EDUCATION
1969 The Norwegian Institute of Technology (NTH), Physics.
1973 Dr.ing. (Ph.D), NTH, Mathematical Analysis.
EXPERIENCE
1973-74 Research Scientist at Institute Mittag-Leffler, Stockholm.
1974-76 Assistant Professor, Dept. of Mathematics, NTH.
1976-85 Research Scientist, Continental Shelf Institute, IKU, Trondheim.
1981-82 Visiting Scholar, Dept. of Meteorology and Physical Oceanography,
M.I.T., Boston.
1983-95 Associate Professor, Industrial Mathematics, Dept. Mathematical
Sciences NTH.
1987-88 Senior Research Engineer, OCEANOR A/S.
1988-95 Senior Research Scientist, SINTEF Industrial Mathematics.
1996- Senior Scientific Advisor, SINTEF Applied Mathematics.
1996- Professor, Dept. of Mathematical Sciences, NTNU.
MAIN FIELDS OF COMPETENCE
Industrial and Applied mathematics.
Signal processing
Ocean wave analysis and statistics
Remote Sensing/Synthetic Aperture Radar
PROFESSIONAL MEMBERSHIPS
Norges Tekniske Vitenskapsakademi
Society for Industrial and Applied Mathematics (SIAM)
Institute of Electrical and Electronics Eng. (IEEE)
PUBLICATIONS AND REPORTS
Mathematics/statistics: 16
Applied mathematics: 6
Petroleum engineering 5
Oceanography/Remote sensing: ~110
SOME PUBLICATIONS
Multipliers of Segal algebras, Math. Scand., Vol. 38 (1976) pp 285-303.
The A(p,q) algebras and singular measures with Fourier transforms in
L(2,q),
q>2, Hokk. Math. Journal, Vol. 7 (1978) pp 27-42.
On the Covariance of the Periodogram, J. Time Series Analysis, Vol. 3 (1982) pp 195- 207.
Height and period distributions of extreme waves, Appl. Ocean Res.,
Vol.7 (1985)
pp 158-165.
Procedures and problems associated with the calibration of wave sensors,
in Adv.
Underwater Techn. and Offs. Eng. Vol.4 (1985) pp 55-82 (With S.F. Barstow, K.
Torsethaugen, T. Audunson).
Maximum entropy estimation of the directional distribution in ocean wave
spectra,
J. Phys. Ocean., Vol.16 (1986), pp 2052-2060 (With A. Lygre) .
Maximum likelihood estimation of ocean wave spectra from general arrays
of
wave gauges, Mod. Ident. Control, Vol.9 (1988) pp 81-97.
Long period swell wave events on the Norwegian Shelf (with B. Gjevik,
A. Lygre and O.
Rygg), J. Phys Oceanography, Vol.18 (1988) pp 724-737.
High-resolution directional wave spectra from horizontally mounted
acoustic doppler
current meters (with M. Miller and R.L. Gordon), J. Atmos, Ocean. Techn,
Vol.5
(1988) pp 340-352.
The WADIC Project: A Comprehensive Field Evaluation of Directional Wave
Instrumentation (with T. Audunson, S.F. Barstow, S. Bjerken, P.
Steinbakke,
L. Vartdal, L.E. Borgman, C. Graham and J. Allender). Ocean Engineering, Vol.16
(1989) pp 505-536.
Simulation of Multivariate Gaussian Time Series, Comm. in Statistics,
Vol. 18
no. 3 (1989) pp 929-941.
Reliability and Resolution of Directional Wave Spectra From, Heave, Pitch
and Roll Data
Buoys, in Directional Wave Spectra, Ed. R.C. Beal , Johns Hopkins
University Press 1991
The Wavescan second generation directional wave buoy (with
S.F.Barstow, G. Ueland and
B.A. Fossum) IEEE J. of Ocean. Eng. Vol.16, no. 3 , 254-266 (1991)
A simple derivation of Hasselman's nonlinear ocean-sar transformation,
J. Geophys. Res.,
Vol.97,C2, 2421-2425, 1992.
Azimuth Smearing in Ocean-SAR Image Spectra: A Study of Hasselmann's
Closed- Form
Transformation Based on Simulations of NORCSEX'88 SAR Data (with K. A.
Høgda, S.
Jacobsen, and G. Engen) Radio Science, Vol. 28, No. 4 (1993), pp. 501-512.
Airborne Synthetic Aperture Radar Observations and Simulations for Waves
in Ice
(with P. Vachon, R.B. Olsen and A.K. Liu), J. Geophys. Res., Vol. 98, No. C9
(1993), pp.
16411-16425.
Generalizations of the Nonlinear Ocean-SAR Transformation and a
Simplified SAR
Inversion Algorithm (with O. Samset and P. W. Vachon), Atmosphere and
Ocean, Vol. 32,
No. 1 (1994) pp. 61-82.
Airborne and Spaceborne Synthetic Aperture Radar Observations of Ocean
Waves (with
P. W. Vachon and J. Scott Paterson), Atmosphere and Ocean, Vol. 32, No. 1
(1994) pp.
83-112.
Directional Wave Spectra by Inversion of Synthetic Aperture Radar Ocean
Imagery (with
G. Engen, H. Johnsen, S.F. Barstow), IEEE Trans. Geoscience and Remote Sensing,
Vol.
32, No.2 (1994), pp. 340 - 352.
Wave-Climate Assessment by Satellite Remote Sensing (with S.F.
Barstow ) Sea Techn.
Mag., October 1995, pp. 31- 38
Synthetic Aperture Radar Imagery of Ocean Waves (with P.W. Vachon) in
Oceanographic
Application of Remote Sensing, ed.: M. Ikeda and F.W. Dobson, CRS Press Inc.
1995, pp.
237-255.
Observations of the High Frequency Range of the Wave Spectrum (with
M. Provosto, C.
Guedes Soares and S.F. Barstow), JOMAE Vol. 118 (1996) pp. 89-95.
Assimilation of ERS SAR wave spectra in an operational wave model (with Lars-Anders Breivik, Magnar Reistad, Harald Schyberg J. Sunde, Harald Jeohnsen) Geophys. Res. Vol. 103, NO. C4 (1998) pp. 7887-7900
The SCAWVEX project (with L.R. Wyatt, K-W Gurgel, H.C. Peters, D. Prandle, O. Haug, H. Gerritsen, and G.J. Wensink) Proc. WAVES'97, Nov. 3-7 1997, Vol. 2, ASCE (1998) pp. 1457-1468.
Satellite Altimeter Data in Wave Energy Studies (with S.F. Barstow, O. Haug) Proc. WAVES'97, Nov. 3-7 1997, Vol. 1, ASCE (1998) pp. 339 -354.
Directional Distributions in Wave Spectra (with S.F. Barstow, O. Haug, and D.J.H. Peters) Proc. WAVES'97, Nov. 3-7 1997, Vol. 1, ASCE (1998) pp. 883 - 895.
SMART-800: A GPS-based directional Wave Buoy (with S.F. Barstow, O. Haug, and P.Ø. Markussen, G. Ueland and I. Rodriguez) Proc. WAVES'97, Nov. 3-7 1997, Vol. 2, ASCE (1998) pp. 1182 - 1195.
Satellite Wave Measurements (with S.F. Barstow) Proc. Oceanology International 98, 10-13 March 1998, Brighton, England, Vol. 3 (1998) pp. 445-454.
SMART-800: Remotely sensed Directional Spectra from a Moored Buoy (with S.F. Barstow, O. Haug, and P.Ø. Markussen, G. Ueland and I. Rodriguez) Proc. Oceanology International 98, 10-13 March 1998, Brighton, England, Vol. 3 (1998) pp. 399 - 408.
CV/HEK -1998