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    By:y:Moh.FifikSyafiudinMoh.FifikSyafiudin Supervisor:upervisor:Dr.RSChatterjeeDr.RSChatterjeeNational Coordinating Agency for Surveys and Mappingational Coordinating Agency for Surveys and Mapping(BAKOSURTANAL), IndonesiaBAKOSURTANAL), Indonesia Geosciences Divisioneosciences DivisionIIRS, Dehradun, IndiaIRS, Dehradun, IndiaMMAPPINGAPPING LLANDAND SSUBSIDENCEUBSIDENCE PPHENOMENONHENOMENON

    ,,DDIFFERENTIALIFFERENTIAL IINTERFEROMETRICNTERFEROMETRIC SSYNTHETICYNTHETIC AAPERTUREPERTURE RRADARADAR--

    M.Tech Research Pro ect

    Centre for Space Science and Technology Education in Asia and the Pacific (CSSTEAP)(Affiliated to the United Nations)

    Indian Institute of Remote Sensing (IIRS), National Remote Sensing Centre (NRSC)Department of Space, Government of India

    Dehra Dun, INDIA2 0 0 9

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    It is cost-effective tool for land subsidence monitorin e. . due to

    groundwater over-extraction, over a large area (e.g., 100 km x 100 km)

    Among various aeria - an space tec niques avai a e to ate, D-InSAR

    appears to be an efficient technique for measuring spatially continuousland subsidence

    surveying techniques

    --V2KV2K--M.TechM.Tech20092009

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    Groundwater extractionGroundwater extraction

    in Bandung Basin during 1900in Bandung Basin during 1900 -- 20062006

    --V2KV2K--M.TechM.Tech20092009

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    ,,

    --V2KV2K--M.TechM.Tech20092009

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    ,,

    --V2KV2K--M.TechM.Tech20092009

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    It is defined as the vertical surface movement due to the removal of

    subsurface support

    It is due to man-made activities such as extraction of groundwater, oil,

    gas or y un ergroun mining as we as natura azar s suc as

    compaction of sediments or earthquake

    Sinking or settlement of the land surface, due to any of several

    downward movement of natural surfaces although small-scale

    , .,

    --V2KV2K--M.TechM.Tech20092009

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    subsiding areas.

    Measuring the rate of land subsidence at cm to sub-centimeter

    level.Assessment and estimation of potential land subsidence due to

    the decline in piezometric level.

    Validation of D-InSAR based land subsidence results with high

    .

    --V2KV2K--M.TechM.Tech20092009

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    StudyStudy AreaArea :: BandungBandung BasinBasin (West(West JavaJava Province)Province)INDONESIAINDONESIA

    JakartaSemarang

    Surabaya

    JakartaLeveling: 6-10 cm (1991-1997)

    InSAR: 10 cm (1993-1995)

    GPS: 4-6 cm (1997-1999)SemarangLeveling: 17 cm/year (1996-2001)

    Surabaya / Porong (Sidoarjo)GPS: 1.053 m (1 bulan)

    InSAR: 1.58 m (1.5 bulan)

    --V2KV2K--M.TechM.Tech20092009--V2KV2K--M.TechM.Tech20092009

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    3D Perspective view of Bandung Basin3D Perspective view of Bandung Basin

    and its surrounding areaand its surrounding area

    Mt. Gede, 2958 mMt. Gede, 2958 m Tangkuban Perahu VolcanoTangkuban Perahu Volcanomm

    Mt. Pangrango, 3019 mMt. Pangrango, 3019 m Tampomas VolcanoTampomas Volcano1684 m1684 m

    Bandung CityBandung City

    Malabar VolcanoMalabar Volcano

    Galunggung VolcanoGalunggung Volcano2168 m2168 m

    2665 m2665 m

    --V2KV2K--M.TechM.Tech20092009

    (Source: SRTM 30mx30m DEM)

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    Satellite Data (Optical and SAR)

    SPOT-5 July, 2004 1Precise localisation of the subsiding

    areas

    JERS-1 1994, 1995, & 19983 pairs with 1 pair having fairly goodcoherence

    Differential interferogram generationand subsidence measurement

    3 pairs with 2 pair having fairly good Differential interferogram generation,

    coherence and subsidence measurement

    ALOS PALSAR 2007 & 20086 pairs with 2 pair having fairly good

    coherence

    Differential interferogram generation

    and subsidence measurement

    Topographic Data

    SRTM DEM

    (30m res)February, 2000 1

    Topographic phase removal in D-InSAR

    processing

    To o ra hic Ma

    1:25.000mage-geore erenc ng

    Ancillary Data

    2000, 2001, 2002, 2003 & 20 points, distributed over the entire Validation of D-InSAR based land

    2005 area subsidence

    Piezometric level2000, 2001, 2002, 2003, 2004

    & 2005

    40-60 points, distributed over the

    entire area

    Potential land subsidence measurement

    due to aquifer compression

    --V2KV2K--M.TechM.Tech20092009

    Sub-surface geology 1989 14 po nts, str ute over t e ent re

    area

    Potent a an su s ence measurement

    due to aquifer compression

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    ----

    No Master Slave Bn(m) T (days)

    1 18/09/1994 28/01/1995 1144.60 132

    218/09/1994 09/09/1998

    -542.51 14523 28/01/1995 09/09/1998 -1686.40 1320

    ALOS PALSARALOS PALSAR

    No Master Slave Bn(m)T (days)

    1 02/12/2007 17/01/2008 102.480 472 02 12 2007 03 03 2008 11588.499 933 02/12/2007 18/04/2008 172.312 1394 17/01/2008 03/03/2008 11656.958 47

    . 6 03/03/2008 18/04/2008 76894.521 47

    ENVISAT ASARENVISAT ASAR

    No Master Slave Bn(m) T (days)

    1 15/06/2004 13/09/2005 377.436 4562 15/06/2004 20/06/2006 109.598 736

    --V2KV2K--M.TechM.Tech20092009

    3 13/09/2005 20/06/2006 268.392 281

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    EVInSAR and SARscape InSAR software tool

    ERDAS IMAGINE and ENVI for standard image

    processing

    -

    --V2KV2K--M.TechM.Tech20092009

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    InSAR

    data pairsPiezometry-based

    sediment compression

    measurement

    GPS Survey

    Dual-frequency

    Geodetic GPS

    Optical

    multispectral

    datareceivers

    DInSAR

    processing

    Preparation of layers

    Subsurface lithotypes

    Lithotype thickness

    Pre-processing

    Visual image analysis

    Multispectral image

    Point measurement

    and computation

    (X,Y,h) & hPiezometric changeclassification (standard deviation)

    Point-basedsubsidence rate

    Potentialsubsidence

    Subsidenceareas & rate

    Thematicmaps

    correlationvalidation

    --V2KV2K--M.TechM.Tech20092009

    Land Subsidence

    Map

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    --

    SARdata1 SARdata2 DEM

    Synthetic

    InterferogramReal

    InterferogramB

    A2

    A

    1

    eren aInterferogram

    h

    IdentificationandMeasurementofH(x,y)

    --V2KV2K--M.TechM.Tech20092009

    y

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    -- --

    Frin es centre location of differential interfero ram

    --V2KV2K--M.TechM.Tech20092009

    of JERS-1 data pair (18/09/1994 and 28/01/1995)of Bandung Basin

    E t d d i f th d f ti f i ith f iE t d d i f th d f ti f i ith f i

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    Extended view of the deformation fringes with fringeExtended view of the deformation fringes with fringe

    --

    data pair (18/09/1994 and 28/01/1995) of Bandung Basindata pair (18/09/1994 and 28/01/1995) of Bandung Basin

    F1: = 11/7(2) ; h = -18.46 cm

    = = - .F1: = 7/7(2) ; h = -11.75 cmF2: = 7/7(2) ; h = -11.75 cm

    --V2KV2K--M.TechM.Tech20092009

    : = ; = - . cm

    OO

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    ALOS PALSAR (LALOS PALSAR (L--band)band)a a process nga a process ng

    --V2KV2K--M.TechM.Tech20092009

    Differential interferogram of ALOS PALSAR data pair

    (02/12/2007 and 03/03/2008) of Bandung Basin

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    --

    Fringes centre location of differential interferogram

    --V2KV2K--M.TechM.Tech20092009

    of ENVISAT ASAR data pair (13 September 2005 and 20 June 2006)

    of Bandung Basin

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    --

    E1: = 31/7(2) ; h = -12.40 cm

    o our sc eme:

    : = 7(2) ; = - .40 cmE3: = 15/7(2) ; h = - 6.00 cmE4: = 11/7(2) ; h = + 4.40 cm

    Extended view of the deformation fringes with fringe centre locations in differential

    interferogram of ENVISAT ASAR data pair (13/09/2005 and 20/06/2006) of Bandung Basin

    --V2KV2K--M.TechM.Tech20092009

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    --

    Fringes centre location of differential interferogram

    --V2KV2K--M.TechM.Tech20092009

    of ENVISAT ASAR data pair (15 June 2004 and 20 June 2006)

    of Bandung Basin

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    --

    G1: = 51/7(2) ; h = -20.40 cm

    Colour scheme: I/B/C/G/Y/O/R

    G2: = 53/7(2) ; h = -21.20 cmG3: = 35/7(2) ; h = -14.00 cm

    Extended view of the deformation fringes with fringe centre locations in differential

    --V2KV2K--M.TechM.Tech20092009

    interferogram of ENVISAT ASAR data pair (15/06/2004 and 20/06/2006) of Bandung Basin

    Fl di f i t iFl di f i t i b db d

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    Flow diagram of piezometricFlow diagram of piezometric--basedbased

    land subsidence measurementland subsidence measurement

    DATA SOURCE

    Compressibility

    Coefficient (w/Ec)

    Subsurface Geology

    (Drilling Points)

    Piezometric Data

    (Boreholes)

    Decline in

    Piezometric Level

    Thickness of

    Confining Layers

    LAND SUBSIDENCE

    m = (w/Ec) m h

    --V2KV2K--M.TechM.Tech20092009

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    PiezometricPiezometric fluctuation during 2000fluctuation during 2000--2005 close to2005 close to

    Piezometric Drillin Point Decline in piezometric level (m)

    DD--InSARInSAR fringefringe centrescentres and nearbyand nearby drilling pointdrilling point locationslocations

    oPoint ID

    ID 2000-2001 2001-2002 2002-2003 2003-2004 2004-2005

    1 BR04 DDBP4 -0.75 -0.01 - - -

    - - - - -. . .

    3 BR16 DD45 - -1.22 -2.44 - -

    4 SR06 DD15 -4.24 -0.85 -2.47 -15.14 -21.66

    Piezometric points

    + Drilling points

    --V2KV2K--M.TechM.Tech20092009

    S b f l i l fil bS b f l i l fil b

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    Subsurface geological profile aboveSubsurface geological profile above

    Piezometric Drilling Thickness w/Ec

    the marker aquifer layerthe marker aquifer layer

    Point ID Point ID

    (m) (1/m)

    1 BR04 DDBP4

    Stiff to hard sandy clay and silt with sandy

    intercalations5.000 10.99 x 10-4

    very little fine28.090 7.54 x 10-5

    2 BR14 BT 26/690 Clay and organic lacustrine deposits 7.450 11.45 x 10-3

    Stiff to hard sandy clay and silt with sandy -4intercalations

    . .

    Gravelly sand to sandy gravel with scoria and

    very little fine5.000 19.19 x 10-4

    3 BR16 DD45

    very little fine21.250 7.54 x 10-5

    Sand, fine silty to coarse gravelly, poorly sorted

    with silt and clay intercalations, loose to dense9.375 1.66 x 10-4

    Conglomerates and breccias in a clayey/sandy

    matrix, dense to consolidated6.250 7.54 x 10-5

    Stiff to hard sandy clay and silt with sandy11.305 10.99 x 10-4

    4 SR06 DD15

    Soft organic silty clay and clayey silts 23.479 19.19 x 10-4

    Peat and peaty clay 1.304 11.45 x 10-3

    Gravell sand to sand ravel with scoria and -

    --V2KV2K--M.TechM.Tech20092009

    very little fine . . x-

    Sand, fine silty to coarse gravelly, poorly sorted

    with silt and clay intercalations, loose to dense4.348 1.66 x 10-4

    Pi tPi t b d l d b id fb d l d b id f

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    PiezometryPiezometry--based land subsidence ofbased land subsidence ofan ung as n ur ng oan ung as n ur ng o

    NoPiezometric Drilling Point Land subsidence rate (cm)

    - - - - - verage

    1 BC06 DD10 -0.35 -2.41 -0.96 - - -1.24

    2 BR03 VRS42 - -1.83 -1.39 - - -1.62

    3 BR04 DDBP4 -0.57 -7.51 - - - -4.04

    4 BR14 BT 26/690 -1.96 -6.48 -4.86 - - -4.44

    - - . - . - - - .

    6 BR17 DD56 - -2.28 -2.61 - - -2.44

    7 BR25 DD58 - - - - -6.61 -6.61

    8 BR27 GTL 5/667 - - - - -2.68 -2.68

    9 SR06 DD15 - -31.83 -19.67 - - -25.75

    n - - . - . - . - . - .

    --V2KV2K--M.TechM.Tech20092009

    Pi tPi t b d l d b id fb d l d b id f

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    PiezometryPiezometry--based land subsidence ofbased land subsidence ofan ung as n ur ng toan ung as n ur ng to

    --V2KV2K--M.TechM.Tech20092009

    Principle of land subsidence measurementPrinciple of land subsidence measurement

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    Principle of land subsidence measurementPrinciple of land subsidence measurement

    using repeated GPS surveysusing repeated GPS surveysHEIGHT

    L

    CHARACTERIZATION

    GPS NetworkGPS Networkcovering study areacovering study area

    --V2KV2K--M.TechM.Tech20092009Coordinate from survey#1 Coordinate from survey#2

    P i tP i t b d L d S b id M tb d L d S b id M t

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    PointPoint--based Land Subsidence Measurementsbased Land Subsidence Measurements

    during 2000during 2000--2005 from GPS survey in Bandung Basin2005 from GPS survey in Bandung Basin

    --V2KV2K--M.TechM.Tech20092009

    Potential and actual land subsidence measurements as obtainedPotential and actual land subsidence measurements as obtained

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    from differentfrom different s acebornes aceborne and roundand round--based techni uesbased techni ues

    at or near the corresponding pointsat or near the corresponding points in Bandung Basinin Bandung Basin

    --V2KV2K--M.TechM.Tech20092009

    IntegratedIntegrated land subsidence measurements as obtained fromland subsidence measurements as obtained from

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    gg

    three different techni ues at/near the corres ondin ointsthree different techni ues at/near the corres ondin oints

    in Bandung Basinin Bandung Basin

    Land Subsidence Rate cm

    D-InSAR (ENVISAT ASAR) GPS PIEZOMETRIC

    15/06/2004-

    20/06/2006

    13/09/2005-

    20/06/2006

    Average(per-year)

    Point IDTotal

    (2000-2005)

    Average(per-year)

    Point ID TotalAverage(per-year)

    -20.4 -12.4 -11.3 CMHI -75.1 -18.77 DDBP4-8.08

    (2000-2002)-4.04

    --21.2 -8.4 -9.5 KPO1 -8.8 -4.4 DD45

    .

    (2001-2003)

    -6.12

    -14 -6 -6.2 BM13L -26.2 -13.1 DD15-51.5

    -25.75(2001-2003)

    RCK2 -57.0 -14.25 BT26/690-13.3

    (2000-2003)-4.44

    --V2KV2K--M.TechM.Tech20092009

    PPotentialotential and actual land subsidence areas obtainedand actual land subsidence areas obtained

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    fromfrom s acebornes aceborne and round based techni uesand round based techni ues

    (overlain on LU/LC map, derived from SPOT(overlain on LU/LC map, derived from SPOT--5 data)5 data)

    --V2KV2K--M.TechM.Tech20092009

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    In Bandung Basin, land subsidence has been occurring primarily due to

    round water over extraction to meet the water demand of ra idl rowin

    urban population in general and fast-growing industrilization in particular

    In the resent work an inte rated a roach usin three different techni ues

    namely, piezometry-based layer compression estimation, space-borne D-

    InSAR, and multi-epoch GPS survey, was attempted to address land

    su s ence measuremen an mon or ng n an aroun an ung c y an

    industrial hubs in Bandung Basin

    pace- orne - n ec n que prov es spa a y con nuous ac ua

    deformation measurement of the study area whereas Piezometry-basedtechni ue ives an estimate of otential land subsidence due to

    compression of the layers as a result of Piezometric decline of the aquifers,

    and multi-epoch high precision GPS survey gives point-based actual

    --V2KV2K--M.TechM.Tech20092009

    su s ence measuremen s a e o serva on po n s

    Moh. Fifik SyafiudinMoh. Fifik Syafiudin

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    Moh.FifikSyafiudinMoh.FifikSyafiudin. .

    [email protected]

    --V2KV2K--M.TechM.Tech20092009