IMAGE: a multivariate multi-site stochastic weather generator for European weather and climate
File(s)image-multivariate-multi.pdf (2.13 MB)
Accepted version
Author(s)
Sparks, Nathan J
Hardwick, Stephen R
Schmid, Matthias
Toumi, Ralf
Type
Journal Article
Abstract
Capturing the spatial and temporal correlation of multiple variables in a weather generator is challenging. A new massively multi-site, multivariate daily stochastic weather generator called IMAGE is presented here. It models temperature and precipitation variables as latent Gaussian variables with temporal behaviour governed by an auto-regressive model whose residuals and parameters are correlated through resampling of principle component time series of empirical orthogonal function modes. A case study using European climate data demonstrates the model’s ability to reproduce extreme events of temperature and precipitation. The ability to capture the spatial and temporal extent of extremes using a modified Climate Extremes Index is demonstrated. Importantly, the model generates events covering not observed temporal and spatial scales giving new insights for risk management purposes.
Date Issued
2017-07-14
Date Acceptance
2017-07-01
Citation
Stochastic Environmental Research and Risk Assessment, 2017, 32 (3), pp.771-784
ISSN
1436-3240
Publisher
Springer Verlag
Start Page
771
End Page
784
Journal / Book Title
Stochastic Environmental Research and Risk Assessment
Volume
32
Issue
3
Copyright Statement
© The Author(s) 2017. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000425537800013&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Life Sciences & Biomedicine
Physical Sciences
Engineering, Environmental
Engineering, Civil
Environmental Sciences
Statistics & Probability
Water Resources
Engineering
Environmental Sciences & Ecology
Mathematics
Weather generator
Extreme events
Climate extremes index
Multivariate
Multi-site
EOF
DAILY PRECIPITATION
SOLAR-RADIATION
LOW-FREQUENCY
VARIABILITY
TRANSFORMATION
TEMPERATURE
SIMULATION
AFRICA
MODELS
SYSTEM
Publication Status
Published