VAP : Merged Sounding (MERGESONDE)

Instrument Categories
Atmospheric Profiling

Plot for Merged Sounding VAP

The Merged-Sounding VAP uses a combination of observations from radiosonde soundings, microwave radiometers, surface meteorological instruments, and European Centre for Medium Range Weather Forecasts (ECMWF) model output. Sophisticated scaling/interpolation/smoothing techniques are employed to define profiles of the atmospheric thermodynamic state at 1-minute intervals and at 266 altitude levels.

For more details, read the Merged Sounding Value-Added Product technical report.

Output Products

  • mergesonde1mace : Merged Sounding profiles derived with first Mace algorithm
  • mergesonde2mace : Merged Sounding profiles derived with second Mace algorithm

Primary Measurements

The following measurements are those considered scientifically relevant.


North Slope Alaska
NSAC1 Browse DataCentral Facility, Barrow AK
Southern Great Plains
SGPC1 Browse DataCentral Facility, Lamont, OK
Tropical Western Pacific
TWPC1 Browse DataCentral Facility, Manus I., PNG
TWPC2 Browse DataCentral Facility, Nauru Island
TWPC3 Browse DataCentral Facility, Darwin, Australia
ARM Mobile Facility
FKBM1 Browse DataBlack Forest, Germany
GANM1 Browse DataGan Airport, Gan Island, Maldives
GRWM1 Browse DataGraciosa Island, Azores, Portugal
HFEM1 Browse DataShouxian, Anhui, China
NIMM1 Browse DataNiamey, Niger
PYEM1 Browse DataPoint Reyes, CA


David Troyan
(631) 344-8245

Michael Jensen
(631) 344-7021