1060204 %d0%bb%d0%b8%d1%81%d1%82%d0%be%d0%b2%d0%ba%d0%b0 %d0%bf%d0%be %d1%82%d0%b5%d0%bf%d0%bb%d0%be
Overview of inversion result for mega-dike d0 (September ...
14
X - 62 GRANDIN ET AL.: SEQUENCE OF RIFTING IN AFAR IN 2005–2009 -10 -15 -5 0 -40 -30 -20 -10 0 10 20 30 Depth (km) Distance along dike plane (km) Opening (m) 0.0 2.5 5.0 7.5 10.0 -10 -15 -5 0 -40 -30 -20 -10 0 10 20 30 Depth (km) Distance along dike plane (km) B C -400 -200 0 200 400 Stress change (bar) Data 051026-040728 Model 051026-040728 Residue 051026-040728 Data 051028-050506 Model 051028-050506 Residue 051028-050506 40.5˚ 41˚ 40.5˚ 41˚ 40.5˚ 41˚ 40.5˚ 41˚ 40.5˚ 41˚ 40.5˚ 41˚ 12˚ 12.5˚ 12˚ 12˚ 12˚ 12.5˚ 12˚ 12.5˚ 12.5˚ 12˚ 12.5˚ 12˚ 12.5˚ 40.5˚ 41˚ 40.5˚ 41˚ 40.5˚ 41˚ 40.5˚ 41˚ 40.5˚ 41˚ 40.5˚ 41˚ 12.5˚ 12.5˚ 12˚ 12.5˚ 12.5˚ 12˚ 12.5˚ 12˚ 12.5˚ A 0 50.0 –50.0 LOS (cm) LOS (cm) LOS LOS LOS LOS LOS LOS LOS LOS LOS LOS LOS LOS -40 -30 -20 -10 0 10 20 30 40 -100 -50 0 50 100 150 200 250 300 T28 T49 Distance along profile (km) LOS (cm) D Line of cross-section NNW SSE NNW SSE ENE WSW Figure S-0. Overview of inversion result for mega-dike d0 (September 2005). A: InSAR data, model and residues for ascending (top) and descending tracks (bottom). Line of sight (LOS) is shown by a black arrow. Increasingly negative range-change corresponds to increasing distance between the satellite and the ground. The curved red line represents the projection to the vertical surface of the grid used for elastic modeling of dike intrusions. B: Opening distribution. C: Normal stress change on the dike plane. D: Cross-section through LOS data (circles) and model (continuous line), for a profile perpendicular to the dike, roughly at the latitude of maximum opening (location shown in A). The vertical dashed black lines bound a region where the inversion results are potentially unreliable. DRAFT July 5, 2010, 4:13pm DRAFT
Transcript of Overview of inversion result for mega-dike d0 (September ...
X - 62 GRANDIN ET AL.: SEQUENCE OF RIFTING IN AFAR IN 2005–2009
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
Opening (m)0.0 2.5 5.0 7.5 10.0
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
B
C−400 −200 0 200 400
Stress change (bar)
Data 051026−040728 Model 051026−040728 Residue 051026−040728
Data 051028−050506 Model 051028−050506 Residue 051028−050506
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12˚
12.5˚
12˚
12˚
12˚
12.5˚
12˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12.5˚
12.5˚
12˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
A
0
50.0
–50.0
LOS (cm)LOS (cm)
LOSLOS
LOSLOS
LOSLOS
LOSLOS
LOSLOS
LOSLOS
−40 −30 −20 −10 0 10 20 30 40
−100
−50
0
50
100
150
200
250
300T28
T49
Distance along profile (km)
LO
S (cm
)
D
Line of
cross-section
NNW SSE
NNW SSE
ENEWSW
Figure S-0. Overview of inversion result for mega-dike d0 (September 2005). A: InSAR data,
model and residues for ascending (top) and descending tracks (bottom). Line of sight (LOS) is
shown by a black arrow. Increasingly negative range-change corresponds to increasing distance
between the satellite and the ground. The curved red line represents the projection to the vertical
surface of the grid used for elastic modeling of dike intrusions. B: Opening distribution. C:
Normal stress change on the dike plane. D: Cross-section through LOS data (circles) and model
(continuous line), for a profile perpendicular to the dike, roughly at the latitude of maximum
opening (location shown in A). The vertical dashed black lines bound a region where the inversion
results are potentially unreliable.
D R A F T July 5, 2010, 4:13pm D R A F T
GRANDIN ET AL.: SEQUENCE OF RIFTING IN AFAR IN 2005–2009 X - 63
Data 060628−060419
Data 060624−060415
Model 060628−060419
Model 060624−060415
Residue 060628−060419
Residue 060624−060415
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12˚
12.5˚
12˚
12˚
12˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12.5˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
A
LOSLOS
LOSLOS
Line of
cross-section
LOSLOS LOSLOS
LOSLOS
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
0.0 0.5 1.0 1.5 2.0 2.5 3.0Opening (m)
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
B
C−80 −40 0 40 80
Stress change (bar)30 40
−40
−30
−20
−10
0
10
20
30
40
50
60
70
80
90
100
−40 −30 −20 −10 0 10 20
T28
T464
T49
Distance along profile (km)
LO
S (cm
)
D
NNW SSE
NNW SSE
ENEWSW
12˚12˚0
2.82
–2.82
LOS (cm)LOS (cm)
Figure S-1. Same as Figure S-0 for dike d1 (June 2006). Note that color scaling is different
from that of Figure S-0.
D R A F T July 5, 2010, 4:13pm D R A F T
X - 64 GRANDIN ET AL.: SEQUENCE OF RIFTING IN AFAR IN 2005–2009
LO
S (cm
)
Data 20060628−20060802
Data 20060624−20060729
Model 20060628−20060802
Model 20060624−20060729
Residue 20060628−20060802
Residue 20060624−20060729
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12˚
12.5˚
12˚
12˚
12˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12.5˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
A
LOSLOS
LOSLOS
Line of
cross-section
LOSLOS
LOSLOS
LOSLOS
LOSLOS
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
0.0 0.5 1.0 1.5 2.0 2.5 3.0Opening (m)
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
B
C−80 −40 0 40 80
Stress change (bar)30 40
−40
−30
−20
−10
0
10
20
30
40
50
60
70
80
90
100
−40 −30 −20 −10 0 10 20
T28
T464
Distance along profile (km)
LO
S (cm
)
D
NNW SSE
NNW SSE
ENEWSW
12˚12˚0
2.82
–2.82
LOS (cm)LOS (cm)
Figure S-2. Same as Figure S-0 for dike d2 (July 2006).
D R A F T July 5, 2010, 4:13pm D R A F T
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−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
0.0 0.5 1.0 1.5 2.0 2.5 3.0Opening (m)
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
B
C−80 −40 0 40 80
Stress change (bar)
Data 20060821−20060925
Data 20060902−20061007
Model 20060821−20060925
Model 20060902−20061007
Residue 20060821−20060925
Residue 20060902−20061007
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12˚
12.5˚
12˚
12˚
12˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12.5˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
A
LOSLOS
LOSLOS
LOSLOS
LOSLOS
LOSLOS
LOSLOS
30 40−40
−30
−20
−10
0
10
20
30
40
50
60
70
80
90
100
−40 −30 −20 −10 0 10 20
T28
T300
T464
Distance along profile (km)
LO
S (cm
)
D
Line of
cross-section
NNW SSE
NNW SSE
ENEWSW
12˚12˚0
2.82
–2.82
LOS (cm)LOS (cm)
Figure S-3. Same as Figure S-0 for dike d3 (September 2006).
D R A F T July 5, 2010, 4:13pm D R A F T
X - 66 GRANDIN ET AL.: SEQUENCE OF RIFTING IN AFAR IN 2005–2009
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
0.0 0.5 1.0 1.5 2.0 2.5 3.0Opening (m)
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
B
C−80 −40 0 40 80
Stress change (bar)
Data 20061204−20070108
Data 20061111−20070120
Model 20061204−20070108
Model 20061111−20070120
Residue 20061204−20070108
Residue 20061111−20070120
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12˚
12.5˚
12˚
12˚
12˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12.5˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
A
LOSLOS
LOSLOS
Line of
cross-section
NNW SSE
NNW SSE
ENEWSW
LOSLOS
LOSLOS
LOSLOS
LOSLOS
30 40−40
−30
−20
−10
0
10
20
30
40
50
60
70
80
90
100
−40 −30 −20 −10 0 10 20
T300
T464
Distance along profile (km)
LO
S (cm
)
D
12˚12˚0
2.82
–2.82
LOS (cm)LOS (cm)
Figure S-4. Same as Figure S-0 for dike d4 (December 2006).
D R A F T July 5, 2010, 4:13pm D R A F T
GRANDIN ET AL.: SEQUENCE OF RIFTING IN AFAR IN 2005–2009 X - 67
Data 20061220−20070124
Data 20070108−20070212
Model 20061220−20070124
Model 20070108−20070212
Residue 20061220−20070124
Residue 20070108−20070212
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12˚
12.5˚
12˚
12˚
12˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12.5˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
A
LOSLOS
Line of
cross-section
NNW SSE
NNW SSE
ENEWSW
LOSLOS
LOSLOS
LOSLOS LOSLOS LOSLOS
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
0.0 0.5 1.0 1.5 2.0 2.5 3.0Opening (m)
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
B
C−80 −40 0 40 80
Stress change (bar)30 40
−40
−30
−20
−10
0
10
20
30
40
50
60
70
80
90
100
−40 −30 −20 −10 0 10 20
T28
T300
Distance along profile (km)
LO
S (cm
)
D
NNW SSE
NNW SSE
12˚12˚0
2.82
–2.82
LOS (cm)LOS (cm)
Figure S-5. Same as Figure S-0 for dike d5 (January 2007).
D R A F T July 5, 2010, 4:13pm D R A F T
X - 68 GRANDIN ET AL.: SEQUENCE OF RIFTING IN AFAR IN 2005–2009
Data 070910−070806
Data 070824−070720
Model 070910−070806
Model 070824−070720
Residue 070910−070806
Residue 070824−070720
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12˚
12.5˚
12˚
12˚
12˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12.5˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
A
LOSLOS
LOSLOS
LOSLOS
LOSLOS
LOSLOS
LOSLOS
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
0.0 0.5 1.0 1.5 2.0 2.5 3.0Opening (m)
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
B
C−80 −40 0 40 80
Stress change (bar)30 40
−40
−30
−20
−10
0
10
20
30
40
50
60
70
80
90
100
−40 −30 −20 −10 0 10 20
T28
T300
T464
T49
Distance along profile (km)
LO
S (cm
)
D
Line of
cross-section
NNW SSE
NNW SSE
ENEWSW
12˚12˚0
2.82
–2.82
LOS (cm)LOS (cm)
Figure S-6. Same as Figure S-0 for dike d6 (August 2007).
D R A F T July 5, 2010, 4:13pm D R A F T
GRANDIN ET AL.: SEQUENCE OF RIFTING IN AFAR IN 2005–2009 X - 69
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
0.0 0.5 1.0 1.5 2.0 2.5 3.0Opening (m)
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
B
C−80 −40 0 40 80
Stress change (bar)
Data 071119−071015
Data 071207−071102
Model 071119−071015
Model 071207−071102
Residue 071119−071015
Residue 071207−071102
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12˚
12.5˚
12˚
12˚
12˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12.5˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
A
LOSLOS
LOSLOS
Line of
cross-section
NNW SSE
NNW SSE
ENEWSW
LOSLOS
LOSLOS
LOSLOS
LOSLOS
30 40−40
−30
−20
−10
0
10
20
30
40
50
60
70
80
90
100
−40 −30 −20 −10 0 10 20
T28
T300
T464
T49
Distance along profile (km)
LO
S (cm
)
D
12˚12˚0
2.82
–2.82
LOS (cm)LOS (cm)
Figure S-7. Same as Figure S-0 for dike d7 (November 2007).
D R A F T July 5, 2010, 4:13pm D R A F T
X - 70 GRANDIN ET AL.: SEQUENCE OF RIFTING IN AFAR IN 2005–2009
Data 080407−080128
Data 080425−080215
Model 080407−080128
Model 080425−080215
Residue 080407−080128
Residue 080425−080215
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12˚
12.5˚
12˚
12˚
12˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12.5˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
A
LOSLOS
LOSLOS
LOSLOS
LOSLOS
LOSLOS
LOSLOS
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
0.0 0.5 1.0 1.5 2.0 2.5 3.0Opening (m)
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
B
C−80 −40 0 40 80
Stress change (bar)30 40
−40
−30
−20
−10
0
10
20
30
40
50
60
70
80
90
100
−40 −30 −20 −10 0 10 20
T28
T300
T464
T49
Distance along profile (km)
LO
S (cm
)
D
Line of
cross-section
NNW SSE
NNW SSE
ENEWSW
12˚12˚0
2.82
–2.82
LOS (cm)LOS (cm)
Figure S-8. Same as Figure S-0 for dike d8 (March 2008).
D R A F T July 5, 2010, 4:13pm D R A F T
GRANDIN ET AL.: SEQUENCE OF RIFTING IN AFAR IN 2005–2009 X - 71
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
0.0 0.5 1.0 1.5 2.0 2.5 3.0Opening (m)
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
B
C−80 −40 0 40 80
Stress change (bar)
Data 080806−080702
Data 080808−080704
Model 080806−080702
Model 080808−080704
Residue 080806−080702
Residue 080808−080704
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12˚
12.5˚
12˚
12˚
12˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12.5˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
A
LOSLOS
LOSLOS
LOSLOS
LOSLOS
LOSLOS
LOSLOS
30 40−40
−30
−20
−10
0
10
20
30
40
50
60
70
80
90
100
−40 −30 −20 −10 0 10 20
T28
T300
T464
T49
Distance along profile (km)
LO
S (cm
)
D
Line of
cross-section
NNW SSE
NNW SSE
ENEWSW
12˚12˚0
2.82
–2.82
LOS (cm)LOS (cm)
Figure S-9. Same as Figure S-0 for dike d9 (July 2008).
D R A F T July 5, 2010, 4:13pm D R A F T
X - 72 GRANDIN ET AL.: SEQUENCE OF RIFTING IN AFAR IN 2005–2009
Data 081103−080929
Data 081121−081017
Model 081103−080929
Model 081121−081017
Residue 081103−080929
Residue 081121−081017
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12˚
12.5˚
12˚
12˚
12˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12.5˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
A
LOSLOS
LOSLOS
LOSLOS
LOSLOS
LOSLOS
LOSLOS
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
0.0 0.5 1.0 1.5 2.0 2.5 3.0Opening (m)
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
B
C−80 −40 0 40 80
Stress change (bar)30 40
−40
−30
−20
−10
0
10
20
30
40
50
60
70
80
90
100
−40 −30 −20 −10 0 10 20
T28
T300
T464
T49
Distance along profile (km)
LO
S (cm
)
D
Line of
cross-section
NNW SSE
NNW SSE
ENEWSW
12˚12˚0
2.82
–2.82
LOS (cm)LOS (cm)
Figure S-10. Same as Figure S-0 for dike d10 (October 2008).
D R A F T July 5, 2010, 4:13pm D R A F T
GRANDIN ET AL.: SEQUENCE OF RIFTING IN AFAR IN 2005–2009 X - 73
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
0.0 0.5 1.0 1.5 2.0 2.5 3.0Opening (m)
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
B
C−80 −40 0 40 80
Stress change (bar)
Data 090304−090128
Data 090306−081226
Model 090304−090128
Model 090306−081226
Residue 090304−090128
Residue 090306−081226
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12˚
12.5˚
12˚
12˚
12˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12.5˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
A
LOSLOS
LOSLOS
LOSLOS
LOSLOS
LOSLOS
LOSLOS
30 40−40
−30
−20
−10
0
10
20
30
40
50
60
70
80
90
100
−40 −30 −20 −10 0 10 20
T28
T300
T464
T49
Distance along profile (km)
LO
S (cm
)
D
Line of
cross-section
NNW SSE
NNW SSE
ENEWSW
12˚12˚0
2.82
–2.82
LOS (cm)LOS (cm)
Figure S-11. Same as Figure S-0 for dike d11 (February 2009).
D R A F T July 5, 2010, 4:13pm D R A F T
X - 74 GRANDIN ET AL.: SEQUENCE OF RIFTING IN AFAR IN 2005–2009
Data 090722−090513
Data 090724−090515
Model 090722−090513
Model 090724−090515
Residue 090722−090513
Residue 090724−090515
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12˚
12.5˚
12˚
12˚
12˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
40.5˚ 41˚ 40.5˚ 41˚40.5˚ 41˚
12.5˚
12.5˚
12.5˚
12.5˚
12˚
12.5˚
12˚
12.5˚
A
LOSLOS
LOSLOS
LOSLOS
LOSLOS
LOSLOS
LOSLOS
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
0.0 0.5 1.0 1.5 2.0 2.5 3.0Opening (m)
−10
−15
−5
0
-40 -30 -20 -10 0 10 20 30
Depth(km)
Distance along dike plane (km)
B
C−80 −40 0 40 80
Stress change (bar)30 40
−40
−30
−20
−10
0
10
20
30
40
50
60
70
80
90
100
−40 −30 −20 −10 0 10 20
T28
T300
T464
T49
Distance along profile (km)
LO
S (cm
)
D
Line of
cross-section
NNW SSE
NNW SSE
ENEWSW
12˚12˚0
2.82
–2.82
LOS (cm)LOS (cm)
Figure S-12. Same as Figure S-0 for dike d12 (June 2009).
D R A F T July 5, 2010, 4:13pm D R A F T
GR
AN
DIN
ET
AL.:
SE
QU
EN
CE
OF
RIF
TIN
GIN
AFA
RIN
2005–2009X
-75
Table S-1. Dates of InSAR master (T*A) and slave (T*B) scenes used for inversion, for the four tracks used in this
study (tracks 28, 300, 464 and 49), and standard deviation of LOS displacement contained in data vector (downsampled
interferogram) and residue vector.
Event T28A T28B T300A T300B T464A T464B T49A T49B
Std dev. of
data vector
(cm)
Std dev. of
residue vector
(cm)
d0 2004-07-28 2005-10-26 2005-05-06 2005-10-28 28.48 7.65
d1 2006-05-24 2006-06-28 2006-05-20 2006-06-24 2006-05-26 2006-06-30 9.24 1.79
d2 2006-06-28 2006-08-02 2006-06-24 2006-07-29 6.30 1.24
d3 2006-09-06 2006-10-11 2006-08-21 2006-09-25 2006-09-02 2006-10-07 6.26 1.34
d4a 2006-12-04 2007-01-08 2006-11-11 2007-01-20 8.47 1.24
d5 2006-12-20 2007-01-24 2007-01-08 2007-02-12 4.42 0.57
d6 2007-07-18 2007-08-22 2007-08-06 2007-09-10 2007-07-14 2007-08-18 2007-07-20 2007-08-24 8.66 1.68
d7 2007-10-31 2008-01-09 2007-10-15 2007-11-19 2007-10-27 2007-12-01 2007-11-02 2007-12-07 8.93 2.11
d8 2008-02-13 2008-04-07 2008-01-28 2008-04-07 2007-12-01 2008-05-24 2008-02-15 2008-04-25 4.89 1.30
d9 2008-07-02 2008-08-06 2008-06-16 2008-07-21 2008-06-28 2008-08-02 2008-07-04 2008-08-08 6.00 1.08
d10 2008-10-15 2008-11-19 2008-09-29 2008-11-03 2008-10-11 2009-01-24 2008-10-17 2008-11-21 13.77 2.16
d11 2009-01-28 2009-03-04 2009-01-12 2009-02-16 2009-01-24 2009-02-28 2009-01-30 2009-03-06 7.19 0.89
d12 2009-06-17 2009-07-22 2009-06-01 2009-07-06 2009-06-13 2009-07-18 2009-06-19 2009-07-24 6.74 1.36
a: because dikes d4 and d5 are mixed in these InSAR images, LOS deformation for dike d4 was recovered after subtraction of synthetic LOS deformationusing inversion results of dike d5.
DR
AF
TJuly
5,
2010,
4:13pm
DRA
FT
