meltwater
Học thuậtThân thiện
Definition
Noun: * Water that comes from melted snow or ice. This is the water produced when frozen precipitation (snow) or solid ice (from glaciers, icebergs, or ice sheets) undergoes melting, typically due to warmer temperatures.
Usage
- "Meltwater" is an uncountable noun. It refers to the water as a collective substance, not individual units.
- It is commonly used in environmental, geographical, and climate science contexts to describe a source of freshwater and a component of hydrological cycles.
- It often specifies the source of the melting ice or snow (e.g., glacial meltwater, snowmelt water).
Examples
- The river's flow increases dramatically in spring from the meltwater.
- Scientists are measuring the volume of meltwater flowing from the glacier.
- The valley's streams are fed by meltwater from the mountain snowpack.
Advanced Usage
- "Meltwater pulse": A period of rapid sea-level rise caused by a large, sudden influx of meltwater into the oceans from melting ice sheets.
- Evidence suggests a massive meltwater pulse occurred at the end of the last ice age.
- "Meltwater lake" or "supraglacial lake": A body of meltwater that forms on the surface of a glacier.
- The dark blue pools on the ice sheet are meltwater lakes.
Variants and Related Words
- Melt (verb): To change from a solid to a liquid state due to heat.
- Snowmelt (noun): Meltwater from snow, specifically. Often used interchangeably with "meltwater," though "snowmelt" specifies the source.
- Runoff (noun): Water, often including meltwater, that flows over the land surface.
Synonyms
- Thaw water: Water resulting from the thawing of ice or snow. (Less common)
- There is no perfect single-word synonym; "meltwater" is the precise technical term.
Related Phrases
- Glacial outflow: Water flowing from a glacier, which consists largely of meltwater.
- Source water: The origin point of a river or stream, which can be meltwater.
Noun
- melted snow or ice