The ICA&D concept
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Transcript of The ICA&D concept
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The ICA&D conceptRobert Leander
Royal Netherlands Meteorological Institute
On behalf of the ECA&D project teamAryan van Engelen
Else van den BesselaarAlbert 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 connectionImplementation requirements
• Look and feel of the web-portalA swift browse through the ECA&D siteLet’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 ClimateInternational 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
Upd
ate
cycl
e
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!