ICAROHS

Future advanced muli-wavelength space-borne lidar feasability study/

The ESA-STSE study ICAROHS explored the potential improvements and benefits of novel multi-wavelength High Spectral Resolution Lidar (HSRL) technology combined with innovative retrieval methods for future satellite missions.

The main objectives of ICAROHS were:

  1. Delivery of quality-controlled and validated retrieval algorithms for primary geophysical products as backscatter and extinction profiles, lidar ratio profile, aerosol classification.
  2. Validated aerosol microphysical products inversion from spaceborne multi-λ HSRL, as effective radius, refractive index, aerosol layer structure and height.
  3. Recommendations for future single and multi-λ HSRL instruments which meet the accuracy requirements of current aerosol-climate interaction modelling.
  4. Creation of realistic simulated test scenes based on airborne HSRL & in-situ data using SAMUM 1 & 2, EUCAARI and volcanic ash observations.

The project concluded in 2011 and involved KNMI, DLR, and IFZ Liepzig)

Fig1
Observed (upper sub-panel) and forward modeled (lower sub-panel) Co-Polar Mie signals for a continental European observation containing industrial pollution, dust and ice clouds (13 May 2008).