Assertion: cirrus | /r/HasProperty | meteorology
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text: In meteorology|lang=en terms the difference between cirrus and cirrostratus is that cirrus is (meteorology) a principal high-level cloud type characterised by white, delicate filaments or wisps, of white (or mostly white) patches, or of narrow bands, found at an altitude of above 7000 metres while cirrostratus is (meteorology) a principal high-level cloud type appearing as a whitish veil, usually fibrous but sometimes smooth, which may totally cover the sky and which often produces halo phenomena, either partially or completely sometimes a banded aspect may appear, but the intervals between the bands are filled with thinner cloud veil the edge of the veil of cirrostratus may be straight and clean-cut, but more often it is irregular and fringed with cirrus some of the ice crystals that comprise the cloud are large enough to fall and thereby produce a fibrous aspect