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Learning verification

Learning verification#

Question 1#

What category of measurements do satellite observations belong to?

  • Active remote sensing

  • Passive remote sensing

  • both, active and passive

Question 2#

Please assign each measurement technique in the table below the parameters it measures:

  • Parameters:

    • Extinction coefficient

    • Angstrom Exponent

    • Particulate Matter 2.5 and Particulate Matter 10

    • Backscatter coefficient

    • Aerosol Optical Depth

Measurement technique

Parameter(s)

Measurement at the surface

Columnar remote sensing

Lidar remote sensing

Question 3#

How can dust particles with measurements from sun-photometers be identified? Through analysing the Angstrom Expnonent besides AOD. The AE can give you an indication of the particle size.

Question 4#

How is the relationship between Angstrom Exponent (AE) and Aerosol Optical Depth (AOD) in order to distinguish a dust event?

  • High AOD values and high AE values

  • Low AOD values and high AE values

  • High AOD values and AE values below 0.6

Question 5#

What temporal resolution does the AErosol RObotic NETwork offer?

  • sub-daily measurements

  • daily average

  • monthly average

Question 6#

What are the limit values for Particulate Matter 10 (PM10) for the protection of human health as defined in the European Union Air Quality Directive (2008/EC/50)?

  • the PM10 daily mean value man not exceed 5 µg/m3 more than 53 times in a year

  • the PM10 annual mean value man not exceed 400 µg/m3

  • the PM10 daily mean value may not exceed 50 µg/m3 more than 35 times in a year

  • the PM10 annual mean value may not exceed 40 µg/m3

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