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wmo-im / iwxxm

XML schema and Schematron for aviation weather data exchange
https://old.wmo.int/wiswiki/tiki-index.php%3Fpage=TT-AvXML
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Remove attribute isNilReason in METAR/SPECI and TAF #138

Closed blchoy closed 5 years ago

blchoy commented 5 years ago

Simplify by removing attribute isNilReason in METAR/SPECI and TAF and revised associated schemas, schematron rules, examples and TAC-to-XML Guidance.