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Access to SPOT and Pleiades for science
Steven Hosford & Delphine Fontannaz, CNES
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SO
MM
AIR
E
ACCESS TO NEW IMAGES AND ARCHIVE IMAGES AS
YET NOT PROCESSED – ISIS PROGRAMME SPOT 1-5
REF3D AND SPOTDEM
PLÉIADES IN ISIS
ACCESS TO IMAGES/PRODUCTS HELD IN CNES
DATABASES AND PROVIDED THROUGH SCIENCE
PROGRAMMES SPOT WORLD HERITAGE
SCIENCE PROGRAMMES
ISIS Programme
Objective:
Facilitate access to commercial optical imagery acquired by
satellites developed by CNES (SPOT 1-5, Pléiades)
How does it work?
Scientists submit image requests on the ISIS website/email
including science objectives and methods used
CNES reviews and validates requests based on information
provided
Images are tasked/acquired/processed/delivered by Airbus DS
directly to science user
Who is eligible ?
Scientists based in EU+Iceland/Switzerland/Norway
Image request must be for science use (non commercial)
Images can be shared with partners outside Europe
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www.isis-cnes.fr
ISIS Programme – SPOT 1-5 products
SPOT images / DEMs available:
All types of SPOT 1 – 5 image products
Ref3D and SPOTDEM
Ref3D
Generated by stereo data acquired by HRS instrument on board SPOT 5
30m pixel DTED 2 DEM (Z accuracy ~10m, planimetric ~10m)
Ortho image reference layer (5m pixel size)
Quality indicators for source data
Delivered as 111 x 111 km tile
SPOT DEM
Generated by stereo data acquired by HRS instrument on board SPOT 5
30m/20m pixel DTED 2 DEM (Z accuracy ~10m, planimetric ~10m)
No ortho image layer
Delivered by km2
Per pixel quality information (e.g. absolute horizontal/vertical accuracy)
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Pleiades in the ISIS programme
Status
■Pleiades is now available through the ISIS programme – image
requests accepted from European researchers
■ Images can be shared with international partners
How does it work?
■ Possible to submit requests for
Tasking satellites to acquire new images
Producing archive images
■ All Labs will need to sign an agreement with CNES to become
a registered “ISIS user”
■ Once “ISIS user” status is granted
for European users this will allow image acquisition requests
for non-European labs this will grant “partner status” (access to
imagery already acquired)
All Pleiades imagery acquired through ISIS will be shared with
registered ISIS users
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Pleiades in the ISIS programme
Data costs for European labs
Based on french institutional “cost-price”
European lab will pay
For an new acquisition ~1.8€/km2 (minimum request 100 km2)
For an archive image ~1.4€/km2 (minimum request 100 km2)
Stereo and Tri-stereao x2 and x3 respectively
Products
“Primary” and “Ortho” products
Currently no DEM products proposed, however possibility to
acquire stereo/tri-stereo (three images, 3 image pairs) to generate
DEMs
ISIS user lab registration forms to be signed by laboratory
director
Contact: [email protected] or [email protected]
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Contact details for researchers to request
access to images
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SPOT 1-5 www.isis-cnes.fr
Pleiades [email protected]
Access to images/products held in
CNES databases and through science
programmes
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WG Disasters
SPIRIT
SPOT World Heritage Programme
Objectives:
■Open the near 30 year SPOT archive to non-commercial use.
■Creation of a free-to-access reference database of SPOT
imagery
■By responding to user requests, provide an « intelligent filter »
to guide processing
Principles
■ Images are made available free of charge for non commercial
use
■Registration required prior to download
■Function through open call for Areas of Interest to the science
community / international programmes (GEO, CEOS, etc.)
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SPOT World Heritage Programme
Products
■Over 100000 ortho-
rectified SPOT 1-5 images
available on
theia-landsat .cnes.fr
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Future plans
■Feasability study on processing the complete archive just
completed
■CNES decision to proceed with processing the entire SPOT 1-5
archive
■First data should be accessible from mid-2018
SPOT World Heritage Programme
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Space Data Coordination Group for
GFOI operational component: CNES provides access to historical
SPOT 1-5
GFOI R&D Component:
CNES provides access to historical SPOT 1-5 and Pleiades imagery
8168 km2 of Pleiades imagery provided in 2016.
Contact for research component : [email protected]
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JECAM/
Request:
■ SPOT 5. Monthly site coverage from 2002 during growing
season
■ Pleiades. One cloud free image per site during the period
Close to 6000km2 of Pleiades
imagery provide to JECAM sites
in 2016
Contacts for research component : [email protected]
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Site Name 10km
Region
25km
Region
Growing Season
(range of months)
Argentina YES YES September to April
Belgium NO YES March to August
Brazil/Tocantins (Matopiba) NO YES January to December
Burkina Faso YES YES May to December
Canada/Red River (Manitoba) NO YES April to November
Canada/South Nation (Ontario) NO YES April to November
China/Guandong (Taishan) YES YES March to November
China/Jiangsu NO YES June to November
China/Shandong (Yucheng) YES YES April to September
France/Toulouse YES YES February to October
Morocco/Tensift YES YES December to July
Russia/Stravopol YES YES April to November
Russia/Tula (Tulskaya) NO YES April to November
Tunisia/Merguellil NO YES February to October
Ukraine YES YES April to November
CEOS Working Group on Disasters
Request : Specific zones requested by each pilot
■ SPOT 1-5 provided via SPOT World Heritage
■ Pleiades
Status: Over 12000km2 of Pléiades data provided
Some SPOT data already available (theia-landsat.cnes.fr)
Contacts for CEOS pilots:
■ Seismic pilot: Philippe Bally [email protected];
Stefano Salvi [email protected]
■ Volcano pilot: Simona Zoffoli [email protected] ;
Mike Poland [email protected]
■ Flood pilot: Stu Frye [email protected];
Bob Kuligowski [email protected]
■ Recovery Observatory:Hélène DeBoissezon [email protected]
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WMO Polar Space Task Group
SPIRIT database
■Substantial archive of stereo images acquired during 2007-2009 IPY
period.
■New acquisitions carried out during 2013-2014, SPIRIT II campaign
■Over 100 DEMs of Artic, Antarctic and “third pole” glaciers produced
and available to global glaciology community
SPIRIT products available at theia-landsat.cnes.fr
One-off acquisitions have shown the utility of Pleiades stereo/
tristereo acqusitions and resulting DEMs
A structured “Pleiades Glacier Observatory project has begun in june
2016 – contact [email protected]
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The Pléiades Glacier Observatory
• Entirely funded by the French Space Agency (CNES)
• Facilitate access to Pleiades satellite data for glaciologists
• Acquire stereo data at the right time of the year (i.e. end of the melt season)
• Sites selected in coordination with WGMS: initial goals are to use these data to (i) provide a DEM/image of benchmark glaciers and (ii) help to assess the regional representativeness of the glaciers monitored in the field.
• One contact scientist for each site to define the acquisition parameters and validate the images when acquired.
• Raw stereo-data are provided. Possibility to get a DEM + ortho-image (generation @LEGOS using Ames Stereo Pipeline)
• PGO stereo images will be freely available to all for scientific purpose, just need to sign a specific agreement.
• Two acquisition campaigns done: Aug-Oct 2016 (NH) and Feb-April 2017 (SH)
CANADIAN
ARCTIC SVALBARD
NORWAY
EUROPEAN
ALPS
ALASKA
ROCKIES
COASTAL MTS
TIEN SHAN
KARAKORAM
Pléiades Glacier
Observatory – 2016 north Hemisphere
