Conveners
Technical Session on Homogenization Algorithms
- Eric Pottiaux (Royal Observatory of Belgium (ROB))
- Roeland Van Malderen (Royal Meteorological Institute of Belgium)
Description
This session is dedicated to the description of homogenisation algorithms. Each participant who can give details about the use of such algorithms are invited to contribute to this session.
Michal Elias
(Geodetic Observatory Pecny, Czech Republic)
26/04/2016, 14:25
Technical Session on Homogenization Algorithms
Oral Presentation
Unexpected changes in the time-series are caused by several (usually non-climatic) factors. We applied statistical approach to analyze change-point detection. The method is based on a second correlated series that can be relied on to be correct. In the presented work we also describe the critical values calculation that was used. Beside the main presented method we also applied other technique...
Mr
Peep Miidla
(University of Tartu, Estonia)
26/04/2016, 14:45
Technical Session on Homogenization Algorithms
Oral Presentation
During this Academic Year, I studied the approach of Singular Spectral Analysis (SSA). It seems interesting and useful in several applications, included processing of atmospheric data with homogenization purposes. The main idea is to fit original data with SSA and then to compare the approaches of change point detection for original and reconstructed data.
Another approach for change point...
Dr
Olivier Bock
(IGN)
26/04/2016, 15:05
Oral Presentation
Dr
Roeland Van Malderen
(Royal Meteorological Institute of Belgium)
26/04/2016, 15:25
Technical Session on Homogenization Algorithms
Oral Presentation
We present three different tests, based on non-parametric techniques, for the objective identification of discontinuities in the mean (or median) of time series. These change-point tests are able to identify multiple discontinuities and requires no 'metadata' or comparison with neighbouring stations or reference data. These tests are based on (the sum of) the ranks of the values in the...
