Mesoscale
Mesoscale in the Solomon Sea
D. DRAK 12: Link EKE and circulation
E. Eddies from alti, DRK12 and gliders
A. Mean circulation
1. a. Mean SSH from RIO09.gif; b. Mean SSH from RIO09ssalti.gif
2. a. Mean SSH from DRAK12.gif; b. Mean SSH from DRAK025.gif
3. a. Mean curl (Quicksat).gif; b. Mean tau and curl (DRAK12).gif
A2. EOF analysis of SLA Aviso
Mode 1.gif; Mode 2.gif; Mode 3.gif; Mode 4.gif; Mode 5.gif
B. Seasonal cycle
1. a. rms SSH Aviso.gif; b. rms SSH DRAK12.gif
2. a. <MAR-MAY>.gif; b. <JUL-SEP>.gif
3. Tau and curl: <JAN-MAR> .gif; b. <MAY-JUL>.gif
C.EKE
The computation of EKE is based on two SLA product: the original gridded product and the high pass filtered (half power at 6 months) SLA signal.
1. Mean EKE: spatial distribution and temporal evolution
a. From the original SLA
1.SLA
After data processing: SLA.gif; F(t)Clim + SLA.gif; ; slarms fonction of time.gif
2. XYEKE.gif; F(t)Clim + EKEHF.gif
After data processing: XYEKE.gif; F(t)Clim + EKEHF.gif
EKE GT 400: XYEKE.gif; F(t)Clim + EKEHF.gif
EKE LT 350: XYEKE.gif; F(t)Clim + EKEHF.gif
b. From the high pass filtered SLA
1.SLAHF; slarms fonction of time.gif
After data processing: SLAHF.gif; F(t)Clim + SLAHF.gif; slarms fonction of time.gif
The first two EOF modes are discardes: SLAfltmd12.gif
2. XYEKE.gif; F(t)Clim + EKEHF.gif
After data processing: XYEKE.gif; F(t)Clim + EKEHF.gif
EKE nord 8°S: XYEKE.gif
c. From the SLA filtered from EOF modes 1-2
1. The first two EOF modes are discardes: SLAfltmd12.gif
3. XYEKE + time evolution.gif; F(t)Clim + EKEHF.gif
4. Time evolution depending on region
a. EKE.gif; EKE Sud.gif; EKE Nord.gif; EKE NordSud.gif; EKE NordNord.gif
c. Low frequency modulation.gif
2. Link SLA/EKE altimetry and model circulation
b. SLAhf rms/SW-UTW vectors.gif
c. EKEhf/SW.gif
D. DRAK 12: Link EKE and circulation
Attention: sossheig dérive: mean Solomon Sea in time.gif
Validatin of the model with current observation at TAO moorings: tao.gif
1. EKE
a. EKE surface layer (0-100).gif; EKE from SSH.gif; MKE.gif;
b. Mean EKE at the surface from: daily sampling.gif; monthly sampling.gif; annual sampling.gif
c. EKE from SSH high pass filtered:
EKE from sossheig when EOF mode 1 et 2 are suppressed.gif;
same with surface MKE overlaid.gif;
same with surface circulation overlaid.gif, same with deep circulation.gif
same with horizontal shear.gif
same with surface vorticity.gif
c.1 time evolution depending on area
a. EKE.gif; EKE Sud.gif; EKE Nord.gif; EKE NordSud.gif; EKE NordNord.gif
d. Thermocline layer (100-400).gif
frequency domain mean U spectrum.gif; frequency domain mean V spectrum.gif; frequency domain mean EKE spectrum.gif
f. EOF EKE analysis
1. at the surface: UV mode 1.gif; UV mode 2.gif; UV mode 3.gif
2. at the surface: UVhf mode 1.gif; UVhf mode 2.gif; UVhf mode 3.gif
3. at the surface: SSHeke mode 1.gif; SSHeke mode 2.gif; EKEssh mode 3.gif; EKEssh mode 4.gif
4. at the thermocline (100-400): UV mode 1.gif; UV mode 2.gif; UV mode 3.gif
g. Seasonal EKE: April-June.gif; October-November.gif
2. Velocity
a. Zonal sections: 10.5S.gif; 9S.gif; 7.5S.gif; 6.5S.gif
b. Meridional sections: 152E.gif; 153E.gif; 154E.gif; 155E.gif
c. Seasonal cycle of the SEC, NVJ and NQC.gif; Seasonal cycle of the SEC_U-V, NVJ, NQC, 9°S and Vitiaz.gif
d. Transports across the Solomon Sea.gif; Inflow transport.gif
3. SSH
a. SSH spectra: 149E-7S.gif ; 152E-8S.gif ; 153E-5S.gif; 154E-8.5S.gif; 155E-7.5S.gif; 155E-10S.gif; 157E-9S.gif
frequency domain mean spectrum.gif, zonal wavenumber mean spectrum.gif; meridional wavenumber mean spectrum.gif (in a 3°x3° box)
b. EOF SSH analysis (based on monthly sampling)
mode 1.gif; mode 2.gif; mode 3.gif; mode 4.gif; mode 5.gif; mode 6.gif
c. SSH filtered from EOF modes 1 and 2
4. Zonal sections:
a. 10.5S: EKE-V-rho.gif; ETS-V-DxRho.gif; DyPv-V-PV.gif
b. 8.1S: EKE-V-rho.gif; ETS-V-DxRho.gif; DyPv-V-PV.gif
c. 7 S: EKE-V-rho.gif; ETS-V-DxRho.gif; DyPv-V-PV.gif
d. 7 S: EKE-V-rho.gif; ETS-V-DxRho.gif; DyPv-V-PV.gif
a. saisonal shear.gif; Function of the area.gif (N: north of 9°S, NN: north of 6.5°S, NS: between 9-6.5°S, S: south of 9°S)
b. At 8°S: EKE-V.gif; EKE-vshear.gif; EKE-hshear.gif; <may-June>V-EKE-shear.gif; EKEHVshear 154E.gif
6. Low frequency modulation
a. time evolution.gif; seasonal and low frequency evolution.gif
b.. Low frequency modulation.gif
c. EKES-NVJ.gif; EKENN-SECU.gif
d. EKES Trsp SEC NVJ.gif; EKENN Trsp SEC Vitiaz.gif
E. Eddies from alti, DRK12 and gliders
2. Eddy tracking
a. AVISO: (CE: green, AE: blue, dist>250, dt >2months))
b. DRAKKAR12: (CE: green, AE: blue, dist>350, dt >1months))
3. Eddy characteristics
a. AVISO: Percentage of eddy function of lifespan.gif; DRK12: Percentage of eddy function of lifespan.gif
b. AVISO: Mean distance traveled function of lifespan.gif; DRK12: Mean distance traveled function of lifespan.gif
c. AVISO: Mean eddy EKE function of lifespan.gif
d. AVISO: Eddies occurence.gif
CE eddies: spatial distribution of all eddies.gif; distribution of eddy generation.gif; distribution of stationnary eddy generation.gif; distribution of propagative eddy generation.gif; distribution of final position.gif
AE eddies: spatial distribution of all eddies.gif; distribution of eddy generation.gif; distribution of final position.gif
e. Histogram:
CE stationary: Radius.gif; amplitude.gif; EKE.gif
CE propagative: Radius.gif; amplitude.gif; EKE.gif
CE: Radius.gif; amplitude.gif; EKE.gif; Distance.gif; lifespan.gif
AE: Radius.gif; amplitude.gif; EKE.gif; Distance.gif; lifespan.gif
4. Maps of eddy trajectory
a AVISO: . CE with long lifespan and short distance traveled.gif; DRK12: CE with long lifespan and short distance traveled.gif
b. AVISO: CE with long lifespan and long distance traveled.gif; DRK12: CE with long lifespan and long distance traveled.gif
c. AVISO: AE.gif; DRK12: AE.gif
5. Time evolution of eddy number
a. relation with EKEHF.gif; Stationnary CE filtered: relation with EKEHF.gif
b. Low frequency versus SOI and saisonal cycle versus EKEHFCL.gif; Stationnary CE filtered: LF + CL.gif
6. Colocalisation of eddies between altimetry and glider mission
a. mission03.gif; mission04.gif; mission05.gif; mission06.gif; mission07.gif; mission08.gif; mission09.gif; mission10.gif; mission11.gif; mission12.gif; mission13.gif; mission14.gif;
7. The eddies crossed by the glider
a. eddy_mission03.gif; eddy_mission05.gif; eddy_mission07.gif; eddy_mission08.gif; eddy_mission09.gif; eddy_mission11.gif; eddy_mission12a.gif; eddy_mission12b.gif; eddy_mission14.gif
8. TS relationship related to eddies
a. TS eddy m12b.gif; TS eddy m14.gif
9. Test on the cross track geostrophic velocity (Mission 5)
a.glider: Ucrtrck_ref.gif; Ucrtrck_z0.gif; Ucrtrck_abs_z0.gif; Ucrtrck_z0-150.gif; Ucrtrck_abs_z0-150.gif; Ucrtrck_abs_z50-150.gif
b. Alti: Ucrtrck_mean.gif; Ucrtrck_geo.gif; Ucrtrck_abs.gif
10. Cross track velocity for glider and alti
a. glider: mission1 (4).gif; mission2.gif; mission3.gif; mission4.gif; mission5.gif; mission6.gif; mission7.gif; mission8.gif; mission9.gif; mission10.gif
b. alti: mission1 (4).gif; mission2.gif; mission3.gif; mission4.gif; mission5.gif; mission6.gif; mission7.gif; mission8.gif; mission9.gif; mission10.gif
F. Eddies observed from glider
a. Cyclinic eddies
- Mission 7: one cyclonic eddy around 156°E 10°S
Detection of glider eddy from AVISO:
Comparison of cross track current: ucrtrck_gld7.gif; ucrtrack_aviso7.gif;
MADT versus hdyn(z=700/75).gif
AVISO eddies.gif (plot of aviso eddies with a lifespan higher than 20 jours around the glider mission (+- 20 days))
Cyclonic eddy around 156°E 10°S, km: 145:299, days:18-25/11/2008: CE_glid7.gif
Eddy characteristic from glider:
T glider.gif; S glider.gif; U glider.gif: Uabs glider.gif
Eddies from DRK12 crossing the glider trajectory at the place where the eddy is observed:
15 eddies from DRAKKAR are selected: their trajectory.gif
Eddy N° 185: trajectory.gif; On glider section: Tdrk.gif, Sdrk.gif, ucros_drk.gif
- Mission 11: one cyclonic eddy around 156.5°E 9.5°S
Detection of glider eddy from AVISO:
Comparison of cross track current: ucrtrck_gld11.gif; ucrtrack_aviso11.gif;
MADT versus hdyn(z=700/75).gif
AVISO eddies.gif (plot of aviso eddies with a lifespan higher than 20 jours around the glider mission (+- 20 days))
Cyclonic eddy around 156.5°E 9.5°S, km: 74:226, days:18-25/04/2010: CE_glid11.gif
Eddy characteristic from glider:
T glider.gif; S glider.gif; U glider.gif: Uabs glider.gif
Eddies from DRK12 crossing the glider trajectory at the place where the eddy is observed:
11 eddies from DRAKKAR are selected: their trajectory.gif
Eddy N° 198: trajectory.gif; On glider section: Tdrk.gif, Sdrk.gif, ucros_drk.gif
Eddy N° 210: trajectory.gif; On glider section: Tdrk.gif, Sdrk.gif, ucros_drk.gif
Eddy N° 270: trajectory.gif; On glider section: Tdrk.gif, Sdrk.gif, ucros_drk.gif
- Mission 12: two cyclonic eddies in the northern basin
Detection of glider eddy from AVISO:
Comparison of cross track current: ucrtrck_gld12.gif; ucrtrack_aviso12.gif;
MADT versus hdyn(z=700/75).gif
AVISO eddies.gif (plot of aviso eddies with a lifespan higher than 20 jours around the glider mission (+- 20 days))
Cyclonic (stationnary) eddy around 152°E 6.5°S, km: 673:1202, days:10-31/05/2010: CE1_glid12.gif
Cyclonic (propagative) eddy around 151.5°E 6.5°S, km: 1978:2140, days:12-19/07/2010: CE2_glid12.gif
Eddy characteristic from glider:
T glider.gif; S glider.gif; U glider.gif: Uabs glider.gif
Eddies 1 from DRK12 crossing the glider trajectory at the place where the eddy is observed:
15 eddies from DRAKKAR are selected: their trajectory.gif
Eddy N° 12: trajectory.gif; On glider section: Tdrk.gif, Sdrk.gif, ucros_drk.gif
Eddy N° 20: trajectory.gif; On glider section: Tdrk.gif, Sdrk.gif, ucros_drk.gif
Eddy N° 110: trajectory.gif; On glider section: Tdrk.gif, Sdrk.gif, ucros_drk.gif
Eddy N° 339: trajectory.gif; On glider section: Tdrk.gif, Sdrk.gif, ucros_drk.gif
Eddies 2 from DRK12 crossing the glider trajectory at the place where the eddy is observed:
15 eddies from DRAKKAR are selected: their trajectory.gif
Eddy N° 73: trajectory.gif; On glider section: Tdrk.gif, Sdrk.gif, ucros_drk.gif
Eddy N° 161: trajectory.gif; On glider section: Tdrk.gif, Sdrk.gif, ucros_drk.gif
Eddy N° 189: trajectory.gif; On glider section: Tdrk.gif, Sdrk.gif, ucros_drk.gif
Eddy N° 288: trajectory.gif; On glider section: Tdrk.gif, Sdrk.gif, ucros_drk.gif
Eddy N° 342: trajectory.gif; On glider section: Tdrk.gif, Sdrk.gif, ucros_drk.gif
G. Figures for a paper
a. Mean circulation from DRAKKAR12.gif
b . Absolute cross track surface geostrophic velocity from altimetry.gif; Absolute cross track surface geostrophic velocity from glider.gif; Contribution from the MSSH Rio09.gif
H. 3D eddies gliders
Location of the different eddies observed by gliders.gif
1. Mission03: One cyclonic eddy
a. Altimetric and glider surface current.gif
b. Dynamic height along track signature.gif
c along track signature of: T.gif; S.gif, R.gif, U.gif, Uabs.gif
d. eddies signature in anomalies of: Ta.gif; Sa.gif, Rhoa.gif; U.gif
2. Mission05: One anticyclonic eddy
GLIDER
a. Altimetric and glider surface current.gif
b. Dynamic height along track signature.gif
c along track signature of: T.gif; S.gif, R.gif, U.gif, Uabs.gif
T.gif; S.gif function of sigma
d. eddies signature in anomalies of: Ta.gif; Sa.gif, Rhoa.gif; U.gifTsig-a.gif; Ssig-a.gif function of sigma
c. Composite
anomaly relative to monthly mean: Talf.gif, Salf.gif, Rhoalf.gif; Tsigalf.gif; Ssigalf.gif
anomaly relative to the edges: Ta.gif, Sa.gif, Rhoa.gif; Tsiga.gif; Ssiga.gif
3. Mission07: One cyclonic eddy
GLIDER
a. Altimetric and glider surface current.gif
b. Dynamic height along track signature.gif
c along track signature of: T.gif; S.gif, R.gif, U.gif, Uabs.gif function of depth
T.gif; S.gif function of sigma
d. eddies signature in anomalies of: Ta.gif; Sa.gif, Rhoa.gif; U.gif function of depth
Tsig-a.gif; Ssig-a.gif function of sigma
a. selectededdies.gif (15 eddies)
b. example eddy6: Eddy.gif ; U.gif; Ta.gif, Sa.gif
Ra.gif; Ralf.gif; Tasig.gif; Tasiglf.gif; Sasig.gif; Sasiglf.gif
example eddy210: Eddy.gif ; U.gif; Ta.gif, Sa.gif
c. Composite
anomaly relative to monthly mean: Talf.gif, Salf.gif, (Rhoalf.gif; Tsigalf.gif; Ssigalf.gif)
anomaly relative to the edges: ( Ta.gif, Sa.gif, Rhoa.gif; Tsiga.gif; Ssiga.gif )
4. Mission 11: Two cyclonic eddies
a. Dynamic height along track signature.gif
b. along track signature of: T.gif; S.gif, R.gif, U.gif, Uabs.gif
Cyclone 1:
c1. Altimetric and glider surface current.gif
d.1 eddies signature in anomalies of: Ta.gif; Sa.gif, Rhoa.gif; Ugeo.gif
Cyclone 2:
c2. Altimetric and glider surface current.gif
d2. eddies signature in anomalies of: Ta.gif; Sa.gif, Rhoa.gif; U.gif
5. Mission 12: One cyclonic eddy
GLIDER
a. Dynamic height along track signature.gif
b. along track signature of: T.gif; S.gif, R.gif, U.gif, Uabs.gif
T.gif; S.gif function of sigma
c. Altimetric and glider surface current.gif
d. eddies signature in anomalies of: Ta.gif; Sa.gif, Rhoa.gif; U.gif
Tsig-a.gif; Ssig-a.gif function of sigma
a. selectededdies.gif (15 eddies)
b example eddy110: Eddy.gif ; U.gif; Ta.gif, Sa.gif
c. Composite
anomaly relative to monthly mean: Talf.gif, Salf.gif, Rhoalf.gif; Tsigalf.gif; Ssigalf.gif
anomaly relative to low pass monthly mean : Talf.gif, Salf.gif,
anomaly relative to the edges: Ta.gif, Sa.gif, Rhoa.gif; Tsiga.gif; Ssiga.gif
6. Mission 13: One cyclonic eddy
a. Dynamic height along track signature.gif
b. along track signature of: T.gif; S.gif, R.gif, U.gif, Uabs.gif
c. Altimetric and glider surface current.gif
d. eddies signature in anomalies of: Ta.gif; Sa.gif, Rhoa.gif; U.gif
7. Mission 14: One cyclonic eddy
a. Dynamic height along track signature.gif
b. along track signature of: T.gif; S.gif, R.gif, U.gif, Uabs.gif
c. Altimetric and glider surface current.gif
d. eddies signature in anomalies of: Ta.gif; Sa.gif, Rhoa.gif; U.gif
I. 3D EDDIES DRK12
A.. propagative cyclonic eddy
A.1 Mean characteristic
a. eddy tracks.gif b. mean vertical eddy signature (okbw, swirl, amp, vort).gif
c. rms vertical eddy signature (okbw, swirl, amp, vort).gif
A.2 example of eddy 309 at a given time (jt=4):
a. eddytrack309_jt4hdfield-swirl.gif; b. eddytrack309_jt4okbwfield.gif
c. Vzonalsection_jt4.gif; d. vertical eddy309 (okbw,swirl,amp,vort).gif, e. OKBWzonalsection.gif
A.3 All eddies
a. depth of efficiency of the eddies based on non linearity.gif
b. Temperature anomaly.gif; c. Salinity anomaly.gif d. Mean Ta Sa.gif
e. Sigma T anomaly.gif; f. Sigma S anomaly.gif g. Mean sigma Ta Sa.gif
A.4 Example of along track eddy 208
a. Ta Sa function of z.gif; b. Ta Sa function of sigma.gif; c. TS diagram.gif
d. T at sigma23.3.gif; e. T at z132m.gif; f. S at at z 132m.gif; g. NonLinearity.gif
2. Stationnary cyclonic eddy
a. eddy tracks.gif b. mean vertical eddy signature (okbw, swirl, amp, vort).gif
c. rms vertical eddy signature (okbw, swirl, amp, vort).gif
example of eddy 12 (jt=4):
d. eddytrack309_jt4hdfield-swirl.gif; e. eddytrack309_jt4okbwfield.gif
f. Vzonalsection_jt4.gif; g. vertical eddy309 (okbw,swirl,amp,vort).gif
All eddies
h. depth of efficiency of the eddies based on non linearity.gif
i. Temperature anomaly.gif; j. Salinity anomaly.gif
k. Sigma T anomaly.gif; l. Sigma S anomaly.gif
3. anticyclonic eddy
A.1 Mean characteristic
a. eddy tracks.gif b. mean vertical eddy signature (okbw, swirl, amp, vort).gif
c. rms vertical eddy signature (okbw, swirl, amp, vort).gif
A.2 example of eddy 12 at a given time (jt=4):
a. eddytrack120_jt4hdfield-swirl.gif; b. eddytrack120_jt4okbwfield.gif
c. Vzonalsection_jt4.gif; d. vertical eddy309 (okbw,swirl,amp,vort).gif, e. OKBWzonalsection.gif
A.3 All eddies
a. depth of efficiency of the eddies based on non linearity.gif
b. Temperature anomaly.gif; c. Salinity anomaly.gif; d. Mean Ta Sa.gif
e. Sigma T anomaly.gif; f. Sigma S anomaly.gif; g. Mean sigma Ta Sa.gif
A.4 Example of along track eddy 70
a. Ta Sa function of z.gif; b. Ta Sa function of sigma.gif; c. TS diagram.gif
d. T at sigma23.3.gif; e. T at z132m.gif; f. S at at z 132m.gif; g. NonLinearity.gif
4.. Eddies function of time.gif