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2018
1 Hansen, Morten Wergeland; Johnsen, Harald; Engen, Geir; Park, Jeong-Won; Moiseev, Artem.
ESA PRODEX ISAR - Final Report. Bergen: Nansen Environmental and Remote Sensing Center 2018 NERSC Technical Report(397)
NERSC UiT NORUT Untitled
 
2 Hansen, Morten Wergeland; Johnsen, Harald; Engen, Geir; Park, Jeong-Won; Moiseev, Artem.
Improved knowledge of high latitude ocean circulation with Synthetic Aperture Radar (ISAR) ESA-PRODEX-ISAR FINAL REPORT. Bergen: Nansen Senter for Miljø og Fjernmåling 2018 70 s. NERSC Technical Report(397)
NERSC NORUT UiT Untitled
 
3 Hansen, Morten Wergeland; Johnsen, Harald; Park, Jeong-Won; Engen, Geir.
A new look at Envisat ASAR range Doppler shift retrieval with the aim of reprocessing ten years of level-0 data. I: EUSAR 2018; 12th European Conference on Synthetic Aperture Radar. VDE Verlag GmbH 2018 ISBN 978-3-8007-4636-1. s. 1423-1428
NERSC NORUT Untitled
 
4 Hansen, Morten Wergeland; Johnsen, Harald; Park, Jeong-Won; Engen, Geir.
A new look at Envisat ASAR range Doppler shift retrieval with the aim of reprocessing ten years of level-0 data. EUSAR 2018 - 12th European Conference on Synthetic Aperture Radar; 2018-06-04 - 2018-06-07
NERSC NORUT UiT Untitled
 
5 Nilsen, Vegard; Johnsen, Harald; Engen, Geir.
A novel approach to SAR ocean wind retrieval. SEASAR2018, 7-10 May,2018, ESRIN,Frascati; 2018-05-07 - 2018-05-10
NORUT UiT Untitled
 
2017
6 Boccia, Valentina; De Witte, Erik; Roselló, Josep; Tossaint, Michel; Donlon, Craig J.; Scipal, Klaus.; Burbidge, Geoff; Johnsen, Harald; Fois, Franco; Engen, Geir; Bibby, David.
StereoSAR: A multi-static SAR mission concept to enhance Sentinel-1 capabilities for measuring ocean dynamics. Proceedings of SPIE, the International Society for Optical Engineering 2017 ;Volum 10423.
NORUT Untitled
 
7 Boccia, Valentina; Witte, Erik De; Rosello, Josep; Tossaint, Michel; Donlon, Craig J.; Scipal, Klaus.; Burbidge, Geoff; Johnsen, Harald; Engen, Geir.
A multi-static SAR mission concept enhancing Sentinel-1 capability in surface current dynamics retrieval. SPIE Remote Sensing 2017, 11-14 Sep., Warsaw, Poland; 2017-09-11 - 2017-09-13
NORUT UiT Untitled
 
8 Faozi, Said; Johnsen, Harald; Nouguier, Frédéric; Chapron, Bertrand; Engen, Geir.
Onto a skewness approach to the generalized curvature ocean surface scattering model. IEEE Transactions on Geoscience and Remote Sensing 2017 ;Volum 55.(10) s. 5843-5853
NORUT Untitled
 
9 Hansen, Morten Wergeland; Johnsen, Harald; Engen, Geir; Nilsen, Jan Even Øie.
Improved measurement of sea surface velocity from synthetic aperture radar. EGU General Assembly; 2017-04-24 - 2017-04-28
NERSC NORUT UiB UiT Untitled
 
10 Hansen, Morten Wergeland; Park, Jeong-Won; Johnsen, Harald; Engen, Geir.
Improved measurement of sea surface velocity from synthetic aperture radar. EuroGOOS International Conference: Operational Oceanography serving sustainable marine development; 2017-10-03 - 2017-10-05
NERSC NORUT UiT Untitled
 
11 Johnsen, Harald; Engen, Geir.
Doppler shifts retrieval from Sentinel 1 - Status and Way Forward. GlobCurrent Workshop, 21-23 March 2017, ESA/ESRIN, Frascati, Italy; 2017-03-21 - 2017-03-23
NORUT UiT Untitled
 
12 Kræmer, Thomas; Johnsen, Harald; Brekke, Camilla; Engen, Geir.
Comparing SAR based short time-lag cross-correlation and Doppler derived sea ice drift velocities. IEEE Transactions on Geoscience and Remote Sensing 2017 ;Volum 56.(4) s. 1898-1908
NORUT UiT Untitled
 
2016
13 Hansen, Morten Wergeland; Engen, Geir; Johnsen, Harald; Johannessen, Johnny Andre; Korosov, Anton.
Improved measurements of sea surface velocity from Envisat ASAR and Sentinel-1. ESA Living Planet Symposium; 2016-05-09 - 2016-05-13
NERSC NORUT UiB Untitled
 
14 Johnsen, Harald; Nilsen, Vegard; Engen, Geir; Mouche, Alexis A.; Collard, Fabrice.
Ocean Doppler anomaly and ocean surface current from Sentinel 1 tops mode.. IEEE International Geoscience and Remote Sensing Symposium proceedings 2016 s. 3993-3996
NORUT Untitled
 
2015
15 Said, Faozi; Johnsen, Harald; Chapron, Bertrand; Engen, Geir.
An ocean wind Doppler model based on the generalized curvature ocean surface scattering model. IEEE Transactions on Geoscience and Remote Sensing 2015 ;Volum 53.(12) s. 6632-6638
NORUT UiT Untitled
 
2014
16 Engen, Geir; Johnsen, Harald; Larsen, Yngvar.
Sentinel-1 Geophysical Doppler Product - Performance and Application. I: EUSAR 2014; 10th European Conference on Synthetic Aperture Radar; Proceedings of. VDE Verlag GmbH 2014 ISBN 978-3-8007-3607-2. s. -
NORUT Untitled
 
17 Larsen, yngvar; Engen, Geir.
SAR processing in small pieces - a divide-and-conquer approach. I: EUSAR 2014; 10th European Conference on Synthetic Aperture Radar; Proceedings of. VDE Verlag GmbH 2014 ISBN 978-3-8007-3607-2. s. -
NORUT Untitled
 
2013
18 Johnsen, Harald; Engen, Geir.
SAR Doppler for Ocean Current Measurement - processing requirements and performance. Ocean Current Workshop, 6-8 May 2013, ESTEC; 2013-05-06 - 2013-05-08
NORUT UiT Untitled
 
2012
19 Engen, Geir; Johnsen, Harald.
High-precision Doppler estimation for ocean applications. ESA SP 2012 s. 1-17
NORUT Untitled
 
2011
20 Engen, Geir; Larsen, yngvar.
Efficient Full Aperture Processing of TOPS Mode Data Using the Moving Band Chirp Z-Transform. IEEE Transactions on Geoscience and Remote Sensing 2011 ;Volum 49.(10) s. 3688-3693
NORUT Untitled
 
2008
21 Johnsen, Harald; Engen, Geir; Gilles, Guitton.
Sea surface polarization ratio from Envisat ASAR AP Data. IEEE Transactions on Geoscience and Remote Sensing 2008 ;Volum 46.(11) Suppl. 1 s. 3637-3646
NORUT UiT Untitled
 
2006
22 Engen, Geir; Johnsen, Harald; Pedersen, Ida Friestad; Elfouhaily, Tanos.
Curvature Effects in Ocean Surface Scattering. IEEE Transactions on Antennas and Propagation 2006 ;Volum 54.(5) s. 1370-1379
NORUT UiO UiT Untitled
 
2003
23 Lauknes, Tom Rune; Engen, Geir; Høgda, Kjell Arild; Lauknes, Inge; Eltoft, Torbjørn; Weydahl, Dan Johan; Eldhuset, Knut.
Long-term subsidence monitoring of city areas at Nordic latitudes using ERS data. FRINGE 2003 Workshop; 2003-12-01 - 2003-12-05
NORUT FFI UiT Untitled
 
1999
24 Engen, Geir; Johnsen, Harald; Vachon, P.W..
Retrieval of Ocean Wave Spectra and RAR MTF’s From Dual-Polarization SAR Data. IEEE Transactions on Geoscience and Remote Sensing 1999 ;Volum 38.(1) s. 391-403
NORUT UiT Untitled
 
1995
25 Engen, Geir; Johnsen, Harald.
SAR-Ocean Wave Inversion Using Image Cross Spectra. IEEE Transactions on Geoscience and Remote Sensing 1995 ;Volum 33.(4) s. 1047-1056
NORUT UiT Untitled