BackForwardInstrument:  DPC-2 

Instrument details
Acronym DPC-2
Full name Directional Polarization Camera - 2
Purpose To measure aerosol and cloud microphysical parameters and the Bidirectional Reflectance Distribution Function (BRDF)
Short description Updated version of DPC with higher spatial resolution with 8 VIS/NIR wavelengths, with 3 polarisations at 3 wavelengths; total 14 channels [see detailed characteristics below]. More details here: https://doi.org/10.1364/OE.405834
Background Designed after POLDER flown on PARASOL and in advance of 3MI to be flown on EPS-SG
Scanning Technique 1024 x 1024 CCD arrays, 2400 km swath, each earth’s spot viewed from up to 9 directions as the satellite moves
Resolution 3.5 km at the s.s.p.
Coverage / Cycle Near-global coverage every day in daylight
Mass Power Data Rate

 

Providing Agency CNSA
Instrument Maturity Flown on an R&D satellite
Utilization Period: 2022 to 2030
Last update: 2022-07-18
Detailed characteristics

Central wavelength

Bandwidth

No. of pol.

SNR at the expected input radiance

443 nm

20 nm

-

500

490 nm

20 nm

I/Q/U

500

565 nm

20 nm

-

500

670 nm

20 nm

I/Q/U

500

765 nm

40 nm

-

500

768 nm

20 nm

-

500

865 nm

40 nm

I/Q/U

500

910 nm

20 nm

-

500
Satellites this instrument is flying on

Note: a red tag indicates satellites no longer operational, a green tag indicates operational satellites, a blue tag indicates future satellites

Instrument classification
  • Earth observation instrument
  • Passive optical radiometer or spectrometer
  • Moderate resolution optical imager
WIGOS Subcomponents
  • Subcomponent 2
  • Multi-angle, multi-polarization radiometers
  • Multi-angle, multi-polarization radiometer
Mission objectives
Primary mission objectives
  • Aerosol Optical Depth
  • Aerosol column burden
  • Aerosol effective radius
  • Aerosol mass mixing ratio
  • Aerosol type
  • Aerosol volcanic ash
  • Aerosol volcanic ash Total Column
Evaluation of Measurements