the ica&d concept robert leander royal netherlands meteorological institute on behalf of the...
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The ICA&D conceptRobert Leander
Royal Netherlands Meteorological Institute
On behalf of the ECA&D project team
Aryan van Engelen
Else van den Besselaar
Albert Klein Tank
Gerard van der Schrier
http://eca.knmi.nl
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Contents
• Definition and purpose what is the ICA&D concept?
• Key componentsComponents and their connection
Implementation requirements
• Look and feel of the web-portalA swift browse through the ECA&D site
Let’s fantasize about the WACA&D site
Contents
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Contents
• Daily station data
• Quality controlled
• Regional
• Climate changes indices
Definition and purpose
Characteristics
International Climate
International Climate Assessment & Dataset
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ICA&D examplesECA&D, SACA&D, LACA&D….
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For example
???
ECA&D, SACA&D, LACA&D….
why not WACA&D ?
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ContentsKey components
MySQLdatabase
Apache
Webserver
“Fullcycle”:
•QC •Blending•Index calculation•Homogeneity tests•Trends, climatology,
extreme analysis
DevelopmentMaintenance
of data + metadataUpdate cycle
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ContentsKey components
MySQLdatabase
Apache
Webserver
MySQLdatabase
Apache
Webserver
“Fullcycle”:
•QC •Blending•Index calculation•Homogeneity tests•Trends, climatology,
extreme analysis
Development OperationalMaintenance
of data + metadataUpdate cycle
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• Updating series + metadata
• Quality control
• Blending stations
• Indices calculation
• Homogeneity tests
• Trend analysis
climatology, anomalies and extreme analysis ….
Update cycle
“Fullcycle”:
•QC •Blending•Index calculation•Homogeneity tests•Trends, climatology,
extreme analysis
Update cycle
Bash-scripting,
C/F77 routines
Manual intervention required
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• Updating raw series + metadata
• Quality control
• Blending stations
• Indices calculation
• Homogeneity tests
• Trend analysis
climatology, anomalies and extreme analysis ….
“Fullcycle”:
•QC •Blending•Index calculation•Homogeneity tests•Trends, climatology,
extreme analysis
Update cycle
Bash-scripting,
C/F77 routines
Fully automated process
Update cycle
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“Fullcycle”:
•QC
•Blending•Index calculation•Homogeneity tests•Trends, climatology,
extreme analysis
Update cycle
Blending
• Extending and completing a station series with data from nearby stations
• Stations within certain proximity and within a certain range of altitude are considered, depending on the element
SYNOP data is the least preferred source ….
only used if no suitable historical data available
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“Fullcycle”:
•QC •Blending
•Index calc.•Homogeneity•Trends, climatology,
extreme analysis
Update cycle
Index calculation
• ETCCDI indices (same as in RClimdex)
• Additional Impact-related indices
• Comfort indices like UTCI, Tourism index
• Specific “agricultural” indices Viticulture-related indices
• Hydrological indices like hydrologic intensity HY-INT (Giorgi)
And more …
new index definitions can smoothly be integrated into the system
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“Fullcycle”:
•QC •Blending•Index calculation
•Homogeneity •Trends, climatology,
extreme analysis
Update cycle
Homogeneity
• Four tests on some indices (RR, TGG, etc):
• Von Neumann Ratio Test
• Buishand Range Test
• Alexanderson SNHT
• Pettit Test} Identify break
• Classification of series: suspect 3 or more tests detect change doubtfull 2 tests detect break usefull not more than 1 test detects break
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“Fullcycle”:
•QC •Blending•Index calculation•Homogeneity
•Trends, ….
Update cycle
Various analyses
• For those series whose series are not suspect
• Climatology
• Anomalies
• Trends
• Returnvalues
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ContentsDatabase (devel)
MySQLdatabase
•Primary variables (daily resolution): tg,tx,tn,rr,hu,ss,sd,cc,ff,fx,dd
•Raw daily series•Blended daily series•QC results•Annual index series•Homogeneity test results•Station metadata•Analyses results
• Trends• Climatology• Extremes• …..
} Operational database
Up
dat
e cy
cle
Webserver (devel)
Newraw data
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ContentsWeb server(s)
Apache
Webserver
Apache
Webserver
Internal web-server External web-server
External DatabaseInternal Database
• PHP – based
• JPGRAPH for plotting
• MapServer / MapScript for mapping
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• Separate linux-baseddevelopment and operational system.
• Web-content generation real-time
• Apache 2.0, MySQL 5.0.45, PHP 5.1.6
• Mapserver 4.10.2 (maps) , Jpgraph (plots)
• C, shell scripting (update cycle)
• Fortran (some of the calculations, gridding)
Infrastructure
Summarizing:
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ECA Website walkthrough..
http://www.ecad.eu
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2009 ECA&D : data inventory
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2009 ECA&D : (Raw) Daily data
Raw and blended daily station data for the take…
…..but ONLY the PUBLIC data !! The participant decides
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2009 ECA&D walkthrough: Daily data
Raw and blended daily station data for the take…
…..but ONLY the PUBLIC data !! The participant decides
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2009 ECA&D : Extreme events
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2009 ECA&D : Extreme events
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2009 ECA&D : Indices
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2009 ECA&D : Timeseries plots
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2009 ECA&D : Index time series
May 20May 2010
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2009 ECA&D : Indices maps
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2009 ECA&D : Indices maps
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2009 ECA&D walkthrough
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2009 ECA&D : Index map: RR1
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2009 ECA&D : Index map: RH
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2009 ECA&D : Climatology RR1
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2009 ECA&D : Anomalies RR1
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2009 ECA&D : Trend RR1
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WACA&D : CWD Trend
http://82.157.123.58/rcc/utils/mapserver/trend.php
http://192.168.2.10/rcc/utils/mapserver/trend.php
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WACA&D : CWD TrendWACA&D : CWD Trend
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2009 WACA&D : CWD TrendWACA&D : CWD Trend
http://82.157.123.58/rcc/utils/mapserver/index-availability.php
http://192.168.2.10/rcc/utils/mapserver/index-availability.php
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ICA&D is useful in climate monitoring • Participants can profit from the analyses
• Still they have full control over data distribution
• The system is simpel in design and straightforward to maintain and extend
• We are there to share the software,our innovations and assist in the local setup
• The ICA&D concept is very well portable
Conclusion
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Meteorologist:What is the use of climate data ??”
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Meteorologist:What is the use of climate data ??”
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Thank You for your attention!
Merci beaucoup pour votre attention!