Speaker
Dr
Olivier Bock
(IGN)
Description
This presentation will give insights into the GPS and ERA-Interim IWV datasets provided to WG3 for the assessment of homogenization algorithms:
- Processing characteristics of IGS repro1 (and their limitations)
- Screening of the GPS ZTD data
- Conversion of GPS ZTD to IWV
- Computation of ERA-Interim IWV data at the location of GPS stations
- Statistical analysis of GPS minus ERA-Interim IWV differences
- Screening and validation and of the IWV differences (removal of sites with large representativeness differences)
The dataset is limited to 120 global sites with data available for the 1995-2010 period. The IWV data and differences are provided at daily and monthly time resolutions.
Primary author
Dr
Olivier Bock
(IGN)
