1. In situ (in position, in it's original place)
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2. Remote Sensing
instruments:
Two types:
- Passive: Instruments that measure radiation
emitted by other objects
- Active: Instruments that transmit radiation
and detects what is scattered back to the
receiver
- e.g., radars, profilers,
lidars
- Active instruments:
- require much more power
than passive instruments
- more susceptible to failure
" "
- designed to be more
sensitive " "
- Remote Sensors:
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