Assertion: glacier's balance | /r/HasProperty | the time
Facets:
Source sentences:
text: The net balance is the average mass balance of the glacier from data collected over a glaciological year, the time between the end of the summer ablation season from one year to the next.
text: The net balance is the average mass balance over the entire glacier for one glaciological year, the time between the end of the summer ablation season from one year to the next.