Norwegian Meteorological Institute met.no Recent development at met.no EGOWS 2008, Ljubljana Michael...
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Transcript of Norwegian Meteorological Institute met.no Recent development at met.no EGOWS 2008, Ljubljana Michael...
![Page 1: Norwegian Meteorological Institute met.no Recent development at met.no EGOWS 2008, Ljubljana Michael O. Akinde Martin L. Sætra Bjørn K. Larsen.](https://reader035.fdocuments.us/reader035/viewer/2022062222/56649dd45503460f94acc06d/html5/thumbnails/1.jpg)
Norwegian Meteorological Institute met.no
Recent development at met.no
EGOWS 2008, LjubljanaMichael O. Akinde
Martin L. Sætra
Bjørn K. Larsen
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Norwegian Meteorological Institute met.no
Overview
• Development environment• Application overview• Recent development
– Weather and water database– Distributed Field Editing– yr.no website
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Norwegian Meteorological Institute met.no
Development environment
• Linux (Fedora Core 5, Debian sarge)– Ubuntu later this year
• C++ (with C++,C and fortran libraries)• Qt (free for OpenSource development)• OpenGL (Mesa3D)• Free/OpenSource libraries and databases• Doxygen source code documentation• Autotools as build system
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Norwegian Meteorological Institute met.no
Production and monitoringmet.no’s integrated system
• Diana Displays fields,obs,image(radar,sat), editing fields and objects and a batch version for production
• Tseries Displays meteograms, EPSograms ++ batch version for production
• Qed Point forecasting, editing symbols and time series
• Modfly Aviation forecasting, TAF editor and monitoring
• VePSVerification presentation system • Ted Forecast text editor and
organizer
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Norwegian Meteorological Institute met.no
Production and monitoring Sketch of the present integrated system
2D map
Taf monitoring
Time series editing Text editing
Point verification
Time series
Diana
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Norwegian Meteorological Institute met.no
Diana 1/2
• A meteorological visualization and production software
• Developed at the Norwegian Meteorological Institute, met.no
• Used operationally since 2001• Also used by researchers• Released as open source (GPL 2
license) May 2006• Available from svn.met.no
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Norwegian Meteorological Institute met.no
Diana 2/2• Tailored for operational use in a
forecasting environment• Small development team in close
cooperation with forecasters• Fast development cycle - monthly
updates• Worldwide interest as a result of the
open source policy• Working to make it more attractive
for others• Contact e-mail is [email protected]
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Norwegian Meteorological Institute met.no
New features in Diana
• NetCDF– Not well tested
• Bufr observations– WMO templates
• GRIB through WDB• Upgraded to Qt 4 • Export to MPEG2 animation• Debian package and autotools
– Not finished
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Norwegian Meteorological Institute met.no
WDB – Weather and Water database
• Decode and store meteorological and oceanographic fields
• Flexible retrieval interface• WDB is developed by met.no and
SMHI• Open source system
– based on the PostgreSQL relational database
• More informations and downloads– http://wdb.met.no/
• Presentation about this project tomorrow, by Michael Akinde
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Norwegian Meteorological Institute met.no
Issues with the current production system at met.no
• Inconsistency between different products
• Gap between regions• Lack of communication between
regions• Forecasters modify the fields, but we
do not know what, where, why...
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Norwegian Meteorological Institute met.no
Solution
• One gridded database as the basis of all products• A group of forecasters will select one model to be
the basis for the current session• The forecasters from all regions will edit the
selected model in a seamless and concurrent manner– Forecasters in all regions will work at the same
data – Changes done in other regions will instantly
appear– Forecasters can easily see what is modified, by
who, why...– Messaging service with instant warnings from
system and chatting with other users
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Norwegian Meteorological Institute met.no
System overview
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Norwegian Meteorological Institute met.no
Forecasters view 1/4
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Norwegian Meteorological Institute met.no
Forecasters view 2/4
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Norwegian Meteorological Institute met.no
Forecasters view 3/4
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Norwegian Meteorological Institute met.no
Forecasters view 4/4
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Norwegian Meteorological Institute met.no
Field Edit Objects
• An algorithm processed on the gridded data inside a geographical area
• One object defines a specific change in:– One session– One field– One parameter– One time (hour)
• Traceable (who, where, when, why)• Reusable entities (algorithms, not
grid values)
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Norwegian Meteorological Institute met.no
Base Objects
• Defines the algorithm and GUI to adjust input parameters
• A set of base objects are maintained by a separate application– The forecasters toolbox for field editing– A script language has been developed to
define GUI and algorithms– Only a selection of forecasters
(administrators) will handle base objects
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Norwegian Meteorological Institute met.no
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Norwegian Meteorological Institute met.no
PODS – Object Distribution System
• Middleware for field editing• User management with different
roles• Enables diana-clients to view the
same edited field through distribution of editing objects
• Implemented using CORBA• Bidirectional communication
(callback), multi-threading, asynchronous calls...
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Norwegian Meteorological Institute met.no
PODS Design
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Norwegian Meteorological Institute met.no
website
• Weather service for the public (free access)
• Joint effort by met.no and NRK (Norwegian Broadcasting Corporation)
• Forecasts (10 days) and observations– Text, symbols and graphs– Advanced (WMS) map clients– Download as XML– Search by geographic location
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Norwegian Meteorological Institute met.no
unique users pr. week