Water resource management plan
AE-E
U-2
Ground deformation monitoring
Ecology
and management program
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CSG Fields Ground Deformation
Monitoring and Management Plan
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Table of Contents
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1.
Context of this Subsidence Management Plan
1.1.
Regulatory Context
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1.2.
Definition of Subsidence, Process of Subsidence in the Context of
CSG Production
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2.
2.1.
Predicted Subsidence Levels & Subsidence Risk Levels
Predicted Settlement
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2.2.
Hydrological implication for the predicted settlement
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Hydrogeological implications
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3.
3.1.
Subsidence Monitoring
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Baseline Results
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APPENDIX A: SUBSIDENCE BASELINE ASSESSMENT REPORT
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BASELINE REPORT ONInSAR
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INDEX
1.
EXECUTIVE SUMMARY ................................................................................................. 2
2.
INTRODUCTION.............................................................................................................5
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AREA OF STUDY ...........................................................................................................6
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RESULTS OF THE BASELINE STUDY ........................................................................23
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CONCLUSIONS............................................................................................................27
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MOVING FORWARD ....................................................................................................28
APPENDIX A: EXAMPLES OF AREAS WITH MOTION ..............................................................30
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3. AREA OF STUDY
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Figure 1: Location and Extent of the Study Area.
(© Bing Maps 2010 Microsoft Corporation orthoimage)
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Figure 2 : Orthophoto and landcover indicative of landuse across the study area
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4. SAR DATA USED
4.1. JUSTIFICATION OF THE SATELLITE SELECTION
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total of 698 SAR images used.
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Table 2: ALOS track 364 data archive constitution.
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Table 3: ALOS track 365 data archive constitution.
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Table 4: ALOS track 366 data archive constitution.
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Table 5: ALOS track 367 data archive constitution.
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Table 6: ALOS track 368 data archive constitution.
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Acquisition date
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Table 7: ALOS track 369 data archive constitution.
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Table 8: ALOS track 370 data archive constitution.
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Figure 5:Time distribution of the images. Each acquisition date will represent a
measurement.
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5.
TERRAIN MOTION DETECTION METHODOLOGY
5.1. SPN INTERFEROMETRIC PROCESS
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6.2. DATA STRUCTURE
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149.723892
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772298.4
7105078.0
1708
4093
1.62
1.59
0.84
T367_F664_F667
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149.723846
-26.147745
772293.0
7105103.5
1708
4094
1.02
1.29
0.88
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MEAN_COH
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PROJCODE
24/06/2007
09/08/2007
0.84
3.98
0.42
0.58
0.70
28355
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0.00
0.86
3.81
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0.49
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motion for this point.
16/07/
2009
28/07/
2009
14/08/
2009
31/08/
2009
12/09/
2009
29/09/
2009
16/10/
2009
28/10/
2009
14/11/
2009
01/12/
2009
13/12/
2009
30/12/
2009
T366
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-6.86
-9999
-9999
-6.81
-9999
-9999
-8.01
-9999
-9999
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T367
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-9999
-3.67
-9999
-9999
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-9999
-9999
-2.44
-9999
-9999
-2.29
T368
1.37
-9999
-9999
0.73
-9999
-9999
0.89
-9999
-9999
1.29
-9999
-9999
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T366
04/09/2009
13/12/2009
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Figure 9: Time series of Table 2 data. Different tracks have different dates of acquisition.
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6.4. MAP FILES
Figure 12: Example of a mean velocity map.
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APPENDIX A: EXAMPLES OF AREAS WITH MOTION
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Figure 15: Identification of the example areas with motion based on the analysis of the mean
annual displacement rate maps for the areas of interest.
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A.1 AREA A
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Figure 16 : Location and spatial extent of motion area A affected by ground motion
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Figure 17 : Detailed time series of area A.1
Figure 18 : Detailed time series of area A.2
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A.2 AREA B
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Figure 20 : Detailed time series of area B
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A.3 AREA C
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Figure 21: Location and spatial extent of motion area C affected by ground motion
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Figure 22 : Detailed time series of area C
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A.4 AREA D
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Figure 23 : Location and spatial extent of motion area D affected by ground motion
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Figure 24 : Detailed time series of area D
movement vector
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Figure 25 : Top image illustrates the topography of the area of interest and the movement
vector of the detected subsidence. Bottom image shows the projected measurement points
of area D.
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A.5 AREA E
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Figure 26 : Location and spatial extent of motion area E affected by ground motion
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Figure 27 : Detailed time series of area E.1
Figure 28 : Detailed time series of area E.2
Figure 29 : Detailed time series of area E.3
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A.6 AREA F
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Figure 30 : Location and spatial extent of motion area F affected by ground motion
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Figure 31 : Detailed time series of area F.1
Figure 32 : Detailed time series of area F.2
Figure 33 : Detailed time series of area F.3
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APPENDIX B: RAINFALL CASE STUDY
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Figure 34 : 2009 annual rainfall compared against historical rainfall records. Australian
Bureau of Meteorology ©
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Figure 35 : 2010 annual rainfall compared against historical rainfall records. Australian
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Figure 36 : Floodplain map of Taroom and surroundings (2010/2011)
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Figure 37 : Obtained InSAR results and time series over Taroom for the period between
January 2008 and February 2010, period that corresponds to the circled area of the time
series
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Figure 38 : Obtained InSAR results and time series over Taroom for the period between
February 2010 and January 2011, period that corresponds to the circled area of the time
series
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APPENDIX C: MEASUREMENTS DENSITY AND DISTRIBUTION
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Figure 39: Orthophoto showing the land cover over a sector of the area of interest (left
image) and measurement points distribution (right image). Black lines mark the limits of the
delivered data
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Figure 40 : Land use map from the National Dynamic Land Cover Dataset of Australia over a
sector of the area of interest (top left image), measurement points distribution (top right
image) and the land use map legend (lower image). Australian Bureau of Agricultural and
Resource Economics and Sciences ©.
C.1 ANALYSIS OF WAVE REFLECTIVITY CHANGES OVER FIELDS
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of the Surat and Bowen Basins
Figure 41 : Time evolution of the SAR image amplitude over a field
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InSAR Baseline Ground Motion Study
of the Surat and Bowen Basins
Figure 42 : Mean annual displacement map over a field presenting constant changes in the
wave reflectance
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