The DomeC-air 2013 airborne survey gathered calibration and validation data for two different Earth Explorer satellite missions: SMOS and GOCE.
Based at the isolated Concordia research station at Dome-C, the campaign involved flying a Basler-67 airplane over an area of 350 sq km.
The plane carried two key sensors: a radiometer used to record surface microwave emissions to verify SMOS data and a gravity meter.
Objectives for SMOS:
- To provide an independent characterisation of spatial covariance in v- and h-polarised brightness temperature (Tb), from local scales to 500 km.
- To establish whether measurements from the Domex-3 tower are representative of the larger-scale pattern.
- To characterise the environmental parameters influencing the spatial variability by comparing the airborne signal with independent sources of information, such as ground and SMOS data.
Objectives for GOCE
- To collect and document high-quality airborne gravity measurements to support independent GOCE product verification and potential improvements in gravity field models.
- To provide preliminary feedback on regional GOCE gravity-field solutions over the DOME-C survey area by comparing upwardly propagated airborne survey data and GOCE gradient
- To support parallel international initiatives by the geodetic community to produce a continent-wide reference gravity map, by filling measurement gaps with airborne gravity measurements.
DomeC-air at a glance
|Platform:||Aircraft, Polar 5 from AWI|
|Sensors:||L-Band radiometer, EMIRAD-2; Lacoste and Romberg air–sea gravimeter|
|Period:||17–22 January 2013|
|Status:||Completed; dataset available|
|Related missions:||SMOS; GOCE|
|Principal investigators:||Daniel Steinhagen (AWI); Niels Skou (DTU Space)|
|ESA coordinator:||Tânia Casal|