Eyvind Aas

Associate Professor Emeritus
Image of Eyvind Aas
Norwegian version of this page
Phone +47-22855808
Fax +47-22855269
Room 58.12.36
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Visiting address MetOs Dept. of Geosciences Forskningsparken Gaustadalléen 21 0349 OSLO
Postal address Department of Geosciences Postboks 1022 Blindern 0315 OSLO

Academic Interests

  • Marine optics/remote sensing related to monitoring of water quality
  • Oceanographic processes of fjords and estuaries

Higher education and employment history

  • 1980-2011: Associate Professor (phys. oceanogr.), Dept. Geophys./Geosciences, University of Oslo
  • 1979: Fellowship / Nordic Collegium for Physical Oceanography
  • 1978-79: Deputy Associate Professor, Dept. Geophys., Univ. Oslo
  • 1971-77: Research Assistant, Department of Geophysics, Univ. Oslo
  • 1969-71: Research Assistant, Int. Biological Program, Univ. Oslo

Education

  • 1985 Dr.philos. in phys. oceanogr./marine optics, Univ. Oslo
  • 1969 Cand.real. in geophysics/phys. oceanogr., Univ. Oslo
Tags: Oceanography, Marine optics, Estuaries

Publications

  • Kleiv, Øyvind; Folkestad, Are; Høkedal, Jo; Sørensen, Kai & Aas, Eyvind (2015). Estimation of upward radiances and reflectances at the surface of the sea from above-surface measurements. Ocean Science.  ISSN 1812-0784.  11(5), s 779- 788 . doi: 10.5194/os-11-779-2015
  • Kristiansen, Trond & Aas, Eyvind (2015). Water type quantification in the Skagerrak, the Kattegat and off the Jutland west coast. Oceanologia.  ISSN 0078-3234.  57(2), s 177- 195 . doi: 10.1016/j.oceano.2014.11.002 Full text in Research Archive
  • Aas, Eyvind; Høkedal, Jo & Sørensen, Kai (2014). Secchi depth in the Oslofjord-Skagerrak area: theory, experiments and relationships to other quantities . Ocean Science.  ISSN 1812-0784.  10, s 177- 199 . doi: 10.5194/os-10-177-2014 Full text in Research Archive
  • Aas, Eyvind; Højerslev, Niels Kristian; Høkedal, Jo & Sørensen, Kai (2013). Optical water types of the Nordic Seas and adjacent areas . Oceanologia.  ISSN 0078-3234.  55(2), s 471- 482 . doi: 10.5697/oc.55-2.471
  • Staalstrøm, André; Aas, Eyvind & Liljebladh, B. (2012). Propagation and dissipation of internal tides in the Oslofjord. Ocean Science.  ISSN 1812-0784.  8(4), s 525- 543 . doi: 10.5194/os-8-525-2012
  • Aas, Eyvind (2010). Estimates of radiance reflected towards the zenith at the surface of the sea. Ocean Science.  ISSN 1812-0784.  6(4), s 861- 876 . doi: 10.5194/os-6-861-2010
  • Wåhlin, Anna Kristine; Johansson, A. M.; Aas, Eyvind; Brostrøm, G.; Weber, Jan Erik H. & Grue, John (2010). Horizontal convection in water heated by infrared radiation and cooled by evaporation: scaling analysis and experimental results. Tellus. Series A, Dynamic meteorology and oceanography.  ISSN 0280-6495.  62A(2), s 154- 169 . doi: 10.1111/j.1600-0870.2009.00427.x
  • Aas, Eyvind; Højerslev, Niels Kristian & Høkedal, Jo (2009). Conversion of sub-surface reflectances to above-surface MERIS reflectance. International Journal of Remote Sensing.  ISSN 0143-1161.  30(21), s 5767- 5791 . doi: 10.1080/01431160902744803
  • Sørensen, Kai; Aas, Eyvind & Høkedal, Jo (2007). Validation of MERIS water products and bio-optical relationships in the Skagerrak. International Journal of Remote Sensing.  ISSN 0143-1161.  28(3-4), s 555- 568 . doi: 10.1080/01431160600815566
  • Aas, Eyvind; Høkedal, Jo & Sørensen, Kai (2005). Spectral backscattering coefficient in coastal waters. International Journal of Remote Sensing.  ISSN 0143-1161.  26(2), s 331- 343
  • Høkedal, Jo; Aas, Eyvind & Sørensen, Kai (2005). Spectral optical and bio-optical relationships in the Oslo Fjord compared with similar results from the Baltic Sea. International Journal of Remote Sensing.  ISSN 0143-1161.  26(2), s 371- 386
  • Aas, Eyvind; Høkedal, Jo; Højerslev, Niels K.; Sandvik, R. & Sakshaug, Egil (2002). Spectral properties and UV-attenuation in Arctic marine waters, In Dag Olav Hessen (ed.),  UV-radiation and Arctic ecosystems.  Springer-Verlag, Heidelberg.  s 23 - 56
  • Adams, James T.; Aas, Eyvind; Højerslev, Niels K. & Lundgren, Bo (2002). Comparison of radiance and polarization values observed in the Mediterranean Sea and simulated in a Monte Carlo model. Applied Optics.  ISSN 0003-6935.  41(15), s 2724- 2733
  • Aas, Eyvind & Højerslev, Niels K. (2001). Attenuation of ultraviolet irradiance in North European coastal waters. Oceanologia.  ISSN 0078-3234.  43(2), s 1- 30
  • Højerslev, Niels K. & Aas, Eyvind (2001). Spectral light absorption by yellow substance in the Kattegat-Skagerrak area. Oceanologia.  ISSN 0078-3234.  43(1), s 39- 60
  • Aas, Eyvind & Endresen, Øyvind (1999). Accuracy of simplified transport estimations in narrow sea straits. Deutsche Hydrographische Zeitschrift.  ISSN 0946-2015.  51(4), s 441- 451
  • Aas, Eyvind & Højerslev, Niels K. (1999). Analysis of underwater radiance observations: apparent optical properties and analytic functions describing the angular radiance distribution. Journal of Geophysical Research.  ISSN 0148-0227.  104, s 8015- 8024
  • Aas, Eyvind & Høkedal, Jo (1999). Reflection of spectral sky radiance on the surface of the sea and related properties. Remote Sensing of Environment.  ISSN 0034-4257.  70, s 181- 190
  • Ødegaard, Svein; Sjøtun, Kjersti; Lein, Tor Eiliv & Aas, Eyvind (1998). Sporophyte formation of Laminaria hyperborea (Laminariales, Phaeophyceae) related to photon doses of blue light in the sea. Sarsia.  ISSN 0036-4827.  83, s 301- 308
  • Aas, Eyvind (1976). The influence of fresh water on light conditions in fjords, In Stig Skreslet; Reidar Leinebø; John B. L. Matthews & Egil Sakshaug (ed.),  Fresh water on the sea. Proceedings from a symposium on the influence of fresh-water outflow on biological processes in fjords and coastal waters, 22-25 April 1974, Geilo, Norway.  The Association of Norwegian Oceanographers.  artikkel.  s 129 - 138
  • Aas, Eyvind (1971). The natural history of the Hardangerfjord. 9. Irradiance in Hardangerfjorden 1967. Sarsia.  ISSN 0036-4827.  46, s 59- 78

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  • Peters, Steef; Eleveld, Marieke; Pasterkamp, Reinold; van der Woerd, Hans; Devolder, Mia; Jans, Siegrid; Park, Youngje; Ruddick, Kevin; Block, Thomas; Brockmann, Carsten; Doerffer, Roland; Kraseman, Hansjörg; Röttgers, Rudiger; Schönfeld, Wolfgang; Jørgensen, Peter Viskum; Tilstone, Gavin; Martinez-Vincente, Victor; Moore, Gerald; Sørensen, Kai; Høkedal, Jo; Johnsen, Torbjørn Martin; Lømsland, Evy Rigmor & Aas, Eyvind (2005). Atlas of Chlorophyll-a concentration for the North Sea based on MERIS imagery of 2003. Vrije Universiteit.  ISBN 90-5192-026-1.  121 s.

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  • Aas, Eyvind (2009). Corrections of reflectance recordings by ship-mounted radiometers.
  • Wåhlin, Anna Kristine; Ericsson, A.M.; Aas, Eyvind; Brostrøm, G.; Weber, Jan Erik H. & Grue, John (2008). Horizontal convection in water heated by infrared radiation and cooled by evaporation.
  • Aas, Eyvind (2006). Vertical transfer of infrared radiation in water.
  • Aas, Eyvind (2005). Some atmospheric scattering functions and optical thicknesses from the Oslo area.
  • Aas, Eyvind; Sørensen, Kai & Høkedal, Jo (2005). Regional variations of IOPs and their relationships to other bio-optical quantities in the North Sea - Skagerrak - Kattegat area.
  • Høkedal, Jo; Aas, Eyvind & Sørensen, Kai (2005). Contribution to absorption from pigments, bleached particles and Gelbstoff compared to the total coefficient obtained with other methods.
  • Sørensen, Kai; Høkedal, Jo & Aas, Eyvind (2005). Use of ships of opportunity data for satellite data validation.
  • Wåhlin, Anna Kristine; Ericsson, A. M.; Aas, Eyvind & Weber, Jan Erik (2005). Horizontal convection in water heated by infra-red radiation and cooled by evaporation.
  • Aas, Eyvind; Christensen, Kai Håkon; Ferbar, Michaela; Fossum, Ingerid; Hanken, Helene; Høkedal, Jo; Korsbø, Brith; Kristiansen, Trond; Moreno Sanz, Paula; Staalstrøm, André; Thill, Karina; Wettre, Cecilie Drabløs & Åman, Anders (2005). Secchi disk observations in the Nordic Seas 1991-2004.
  • Aas, Eyvind (2004). Hvordan er det mulig å måle vannparametere fra rommet?.
  • Sørensen, Kai; Aas, Eyvind; Severinsen, Gunnar; Doerffer, Roland & Dahl, Einar (2003). Validation of MERIS water products in the Skagerrak.
  • Sørensen, Kai; Høkedal, Jo; Aas, Eyvind; Doerffer, Roland & Dahl, Einar (2003). Early results for validation of MERIS products in the Skagerrak.
  • Aas, Eyvind; Høkedal, Jo & Sørensen, Kai (2001). Measurements on filtered water samples: The influence of filter type, pore size and residue particles.
  • Høkedal, Jo; Aas, Eyvind & Sørensen, Kai (2001). Relations between optical quantities and chlorophyll in the Oslofjord.
  • Aas, Eyvind (2000). Spectral slope of yellow substance: Problems caused by small particles.
  • Aas, Eyvind & Højerslev, Niels K. (2000). Problems related to modelling of UV penetration into Norwegian and Danish coastal waters.
  • Stamnes, Jakob J.; Erga, Svein Rune; Frette, Øyvind; Stamnes, Knut; Chen, Binquan; Pettersson, Lasse; Svenøe, Trond; Sakshaug, Egil & Aas, Eyvind (1999). Light and life in coastal waters.
  • Aas, Eyvind & Højerslev, Niels K. (1999). Penetration of UVB irradiance into the Nordic Seas and adjacent coastal waters.
  • Højerslev, Niels K. & Aas, Eyvind (1999). Optical properties of yellow substance in the Kattegat-Skagerrak area.
  • Stamnes, Jakob J.; Erga, Svein Rune; Frette, Øyvind; Stamnes, Knut; Chen, Bingquan; Pettersson, Lasse; Svenøe, Trond; Sakshaug, Egil & Aas, Eyvind (1998). Light and Life in Coastal Waters.
  • Endresen, Øyvind & Aas, Eyvind (1998). Overflatestrømmer i Drøbaksundet. Seilas.  ISSN 0803-0553.  5, s 67
  • Højerslev, Niels K. & Aas, Eyvind (1998). Spectral light absorption by Gelbstoff in coastal waters displaying highly different concentrations.
  • Høkedal, Jo & Aas, Eyvind (1998). Høkedal, J. and Aas, E., 1998. Observations of spectral sky radiance and solar irradiance. Rep. Dept. Geophys., Univ. Oslo, 103, 73 pp..
  • Høkedal, Jo & Aas, Eyvind (1998). Observations of spectral sky radiance and solar irradiance.
  • Aas, Eyvind; Højerslev, Niels Kristian & Lundgren, Bo (1997). Aas, E., Højerslev, N. K. and Lundgren, B., 1997. Spectral irradiance, radiance and polarization data from the Nordic Cruise in the Mediterranean Sea during June-July 1971. Rep. Dept. Geophys., Univ. Oslo, 102, 97 pp..
  • Korsbø, Brith & Aas, Eyvind (1997). Korsbø, B. and Aas, E., 1997. Ship-shading effects on upward radiance and irradiance in coastal waters. Rep. Dept. Geophys., Univ. Oslo, 101, 13 pp..
  • Mikaelsen, Britt Kristin & Aas, Eyvind (1990). Mikaelsen, B.K. and Aas, E., 1990. Secchi disk depths and related quantities in the Oslofjord 1986-87. Rep. Dept. Geophys., Univ. Oslo, 77, 55 pp..
  • Aas, Eyvind (1988). Aas, E., 1988. The absorption coefficient of clear ocean water. Rep. Dept. Geophys., Univ. Oslo, 67, 17 pp..
  • Sørgård, Eirik; Martinsen, Thomas & Aas, Eyvind (1988). Calibration of an ultrasonic current meter.
  • Aas, Eyvind (1976). The vertical attenuation coefficient of submarine irradiance.
  • Aas, Eyvind & Berge, Grim (1976). Irradiance observations in the Norwegian and Barents Seas.
  • Aas, Eyvind (1969). On submarine irradiance measurements.

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Published Dec. 10, 2013 7:55 PM - Last modified Mar. 24, 2017 3:52 PM

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