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Global Interagency IPY Polar Snapshot Year – PowerPoint PPT presentation

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Title: P1259082049kvpda


1
Global Inter-agency IPY Polar Snapshot Year
(GIIPSY)
  • Co-Chairs
  • Mark Drinkwater, ESA/ESTEC
  • Ken Jezek, Byrd Polar Research Center, Ohio State
  • 2nd STG Meeting, 26-27 Nov. 2007,
  • Eumetsat, Darmstadt, Germany

2

Global Inter-agency IPY Polar Snapshot Year
(GIIPSY)
  • GIIPSY aims to facilitate
  • Use of current and soon to be launched Earth
    Observing satellites to develop broad spectral,
    medium and high resolution snapshots of the polar
    regions.
  • Use of the snapshots as gauges for assessing the
    impacts of past and future high latitude
    environmental changes.
  • Establishment of technical and programmatic
    infrastructure for sustaining international
    observations beyond IPY.

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5
Implementing GIIPSY through the IPY SPACE TASK
GROUP (STG)
  • STG SUMMARY
  • First meeting of STG 1 took place in WMO
    Headquarters from 17-19 Jan, 2007
  • Participation of the following Space Agencies
  • CMA, CNES, CSA, DLR, ESA, Eumetsat, NASA,
    Roshydromet,
  • Representation from IPY-Joint Committee,
    WCRP-CliC, GIIPSY, WMO Space Office

6
Key Outcomes from STG 1
  • STG made substantive progress on developing the
    concept of an effective space component of the
    observing system for the polar regions during
    IPY. This would deliver a series of firsts,
    including
  • For the first time, pole to coast multi-frequency
    InSAR measurements of ice-sheet surface velocity.
  • For the first time, repeat fine-resolution SAR
    mapping of the entire Southern Ocean sea-ice
    cover for sea ice motion.
  • For the first time, one complete high resolution
    visible and thermal IR (Vis/IR) snapshot of
    circumpolar permafrost.
  • For the first time, pan-Arctic high and moderate
    resolution Vis/IR snapshots of freshwater (lake
    and river) freeze-up and break-up.
  • The Space Agencies introduced the concept of IPY
    data portfolios as an organizing principle. Each
    Agency will determine what data will be made
    available to IPY scientists as part of its
    portfolio. The intention is to provide open and
    easy access to these portfolios for scientific
    use. The content of the portfolios will evolve
    through the STG coordination of planning,
    acquisition, downlink and processing during IPY
    and beyond, as a legacy.

7
Key Objectives for STG-2
  • In view of the high importance and priority of
    achieving the scientific firsts it is highly
    desirable if interested groups continue to urge
    Space Agencies to do their utmost in developing
    and adopting a coordinated approach for the
    implementation to these activities for the
    remaining period of IPY.
  • One of the key issues is how to secure the legacy
    of a long-term observing system. This legacy
    shall include high-level products resulting from
    the science of IPY, e.g. high spatial resolution
    digital terrain maps of the polar regions. One
    approach that may be considered for long term
    security of the IPY legacy is to establish a link
    to GEO.

8
Successes
  • CSA Arctic Science Archive Processing Project
    (ASAP)
  • CSA Modified Antarctic Mapping Mission (MiniMAMM)
  • DLR TerraSAR-X Support of IPY
  • ESA NASA Dedicated IPY AOs
  • Dedicated IPY Acquisition Planning
  • Coordinated satellite-based IPY operational ice
    services
  • IPY ERS-2 Envisat Inter-satellite InSAR

9
ASAR Background Regional Mission (BRM)
Default planning, so-called Background Regional
Mission (BRM), for ASAR High Resolution modes
(Image, Wide Swath and Alternating polarization),
defines an acquisition strategy with the aim to
build up consistent data sets taking into account
the overall mission objectives.
10
ESA ASAR Acquisition Planning
11
ESA Planned ASAR Image ModeSwath 2 HH-pol
ASAR BRM planning for the cycle 63 applicable
from 29 Oct. - 3 Dec. 2007
12
ESA Planned ASAR WS Mode HH-pol
ASAR BRM planning for the cycle 63 applicable
from 29 Oct. - 3 Dec. 2007
13
ERS-2 - ENVISAT inter-satellite interferometry
(1)
Measuring velocity of fast moving glaciers
2 October 2007 Preliminary results Kangerdlugssuaq
Glacier, Greenland
Potential applications observe understand
glacier ice dynamics and response to climate
change.
Next step Retrieval of Ice motion once ERS-2
precision baselines are available Fringes were
not visible in ERS-1/2 1-day data on this glacier
(too fast).
Courtesy E. Rignot JPL- NASA
14
ERS-2 - ENVISAT inter-satellite interferometry
(2)
High precision Low-relief DEM
3 October 2007 Yamalo Nenetsky AO, Siberia 70.2
deg N, 75.5 deg E) Ambiguity height 5.3 m
Courtesy U. Wegmueller, M. Santoro, Gamma Remote
Sensing
15
CSA Modified Antarctic Mapping Mission (MiniMAMM)
November 2007
16
CSA Arctic Science Archive Processing Project
(ASAP)
  • National consultation (Nov-06)
  • Three phases under which more than 7 500
    Radarsat-1 archive data will be processed
  • Phase 1 (50) Blanket coverage in Fine 1 of the
    Canadian polar region and the Arctic Archipelago
    (2000-2001)
  • Phase 2 (25) Seasonal polar snapshots between
    2003 and now
  • Phase 3 (25) Processing of images under
    specific areas of interests identified and agreed
    upon as supersites by the research communities
  • Web Portal for images and products dissemination

17
CSA ASAP Coverages
18
CSA ASAP CoveragesFrozen Baseline F1
Phase 1 - Baseline Fine Mode. Northern Canadian
complete coverage (3098 scenes)
19
CSA ASAP CoveragesMin and Max Sea Ice Extent
Phase 2 - - Arctic Basin ScanSAR Sea-Ice
Snapshots (364 scenes)
20
CSA ASAP Canadian Supersites
21
CSA ASAP Coverages forCanadian Supersites
Phase 3 - Arctic Super-sites (4038 scenes)
22
Partnerships for IPY Data Access
  • CSA/NASA/UAF
  • Working together to make RADARSAT-1 data
    available as specific legacy data sets
  • The project is well underway
  • JAXA/NOAA/NASA/UAF/ESA
  • Working with JAXA and the European counterpart to
    AADN to make ALOS data available in the IPY
    context
  • The project is defined, but not implemented
  • ADN meeting next week

23
IPY RADARSAT-1 Legacy Datasets
  • The Goal for the IPY Legacy datasets is to
    present RADARSAT-1 data to a new generation of
    researchers interested in studying Polar regions.

24
2007 Arctic Sea Ice Extent Record
Minimum Captured by CSA RADARSAT-1
The Alaska Satellite Facility (ASF) downlinks and
mosaics Canadian Space Agency (CSA) RADARSAT-1
images of the western Arctic Ocean every three
days. These synthetic aperture radar (SAR) images
are acquired both day and night regardless of
weather conditions. The data are used for
research and operational monitoring of changes in
sea ice cover. The animation to the right shows
changing sea ice conditions from mid-July to
mid-September and documents the evolution of a
record minimum extent in 2007. The transparent
blue mask indicates the sea ice edge as
determined by analysts at the National Ice Center
(NIC).
25
2007 Arctic Sea Ice Extent Record
Minimum Captured by NIC Charts
The National Ice Center produces weekly and
bi-weekly Arctic charts that also captured the
evolution of the 2007 sea ice extent record
minimum.. The animation of bi-weekly NIC charts
to the right shows changing sea ice conditions
from March 12 to September 24 2007.
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27
Old CSA ASAP Phase 2?
Circumpolar ScanSAR Seasonal Coverage
Spring 2004
March 2007
September 2007
Winter 2004
28
How do you get these data?
  • End User License Agreement (EULA)
  • user must agree to terms and conditions.
  • Registration required
  • data will be password protected. Once users
    complete the EULA and registration, access to IPY
    data will be granted by USO.
  • users will log in through the URSA home page to
    get to the IPY data.

29
How do you get these data?
30
Coverage areas
  • Greenland Sept. 2000 Jan. 2001
  • Antarctica Sept. Oct. 1997
  • Kamchatka Dec. 1999 Jan. 2000
  • Sea Ice Sept. Mar. 2003 - 2006
  • Toolik Station - Oct. 2004 Dec. 2006
  • Other suggested sites?

31
GIIPSY Continuing Challenges
  • Increasing the number of Space Agencies
    participating in the STG we encourage global
    involvement (Italy, India, others?)
  • Securing commitments of key data sets such as
    L-band SAR and high resolution optical repeat
    observations of the arctic ice pack.

32
IPY STG Schedule
33
GIIPSY Information
  • Information on GIIPSY is available at
  • http//bprc.osu.edu/rsl/GIIPSY/
  • The site includes minutes of the STG meeting and
    the two STG teleconferences.

34
BACK-UP Vu-Graphs
35
GIIPSY Legacy Objectives
  • A. Sea level rise, and hemispheric climate
    (Glaciers, ice caps, ice sheets) 1)  For the
    first time, one summer, one winter SAR snapshot
    of the polar ice sheets,  glaciers and ice caps.
    Near simultaneous imagery at L, C, and X band,
    polarimetric quad pole for documenting ice
    surface physical parameters. 2)  For the first
    time, pole-to-coast multi-frequency InSAR
    measurements of ice surface velocity.3)  For the
    first time, repeated X-band InSAR topography for
    detecting local changes in ice sheet elevation
    associated with motion of subglacial water. 4) 
    For the first time, one summer, one winter, high
    resolution visible/near IR/ TIR snapshot of the
    entirety of the polar ice sheets, glaciers and
    small ice caps followed with bimonthly coverage
    of select glaciers for snow-zone mapping 5) 
    Continued measurements of ice surface elevation
    from radar and laser altimeters (spaceborne and
    airborne) for volume change 6)  Continued, daily
    visible and infrared medium-resolution imaging of
    the entirety of the polar ice sheets, glaciers
    and ice caps and to be compiled into monthly
    maps. 7)  Continued, daily medium-to-coarse
    resolution active and passive microwave images of
    the polar ice sheets, ice fields and ice caps for
    melt extent 8)  Continued measurements of the
    gravity field for mass balance.

36
IPY Legacy Objectives
  • B. Ocean circulation and polar air-sea
    interactions (Sea ice) 1)  For the first time,
    L-band SAR mapping of the Arctic ocean and
    marginal seas sea ice cover for leads and ridges.
    2)  For the first time, repeat fine resolution
    SAR mapping of the entire Southern ocean sea ice
    cover for ice motion 3)  For the first time, SAR
    and optical fine resolution mappings of the
    entire Arctic ocean 4)  Continued 3-day medium
    resolution SAR mapping of sea ice covered waters
    for motion, and melt pond coverage 5)  Continued
    passive microwave observations of sea ice
    concentration and extent 6)  Continued laser and
    radar altimeter measurements of ice thickness and
    sea surface topography
  • 7) Measurements of IPY Polar Geoid
  • C. Regional climate, precipitation and hydrology
    (Terrestrial snow cover) 1)  Daily medium
    resolution visible/near IR/TIR observations of
    all snow covered terrain 2)  Daily passive
    microwave observations of snow covered terrain
    for determination of snow water equivalent

37
IPY Legacy Objectives
D. Changing permafrost and Arctic climate
(Permafrost) 1)  For the first time, one
complete high resolution snapshot of all polar
permafrost terrain at L, C and X band. 2)  For
the first time, one complete, high resolution
visible and thermal IR snapshot of all polar
permafrost terrain 3)  Continued medium and
coarse active and passive microwave observations
of all polar permafrost
  • E. Aquatic ecosystems, transportation and
    hazards (Lake and river ice) 1)  For the first
    time, pan-arctic high and medium resolution
    microwave snapshots of fresh water-
    break/freeze-up 2)  For the first time,
    pan-arctic high and medium resolution visible,
    near IR and TIR snapshots of fresh water-
    break/freeze-up
  • 3) Seasonal, low-frequency (6-10 GHz)
    passive microwave observations of lake ice
    thickness

38
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