BackForwardInstrument:  IPDA lidar 

Instrument details
Acronym IPDA lidar
Full name Integrated Path Differential-Absorption Lidar
Purpose Monitoring total-column CH4 with unprecedented accuracy by exploiting lidar
Short description Dirrerential absorption Lidar (DIAL) operating on the wavelenght of 1645.552 nm
Background New development
Scanning Technique Nadir viewing, continuous night and day
Resolution 50 km
Coverage / Cycle Global coverage in two weeks for cells of 70 km
Mass 32.5 kg Power 57 W Data Rate


Providing Agency DLR
Instrument Maturity Flown on an R&D satellite
Utilization Period: ≥2026 to ≥2029
Last update: 2021-06-23
Detailed characteristics
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
  • Active and radio-occultation sensor
  • Lidar (Doppler lidar, backscatter lidar, lidar Dial, lidar altimeter)
WIGOS Subcomponents
  • Subcomponent 2
  • Trace gas lidars
  • Lidar (DIAL - for trace gases)
Mission objectives
Primary mission objectives
  • CH4
Evaluation of Measurements

The following list indicates which measurements can typically be retrieved from this category of instrument. To see a full Gap Analysis by Variable, click on the respective variable.

Note: table can be sorted by clicking on the column headers
Note: * Primary mission objective.
VariableRelevance for measuring this variableOperational limitationsExplanation
CH4*1 - primaryCloud sensitive.. Along-track only.DIAL, specifically designed for CH4 profile