Long Term Data Preservation Long Term Data Preservation for Global Change Study for Global Change Study GUO Huadong GUO Huadong [email protected] Feb.01,2011 Geneva, Switzerland Feb.01,2011 Geneva, Switzerland
Mar 17, 2016
Long Term Data Preservation Long Term Data Preservation for Global Change Studyfor Global Change Study
GUO HuadongGUO [email protected]
Feb.01,2011 Geneva, SwitzerlandFeb.01,2011 Geneva, Switzerland
Impact of Global Change
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Snow reduceIsland Disappear Glacier retreat
lake area reduces East Juyanhai
1986/6/91986/6/9 2002/5/282002/5/28
Prairie degeneration 官厅水库 , Beijing
1999
2009
天山 Glacier
甘肃省甘南藏族自治州玛曲县 ,09 July 2004
1962
1994
1994
Impact of Global Change
3
Mudrock flow nujiang dongyue river, 2010 Flood,liu zhou, guanxi , 2009 Arid,2009
Typhoon,2010,No.3, Chanthu Snow disaster,2009,hunan Heat wave, 2009, Jun
National S&T Plan
Mid-Long Term Science and Technology Mid-Long Term Science and Technology Development Plan (2006-2020)Development Plan (2006-2020)
• Earth system processes and their effect on resources, environment and disasters; • Influential mechanism and extent of human activities on the earth system; • Global changes and regional responses.
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National Research Support Recently
Global change studies have been supported by the Ministry of Science and Technology ( MOST), Chinese Academy of Sciences (CAS), and the National Natural Science Foundation of China (NSFC).
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50.3 %
32.2 %
17.5 %
MOST US$
76.08million
CAS US$ 48.72 million
NSFC US$ 26.47 million
Chinese Earth Observation Satellites
• Meteorological Satellites• Polar Orbit FY-1 A, B, C, D 4• Geo-stationary FY-2A, 2B, 2C,2D,2E 3• Marine Satellite HY-1 1• Resource Satellites (CBERS, ZY, Beijing, Yaogan, Tsinghua) 7• Environmental and Disaster Monitoring Satellites 2• Communication Satellites 7• Navigation Satellites Beidou -1 3 • Return Land Satellites 17• Scientific experiment Satellites 15
• Spacecrafts SZ –1, 2, 3, 4, 5, 6 , 7 7
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• Chinese Meteorological Satellites Programs– FY-1 Series: China's 1st Generation of Polar Meteorological Satellites(4
satellites)– FY-2: The First Generation of Geostationary Meteorological Satellite of
China– FY3:Polar Meteorological Satellite (9/2008 launch)
ChinChineseese Earth Observation Satellites Earth Observation Satellites Meteorology Satellites of China - NSMCMeteorology Satellites of China - NSMC
FY-3, Polar Orbit, 5/2008FY-3, Polar Orbit, 5/2008
FY-1FY-1
FY-1 Polar Orbit FY-1 Polar Orbit FY-2 GeostationaryFY-2 Geostationary
Tentative Schedule for Future FY SeriesTentative Schedule for Future FY Series
• HY-1 satelliteTo detect the marine environmental parameters of the China Seas, including chlorophyll concentration, suspended sediment concentration, dissolved organic matter, pollutants, as well as sea surface temperature.
Chinese Earth Observation SatelliteChinese Earth Observation SatelliteOcean Satellites of China - NSOACOcean Satellites of China - NSOAC HY-1B, 1/4/2007HY-1B, 1/4/2007
SuspendeSuspended d sediment sediment distributiodistributionn
Red tide
HY-1 ApplicationHY-1 Application
SST
Future HY-2Future HY-2
• The first CBERS (CBRES-1) was successfully launched on October 14, 1999 and the second one (CBERS-02) was on October 21, 2003.
Payloads CCD IRMSS WFIFocal distance
(mm) 520 1000/500 -
Band (μm)
1: 0.45-0.522: 0.52-0.593: 0.63-0.694: 0.77-0.895: 0.51-0.73
6: 0.50-0.907: 1.55-1.758: 2.08-2.359: 10.4-12.5
10: 0.63-0.6911: 0.77-0.89
Spatial resolution 19.5M 6,7,8: 78M
9: 156M 256M
Temperature resolution - 1.2K -
Swath 113KM 119.5KM 890KM
Speed (Mb/s) 53×2 6.13 1.1
Pixels 5812 6,7,8: 15369: 768 3456
FOV 8.32º 8.8º 59.6º
Orbit 778km
Chinese Earth Observation Satellite Chinese Earth Observation Satellite Earth Resources Satellites --CBERSEarth Resources Satellites --CBERS
CBERSCBERS
The first stage: 3 satellites
2 optical satellites+ 1 SAR satellites
HJ-1-A/B 、 HJ-1-C
The second stage: 8 satellites
4 optical satellites+4 SAR satellites
HJ-1 small satellite constellationHJ-1 small satellite constellation
HJ-1-A/B
Chinese Earth Observation SatellitesChinese Earth Observation Satellites
HJ-1-C
CEODE, CAS
CEODE ― Center for Earth Observation and Digital Earth Belongs to Chinese Academy of Sciences.
Established on August 23, 2007 by merging three CAS units: – Remote Sensing Satellite Center– Airborne Remote Sensing Center – Laboratory of Digital Earth Sciences.
CEODE is committed to: operation of spaceborne and airborne earth observation system and related data services, as well as the exploration of technologies for earth observation and their application demonstrations.
CEODE-A National Research InstituteDirector General
Division for Operation of
Airborne Remote Sensing
Satellite Remote Sensing Center
Division for Operation of
Satellite Ground Systems
Ground System Engineering
Division
Satellite Data Pre-processing Division
The Miyun Ground Station
The Sanya Ground Station
Division for the Airplane
Engineering
Division for Optical System Engineering
Division for Data Preprocessing
Division for Micro-wave System Engineering
Division of Digital Earth System
Division of Digital Land
Division of Microwave Earth
Observation
Division of Digital Ocean and
Atmosphere
Division of Optical Earth Observation
Section for Data Management
Section for Data Technology
Section for Customer Service
Spatial Data Center Lab. of Digital Earth Sciences
Airborne Remote Sensing Center
Section for Value Added Products
Collaborative Research Unit
CAS-NRCANCapacity Building
Center
Joint Centre for Spatial Information CEODE-
CRCSI
Joint Laboratory for Remote Sensing and
Archeology
Joint Lab. for Environmental RS and
Data Assimilation
The Kashi Ground Station
Spatial Technology Application Center for International Culture and Natural Heritage
CEODE: CEODE: Satellite Data Receiving Station SystemSatellite Data Receiving Station System
• Miyun Receiving Station (Northern China)
• Kashi Receiving Station (Western China)
• Sanya Receiving Station (Southern China)
EO Data Acquisition & ArchivingEO Data Acquisition & Archiving
Satellite Data Received by CEODE
International Satellites
Optical Satellite
LANDSAT-5 1986 -
LANDSAT-7 1999 - 2004
SPOT-1 1998 – 2002
SPOT-2 1998 - 2002
SPOT-4 2000 -
SPOT-5 2002 -
RESOURCESAT-1 2005 -
Radar Satellite
ENVISAT 2003-
ERS-1 1995 - 2000
ERS-2 1995 -
RADARSAT-1 1997 -
RADARSAT-2 2008 -
Domestic Satellites
Optical Satellite
CBERS-01 1999 – 2003
CBERS-02 2003 - 2008
CBERS-02B 2007 - 2010
HJ-1A 2008 -
HJ-1B 2008 -
Over 2.50 million scenes of satellite data have been acquired and preserved at CEODE since 1986, providing a precious database for the earth observation .
• Two Cessna Citation S/II Aircrafts • Two ARJ 21-700ER Aircrafts• More than 12 sensors operating from visible-infrared to microwave bands
CEODE: Airborne CEODE: Airborne Remote Sensing SystemRemote Sensing System
EO Data Acquisition & ArchivingEO Data Acquisition & Archiving
Over 50TB data from different kinds of sensor has been acquired .
Played a key role in Wenchuan earthquake (2008) and Yushu earthquake(2010) monitoring, Beijing Olympic village construction(2000~2009), as well as other scientific researches.
The value of historic data is not decreased with time passing by.
Necessary for long term scientific researches and environmental monitoring applications.
LTDP is a common knowledge in EO field, and the trend for LTDP increased strongly in the past years.
Organizations, e.g. USGS, ESA, as well as CEODE, are making efforts to archive LTDP.
Challenges existing at the points: proper preservation, safe and efficient accessing, data archiving equipment and media evolution, etc.
Long Term Data Preservation Long Term Data Preservation
Before 1999
HDDT mainly
Evolution of Data Archiving at CEODEEvolution of Data Archiving at CEODE
1999 ~ 2008
DLT / SDLT / AIT mainly
After 2008
Massive Archiving & Management System
Data Massive Archiving & Management System Giving up the old mode of disperse processing system with its own tape driver. Built CEODE’s central Massive Archiving System for all the archived raw data
and to be used for all processing systems. Fiber channel and SATA disk arrays, tape robot, are being used. LTO tape used as the permanent archiving media. Automatic management for data archiving, retrieving and migration.
Example:
Projects for LTDP Projects for LTDP
SPOT-5 system
LANDSAT system
SPOT-5 system
LANDSAT system
ENVISAT system
RESOURCESAT system
ENVISAT system
RESOURCESAT system
Projects for LTDPProjects for LTDP
Data Remote Backup System Located at Miyun Station, 100km
away from CEODE headquarter. To achieve the purpose of data
double preservation. Dual site mode of data archiving,
backup, as well we being accessed from other sites.
Data retrieving from the other sites in case of local data or media problem.
Catalogue & Browse System Containing the catalogue and
browse image for all the spaceborne EO data of CEODE.
On-line and open to the world. Users are allowed to query and
then to send their requirements. A window to make the data be
accessed and used for scientific researches and remote sensing applications.
Projects for LTDP Projects for LTDP
973 project - Comprehensive Experiment
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There are two experimental areas: one is the roof of the world and the other an area dramatically altered by human activities. Understanding change in these two areas can help contribute to deeper understanding of humankind on global change.
These two areas in China represent specific natural and human environments where multi-scale remotely collected data (both aircraft and spacecraft) can be mutually supportive for global change research.
Develop Methods for Using Multi-scale Observations for Studying Sensitive Global Change Mechanisms .
Global Change Studies with EO
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Tibet Plateau Test Site
海洋 城市群 湿地 海岸带 草原生态
ENVISAT
RADARSATLANDSAT
SPOT
珠峰站
林芝站纳木错站
阿里站 慕士塔格站
Bohai Bay Test SiteGlobal Change Studies with EO
Pearl River Delta Area: Urbanization1988 1998
200719881988-19981998-2007
Environment Change Studies
Glacier Movement
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Glacier movement by InSARDonkemadi
South Asian brown cloud to climate and Tibet Plateau glacier melting influence
EO raw data: the recorder for the change of the Earth.
The aged data has shown its importance for the global change and can support to IPCC.
Necessity of LTDP increased strongly in the past years.
The challenges of LTDP come from the huge volume and the evolution of archiving media.
Should be doing efforts to achieve the data archiving safer and more efficient.