Recent developments at DMI

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Weather, climate and sea

• Recent developments at DMI
• Jacob Brock
• jbb_at_dmi.dk

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Recent developments at DMI

• An administrative change
• NinJo Operational introduction and continued
  development
• A new supercomputer
• Road Weather Information System
• Graphical Production System

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An administrative change

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• NinJo

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NinJo

• Deployed operationally Dec 2006
• 4 data types
• Observations
• Model data (HIRLAM)
• Radar
• Satellite
• In parallel with old system

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NinJo

• Lightning data, more models added
• Experiences (subjective)
• Younger users more likely to use NinJo
• Good super users gives better acceptance
• Dont try to limit the users

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AalOpr
SkpOpr
ResOpr
KarupOpr

LyvOpr
LyvTre
LyvDev
LyvTest
LyvLocal
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• New supercomputer

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Supercomputer

• Replacing the current NEC SX6 with a Cray in 4
  steps
• An XT4 as an early migration system in parallel
  with the NEC has been installed
• The XT4 takes over all applications and the NEC
  is closed down (scheduled 16 July)
• The NEC is disassembled and a Cray XT5 put in
  instead
• The XT5 to be turned on late october and take
  over all applications before the end of the year

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Cray XT Homogenous Architecture, scalable nodes
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Supercomputer

• Software
• - loginnodes have full SuSE Enterprise Linux
• - compute nodes have Compute Node Linux (speciel
  kernel and version of SuSE)
• - third party compilers, amongst others PGI,
  PathScale, Gnu GCC
• Cost
• - Cray XT4/5, 6 million
• - refurbishing of machine hall 450.000
• - other costs 65.000

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XT4 Odin
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• Road Weather
• Information System

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Road Weather Information System

• Once it was MFC C
• Then it became JavaScript
• But that was too slow so
• Now reimplemented in pure Java, using Java
  WebStart for updgrading

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The Challenge Provide complex meteorological
information in a non-complex format
The Construction Syndicate Road People Weather
People IT People
The Users Basicly everyone with interests in
slippery road conditions
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• The Users
• Basicly everyone with interests in slippery road
  conditions
• Road authorities, State, Region, Community,
  City.
• Entrepreneurs
• Airports
• Harbours
• Hospitals
• Other authorities

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Local map
Current condition
Forecast status 5 hours
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Long forecast
330 stations !
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Area forecast
Comments from meteorologist
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Radar images (Precipitation)
Rain Mix Snow FRZ precip
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Web-cams
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The system is continously improved

• Feed-back from users
• Performance continuously verified
• Day seminar every year
• Next season Exchanging data with Schleswig
  Holstein (Northern Germany)

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• Graphical Production
• System

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Graphical Production System

• So far based on a locally developed program
• Written in MFC C, no further development
• Can only generate pixel-based images
• Does not scale very well
• New product new extraction new graphics new
  dissemination

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Graphical Production System

• Requirements for new system
• Based on common standards
• Deliver both pixel and vector graphics
• Illustrator CS-series chosen
• Be scalable
• Common products for many customers

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Graphical Production System
Database
Production application
Data prod. Req.
Illustrator CS
Product
Post processing
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Graphical production
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Weather, climate and sea

• Recent developments at DMI
• Jacob Brock
• jbb_at_dmi.dk