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Number of results: 42
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Abstract

The chlorophyll a content was measured at 62 oceanographic stations. At each station samples were collected from eight standard depths between the water surface and 150 m. Integrated values (chlorophyll α mg/m2) are used in the presentation of the results and discussion. The recorded quantities of chlorophyll α were rather high, amounting to as much as 634 mg/m2. The areas with high chlorophyll a content (> 200 mg/m2) were located in the region of the Anvers Island and Brabant Island, on the shelf around Joinville Island and opposite the Antarctic Sound, close to Clarence Island and beyond the regions recommended in the BIOMASS-SIBEX programme to the east and south of the South Orkney Islands. In the acetonie extracts of photosynthetizing pigments large quantities of phytoxanthin were found using the TLC method, what precludes the use of the Lorenzen method for determination of chlorophyll α and its degradation products.

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Authors and Affiliations

Maciej Lipski
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Abstract

In the present report worked out in the form of a communication the general description of course and realization of the scientifical and technical programmes of the VIth Expedition to the Polish Polar Station in the Hornsund fiord on Spitsbergen is given. The details of the programme and results of investigations on particulat items constitute already or will constitute within the next time a subject of special publications.

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Authors and Affiliations

Jan Cisak
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Abstract

The succesive fifth whole-year research expedition stayed at the polar station of the Institute of Geophysics, Polish Academy of Sciences, in the Hornsund fiord from July 1982 to August 1973. Continuous observations as well as sejsmologic, magnetic and meteorological records, constituting continuation of the investigations started in summer 1978. were carried out by the wintering group of 8 men. Also separate research programmes: physics of atmosphere and ionosphere, sedimcntologo-oceanological, geomorphological and medical investigations, including observations of white bears, were realized. Many technical works, repairs and adaptations were carried out as well.

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Authors and Affiliations

Stanisław Rudowski
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Abstract

On the basis of selected mean monthly climatic elements from the 5-year period of whole-year expedition of the Polish Academy of Sciences to Spitsbergen climatic conditions in Hornsund are presented. Thermal seasons of year have been distinguished and the weather course in the annual cycle is discussed.

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Authors and Affiliations

Jan Rodzik
Waldemar Stepko
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Abstract

Height, frequency and spatial differentiation of atmospheric precipitation of the summer season for the period 1975-1982 are presented. Results of the respective investigations are compared with atmospheric precipitation in other areas of the western coast of Spitsbergen.

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Authors and Affiliations

Kazimierz Marciniak
Rajmund Przybylak
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Abstract

Works connected with execution of geodesic and photogrammetric surveys and with setting up maps in the scale of 1:5000 of environs of the Polish Polar Station on the Isbjörnhamna Bay and in the scale of 1:500 of the area covered with buildings of the Station are discussed.

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Authors and Affiliations

Stanisław Dąbrowski
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Abstract

On the basis of 35 one-hour series of the measurement of the wind velocity, read out every two minutes, the wind structure at the Arctowski Station, situated on Admiralty Bay, King George Island, was analysed. Very strong turbulence was found with air flow directions from over the area of the Island (S, SW. W and NW) and laminarity with directions from SE, E, NE and partly N, i.e. when the air flows from Admiralty Bay or from over the open waters of Bransfield Strait. The qustiness coefficient, the relationship between the maximum and mean velocities and the intensity of turbulence were determined for the two flow types. Two extremely different cases, in terms of flow character, were considered, by determining for them the distributions of instantaneous velocities and those of oscillations.

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Authors and Affiliations

Dominik Kowalski
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Abstract

This paper gives the daily values of chosen meteorological elements measured at the Polar Station of the Polish Academy of Sciences at Hornsund, during the Vlth Expedition of the Polish Academy of Sciences to Spitsbergen. The tables give average daily values of air temperature, relative humidity, atmospheric pressure, cloud amount and wind speed, daily amounts of precipitation and bright sunshine, extreme temperature values, maximum instantaneous wind speed and snow cover thickness for all the days in the period under study.

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Authors and Affiliations

Zbigniew Pietroń
Michał Ziemiański
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Abstract

The results and method of measurements of D, H and T carried out at Hornsund in the summer of 1979 are presented. The relative and absolute values of these elements are given in reduction to the Polish magnetic station at Hornsund. An initial evaluation of changes in the magnetic field from 1957 to 1979 is carried out.

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Authors and Affiliations

Andrzej Koblański
Stanisław Małoszewski
Janusz Śliz
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Abstract

Bunger Oasis (66° 15'S 100° 45'E), which lies in the deep interior of the Antarctic Continent, was the destination of the Polish Polar Expedition in 1978/1979. The area of Oasis which is free of ice, with a surface area of 1000 km2, its own hydrographic network and diversified relief of the terrain, has over the recent years been populated by live organisms, birds (cheek-bone and snow fulmar) and Wedell seal. In valleys and depressions of the terrain, traces of soil, mosses and lichens appear. The relief of the terrain of Oasis is undergoing continuous intensive change as a result of the natural effects of the Antarctic climate.

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Authors and Affiliations

Zbigniew Battke
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Abstract

The present paper contains the results of geomorphological investigations carried out by the author during the llnd Polar Expedition of the Scientific Society of the Students of the Department of Geography and Regional Studies, Warsaw University, to the northwest part of Nordenskiöld Land (West Spitsbergen) in the summer of 1980. The present elaboration discusses the glacial forms and deposits which arose during previous stays of the glacier on this area. Particular attention was paid to the disposition of erratics, which permitted the determination of the directions of the transgression of the young Quaternary glaciations.

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Authors and Affiliations

Andrzej Musiał
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Abstract

Investigations dealing with physico-chemical parameters of the Hornsund Fiord waters are analyzed. The development of hydrological conditions and influence of great water masses: warm West Spitsbergen Current and cold Sörkapp Current are presented.

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Authors and Affiliations

Sławomir Swerpel
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Abstract

The paper presents the method and results of measurements carried out at four secular points: P, — Wilczekodden, P2 — Hyttevika, P3 — Gashamna and P4 — Treskelodden. No essential changes were found in the distribution of the anomalous field ΔT with respect to the results of observations made in 1979.

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Authors and Affiliations

Andrzej Koblański
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Abstract

This paper presents the results of magnetic mapping carried out in the area of the metamorphic series of Ariekammen and Skoddefjellet. On the basis of qualitative interpretation of measurements a number of anomalous zones were distinguished, whose position can be correlated with local changes in mineralitation and polymetallic ore content in the Fuglebergsletta area. The SE-NW orientation, skew to the almost meridional run of the layers of slates and marbles making up the metamorphic complex, dominates in the course of the anomalous zones.

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Authors and Affiliations

Andrzej Koblański
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Abstract

An attempt was made to determine the vertical momentum and heat exchange in the near-ground atmosphere layer in the specific conditions of a sub-Antarctic island. For this purpose, some of the results of the measurements of temperature and wind speed carried out at the levels 10, 2, 0.5 and 0.05 m, during the IVth Antarctic Expedition of the Polish Academy of Sciences in March 1980, were used. The vertical gradients of the two elements and the wind stress and the heat flux in the layers under study, were calculated.

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Authors and Affiliations

Barbara Cygan
Danuta Wielbińska
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Abstract

In the summer 1980-1981, in the Antarctic areas, in the coastal zone of Admiralty Bay (King George Island), complex measurements were carried out in order to investigate the proportion of wind gustiness in the processes generating marine spray systems and stimulating aerosol mass exchange between the sea and the atmosphere.

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Authors and Affiliations

Czesław Garbalewski
Roman Marks

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