joint gwp cee/dmcsee training: copernicus land monitoring services for drought analysis by roel van...
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Joint GWP CEE/DMCSEE training: Copernicus Land Monitoring Services for drought analysis by Roel Van HoolstTRANSCRIPT
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Global Land Service
Operated through a consortium, lead by
Copernicus
Land Monitoring Services for
drought analysis
Bruno Smets, Roel Van Hoolst VITO
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Overview of Copernicus
Copernicus
Space Component European Space Agency (ESA)
Sentinel & contributing satellite missions, ground segments
In-situ Component European Environment Agency (EEA)
land, air and water monitoring sensors
Service Component European Commission (EC)
Land Marine Atmosphere Emergency Security Climate change
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Global Land Service
• Support and consolidate:
– EU contribution to GEO/GEOSS
– EU policies at international level
• e. g. Climate and Development policies
– EU commitments under international treaties and conventions
• e. g. UN “Rio” conventions: UNFCCC, UNCCD, UNCBD
• EU Policy focus:
– 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 African Activities
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4
Sustainable roadmap
SPOT-VEGETATION 1 SPOT-VEGETATION 2
METOP-A METOP-B
PROBA-V SENTINEL-3A
98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
METOP-C
SENTINEL-3B
SENTINEL-1A SENTINEL-1B
GIO COPERNICUS OPERATONS
R&D H2020 R&D FP6, FP7
PROBA-V follow up
services
space
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Portfolio 2014 Variable Temporal
Coverage Temporal resolution
Spatial coverage
Spatial resolution
Sensor Timeliness
LAI/FAPAR/FCover 1999 – present 10 days Global 1km
SPOT/VGT PROBA-V
3 days
2014 – present 10 days* Europe 333m PROBA-V 3 days
NDVI/VCI/VPI 1999 – present 10 days Global 1km SPOT/VGT PROBA-V
3 days
Dry Matter Productivity 2009 – present 10 days Global 1km SPOT/VGT PROBA-V
3 days
Burnt Area 1999 – present 1 day Global 1km SPOT/VGT PROBA-V
3 days
TOC Reflectance 2013 – present 10 days Global 1km SPOT/VGT PROBA-V
3 days
Surface Albedo 1999 – present 10 days Global 1km SPOT/VGT PROBA-V
3 days
Land Surface Temperature
2009 – present 1 hour
10 days* Global 0.05° Geo 1 day
Soil Water Index 2007 – present 1 day
10 days* Global 0.1°
Metop / ASCAT
1 day
Water bodies 1999 – present 10 days Africa
Global* 1km
SPOT/VGT PROBA-V
3 days
* Coming soon
http://proba-v.vgt.vito.be/
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Quality Control
• Self-assessment by Consortium#1
– Technical product quality
– Scientific product quality
• Quality Assessment (CEOS LPV)
• Quality Monitoring, incl. cross-cut
– Service quality
• Independent assessment by Consortium#2
– Audit
– Reviews
– Technical user group
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Documentation
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Product access
• Data policy:
– Follows Copernicus policy: free and open access
• Internet access http://land.copernicus.eu/global/access
– Access to NRT + full archive
– Anonymous query
– Simple (automated) registration to access data
• Satellite broadcast (EUMETCast)
– NRT
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9 Copernicus Global Land Service
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10 Copernicus Global Land Service
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Crop monitoring information support
• Qualitative analysis
- Highlight areas with anomalies
- Reduce the field of investigation of the ground truth.
- Convergence of evidence with different sources of information (RS and field network)
• Quantitative analysis
- Yield forecast
• Impact analysis
- Quantify the extension of an anomaly
- Area, villages, population, production
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Demonstration of the use of Copernicus product
• Generate standard crop monitoring analysis products from Copernicus Land service data.
• Preliminary test made with fAPAR monthly composite
• Over Slovenia
• Using the JRC free software SPIRITS
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Post-Processing Software: SPIRITS • JRC-VITO development: Software for the Processing and
Interpretation of Remotely Sensed Image Time Series
• All tools to exploit RS time series & to make agro-meteorological bulletins
• Freely available, incl. Manual & Tutorials
• Many users: VITO, JRC, FAO, WFP, Africa
• Training sessions (± 50 so far)
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The challenge of information analysis The analysis support products
• MAP analysis over Slovenia
- fAPAR evolution and anomalies
- Return frequency of fAPAR anomalies
- Cluster analysis
• GRAPH analysis per admin/land use
- fAPAR profil evolution
- at admin level 1 and 2
- over agriculture or forest/natural zones
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The challenge of information analysis The reference data set
• Analysis made at statistics region and districts
• Through GLC2006 agriculture area
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MAPs analysis protocols in SLOVENIA
fAPAR
1 dekad at a time N dekads at a time A
NO
MA
LIES
Cluster
VA
LUE
Cluster Relative difference
Return frequency
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Ten day fAPAR Visualize the vegetation development extension Need to display all the time series to get the time evolution 10 day fAPAR data
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Ten day fAPAR anomalies Visualize the vegetation development anomalies (stress, drought) Difficult to identify area with persistent anomalies
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Ten day fAPAR anomalies Introduce another way to measure the anomalies Use return frequency value
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Cluster analysis of fAPAR evolution over AGRICULTURE space and time synthesis combine start/duration/intensity/extension of fAPAR values focus on land use (here “agriculture”)
- Low
fAPAR
+ 1
2 3 4
5
high fAPAR
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Cluster analysis of fAPAR anomalies space and time synthesis combine start/duration/intensity/extension of an anomaly along the season focus on land use (here “agriculture”)
Mean 1999-2012
2013 above
+
1 2
3
4
5
- 2013
below
Class with a significant negative anomaly: -20% below mean during more than one month
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GRAPH analysis protocols
1 Period / 1 Year N Periods / 1 Year
Impact anomalies analysis
AN
OM
ALI
ES
VA
LUE
MAY JUNE JULY AUGUST SEPTEMBER OCTOBER
1 11 21 1 11 21 1 11 21 1 11 21 1 11 21 1 11 21
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
NDVI RFE
INTENSITY
Impact anomalies analysis
%DIF NDVI
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fAPAR profil evolution per statistics region and per land use (agriculture)
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fAPAR profil evolution per district and per land use (agriculture)
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NDVI profil evolution to analyse late/early start and higer/lower vegetation
by comparing 2013 with average/min/max G
OO
D
DEV
ELO
PM
ENT
BEL
OW
A
VER
AG
E PASTURE AGRICULTURE
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Seasonal fAPAR evolution over the all historical series under implementation
per statistics region and per land use (agriculture) comparison of on going season with all the historical years identify late start, shortened season, lower/higher potential
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Seasonal fAPAR anomalies IMPACT evolution under implementation
per statistics region and per land use (agriculture) calculate the agriculture areas affected by different anomalies classes along the season (here compared to mean)
For ONE date (ex. 20130911)
For the season (ex.20130501 to 20130911)
km2
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Conclusion
• Copernicus Global Land service is operational – Since 2013 … EC budget available till at least 2020
– Sustainable ‘daily’ delivery of NRT global products at ‘1km’
• 13 global bio-geophysical variables
• Linked to consistent time series
• Continuous quality monitoring
• Continuous evolution – In cooperation with FP7/H2020 projects
– Introduce back-up sensor
• Based METOP-AVHRR (sustain deliveries)
– Increase Spatial resolution 1km -> 300m
• 2014: vegetation variables over Europe
• 2015: more variables over Globe
– Exploit new capabilities from sensors
• 2015 (tbc) SWI@1km: Metop ASCAT + Sentinel-1
• 2016(tbc): add Sentinel-3 (1km / 300m), +PROBA-V -> S3A+B
• (tbc): Daily Global at 100m
– Add new products
• E.g. Phenology, Snow, Water Level, Vegetation Counter, ….
– Add hot-spot monitoring
• Sentinel-2 based, e.g. 30m FAPAR
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Coordinator: Bruno Smets – VITO [email protected]
S&T contact: Roselyne Lacaze – HYGEOS [email protected]
Website: http://land.copernicus.eu/global
Helpdesk: [email protected]
Contract Management: Michael Cherlet – JRC [email protected]
Global Land consortium
Associates
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Contact
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Interesting online applications
Time series viewer (VITO) • Visualisation of Copernicus NDVI, fAPAR & CHIRPS rainfall data • Prototype online: http://tsviewer.vito-eodata.be/
Agricultural Stress Index System (VITO/FAO) • Added value products derived from METOP NDVI/BT4 imagery & ECMWF/FEWS NET RFE rainfall data • Maps & graphs online at: http://www.fao.org/giews/earthobservation/
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Copernicus Global Land Service 31
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Copernicus Global Land Service 32
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Copernicus Global Land Service 33
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Copernicus Global Land Service 34
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333 meter PROBA-V image Budapest region
Copernicus Global Land Service 35
330 meter PROBA-V RGB image – Budapest region S1 – 23th of May 2014