The Copernicus Global Land Albedo product

The Copernicus
Global Land
Albedo produt
Global Land Service
Status and Evolution
Roselyne Lacaze
on behalf the consortium
Operated through a consortium, lead by
Global Land Service
The Global Component of the Copernicus Land Service
•
A global systematic monitoring service
 Production of Bio-geophysical variables over the globe
 NRT delivery (hourly -> dekad)
 Consistent historical time series (15+ years)
 Quality control
 Archiving & re-processing
 Dissemination & user support
•
To support and consolidate:
 EU contribution to GEO/GEOSS
 EU policies & commitments at international level
Crop Monitoring and Food security in/outside Europe
Biodiversity, Protected areas and Forest cover monitoring
Drought Assessment and Desertification
Carbon modeling, land use and land cover change
Support to Earth Observation Activities in Africa
2nd GlobAlbedo User Consultation – Reading – 17th September 2014
Currently
Portfolio
Variable
Temporal
resolution
Land Surface
Temperature
1 hour
0.05°
Soil Water Index
1 day
LAI / FAPAR /
FCover / NDVI
VCI / VPI
Dry Matter
Productivity
Burnt Area
TOC Reflectance
Surface Albedo
Water bodies
Spatial
Spatial
resolution coverage
NRT
Archive
Sensor
Status
Timeliness
Sensor
Global
 Geo
Operational
1 day
 Geo
0.1°
Global
Metop /
ASCAT
Operational
1 day
Metop /
ASCAT
10 days
1/112°
Global
PROBA-V
Demo
3 days
SPOT/VGT
10 days
1/112°
Global
PROBA-V
Demo
3 days
SPOT/VGT
10 days
1/112°
Global
PROBA-V
Demo
3 days
SPOT/VGT
1 day
10 days
10 days
10 days
1/112°
1/112°
1/112°
1/112°
Global
Global
Global
Global*
PROBA-V
PROBA-V
PROBA-V
PROBA-V
In dvlpt
In dvlpt
In dvlpt
In dvlpt
3 days
3 days
3 days
3 days
SPOT/VGT
SPOT/VGT
SPOT/VGT
SPOT/VGT
More details on http://land.copernicus.eu/global/products
* Currently Africa only
2nd GlobAlbedo User Consultation – Reading – 17th September 2014
Currently
Quality Control: self assessment
•
Technical quality control, at each production center
•
Scientific quality control by expert team
 Monitoring individual processing steps, generated files and
timeliness
 Checking for unreliable values by displaying statistics
 Visual inspection of images
 Per variable:
 Exhaustive evaluation of new products/version before
“operational” status
 Following protocols and metrics defined by CEOS/LPV
 Validation reports available on Global Land website
 Quality monitoring, every 6 months, to check quality keeps stable
along time
•
 Across variables, using a Land Data Assimilation System
Service quality control
2nd GlobAlbedo User Consultation – Reading – 17th September 2014
Currently
Quality Control – independent assessment
•
Audit: statement on the service
 performed on October 2013
•
Reviews: decisions on evolutions of the service
 First cycle performed on May 2014
 Next in November 2014 and Jan/Feb 2015
•
Technical User Board: define product specifications
 First meeting in May 2014
 Next in November 2014
2nd GlobAlbedo User Consultation – Reading – 17th September 2014
Currently
Distribution
•
One entry point: http://land.copernicus.eu/global
•
2 data download channels
 Internet
 Access to NRT + full archive
 Copernicus Global Land portal
(discover, order, subscribe)
 Broadcast
 EUMETCast Africa & South-America
 NRT products only
•
Free and open product access
 Anonymous query
 Automated Registration
2nd GlobAlbedo User Consultation – Reading – 17th September 2014
Currently
Documentation
2nd GlobAlbedo User Consultation – Reading – 17th September 2014
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Evolution – Short term
Secure continuity of km products
•
Keeping consistency between sensors
 SPOT/VGT switch off: end of May 2014
 NRT PROBA-V products: “Demonstration” mode
 LAI, FAPAR, FCover and NDVI, VCI, VPI, DMP
 Preliminary Quality Assessment:
comparison VGT vs PROBA-V products over overlap period
 Full Quality Assessment with one year of products
 NRT PROBA-V products: “In development”
•
 Burnt Areas
 TOC Reflectances, Surface Albedo
 Water Bodies
 Algorithm adaptations necessary
Introduce backup ancillary data
2nd GlobAlbedo User Consultation – Reading – 17th September 2014
Evolution – Short term (2014 - 2015)
Introduce 333m products
•
Derived from PROBA-V data
 Time series starting mid October 2013
•
Algorithms and chains developed in FP7/ImagineS
 NRT production in “demonstration” mode, over Europe
 LAI, FAPAR, FCover: starting in October 2014
 TOC reflectance, Albedo: starting in February 2015
2nd GlobAlbedo User Consultation – Reading – 17th September 2014
Albedo 333m product
Functional organisation
• Algorithm defined by
Meteo-France
• Processing chain
developed by HYGEOS
– Following specifications
of Global Land service
– Complete review
process
• Operated by VITO in
Global Land Service
2nd GlobAlbedo User Consultation
10
Albedo 333m product
Evolutions
ImagineS
Global Land Service
(current)
Methodology
•
•
BRDF model inversion + angular integration +
spectral integration
Time compositing
20 days
30 days
Time frequency
5 days
10 days
Spatial resolution
1/336° (~333m)
1/112° (~1km)
Spatial coverage
1: Europe
2: Globe
Globe
Finer resolution : better cloud decontamination
Finer frequency to discriminate albedo from bare soil
and from vegetation
2nd GlobAlbedo User Consultation
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Long Term Evolution (2015 …)
•
Sustainable global monitoring
•
Add “worldwide” hot-spot monitoring
•
Benefit of capabilities of new sensors
•
Integration of new requested products
 at 1km and 300m resolution
 towards 100m?
 10m-100m major protected areas
 using Sentinel-2 data
 e.g. SWI from Sentinel-1 (launched on 28th March 2014)
 phenology, water level, snow extent,…
2nd GlobAlbedo User Consultation – Reading – 17th September 2014
Conclusion
•
Sustainable delivery of NRT global products
 13 global biophysical variables
 Linked to consistent time series
 Continuous quality monitoring
•
Challenging continuity of 1km products
 Replacement of SPOT/VGT by PROBA-V sensor
 Products in “demonstration” until full quality assessment
•
Evolution towards 300m products
 Starting with few variables over Europe
 Gradual extension of production from continent to globe
 Thanks to a close collaboration with ImagineS project
2nd GlobAlbedo User Consultation – Reading – 17th September 2014
Contacts
Thank you for your attention!
Global Land Service
• http://fp7-imagines.eu
• Coordinator:
Roselyne Lacaze – HYGEOS
[email protected]
• Consortium
• http://land.copernicus.eu/global
• Coordinator: Bruno Smets – VITO
[email protected]
• S&T contact: Roselyne Lacaze – HYGEOS
[email protected]
• Helpdesk: [email protected]
• Contract Management:
[email protected]
• Consortium
Associates
2nd GlobAlbedo User Consultation – Reading – 17th September 2014
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