correspond to the synoptic index, which measures the strength of the offshore wind, with their peaks closely associated with the areal peaks. These facts strongly suggest the influence of synoptic scale weather on the formation and maintenance of polynyas in this region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02235932
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    Paper (German National Licenses)
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  • 4
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    Coastal polynyas off East Queen Maud Land observed from NOAA AVHRR data (1996)
    Springer
    Details
    Publication Date: 1996-05-01
    Print ISSN: 0916-8370
    Electronic ISSN: 1573-868X
    Topics: Geosciences , Physics
    Published by Springer
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  • 5
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    Measurements of salinity and volume of brine excluded from growing sea ice (1983)
    American Geophysical Union
    Details
    Publication Date: 1983-01-01
    Print ISSN: 0148-0227
    Electronic ISSN: 2156-2202
    Topics: Geosciences
    Published by American Geophysical Union
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  • 6
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    Surface Layer Salinity of Young Sea Ice (1985)
    Cambridge University Press
    Details
    Publication Date: 1985-01-01
    Description: The high-salinity surface layer of young sea ice was subjected to field and laboratory experiments. Artificial pools, in which young ice was formed, were opened within a fast-ice sheet in the Saroma lagoon, Hokkaido, in February of 1983 and 1984. The salinity of 1 mm thick surface layer of the young ice was observed as high as 42.4‰, which exceeds the seawater salinity of 31‰. The surface salinity increased with rising surface temperature. When a load was placed on the fast ice near the pool, seeped brine of salinity 72.5‰ was observed on the surface of the young ice; and when the load was removed, the brine disappeared. Meanwhile, brine permeabilities, both upward and downward, were measured in the laboratory, Both permeabilities decreased logarithmically with lowering surface temperature. A remarkable anisotropy was observed: the upward permeability was greater than downward, and the ratio of upward to downward premeability increased with lowering surface temperature from 5 at -3 °C to 33 at -5°C. Upward and downward permeabilities in ms-1 were respectively 1x10-4 and 2x10-5 at -3°C, 2x10-5 and 6x10-7 at -5°C, and at -10°C upward permeability was 3x10-7.
    Print ISSN: 0260-3055
    Electronic ISSN: 1727-5644
    Topics: Geography , Geosciences
    Published by Cambridge University Press on behalf of International Glaciological Society.
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  • 7
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    Theoretical approach describing the thermal regime of snow-covered sea ice (1993)
    Cambridge University Press
    Details
    Publication Date: 1993-01-01
    Description: As the greater part of sea-ice area is covered with snow, the thermal regime of sea ice is characterized by the thermal behavior of snow-covered sea ice. In this paper the thermal regime of snow-covered sea ice is quantitatively investigated with a one-dimensional non-linear boundary model which contains: compaction of snow cover; internal absorption of solar radiation; evaporation–condensation within snow cover; equilibrium phase change of brine within sea ice; and vertical oceanic heat flux from seawater to ice. Penetration of air temperature oscillations into the snow-covered sea ice increases remarkably with increasing snow density. As internal melting within the snow-covered sea ice appears with increasing solar radiation, the rise in air temperature and increase of solar radiation in the springtime produce a corresponding change in the thermal state of sea ice, causing a drastic retreat of sea-ice cover. A case study for warm sea ice is presented describing the thermal state during the melting season.
    Print ISSN: 0260-3055
    Electronic ISSN: 1727-5644
    Topics: Geography , Geosciences
    Published by Cambridge University Press on behalf of International Glaciological Society.
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  • 8
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    Surface Layer Salinity of Young Sea Ice (1985)
    Cambridge University Press
    Details
    Publication Date: 1985-01-01
    Description: The high-salinity surface layer of young sea ice was subjected to field and laboratory experiments. Artificial pools, in which young ice was formed, were opened within a fast-ice sheet in the Saroma lagoon, Hokkaido, in February of 1983 and 1984. The salinity of 1 mm thick surface layer of the young ice was observed as high as 42.4‰, which exceeds the seawater salinity of 31‰. The surface salinity increased with rising surface temperature. When a load was placed on the fast ice near the pool, seeped brine of salinity 72.5‰ was observed on the surface of the young ice; and when the load was removed, the brine disappeared. Meanwhile, brine permeabilities, both upward and downward, were measured in the laboratory, Both permeabilities decreased logarithmically with lowering surface temperature. A remarkable anisotropy was observed: the upward permeability was greater than downward, and the ratio of upward to downward premeability increased with lowering surface temperature from 5 at -3 °C to 33 at -5°C. Upward and downward permeabilities in ms-1 were respectively 1x10-4 and 2x10-5 at -3°C, 2x10-5 and 6x10-7 at -5°C, and at -10°C upward permeability was 3x10-7.
    Print ISSN: 0260-3055
    Electronic ISSN: 1727-5644
    Topics: Geography , Geosciences
    Published by Cambridge University Press on behalf of International Glaciological Society.
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  • 9
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    Movements of Marginal Pack Ice Off the Okhotsk Sea Coast of Hokkaido (1985)
    Cambridge University Press
    Details
    Publication Date: 1985-01-01
    Description: Movement of pack ice off the Okhotsk Sea coast of Hokkaido was investigated using combinations of sea ice radar photographs and Landsat MSS imageries. The sea ice radar network, consisting of three C-band (5.54 GHz) radar stations, covers an area of about 60 km across and 250 km along the coast. As radar echoes display not the shape of ice floes but the roughness of the ice field, the shapes of floes were drawn on a radar photograph overlaid upon a simultaneous Landsat Fig. 1. The coverage of the sea ice radar network. imagery. Each floe was then traced on the sequential photographs of radar display. The path of each floe frequently indicated a trochoidal oscillation of 18-hour period which is close to the inertial period of this area-Such paths were examined as representing the motion of inertial circle transported upon a long-period movement. The parameter v/U indicates the magnitude of meandering movement of an ice floe within the inertial period, where v is the circumferential velocity of inertial circle motion and U is the average velocity of a main drift in the inertial period. Values of v/U were obtained in a wide range from 0.4 to 8.3 for 18-hour trochoidal paths sampled.
    Print ISSN: 0260-3055
    Electronic ISSN: 1727-5644
    Topics: Geography , Geosciences
    Published by Cambridge University Press on behalf of International Glaciological Society.
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  • 10
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    Movements of Marginal Pack Ice Off the Okhotsk Sea Coast of Hokkaido (1985)
    Cambridge University Press
    Details
    Publication Date: 1985-01-01
    Description: Movement of pack ice off the Okhotsk Sea coast of Hokkaido was investigated using combinations of sea ice radar photographs and Landsat MSS imageries. The sea ice radar network, consisting of three C-band (5.54 GHz) radar stations, covers an area of about 60 km across and 250 km along the coast. As radar echoes display not the shape of ice floes but the roughness of the ice field, the shapes of floes were drawn on a radar photograph overlaid upon a simultaneous Landsat Fig. 1.The coverage of the sea ice radar network. imagery. Each floe was then traced on the sequential photographs of radar display. The path of each floe frequently indicated a trochoidal oscillation of 18-hour period which is close to the inertial period of this area-Such paths were examined as representing the motion of inertial circle transported upon a long-period movement. The parameter v/U indicates the magnitude of meandering movement of an ice floe within the inertial period, where v is the circumferential velocity of inertial circle motion and U is the average velocity of a main drift in the inertial period. Values of v/U were obtained in a wide range from 0.4 to 8.3 for 18-hour trochoidal paths sampled.
    Print ISSN: 0260-3055
    Electronic ISSN: 1727-5644
    Topics: Geography , Geosciences
    Published by Cambridge University Press on behalf of International Glaciological Society.
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