Environmental Data Coding Specifcation        ISO IEC LogosRight Title Graphic
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Status: STD 2005/06/07
Code: 112

Concept definition: Either the <<HEIGHT_AGL>> of the lowest <CLOUD> or obscuring phenomena layer aloft that covers half or more of the sky and is predominantly opaque or the vertical <<VISIBILITY_DISTANCE>> into a surface-based obscuration; atmosphere ceiling.
Attribute value type: REAL
Unit equivalence class label: LENGTH
Reference type: IR
Reference: [WMO182, C0280, "ceiling"]
Supplemental references:  

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