Analysis of kriged rainfields using multifractals
File(s)
Accepted version
Author(s)
Wang, L
Onof, C
Ochoa, S
Simões, N
Type
Conference Paper
Abstract
Kriging interpolation is largely used in geostatistics to characterise the spatial structure of data and it is established in general based upon the stationary or intrinsic assumptions; however, the consequence of this second-order approximation is that the local singularities (or extremes) could be smoothed off. This drawback could be magnified as a finer-scale phenomenon is being investigated, such as urban rainfall. Unlike Kriging, the theory multifractals provides a more complete description of the structure of data by considering a range of orders of statistical moments. This work demonstrates the link between multifractal analysis and the Kriging interpolation and finds that Kriging uses only part of in-formation that is included in multifractals. This causes the loss of local singularity of Kriged rainfall field and could be improved by combining it with singularity analysis. A possible solution is proposed in this work and will be implement-ed and presented in the workshop.
Date Issued
2017-01-01
Date Acceptance
2012-12-06
Citation
9th International Workshop on Precipitation in Urban Areas: Urban Challenges in Rainfall Analysis, UrbanRain 2012, 2017, pp.138-142
ISBN
9783906031217
Publisher
ETH Zurich
Start Page
138
End Page
142
Journal / Book Title
9th International Workshop on Precipitation in Urban Areas: Urban Challenges in Rainfall Analysis, UrbanRain 2012
Copyright Statement
© 2017 The Author(s)
Source
9th International Workshop on Precipitation in Urban Areas: Urban Challenges in Rainfall Analysis, UrbanRain 2012
Publication Status
Published
Start Date
2012-12-06
Finish Date
2012-12-09
Coverage Spatial
St. Moritz, Switzerland