Homogenisation of Radiosonde Observations

Comprehensive homogenisation of radiosonde temperature, wind and humidity observations all over the globe and as far back as possible (1930s in some cases). This work is an important component of global reanalysis efforts that aim to provide temporally homogeneous gridded fields of atmospheric parameters back to the early 20th century. It is conducted  in cooperation with ECMWF, ETH Zurich UK MetOffice and other international institutions. The effort has been funded first by the Austrian Science Funds (FWF), then from EU 7th Framework Programme funds, and since then via Copernicus Climate Change Service (C3S) contracts. 

Homogeneity adjustments from this efforts have been used for the production of ERA-Interim, ERA5, ERA6, JRA55 and JRA3Q reanalyses. 

A Comprehensive Upper-air Observation Network (CUON) dataset is available via the Copernicus Atmospheric Data Store (CDS)

Researcher:

• Leopold Haimberger
• Ulrich Voggenberger

Projects:

• Copernicus

Publications:  Please see the research group's publication page 

Pictures: Temperature trends at radiosonde stations in K / 10a at 300 hPa in the period 1954-1974. Only stations with more than 19 years data in this period are considered.