Assertion: glacier's accumulation zone | /r/HasAspect | gap
Facets:
value: in the dems
type: LOCATION
value: because of low radiometric contrast
type: CAUSE
value: because of shadows
type: CAUSE
value: because of cloud cover
type: CAUSE
Source sentences:
text: Because of cloud cover, shadows, and low radiometric contrast, some glacier accumulation zones had gaps in the DEMs and resulting thickness change maps.