what is yr? -  · what is yr? yr is norwegian ... c t s a c t i v i t i e s directorate= steering...

What is Yr?● Yr is Norwegian for drizzle● www.yr.no, m.yr.no, Apps● Collaboration between NRK and Met Norway

– Presentation

– Scientific content and quality

● Based on an open data policy● Commercial free● Met Norway's main channel for publishing weather forecasts to

the public● The world's 5th biggest weather service (according to Alexa)● ~1,000,000 site specific location forecasts for Norway

– ~10,000,000 world wide

– location data base

●

Yr – a multimodal text

AROME-MetCoOp

ECMWF IFS

Forecast uncertainty- No forecast is complete without a forecast of forecast skill

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500,000

1,000,000

1,500,000

2,000,000

2,500,000

3,000,000

3,500,000Unique weekly users2007-2010

2 Million

June 2007 Dec 2010

How do we work - Organization of Yr at Met Norway

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Head of Yr

Projects

Activities

Directorate=Steering group

4 Million

2 Million

6 Million

8 Million

Number of weekly users – all platforms

Jan 2011 Jul 2014

Open data policy- requests per day to varsel.xml/forecast.xml

July 2014

Open data policy- request per day to api.met.no

90 Million

60 Million

2012 2013 2014

User confidence- all age groups

2007 2008 2009 2010 2011 2012 20130

5

10

15

20

25

30

35

40

45

50

YrNRK TVTV2Met Norwaystorm.no/TV2NRK Radio

Year

%

Forecast quality

Temperature

Precipitation

Good

2008 2011 2014

2008 2011

Orange plus green = fraction of good precipitation forecasts

Wind speed

Medium- to long-range forecastsSummer Precipitation – frequency of

events

Climatology Dry

Raw Yr

Dry

Light

Heavy

Forecast range (hours)

Forecast range (hours)

40%

80%

Communicating forecast skill

User interaction

● yr@met.no● @meteorologene● om.yr.no

Communication challenge

Reading of science 1,000 – 20,000 readers20,000 – 150,000 readers

Questions?

Weather on mobile platforms

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