Supplement of ECCO version 4: an integrated ... - Geosci. Model Dev.

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Sep 28, 2015 - fit to data fit to in situ data fit to altimeter data (RADS) fit to sst data fit to grace r4 data fit to seaice data ..... Florida Strait W1 (>0 to Atlantic).
Supplement of Geosci. Model Dev., 8, 3071–3104, 2015 http://www.geosci-model-dev.net/8/3071/2015/ doi:10.5194/gmd-8-3071-2015-supplement © Author(s) 2015. CC Attribution 3.0 License.

Supplement of ECCO version 4: an integrated framework for non-linear inverse modeling and global ocean state estimation G. Forget et al. Correspondence to: G. Forget ([email protected])

The copyright of individual parts of the supplement might differ from the CC-BY 3.0 licence.

Standard analysis for ECCO v4, release 1 state estimate.

September 28, 2015

Table of contents

README fit to data fit to in situ data fit to altimeter data (RADS) fit to sst data fit to grace r4 data fit to seaice data volume, heat and salt transports barotropic streamfunction meridional streamfunction meridional streamfunction (time series) meridional heat transport meridional freshwater transport meridional salt transport meridional transports (time series) transects transport

mean and variance maps sea surface height 3D state variables air-sea heat flux air-sea freshwater flux surface wind stress global, zonal, regional averages zonal mean tendencies equatorial sections global mean properties zonal mean properties zonal mean properties (surface) seaice time series budgets : volume, heat and salt (top to bottom) budgets : volume, heat and salt (100m to bottom) mixed layer depth fields

README

Depicted solution : - name: ECCO v4, release 1 state estimate (1992–2011) - source : Ga¨ el Forget (MIT/AER/JPL ECCO group) - reference : Forget et al., 2015 (doi:10.5194/gmdd-8-3653-2015) - contact : [email protected] Solution history : - r4it11 : reduce background vertical viscosity (GF) - r4it10 : cleanup control vector adjustments (GF) - r4it9 : optimization of global mean sea level alone (GF) - r4it0-8 : full adjoint iterations, omitting global mean sea level altimetry constraint (GF) Release history : - 2014/02/04 : initial release of ECCO v4, release 1 (GF) - domain decomposed in 90x90 tiles (13 of them) - CF-1.6 ncetcdf files (using write write nctiles.m)

fit to in situ data

Figure : Time mean misfit (model-data) for in situ profiles, at various depths (rows), for T (left; in K) and S (right; in psu).

mean cost for T: 1.62 (median: 0.542) 0 200 400 600 800 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 1995 2000 2005 2010

8

6

4

2

0

depth (in m)

depth (in m)

fit to in situ data mean cost for S: 1.6 (median: 0.567) 0 200 400 600 800 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 1995 2000 2005 2010

pdf 0.5

5

2

0

0 0.2

0.4 normalized misfit

normalized misfit

0.3

0.3 0 0.2

0.1

0 latitude

4

0.5

0.4

−50

6

pdf

5

−5

8

50

0

0.1 −5

−50

0 latitude

50

0

Figure : Cost function (top) for in situ profiles, as a function of depth and time. Distribution of normalized misfits (bottom) as a function of latitude. For T (left) and S (right).

fit to in situ data normalized misfit

atlExt_25N90N_misDisT 5

pacExt_25N90N_misDisT 5 0.4 0.3

0

0.2

2000

2010

0

normalized misfit

atlExt_25S25N_misDisT 5

0.2

−5

2000

2010

0.2

2010

0

atlExt_90S25S_misDisT 5

0.2

0.2

−5

2000

2010

2000

2010

0

2000

2010

0.3 0.2

0

0.1 −5

2000

2010

0.3 0.2

2000

2010

0

indExt_90S25S_misDisT 5 0.4 0.3

0

0.2

0.1 −5

0

0.4 0

0.4 0

0.1 −5

0.1 −5

0.1

pacExt_90S25S_misDisT 5

0.3

0.2

indExt_25S25N_misDisT 5

0.3

0.4 0

0.3

0.4 0

0.1 2000

0

pacExt_25S25N_misDisT 5

0.3

0.4 0

0.1

0.4 0

−5

normalized misfit

0.3

0

0.1 −5

arct_25N90N_misDisT 5 0.4

0

0.1 −5

2000

2010

0

Figure : Distribution of normalized misfits per basin (panel) as a function of latitude, for T

fit to in situ data normalized misfit

atlExt_25N90N_misDisS 5

pacExt_25N90N_misDisS 5 0.4 0.3

0

0.2

2000

2010

0

normalized misfit

atlExt_25S25N_misDisS 5

0.2

−5

2000

2010

0.2

2010

0

atlExt_90S25S_misDisS 5

0.2

0.2

−5

2000

2010

2000

2010

0

2000

2010

0.3 0.2

0

0.1 −5

2000

2010

0.3 0.2

2000

2010

0

indExt_90S25S_misDisS 5 0.4 0.3

0

0.2

0.1 −5

0

0.4 0

0.4 0

0.1 −5

0.1 −5

0.1

pacExt_90S25S_misDisS 5

0.3

0.2

indExt_25S25N_misDisS 5

0.3

0.4 0

0.3

0.4 0

0.1 2000

0

pacExt_25S25N_misDisS 5

0.3

0.4 0

0.1

0.4 0

−5

normalized misfit

0.3

0

0.1 −5

arct_25N90N_misDisS 5 0.4

0

0.1 −5

2000

2010

0

Figure : Distribution of normalized misfits per basin (panel) as a function of latitude, for S

fit to altimeter data (RADS)

Figure : mean dynamic topography prior uncertainty (cm)

fit to altimeter data (RADS)

Figure : log(prior error variance) – sea level anomaly (m2 ) – large space/time scales

fit to altimeter data (RADS)

Figure : log(prior error variance) – sea level anomaly (m2 ) – pointwise

fit to altimeter data (RADS)

Figure : mean dynamic topography misfit (cm)

fit to altimeter data (RADS)

Figure : modeled-observed log(variance) – sea level anomaly (m2 ) – large space/time scales

fit to altimeter data (RADS)

Figure : modeled-observed log(variance) – sea level anomaly (m2 ) – pointwise

fit to altimeter data (RADS)

Figure : modeled-observed cost – mean dynamic topography

fit to altimeter data (RADS)

Figure : modeled-observed cost – sea level anomaly – large space/time scales

fit to altimeter data (RADS)

Figure : modeled-observed cost – sea level anomaly – pointwise

fit to altimeter data (RADS)

Figure : observed log(variance) – sea level anomaly (m2 ) – large space/time scales

fit to altimeter data (RADS)

Figure : observed log(variance) – sea level anomaly (m2 ) – pointwise

fit to altimeter data (RADS)

Figure : modeled log(variance) – sea level anomaly (m2 ) – large space/time scales

fit to altimeter data (RADS)

Figure : modeled log(variance) – sea level anomaly (m2 ) – pointwise

fit to sst data

Figure : modeled-Reynolds rms – sea surface temperature (K)

fit to sst data

Figure : modeled-REMSS rms – sea surface temperature (K)

fit to sst data

Figure : ECCO and Reynolds zonal mean sst anomalies (K)

fit to sst data

Figure : ECCO and REMSS zonal mean sst anomalies (K)

fit to grace r4 data

Figure : modeled-observed rms – bottom pressure (cm)

fit to grace r4 data

Figure : rms modeled – bottom pressure (cm)

fit to grace r4 data

Figure : rms observed – bottom pressure (cm)

fit to grace r4 data

Figure : Cost function

fit to seaice data

Figure : modeled-observed rms – sea ice concentration

fit to seaice data

Figure : observed std – sea ice concentration

fit to seaice data

Figure : modelled std – sea ice concentration

fit to seaice data

Figure : ECCO (left) and NSIDC (right, gsfc bootstrap) ice concentration in March (top) and September (bottom).

fit to seaice data

Figure : ECCO (left) and NSIDC (right, gsfc bootstrap) ice concentration in March (top) and September (bottom).

fit to seaice data 13

x 10

13

Northern Hemisphere 2

1.8

1.6

1.6

1.4

1.4

1.2

1.2 2

1.8

1

m

m

2

2

0.8

0.6

0.6

0.4

0.4

0.2

0.2

1995

2000

2005

2010

Southern Hemisphere

1

0.8

0

x 10

0

1995

2000

2005

2010

Figure : ECCO (blue) and NSIDC (red, gsfc bootstrap) ice concentration in March and September in Northern Hemisphere (left) and Southern Hemisphere (right)

fit to seaice data 12

5

x 10

11

Entire Southern Ocean 4

2

2

20E to 90E

2 1

1 0

6

x 10

3

3

m

m2

4

1995

2000

11

90E to 160E

x 10

2005

0

2010

1995 11

15

2000

2005

2010

160E to −130E

m

2

10

m2

4

x 10

2

5

0

1995 11

6

x 10

2000

2005

0

2010

−130E to −62E 2

2000

−62E to 20E

2005

1995

2000

2010

1.5 2

m

m2

4 2 0

1995 12

x 10

1 0.5

1995

2000

2005

2010

0

2005

2010

Figure : ECCO (blue) and NSIDC (red, gsfc bootstrap) ice concentration in March per Southern Ocean sector

fit to seaice data 13

1.7

x 10

12

Entire Southern Ocean 4 3.5

m

1.6

3

1.55 1.5

2

1995

2000

12

90E to 160E

x 10

2005

2.5

2010

4.5

2000

2005

2010

160E to −130E

m2

m2

x 10

4

1.6

3.5

1.4 1.2

1995 12

x 10

2000

2005

3

2010

−130E to −62E 7

1995

2000

12

−62E to 20E

1995

2000

x 10

2005

2010

6.5 m2

m2

2 1.5 1

1995 12

1.8

2.5

20E to 90E

m2

2

1.65

x 10

6 5.5

1995

2000

2005

2010

5

2005

2010

Figure : ECCO (blue) and NSIDC (red, gsfc bootstrap) ice concentration in September per Southern Ocean sector

barotropic streamfunction

Figure : 1992-2011 mean – barotropic streamfunction (Sv)

barotropic streamfunction

Figure : 1992-2011 standard deviation – barotropic streamfunction (Sv)

meridional streamfunction

Figure : 1992-2011 mean – overturning streamfunction (Sv)

meridional streamfunction

Figure : 1992-2011 mean – overturning streamfunction incl. GM (Sv)

meridional streamfunction

Figure : 1992-2011 mean – Atlantic overturning streamfunction (Sv)

meridional streamfunction

Figure : 1992-2011 mean – Pac+Ind overturning streamfunction (Sv)

meridional streamfunction

Figure : 1992-2011 standard deviation – overturning streamfunction (Sv)

meridional streamfunction

Figure : 1992-2011 standard deviation – Atlantic overturning streamfunction (Sv)

meridional streamfunction (time series) annual global overturning at ≈ 1000m depth (Sv) 20 25N 35N 45N 55N

18

16

14

12

10

8

6

4

2

0 1992

1994

1996

1998

2000

2002

2004

2006

2008

2010

2012

Figure : annual global overturning at select latitudes at ≈ 1000m depth

meridional streamfunction (time series) annual atlantic overturning at ≈ 1000m depth 20 25N 35N 45N 55N

18

16

14

12

10

8

6

4

2

0 1992

1994

1996

1998

2000

2002

2004

2006

2008

2010

2012

Figure : annual Atlantic overturning at select latitudes at ≈ 1000m depth (Sv)

meridional heat transport Meridional Heat Transport (in PW) 2 1.5 1 0.5 0 −0.5 −1 global Atlantic Pacific+Indian

−1.5 −2

−80

−60

−40

−20

0

20

40

60

80

Figure : 1992-2011 mean – meridional heat transport (PW)

meridional heat transport Meridional Heat Transport (in PW) 4 global Atlantic Pacific+Indian

3.5 3 2.5 2 1.5 1 0.5 0

−80

−60

−40

−20

0

20

40

60

80

Figure : 1992-2011 standard deviation – meridional heat transport (PW)

meridional freshwater transport Meridional Freshwater Transport (in Sv) 2 global Atlantic Pacific+Indian

1.5

1

0.5

0

−0.5

−1

−1.5

−80

−60

−40

−20

0

20

40

60

80

Figure : 1992-2011 mean – meridional freshwater transport (Sv)

meridional freshwater transport Meridional Freshwater Transport (in Sv) 2 global Atlantic Pacific+Indian

1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0

−80

−60

−40

−20

0

20

40

60

80

Figure : 1992-2011 standard deviation – meridional freshwater transport (Sv)

meridional salt transport Meridional Salt Transport (in psu.Sv) 50 global Atlantic Pacific+Indian

40 30 20 10 0 −10 −20 −30 −40 −50

−80

−60

−40

−20

0

20

40

60

80

Figure : 1992-2011 mean – meridional salt transport (psu.Sv)

meridional salt transport Meridional Salt Transport (in psu.Sv) 60 global Atlantic Pacific+Indian

50

40

30

20

10

0

−80

−60

−40

−20

0

20

40

60

80

Figure : 1992-2011 standard deviation – meridional salt transport (psu.Sv)

meridional transports (time series)

Figure : meridional heat transport (PW, annual mean)

meridional transports (time series)

Figure : meridional freshwater transport (Sv, annual mean)

meridional transports (time series)

Figure : meridional salt transport (psu.Sv, annual mean)

transects transport Bering Strait (>0 to Arctic)

Davis Strait (>0 to Arctic)

3 2

1 (mean = 1.1 Sv)

0

1

−1

0

−2

−1

1995

2000

2005

2010

−3

Denmark Strait (>0 to Arctic)

−2 (mean = −5.68 Sv)

−4 −6 1995

2000

2005

2010

2

1995

2000

2005

2010

Iceland Faroe (>0 to Arctic)

8 6 4 2 0

Faroe Scotland (>0 to Arctic)

4

(mean = −1.32 Sv)

(mean = 4.11 Sv)

1995

2000

2005

2010

Scotland Norway (>0 to Arctic)

0.5 (mean = 1.66 Sv)

(mean = 0.02 Sv)

0

0

−2 −4

1995

2000

2005

2010

−0.5

1995

2000

2005

2010

Figure : volume transports entering the Arctic (Sv, annual mean)

transects transport Florida Strait (>0 to Atlantic)

40 35

Florida Strait W1 (>0 to Atlantic)

40 (mean = 29.45 Sv)

35

30

30

25

25

20

1995

2000

2005

2010

20

Florida Strait E1 (>0 to Atlantic)

3 2

1995

2000

2005

2010

Florida Strait E2 (>0 to Atlantic)

2 (mean = 1.79 Sv)

0

1

−2

0

−4

−1

(mean = 27.45 Sv)

1995

2000

2005

2010

−6

(mean = −3.79 Sv)

1995

2000

2005

2010

Figure : volume transports entering the Atlantic (Sv, annual mean)

transects transport Gibraltar Overturn (upper ocean transport towards Med.)

1.1 (mean = 0.72 Sv)

1 0.9 0.8 0.7 0.6 0.5 0.4

1994 1996 1998 2000 2002 2004 2006 2008 2010

Figure : Gibraltar Overturn (Sv, annual mean)

transects transport Drake Passage (>0 westward)

180

Madagascar Antarctica (>0 westward)

200 (mean = 151.71 Sv)

(mean = 176.42 Sv)

160

180

140

160

120

1995

2000

2005

2010

140

Madagascar Channel (>0 westward)

−10

2000

2005

2010

Australia Antarctica (>0 westward)

200 (mean = −23.62 Sv)

(mean = 168.22 Sv)

−20

180

−30

160

−40

1995

1995

2000

2005

2010

140

1995

2000

2005

2010

Figure : ACC volume transports (Sv, annual mean)

transects transport Indonesian Throughflow (>0 toward Indian Ocean)

25

(mean = 15.76 Sv)

20

15

10

5

1994 1996 1998 2000 2002 2004 2006 2008 2010

Figure : Indonesian Throughflow (Sv, annual mean)

sea surface height

Figure : 1992-2011 mean – sea surface height (EXCLUDING ice, in m)

sea surface height

Figure : 1992-2011 mean – sea surface height (INCLUDING ice, in m)

sea surface height

Figure : 1992-2011 standard deviation – sea surface height (EXCLUDING ice, in m)

sea surface height

Figure : 1992-2011 standard deviation – sea surface height (INCLUDING ice, in m)

3D state variables

Figure : 1992-2011 mean – temperature (in degC) at 5m

3D state variables

Figure : 1992-2011 standard deviation – temperature (in degC) at 5m

3D state variables

Figure : 1992-2011 mean – temperature (in degC) at 105m

3D state variables

Figure : 1992-2011 standard deviation – temperature (in degC) at 105m

3D state variables

Figure : 1992-2011 mean – temperature (in degC) at 300m

3D state variables

Figure : 1992-2011 standard deviation – temperature (in degC) at 300m

3D state variables

Figure : 1992-2011 mean – temperature (in degC) at 910m

3D state variables

Figure : 1992-2011 standard deviation – temperature (in degC) at 910m

3D state variables

Figure : 1992-2011 mean – temperature (in degC) at 1914m

3D state variables

Figure : 1992-2011 standard deviation – temperature (in degC) at 1914m

3D state variables

Figure : 1992-2011 mean – temperature (in degC) at 3581m

3D state variables

Figure : 1992-2011 standard deviation – temperature (in degC) at 3581m

3D state variables

Figure : 1992-2011 mean – salinity (in psu) at 5m

3D state variables

Figure : 1992-2011 standard deviation – salinity (in psu) at 5m

3D state variables

Figure : 1992-2011 mean – salinity (in psu) at 105m

3D state variables

Figure : 1992-2011 standard deviation – salinity (in psu) at 105m

3D state variables

Figure : 1992-2011 mean – salinity (in psu) at 300m

3D state variables

Figure : 1992-2011 standard deviation – salinity (in psu) at 300m

3D state variables

Figure : 1992-2011 mean – salinity (in psu) at 910m

3D state variables

Figure : 1992-2011 standard deviation – salinity (in psu) at 910m

3D state variables

Figure : 1992-2011 mean – salinity (in psu) at 1914m

3D state variables

Figure : 1992-2011 standard deviation – salinity (in psu) at 1914m

3D state variables

Figure : 1992-2011 mean – salinity (in psu) at 3581m

3D state variables

Figure : 1992-2011 standard deviation – salinity (in psu) at 3581m

3D state variables

Figure : 1992-2011 mean – vertical velocity (in mm/year) at 15m

3D state variables

Figure : 1992-2011 standard deviation – vertical velocity (in mm/year) at 15m

3D state variables

Figure : 1992-2011 mean – vertical velocity (in mm/year) at 105m

3D state variables

Figure : 1992-2011 standard deviation – vertical velocity (in mm/year) at 105m

3D state variables

Figure : 1992-2011 mean – vertical velocity (in mm/year) at 300m

3D state variables

Figure : 1992-2011 standard deviation – vertical velocity (in mm/year) at 300m

3D state variables

Figure : 1992-2011 mean – vertical velocity (in mm/year) at 910m

3D state variables

Figure : 1992-2011 standard deviation – vertical velocity (in mm/year) at 910m

3D state variables

Figure : 1992-2011 mean – vertical velocity (in mm/year) at 1914m

3D state variables

Figure : 1992-2011 standard deviation – vertical velocity (in mm/year) at 1914m

3D state variables

Figure : 1992-2011 mean – vertical velocity (in mm/year) at 3581m

3D state variables

Figure : 1992-2011 standard deviation – vertical velocity (in mm/year) at 3581m

air-sea heat flux

Figure : 1992-2011 mean – QNET to ocean+ice (W/m2 )

air-sea heat flux

Figure : 1992-2011 mean – QNET to ocean (W/m2 )

air-sea heat flux

Figure : 1992-2011 standard deviation – QNET to ocean+ice (W/m2 )

air-sea heat flux

Figure : 1992-2011 standard deviation – QNET to ocean (W/m2 )

air-sea freshwater flux

Figure : 1992-2011 mean – E-P-R from ocean+ice (mm/day)

air-sea freshwater flux

Figure : 1992-2011 mean – E-P-R from ocean (mm/day)

air-sea freshwater flux

Figure : 1992-2011 standard deviation – E-P-R to ocean+ice (W/m2 )

air-sea freshwater flux

Figure : 1992-2011 standard deviation – E-P-R to ocean (W/m2 )

surface wind stress

Figure : 1992-2011 mean – zonal wind stress (N/m2 )

surface wind stress

Figure : 1992-2011 mean – meridional wind stress (N/m2 )

surface wind stress

Figure : 1992-2011 standard deviation – tauZ (W/m2 )

surface wind stress

Figure : 1992-2011 standard deviation – tauM (W/m2 )

zonal mean tendencies

Figure : 1992-2011 , last year minus first year – zonal mean temperature (degC; top) and salinity (psu; bottom)

equatorial sections

Figure : 1992-2011 mean – equator temperature (degC;top) and zonal velocity (m/s;bottom)

global mean properties Global Mean Sea level (m, uncorrected free surface) 0.2 monthly annual mean

0.15 0.1 0.05 0

1994

1996

1998

2000

2002

2004

2006

2008

2010

Global Mean Temperature (degC) 3.61 monthly annual mean

3.6 3.59 3.58

1994

1996

1998

2000

2002

2004

2006

2008

2010

Global Mean Salinity (psu) 34.727 monthly annual mean

34.726 34.725 34.724

1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : global mean T (degC; top) and S (psu; bottom)

global mean properties

Figure : global mean temperature (K; top) and salinity (psu; bottom) minus first year

zonal mean properties

Figure : mean temperature (top; K) and salinity (bottom; psu) minus first year at lat ≈ -75

zonal mean properties

Figure : mean temperature (top; K) and salinity (bottom; psu) minus first year at lat ≈ -65

zonal mean properties

Figure : mean temperature (top; K) and salinity (bottom; psu) minus first year at lat ≈ -45

zonal mean properties

Figure : mean temperature (top; K) and salinity (bottom; psu) minus first year at lat ≈ -25

zonal mean properties

Figure : mean temperature (top; K) and salinity (bottom; psu) minus first year at lat ≈ 0

zonal mean properties

Figure : mean temperature (top; K) and salinity (bottom; psu) minus first year at lat ≈ 25

zonal mean properties

Figure : mean temperature (top; K) and salinity (bottom; psu) minus first year at lat ≈ 45

zonal mean properties

Figure : mean temperature (top; K) and salinity (bottom; psu) minus first year at lat ≈ 65

zonal mean properties

Figure : mean temperature (top; K) and salinity (bottom; psu) minus first year at lat ≈ 75

zonal mean properties (surface)

Figure : zonal mean temperature (degC; top) and salinity (psu; bottom) minus first year (psu) at 5m depth

zonal mean properties (surface)

Figure : zonal mean SSH (m, uncorrected free surface) minus first year, including ice (top) and below ice (bottom)

zonal mean properties (surface)

Figure : zonal mean ice concentration (no units) and mixed layer depth (m)

seaice time series 12

2

Northern Hemisphere ice cover (in 10 m ) 20 monthly annual mean 15

10

5

0

1994

1996

1998

2000

2002

2004

2006 12

2008

2010

2

Southern Hemisphere ice cover (in 10 m ) 25 monthly annual mean

20 15 10 5 0

1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : sea ice cover (in 1012 m2 ) in northern (top) and southern (bottom) hemisphere

seaice time series Northern Hemisphere ice volume (in 10

12m3

)

50 monthly annual mean

40 30 20 10 0

1994

1996

1998

2000

2002

2004

2006 12

2008

2010

3

Southern Hemisphere ice volume (in 10 m ) 15 monthly annual mean 10

5

0

1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : sea ice volume (in 1012 m3 ) in northern (top) and southern (bottom) hemisphere

seaice time series Northern Hemisphere snow volume (in 1012m3) 5 monthly annual mean

4 3 2 1 0

1994

1996

1998

2000

2002

2004

2006 12

2008

2010

3

Southern Hemisphere snow volume (in 10 m ) 4 monthly annual mean 3

2

1

0

1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : snow volume (in 1012 m3 ) in northern (top) and southern (bottom) hemisphere

seaice time series Northern Hemisphere ice thickness (in m) 5 monthly annual mean

4 3 2 1 0

1994

1996

1998

2000

2002

2004

2006

2008

2010

Southern Hemisphere ice thickness (in m) 2 monthly annual mean 1.5

1

0.5

0

1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : sea ice thickness (in m) in northern (top) and southern (bottom) hemisphere

seaice time series Northern Hemisphere snow thickness (in m) 0.4 monthly annual mean 0.3

0.2

0.1

0

1994

1996

1998

2000

2002

2004

2006

2008

2010

Southern Hemisphere snow thickness (in m) 0.25 monthly annual mean

0.2 0.15 0.1 0.05 0

1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : snow thickness (in m) in northern (top) and southern (bottom) hemisphere

budgets : volume, heat and salt (top to bottom) 2

Budget Global Mean Mass (incl. ice); in kg/m ; residual : 2.0e−12 200 content

100

vert. div.

hor. div.

residual

bp

0 −100 −200

1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Northern Mean Mass (incl. ice); in kg/m2; residual : 8.3e−12 200 content

100

vert. div.

hor. div.

residual

bp

0 −100 −200

1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Southern Mean Mass (incl. ice); in kg/m2; residual : 3.2e−12 200 content

100

vert. div.

hor. div.

residual

bp

0 −100 −200

1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : 1992-2011 global (upper) north (mid) and south (lower), mass budget (ocean+ice) in kg/m2 .

budgets : volume, heat and salt (top to bottom) 2

Budget Global Mean Mass (only ice); in kg/m ; residual : 4.9e−14 50

content

vert. div.

hor. div.

residual

bp

0

−50 1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Northern Mean Mass (only ice); in kg/m2; residual : 2.2e−13 200 content

100

vert. div.

hor. div.

residual

bp

0 −100 −200

1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Southern Mean Mass (only ice); in kg/m2; residual : 2.9e−14 100 content

50

vert. div.

hor. div.

residual

bp

0 −50 −100

1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : 1992-2011 global (upper) north (mid) and south (lower), mass budget (ice only) in kg/m2 .

budgets : volume, heat and salt (top to bottom) 2

Budget Global Mean Mass (only ocean); in kg/m ; residual : 2.1e−12 200 content

100

vert. div.

hor. div.

residual

bp

0 −100 −200

1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Northern Mean Mass (only ocean); in kg/m2; residual : 7.9e−12 400 content

200

vert. div.

hor. div.

residual

bp

0 −200 −400

1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Southern Mean Mass (only ocean); in kg/m2; residual : 4.2e−12 100

content

vert. div.

hor. div.

residual

bp

50 0 −50 −100 1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : 1992-2011 global (upper) north (mid) and south (lower), mass budget (ocean only) in kg/m2 .

budgets : volume, heat and salt (top to bottom) 2

8

4

Budget Global Mean Ocean Heat (incl. ice); in J/m ; residual : 8.0e−04

x 10

content

2

vert. div.

hor. div.

residual

0 −2 −4

1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Northern Mean Ocean Heat (incl. ice); in J/m2; residual : 7.6e−04

9

x 10

content

1

vert. div.

hor. div.

residual

0 −1 1994

1996

1998

2000

2002

2004

2006

2008

2010

2

9

Budget Southern Mean Ocean Heat (incl. ice); in J/m ; residual : 8.4e−04

x 10

content

1

vert. div.

hor. div.

residual

0 −1 1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : 1992-2011 global (upper) north (mid) and south (lower), heat budget (ocean+ice) in J/m2 .

budgets : volume, heat and salt (top to bottom) 2

7

2

Budget Global Mean Ocean Heat (only ice); in J/m ; residual : 6.4e−06

x 10

content

1

vert. div.

hor. div.

residual

0 −1 −2

1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Northern Mean Ocean Heat (only ice); in J/m2; residual : 7.9e−06

7

x 10 5

content

vert. div.

hor. div.

residual

0

−5 1994

4

1996

1998

2000

2002

2004

2006

2008

2010

2

7

Budget Southern Mean Ocean Heat (only ice); in J/m ; residual : 6.4e−06

x 10

content

2

vert. div.

hor. div.

residual

0 −2 −4

1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : 1992-2011 global (upper) north (mid) and south (lower), heat budget (ice only) in J/m2 .

budgets : volume, heat and salt (top to bottom) 2

8

4

Budget Global Mean Ocean Heat (only ocean); in J/m ; residual : 8.1e−04

x 10

content

2

vert. div.

hor. div.

residual

0 −2 −4

1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Northern Mean Ocean Heat (only ocean); in J/m2; residual : 7.7e−04

9

x 10

content

1

vert. div.

hor. div.

residual

0 −1 1994

1996

1998

2000

2002

2004

2006

2008

2010

2

9

Budget Southern Mean Ocean Heat (only ocean); in J/m ; residual : 8.5e−04

x 10

content

1

vert. div.

hor. div.

residual

0 −1 1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : 1992-2011 global (upper) north (mid) and south (lower), heat budget (ocean only) in J/m2 .

budgets : volume, heat and salt (top to bottom) Budget Global Mean Ocean Salt (incl. ice); in g/m2; residual : 5.0e−07

−6

x 10

content

1

vert. div.

hor. div.

residual

0 −1 1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Northern Mean Ocean Salt (incl. ice); in g/m2; residual : 3.6e−07

4

x 10

content

1

vert. div.

hor. div.

residual

0 −1 1994

1996

1998

2000

2002

2004

2006

2008

2010

2

4

Budget Southern Mean Ocean Salt (incl. ice); in g/m ; residual : 6.1e−07

x 10 1

content

vert. div.

hor. div.

residual

0.5 0 −0.5 −1 1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : 1992-2011 global (upper) north (mid) and south (lower), salt budget (ocean+ice) in g/m2 .

budgets : volume, heat and salt (top to bottom) 2

Budget Global Mean Ocean Salt (only ice); in g/m ; residual : 9.1e−13 200 content

100

vert. div.

hor. div.

residual

0 −100 −200

1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Northern Mean Ocean Salt (only ice); in g/m2; residual : 3.4e−12 content

500

vert. div.

hor. div.

residual

0 −500 1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Southern Mean Ocean Salt (only ice); in g/m2; residual : 7.4e−13 400 content

200

vert. div.

hor. div.

residual

0 −200 −400

1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : 1992-2011 global (upper) north (mid) and south (lower), salt budget (ice only) in g/m2 .

budgets : volume, heat and salt (top to bottom) 2

Budget Global Mean Ocean Salt (incl. ice); in g/m ; residual : 5.0e−07 200 content

100

vert. div.

hor. div.

residual

0 −100 −200

1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Northern Mean Ocean Salt (incl. ice); in g/m2; residual : 3.6e−07

4

x 10

content

1

vert. div.

hor. div.

residual

0 −1 1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Southern Mean Ocean Salt (incl. ice); in g/m2; residual : 6.1e−07

4

x 10 1

content

vert. div.

hor. div.

residual

0.5 0 −0.5 −1 1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : 1992-2011 global (upper) north (mid) and south (lower), salt budget (ocean only) in g/m2 .

budgets : volume, heat and salt (100m to bottom) 2

Budget Global Mean Mass (only ocean); in kg/m ; residual : 8.6e−12 200 content

100

vert. div.

hor. div.

residual

bp

0 −100 −200

1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Northern Mean Mass (only ocean); in kg/m2; residual : 2.6e−11 400 content

200

vert. div.

hor. div.

residual

bp

0 −200 −400

1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Southern Mean Mass (only ocean); in kg/m2; residual : 1.6e−11 100

content

vert. div.

hor. div.

residual

bp

50 0 −50 −100 1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : 1992-2011 global (upper) north (mid) and south (lower), mass budget (ocean only) in kg/m2 .

budgets : volume, heat and salt (100m to bottom) 2

8

2

Budget Global Mean Ocean Heat (only ocean); in J/m ; residual : 1.1e−05

x 10

content

1

vert. div.

hor. div.

residual

0 −1 −2

1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Northern Mean Ocean Heat (only ocean); in J/m2; residual : 1.0e−05

8

x 10 5

content

vert. div.

hor. div.

residual

0

−5 1994

1996

1998

2000

2002

2004

2006

2008

2010

2

8

Budget Southern Mean Ocean Heat (only ocean); in J/m ; residual : 1.0e−05

x 10 5

content

vert. div.

hor. div.

residual

0

−5 1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : 1992-2011 global (upper) north (mid) and south (lower), heat budget (ocean only) in J/m2 .

budgets : volume, heat and salt (100m to bottom) Budget Global Mean Ocean Salt (incl. ice); in g/m2; residual : 1.4e−08 5000

content

vert. div.

hor. div.

residual

0

−5000 1994

2

1996

1998

2000

2002

2004

2006

2008

2010

Budget Northern Mean Ocean Salt (incl. ice); in g/m2; residual : 1.3e−08

4

x 10

content

1

vert. div.

hor. div.

residual

0 −1 −2

1994

1996

1998

2000

2002

2004

2006

2008

2010

Budget Southern Mean Ocean Salt (incl. ice); in g/m2; residual : 1.6e−08

4

x 10

content

1

vert. div.

hor. div.

residual

0 −1 1994

1996

1998

2000

2002

2004

2006

2008

2010

Figure : 1992-2011 global (upper) north (mid) and south (lower), salt budget (ocean only) in g/m2 .

mixed layer depth fields

Figure : 1992-2011 March mean – mixed layer depth per Kara formula (m)

mixed layer depth fields

Figure : 1992-2011 March mean – mixed layer depth per Suga formula (m)

mixed layer depth fields

Figure : 1992-2011 March mean – mixed layer depth per Boyer M. formula (m)

mixed layer depth fields

Figure : 1992-2011 September mean – mixed layer depth per Kara formula (m)

mixed layer depth fields

Figure : 1992-2011 September mean – mixed layer depth per Suga formula (m)

mixed layer depth fields

Figure : 1992-2011 September mean – mixed layer depth per Boyer M. formula (m)