Introduction of PALSAR and PALSAR Data Application Plan

Transcription

1 Introduction of PALSAR and PALSAR Data Application Plan September 19 th, 2006 Tomonori Deguchi Earth Remote Sensing Data Analysis Center (ERSDAC)

2 Contents 1. ERSDAC 2. PALSAR project 3. PALSAR data product 4. PALSAR GDS 5. Topics during calibration and validation period 6. PALSAR data application plan 7. Joint research with Zonguldak Karaelmas University

3 1. ERSDAC

4 What is ERSDAC? ERSDAC (Earth Remote Sensing Data Analysis Center) was founded on September 30, Non-profit foundation as an enterprise of METI (Ministry of Economy, Trade and Industry). Researched and development of the application technology of OPS and SAR. ERSDAC has operated Terra/ASTER, which is the succeeding sensor of JERS-1/OPS, and distributed its data. ERSDAC will distribute ALOS/PALSAR data, which is the succeeding sensor of JERS-1/SAR and was launched on January 24 th, R&D to use ASTER and PALSAR data for natural resource exploration, environmental assessment, disaster monitoring and others.

5 ERSDAC s Duties (1) Data application technology development for ; Oil and gas exploration Metal mining exploration Earth observation/monitoring (ex. Forest, Desertification, Coastal change, Red tide/blue tide, Forest fire, etc.) Disaster observation (ex. Earthquake, Landslides, Flood, Volcanic eruption, etc.) (2) Remote sensing data center Data archive center (JERS-1/OPS & SAR, ASTER, PALSAR) Data distribution (JERS-1/OPS & SAR, ASTER, PALSAR) Promotion for industrialization of satellite data utilization (3) Data processing ASTER/PALSAR Ground Data System (GDS) operation Calibration and Validation of ASTER/PALSAR Data

6 2. PALSAR project

7 ALOS (Advanced Land Observing Satellite) ALOS 6.2m x 3.6m x 4.0m 4.0 tons Photos : Courtesy of JAXA 8.9m x 3.1m Court 22.2 m x 3.1m esy PRISM AVNIR-II PALSAR of (by JAXA) ( Panchromatic Remote Sensing Instrument for Stereo Mapping ) (by JAXA) JAXA ( Advanced Visible and Near Infrared Radiometer - Type II ) (by METI & JAXA) ( Phased Array Type L-Band Synthetic Aperture Radar ) JAXA : Japan Aerospace Exploration Agency Land use map Ground surface Disaster observation Exploration of natural resource

8 PALSAR project The development of PALSAR is a joint project between METI and JAXA: JAXA/EOC receive all PALSAR data from satellite operate the mission schedule of PALSAR ERSDAC, on behalf of METI, has right to receive all PALSAR Level-0 (L0) data acquired by JAXA to issue observation request to JAXA Users: Priority users: METI and its affiliates in regard to the objective General users: worldwide, product request only, registration through web site will be open

9 3. PALSAR data product

10 PALSAR data product Product level Observation mode Polarization Format Data type Data size of one pixel (sample) Fine resolution CEOS 8 bits unsigned 8 bits unsigned integer for each I and Q Level 1.0 integer channels, (FBS) 1 polarization (HH or VV) 2 bytes in total for 1 polarization, Level polarizations 4 bytes in total for 2 polarizations, (HH+HV or VV+VH) (FBD) Polarimetry 4 polarizations 8 bytes in total for 4 polarizations (PLR) (HH+HV+VH+VV) ScanSAR 1 polarization 2 bytes in total for 1 polarization, (HH or VV) Fine resolution (FBS) 1 polarization (HH or VV) Vexcel Standard IEEE 32 bits SLC floating point (Single Look Complex) Real and imaginary parts of complex number, 8 bytes in total for 1 polarization, 2 polarizations 16 bytes in total for 2 polarizations, (FBD) (HH+HV or VV+VH) Polarimetry 4 polarizations 32 bytes in total for 4 polarizations (PLR) (HH+HV+VH+VV) Level 1.5 CEOS 2 bytes Level 4.1 Fine resolution 1 polarization 16 bits unsigned (FBS) (HH or VV) integer Fine resolution 2 polarizations CEOS 16 bits integer HH*HH*, HV*HV*, VV*VV* ; Real (FBD) (HH+HV or VV+VH) (Cross product) (signed and unsigned) number unsigned integer (2 bytes) HH*HV*, HH*VV*, VV*HV* ; Complex signed integer (2 bytes) for each real and imaginary parts, 8 bytes in total for 2 polarizations, Polarimetry 4 polarizations 18 bytes in total for 4 polarizations (PLR) (HH+HV+VH+VV) ScanSAR 1 polarization 16bits unsigned (HH or VV) integer Level 4.2 CEOS 2 bytes Raw data Interferometry Geocoded

11 4. PALSAR GDS

12 PALSAR GDS Other ERSDAC facilities CMS ERSDAC (Head office, Tokyo) CSMS Internet IMS PGS 500 scenes Product Distribution (online, CD-R, DVD) EDB (ERSDAC Data Buffer) JAXA/EOC (Hatoyama) High speed line (30Mbps) for L0 Low speed line LAN On / Off - line Product Request Product Search (Observation Request) Users IMS : Information Management Subsystem CSMS : Communication and System Management Subsystem PGS : Product Generation Subsystem CMS : Customer Management subsystem EDB : ERSDAC Data Buffer ERSDAC

13 Performance check of GDS Time needed for daily production Data to be Processed per day Target time per day (hour) Measured time (hour) L1.0 x 500 scenes < L1.5 x 100 scenes < L1.1 x 10 scenes L4.1 x 10 scenes N/A < OK! L4.2 x 10 scenes < Total < Measured transmission line speed Mbps L0 data transmission from EDB to PGS EDB : ERSDAC Data Buffer PGS : Product Generation subsystem Required max time (hours/day) < 24 Measured time (hours/day) OK!

14 5. Topics during calibration and validation period

15 The first image of PALSAR PALSAR JERS-1/SAR

16 Topic 1 : Volcanic activity of Mt. Merapi April 29th : FBS34.3 May 14th : Eruption May 16th : FBS30.8 May 28th : FBS36.9 June 9th : FBS41.5 June 14th : FBS34.3 R:G:B=April 29 th : June 14 th : April 29 th Image on April 29 th (before the eruption) is colored in magenta (R & B). Image on June 14 th (after the eruption) is colored in green (G). Magenta : decrease of roughness flattened area may be caused by pyroclastic flow, lava flow, etc.. Gray, white and black : no change by the eruption

17 Topic 1 : Volcanic activity of Mt. Merapi PALSAR ASTER Magenta 2006/4/29 (FBS34.3) Green 2006/6/14 (FBS34.3) SWIR (Band 8) Nighttime observation ASTER/VNIR (2006/6/6) Daytime observation R:G:B=B3:B2:B1 2006/5/ /5/ /6/6 TIR (Band 10) Nighttime observation

18 Topic 2 : Oil spill in Philippines accident spot

19 6. PALSAR data application plan

20 PALSAR Data Application plan

21 Geological interpretation Sulawesi Island, Indonesia Interpretation Interpretation Map JERS-1/SAR (METI/JAXA) ASTER/VNIR (METI/ERSDAC) Existing Geological Map

22 Detection of natural oil seepage ALOS/PALSAR Negros Island, Philippines Negros Island Tanon Strait Natural exudation oil extracted using JERS-1/SAR Oil slick Cebu Island Exudation oil Original Data METI/JAXA Data analysis METI/AIST/ERSDAC

23 Geological analysis using multi polarimatric SAR data Data SIR-C NASA/JPL Area China Turpan oil deposition basin Observation date 1994/4/13 JERS-1/SAR image Geological structure interpreted newly by muti polarization Multi-polarimetric color composite image ASTER false color image

24 7. Joint research with Zonguldak Karaelmas University

25 Joint research with Zonguldak Karaelmas Univ. ASTER image (2005/06/07) In Zonguldak Coalfield The activity of underground coal mining has been conducted since Zonguldak coalfield has three coal mines (Kozlu, Karadon and Uzulmez) Total reserves of coal is estimated 800 million tons. Coal mines produce annually 3 million tons. The production has been accumulated over 400 million tons since the development began. The developed depth of coalfield is 200 to 700 m below land surface.

26 Effect of deformation (1) (4) (6) (2) (7) (3) (5) (8)

27 Objective 1. to verify the accuracy of deformation measurement by InSAR comparison with the result of GPS measurement 2. to generate the deformation map 3. to install the monitoring network using GPS and InSAR

28 InSAR processing Automatic processing of InSAR : Deguchi(2005) and Deguchi et al.(2006)

29 InSAR processing Uzulmez Karadon Kozluv Zonguldak

30 Deformation map using JERS-1/SAR Existing mining tunnel Planned mining tunnel NEDO(1991), The report on the present state and future trend on the latest policy and exploration of coal resource in the coal-producing countries, part 2, (Turkey, Iran and Pakistan),

31 Preliminary GPS measurement (2005/10-11) JERS-1/SAR : 1995/5-9 GPS : 2005/10 11 (by ZKU) Surface deformation continues linearly Comparison in slant-range direction ZK-01 ZK-02 GPS InSAR (mm) Reference point ZK-01 ZK-02

32 InSAR processing using RADARSAT Zonguldak 2005/10/ /6/1 Kozlu Zonguldak 2005/8/ /4/14 Kozlu

33 Installation of GPS network QuickBird image (2004/5/23)

34 Latest topic Uncalibrated data B perp =1,676(m) Low coherence DEM error? METI, JAXA # Date Cycle /6/ /8/ /9/ /11/ /12/ /2/ /3/ /5/ /6/ /8/ /9/ /11/ /12/ /2/ /3/ PALSAR Observed Basic Scenario

35 Thank you very much!