Fault Mechanisms of Finnish Earthquakes, Crustal Stresses and Faults

Ragnar Slunga and Tellervo Ahjos

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Remarks on the Magnitude Determination for Nurmijärvi, Kajaani and Kevo Seismograph Stations Based on the Rayleigh Waves

B. Guterch, W. A. Jankowska, K. Arhe and H. Korhonen

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Calculation of Electric and Magnetic Fields due to an Electojet Current System above a Layered Earth

Lasse Häkkinen and Risto Pirjola

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Homogeneity of Magnetic Variations around the Nurmijärvi Observatory

Jerzy Jankowski, Risto Pirjola and Tomasz Ernst

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Infiltration and Variation of Soil Moisture in a Sandy Aquifer

Risto Lemmelä and Sirkka Tattari

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Seasonal and Long-Term Variation of Groundwater Levels in Sandy Aquifers in Southern Finland

Risto Lemmelä and Esko Kuusisto

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The Date of Break-Up of Lake Ice as a Climatic Index

Kimmo Ruosteenoja

PDF (689 kB)

Doppler Radar Observations of Horizontal Roll Vortices in Finland

Timo Puhakka and Pirkko Saarikivi

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Can We Calibrate Radar with Raingauges ?

Jarmo Koistinen and Timo Puhakka

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On the Contribution of Sea Ice Ridges into the Mass of Ice in the Gulf of Bothnia

Wlodzimierz P. Zakrzewski

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Spectral Studies of Time Series of the aa Index

Jari Mannermaa and Juhani Oksman

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Ionization Processes in the Lower Ionosphere during the Geomagnetic Storm on 16-17 December 1971

O. I. Shumilov, E. V. Vashenjuk, T. Turunen, H. Ranta and A. Ranta

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