262
J. A. Johannessen et al.
References
Backeberg BC, Bertino L, Johannessen JA (2009) Evaluating two numerical advection schemes in
HYCOM for eddy-resolving modelling of the Agulhas Current. Ocean Sci 5(2):173–190
Biastoch A, Böning CW, Schwarzkopf FU, Lutjeharms JRE (2009) Increase in Agulhas leakage
due to poleward shift of southern Hemisphere westerlies. Nature 462:495–498
Bleck R (2002) An oceanic general circulation model framed in hybrid isopycnic-Cartesian
coordinates. Ocean Model 37:55–88
Boebel O, Rossby T, Lutjeharms JRE, Zenk W, Barron C (2003) Path and variability of the Agulhas
Return Current. Deep Sea Res 50:35–56
Bryden HL, Beal LM, Duncan LM (2005) Structure and transport of the Agulhas Current and its
temporal variability. J Oceanogr 61:479–492
Chapron B, Collard F, Ardhum F (2005) Direct measurements of ocean surface velocity from space:
interpretation and validation. J Geophys Res 110:C07008
Chelton DB, Schlax MG, Freilich MH, Milliff RF (2004) Satellite radar measurements reveal
short-scale features in the wind stress field over the world ocean. Science 303:978–983
Collard F, Mouche A, Chapron B, Danilo C, Johannessen JA (2008) Routine high resolution observation of selected major surface currents from space. Proceedings SeaSAR 2008, p 8, ESA
SP-656. ESA Communication Production Office, ESTEC, Noordwijk, Netherlands
Gründlingh ML (1983) On the course of the Agulhas Current. S Afr Geogr J 65(1):49–57
Hansen MW, Collard F, Dagestad KF, Johannessen JA, Fabry P, Chapron B (2011a) Retrieval of
sea surface range velocities from Envisat ASAR Doppler centroid measurements. IEEE Trans
Geosci Remote Sens 49(10):3582–3592
Hansen MW, Johannessen JA, Dagestad KF, Collard F, Chapron B (2011b) Monitoring the surface
inflow of Atlantic water to the Norwegian sea using Envisat ASAR. J Geophys Res-Oceans
116:C12008. doi:10.1029/2011JC007375
Johannessen JA, Chapron B, Collard F, Kudryavtsev V, Mouche A, Akimov D, Dagestad KF (2008)
Direct ocean surface velocity measurements from space: improved quantitative interpretation
of Envisat ASAR observations. Geophys Res Lett 35:L22608
Lutjeharms JRE (2006) The Agulhas Current. Springer-Praxis Books
Lutjeharms JRE, Bornman TG (2010) The importance of the greater Agulhas Current is increasingly
being recognised. S Afr J Sci 106(3/4):4 (#160). doi: 10.4102/sajs.v106i3/4.160
Lutjeharms JRE, Catzel R, Valentine HR (1989) Eddies and other boundary phenomena of the
Agulhas Current. Cont Shelf Res 9:597–616
Mouche A, Dagestad KF, Collard F, Guitton G, Chapron B, Johannessen JA, Kerbaol V, Hansen
MW (2012) On the use of Doppler shift for sea surface wind retrieval from SAR. IEEE Trans
Geosci Remote Sens 50(7):2901–2909
Rio MH, Guinehut S, Larnicol G (2011) New CNES-CLS09 global mean dynamic topography
computed from the combination of GRACE data, altimetry, and in situ measurements. J Geophys
Res 116:C07018. doi: 10.1029/2010JC006505
Romeiser R, Johannessen JA, Chapron B, Collard F, Kudryavtsev V, Runge H, Suchandt S (2010)
Direct surface current field imaging from space by along-track InSAR and conventional SAR.
In: Barale V, Gower JFR, Alberotanza L (eds) Oceanography from space, revisited. Springer,
Heidelberg, pp 73–91
Romeiser R, Thompson DR (2000) Numerical study on the along-track interferometric radar
imaging mechanism of oceanic surface currents. IEEE Trans Geosci Remote Sens 38(I):446–458
Rouault M, Penven P, Pohl B (2009) Warming in the Agulhas Current system since the 1980’s.
Geophys Res Lett 36:L12602
Rouault MJ, Mouche A, Collard F, Johannessen JA, Chapron B (2010) Mapping the Agulhas current
from space: an assessment of ASAR surface current velocities. J Geophys Res. Vol. 115, C10026
doi:10.1029/2009JC006050
J. A. Johannessen et al.
References
Backeberg BC, Bertino L, Johannessen JA (2009) Evaluating two numerical advection schemes in
HYCOM for eddy-resolving modelling of the Agulhas Current. Ocean Sci 5(2):173–190
Biastoch A, Böning CW, Schwarzkopf FU, Lutjeharms JRE (2009) Increase in Agulhas leakage
due to poleward shift of southern Hemisphere westerlies. Nature 462:495–498
Bleck R (2002) An oceanic general circulation model framed in hybrid isopycnic-Cartesian
coordinates. Ocean Model 37:55–88
Boebel O, Rossby T, Lutjeharms JRE, Zenk W, Barron C (2003) Path and variability of the Agulhas
Return Current. Deep Sea Res 50:35–56
Bryden HL, Beal LM, Duncan LM (2005) Structure and transport of the Agulhas Current and its
temporal variability. J Oceanogr 61:479–492
Chapron B, Collard F, Ardhum F (2005) Direct measurements of ocean surface velocity from space:
interpretation and validation. J Geophys Res 110:C07008
Chelton DB, Schlax MG, Freilich MH, Milliff RF (2004) Satellite radar measurements reveal
short-scale features in the wind stress field over the world ocean. Science 303:978–983
Collard F, Mouche A, Chapron B, Danilo C, Johannessen JA (2008) Routine high resolution observation of selected major surface currents from space. Proceedings SeaSAR 2008, p 8, ESA
SP-656. ESA Communication Production Office, ESTEC, Noordwijk, Netherlands
Gründlingh ML (1983) On the course of the Agulhas Current. S Afr Geogr J 65(1):49–57
Hansen MW, Collard F, Dagestad KF, Johannessen JA, Fabry P, Chapron B (2011a) Retrieval of
sea surface range velocities from Envisat ASAR Doppler centroid measurements. IEEE Trans
Geosci Remote Sens 49(10):3582–3592
Hansen MW, Johannessen JA, Dagestad KF, Collard F, Chapron B (2011b) Monitoring the surface
inflow of Atlantic water to the Norwegian sea using Envisat ASAR. J Geophys Res-Oceans
116:C12008. doi:10.1029/2011JC007375
Johannessen JA, Chapron B, Collard F, Kudryavtsev V, Mouche A, Akimov D, Dagestad KF (2008)
Direct ocean surface velocity measurements from space: improved quantitative interpretation
of Envisat ASAR observations. Geophys Res Lett 35:L22608
Lutjeharms JRE (2006) The Agulhas Current. Springer-Praxis Books
Lutjeharms JRE, Bornman TG (2010) The importance of the greater Agulhas Current is increasingly
being recognised. S Afr J Sci 106(3/4):4 (#160). doi: 10.4102/sajs.v106i3/4.160
Lutjeharms JRE, Catzel R, Valentine HR (1989) Eddies and other boundary phenomena of the
Agulhas Current. Cont Shelf Res 9:597–616
Mouche A, Dagestad KF, Collard F, Guitton G, Chapron B, Johannessen JA, Kerbaol V, Hansen
MW (2012) On the use of Doppler shift for sea surface wind retrieval from SAR. IEEE Trans
Geosci Remote Sens 50(7):2901–2909
Rio MH, Guinehut S, Larnicol G (2011) New CNES-CLS09 global mean dynamic topography
computed from the combination of GRACE data, altimetry, and in situ measurements. J Geophys
Res 116:C07018. doi: 10.1029/2010JC006505
Romeiser R, Johannessen JA, Chapron B, Collard F, Kudryavtsev V, Runge H, Suchandt S (2010)
Direct surface current field imaging from space by along-track InSAR and conventional SAR.
In: Barale V, Gower JFR, Alberotanza L (eds) Oceanography from space, revisited. Springer,
Heidelberg, pp 73–91
Romeiser R, Thompson DR (2000) Numerical study on the along-track interferometric radar
imaging mechanism of oceanic surface currents. IEEE Trans Geosci Remote Sens 38(I):446–458
Rouault M, Penven P, Pohl B (2009) Warming in the Agulhas Current system since the 1980’s.
Geophys Res Lett 36:L12602
Rouault MJ, Mouche A, Collard F, Johannessen JA, Chapron B (2010) Mapping the Agulhas current
from space: an assessment of ASAR surface current velocities. J Geophys Res. Vol. 115, C10026
doi:10.1029/2009JC006050