noaa-ghcn-daily.queries.q01.xq Maven / Gradle / Ivy
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(: XQuery Filter Query :)
(: Find all reading for hurricane force wind warning or extreme wind warning. :)
(: The warnings occur when the wind speed (AWND) exceeds 110 mph (49.1744 :)
(: meters per second). (Wind value is in tenth of a meter per second) :)
let $collection := "/tmp/1.0_partition_ghcnd_all_xml/sensors"
for $r in collection($collection)/dataCollection/data
where $r/dataType eq "AWND" and xs:decimal(fn:data($r/value)) gt 491.744
return $r