H.B. Granberg and M. Leppäranta,
Observations of sea ice ridging in the Weddell Sea,
J Geophys Res 104 (C11) (1999) 25735-25745
M. Granskog,
Baltic Sea ice as a medium for storage of particulate matter and elements,
ICES Journal of Marine Science 56 (1999) Supplement, s. 172-175
L.J. Pesonen, S. Elo, M. Lehtinen, T. Jokinen, R. Puranen, L. Kivekäs,
Lake Karikkoselkä impact structure, central Finland: New geophysical and petrographic results. Large meteorite impacts and planetary evolution 2. - Boulder CO : The Geological Society of America, 1999 (Special paper; 339) ISBN 0-8137-2339-6. s. 131-147
H. Arst and A. Herlevi,
Investigation of Estonian and Finnish lakes by optical measurements in 1992-97,
Proceedings of the Estonian Academy of Sciences. Biology. Ecology 48 (1999) 5-24
A. Herlevi and T. Kutser,
Field performance of the ST 1000 spectrometer in passive optical remote sensing of water bodies,
Proceedings of the Estonian Academy of Sciences. Biology. Ecology 48 (1999) 37-45
A. Herlevi and H. Virta,
Results of light absorption/attenuation measurements in Finnish and Estonian lakes in summer 1997,
Proceedings of the Estonian Academy of Sciences. Biology. Ecology 48 (1999) 46-62
J. Virta and A. Herlevi,
Correcting errors associated with underwater spectral irradiance measurements,
Proceedings of the Estonian Academy of Sciences. Biology. Ecology 48 (1999) 143-148
A. Reinart and A. Herlevi,
Diffuse attenuation coefficient in some Estonian and Finnish lakes,
Proceedings of the Estonian Academy of Sciences. Biology. Ecology 48 (1999) 267-283
M. Leppäranta,
Ice thickness mapping in the Baltic Sea,
Ibid., s. 16-25
R.V. Goldstein, M. Osipenko and M. Leppäranta,
Echelons of faults in an ice cover,
POAC 9: Proceedings of the 15th International Conference on Port and Ocean Engineering under Arctic Conditions Espoo, Finland, August 23-27, 1999. - Espoo : Helsinki University of Technology, 1999 ISSN 1456-3045 ISBN 951-22-4617-1, pp. 336-342
Z.H. Zhang, M. Leppäranta, J. Haapala and T. Stipa,
Numerical simulation of sea ice drift in the Bay of Bothnia,
Ibid., Vol. 2, pp. 488-497
M. Leppäranta,
Investigations of the physics of the winter season in the Baltic Sea,
Problemy fizyczne ekologii wód naturalnych : Konferencja ogólnopolska Szczecin, 14-15 wrzesnia 1998 roku. - Szczecin : Uniwersytet Szczecinski, 1999 (Materialy konferencje : Uniwersytet Szczecinski 1232-5848; nr 36). pp. 25-37
A. Omstedt and M. Leppäranta,
On the Baltic Sea response to climate change: model implications,
Publications of Second Workshop on the Baltic Sea Ice Climate. - Tartu, 1999 (Publicationes instituti geographici Universitatis Tartuensis 1406-3069; 84) ISBN 9985-4-0025-9, pp. 117-124
Z. Zhang, H. Wu and M. Leppäranta,
Numerical simulations on the wintertime circulation in ice-covered Bohai Sea,
Ibid., pp. 125-136
Z. Zhang, M. Leppäranta and H.H. Shen,
Numerical test on applying a transition criterion in the marginal ice zone dynamics, Ibid., pp. 168-179
J. Haapala,
Modelling of the Baltic Sea ice thickness distribution,
Workshop on modelling of the marine-atmospheric boundary layer, Helsinki, 7-8 December 1998: proceedings. - Helsinki : Finnish Institute of Marine Research, 1999 (Meri) ISSN 1238-5328 ISBN 951-53-2078-X. 40 (1999), s. 43-45
J. Haapala,
Present status of the Baltic Sea ice data bank - IDA,
Publications of Second Workshop on the Baltic Sea Ice Climate. - Tartu, 1999 (Publicationes instituti geographici Universitatis Tartuensis 1406-3069; 84) ISBN 9985-4-0025-9. s. 13-15
J. Virta and K. Pulkkinen,
Modelling vertical turbulent mixing in the hypolimnion of a lake,
In Proc. of the 4th Workshop on Physical Processes in Natural Waters, 13-17 September 1999, Roosta, Estonia, Estonian Marine Institute, Report Series 10, ISSN 1406-023X, ISBN 9985-9058-9-X, pp. 29-33
L.J. Pesonen and M. Lehtinen,
Paasselkä: a new meteorite impact structure in eastern Finland,
Meteoritics & Planetary Science : Journal of the Meteoritical Society. - Fayetteville, AR : Meteoritical Society ISSN 1086-9379. 34 (1999): 4, Supplement, s. A90-A91
M. Leppäranta, H. Arst and K. Rasmus,
Passive optical remote sensing of natural water bodies,
The optics ground truth of the Finnish Salmon experiment 1997-1998. - Helsinki : University of Helsinki, Department of Geophysics, 1999 (Report Series in Geophysics 0355-8630; no 41) ISBN 951-45-8546-1, pp. 4-24
J. Haapala, A. Herlevi, M. Leppäranta, T. Stipa and Z. Zhang,
ZIP-97 experiment,
Local ice cover deformation and mesoscale ice dynamics : report from the "Ice State" project. - Espoo : TKK, 1999 (Teknillinen korkeakoulu. laivalaboratorio. M-242) ISSN 1456-3045 ISBN 951-22-4716-X, pp. 277-301
R.V. Goldstein, N.M. Osipenko and M. Leppäranta,
Remote sensing and sea ice mechanics,
Ibid., pp. 373-385
M. Leppäranta,
Downscaling,
Local ice cover deformation and mesoscale ice dynamics : Report from the "Ice State" project. - Espoo : TKK, 1999 (Teknillinen korkeakoulu. M 1456-3045; 243) ISBN 951-22-4717-8. s. 67-83
A. Herlevi and S. Rasmus,
Underwater optics measurements in Finnish SALMON-lakes,
The optics ground truth of the Finnish Salmon experiment 1997-1998, Report Series in Geophysics 0355-8630; no 41, pp.25-48
L.J. Pesonen, and M. Lehtinen,
Yhdeksäs kraatteri löytyi idästä, Helsingin sanomat. - Helsinki : Sanoma ISSN 0355-2047. 17.4.1999, s. D1
M. Leppäranta,
Lumi ja jää suomalaisena erikoisalana: lumen ja jään tutkijakoulu,
Tietoyhteys. - Espoo : CSC - Tieteellinen laskenta ISSN 1239-9248. 3 (1999) : 2, s. 8-9