ELSS L15 - Monitoring Variation in the Water Cycle
- Created by: Hadley023
- Created on: 16-11-18 10:21
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- Monitoring methods - WATER CYCLE
- Arctic sea ice
- NASA's Earth Observing System (EOS). Satellites have monitored sea ice growth and retreat since 1978.
- Measures microwave energy radiated from Earth's surface.
- Comparison of time series images to show changes.
- Ice caps/glaciers
- As well as ground based estimates of mass balance, satellite tech is used e.g. ICESat-2.
- Measures surgace height of ice sheet and glaciers using laser technology.
- Shows extent and volume of ice and changes.
- Sea surface temperatures
- NOAA Satellites.
- Radiometers measure the wave band of radiation emitted from the ocean surface.
- Changes in global sea surface temperatures and areas of up-welling and down-welling.
- Water vapour
- NOAA polar orbiters.
- Measures cloud liquid water, total precipitable water etc.
- Long-term trends in cloud cover and water vapour in the atmosphere.
- Arctic sea ice
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