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The use of WIS within YOPP YOPP Summit 14 July 2015 Phil Reid with thanks to Weiqing Qu and others
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The use of WIS within YOPP YOPP Summit 14 July 2015 Phil Reid with thanks to Weiqing Qu and others
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The use of WIS within YOPP Presentation outline Introduction to WIS – GTS Why you should be interested in WIS Getting your data into WIS Searching and downloading data Discussion questions
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WIS introduction – the GTS GTS: The Global Telecommunication System Is part of the World Weather Watch (WWW) Program which was designed to support global collaboration in operational weather forecasting and weather research Collects, exchanges, and distributes observational data and forecasting products
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WIS introduction – limitations of the GTS GTS is reliable, but: It is difficult to know what is in there It needs special connections It's difficult to set up routine delivery of data Almost impossible to set up one-time delivery of data Primarily designed to support the WWW Program It is difficult within the GTS to support more modern observations (eg satellite)
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WIS introduction – the power of the WIS WIS: WIS doesn't replace the GTS, it augments it and provides new functionality WIS is designed to support all WMO Programs – not just WWW Makes it easier to submit, find and fetch data Allows for the migration of new technologies (for example: climate services; different observing systems; and improved data discoveries)
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You and WIS – why you should be interested in WIS Why you should be interested in WIS: As a researcher/observer who wants their observations used in real time (for example, by NWS) As a researcher who wants to share their specialised data in real time As a researcher who wants access to near-real-time observations Avoid gathering data dust!
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Getting your data into WIS – know your instrument
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Know your instrument: What are instrument settings What settings for NWS acceptance (for example, "research" data versus "non-research" data) What are the limitations of the instrument in severe conditions Wind speed Harden, KN194-4 Radiosonde Cruise Report, 2009 Typically you would expect 15-20km
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Getting your data into WIS – know your data Know your data: What are the raw data – surely they would be better?? Harden, KN194-4 Radiosonde Cruise Report, 2009 Raw data – black EDT data - red Wavelength oscillation
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Getting your data into WIS – know your data format Know your data format: BUFR and CREX However WIS can take data in any format – for example NetCDF However, if you want your data going into operations it should be in BUFR, or secondary in CREX "BUFR should always be the first choice for the international exchange of observational data. CREX should be used only when BUFR cannot." Data format will almost certainly be dictated by the observational dataset and mechanism
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Getting your data into WIS – International Coordination Office Contact the PPP/YOPP ICO: Terms of reference, "…to ensure appropriate international coordination between the PPP participating Members" Register your interest and involvement in YOPP http://www.polarprediction.net/about-ppp/ico.html
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Getting your data into WIS – Metadata Metadata: A prerequisite for entering data into WIS is the descriptive metadata If your observations are "standard" then this will be a relatively easy step Otherwise you will need to give thought to this process See concluding remarks METADATA
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Getting your data into WIS – The GISC – Global Information System Centre Contact a GISC: Collects and synchronises global information and metadata Stores data for 24h for global exchange Publishes and distributes global information Ensures effective regional telecommunications See concluding remarks
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Searching and downloading data – OpenWIS What is OpenWIS?: OpenWIS is the public front-end to WIS Allows you to find and fetch data within WIS Perform one-off data request or subscribe Delivery to email or ftp site
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Searching and downloading data – OpenWIS What is OpenWIS?: OpenWIS is the public front-end to WIS
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Searching and downloading data – OpenWIS What is OpenWIS?: OpenWIS is the public front-end to WIS
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Searching and downloading data – OpenWIS What is OpenWIS?: OpenWIS is the public front-end to WIS
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Searching and downloading data – OpenWIS What is OpenWIS?: OpenWIS is the public front-end to WIS
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Concluding remarks – questions for group discussion Questions about the process: Metadata – include YOPP descriptor? GISC – one centre or "the local" or "the expert"? Handling unusual datasets – how many of these are we expecting? Bandwidth problems – specifically in the Southern Hemisphere?
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Adding research data – data included into NWS NWP Received observations Accepted observations 39591 36119
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