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Copula-based downscaling of spatial rainfall: a proof of concept

Martinus van den Berg UGent, Sander Vandenberghe UGent, Bernard De Baets UGent and Niko Verhoest UGent (2011) HYDROLOGY AND EARTH SYSTEM SCIENCES. 15(5). p.1445-1457
abstract
Fine-scale rainfall data is important for many hydrological applications. However, often the only data available is at a coarse scale. To bridge this gap in resolution, stochastic disaggregation methods can be used. Such methods generally assume that the distribution of the field is stationary, i.e. the distribution for the entire (fine-scale) field is the same as the distribution of a smaller region within the field. This assumption is generally incorrect and we provide a proof of concept of a method to estimate the distribution of a smaller region. In this method, a copula is used to construct a bivariate distribution describing the relation between the scales. This distribution is then used to estimate the distribution of the fine-scale rainfall within a single coarse-scale pixel, by conditioning on the coarse-scale rainfall depth.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
TIME-SERIES, MODEL, DISAGGREGATION, GENERATOR, CLIMATE, SPACE, MULTIFRACTALITY, PRECIPITATION, FREQUENCY, EXTREMES
journal title
HYDROLOGY AND EARTH SYSTEM SCIENCES
Hydrol. Earth Syst. Sci.
volume
15
issue
5
pages
1445 - 1457
Web of Science type
Article
Web of Science id
000291088600007
JCR category
WATER RESOURCES
JCR impact factor
3.148 (2011)
JCR rank
2/78 (2011)
JCR quartile
1 (2011)
ISSN
1027-5606
DOI
10.5194/hess-15-1445-2011
project
FWO08/ASP/166 "Copula-gebaseerde modellen voor ontwerpneerslag"
project
BOF 01J01809 "Ruimtelijke schalingsonzekerheid van hydrologische variabelen met behulp van afstandswaarnemingen"
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1339155
handle
http://hdl.handle.net/1854/LU-1339155
date created
2011-06-24 08:47:31
date last changed
2011-06-24 15:03:27
@article{1339155,
  abstract     = {Fine-scale rainfall data is important for many hydrological applications. However, often the only data available is at a coarse scale. To bridge this gap in resolution, stochastic disaggregation methods can be used. Such methods generally assume that the distribution of the field is stationary, i.e. the distribution for the entire (fine-scale) field is the same as the distribution of a smaller region within the field. This assumption is generally incorrect and we provide a proof of concept of a method to estimate the distribution of a smaller region. In this method, a copula is used to construct a bivariate distribution describing the relation between the scales. This distribution is then used to estimate the distribution of the fine-scale rainfall within a single coarse-scale pixel, by conditioning on the coarse-scale rainfall depth.},
  author       = {van den Berg, Martinus and Vandenberghe, Sander and De Baets, Bernard and Verhoest, Niko},
  issn         = {1027-5606},
  journal      = {HYDROLOGY AND EARTH SYSTEM SCIENCES},
  keyword      = {TIME-SERIES,MODEL,DISAGGREGATION,GENERATOR,CLIMATE,SPACE,MULTIFRACTALITY,PRECIPITATION,FREQUENCY,EXTREMES},
  language     = {eng},
  number       = {5},
  pages        = {1445--1457},
  title        = {Copula-based downscaling of spatial rainfall: a proof of concept},
  url          = {http://dx.doi.org/10.5194/hess-15-1445-2011},
  volume       = {15},
  year         = {2011},
}

Chicago
van den Berg, Martinus, Sander Vandenberghe, Bernard De Baets, and Niko Verhoest. 2011. “Copula-based Downscaling of Spatial Rainfall: a Proof of Concept.” Hydrology and Earth System Sciences 15 (5): 1445–1457.
APA
van den Berg, M., Vandenberghe, S., De Baets, B., & Verhoest, N. (2011). Copula-based downscaling of spatial rainfall: a proof of concept. HYDROLOGY AND EARTH SYSTEM SCIENCES, 15(5), 1445–1457.
Vancouver
1.
van den Berg M, Vandenberghe S, De Baets B, Verhoest N. Copula-based downscaling of spatial rainfall: a proof of concept. HYDROLOGY AND EARTH SYSTEM SCIENCES. 2011;15(5):1445–57.
MLA
van den Berg, Martinus, Sander Vandenberghe, Bernard De Baets, et al. “Copula-based Downscaling of Spatial Rainfall: a Proof of Concept.” HYDROLOGY AND EARTH SYSTEM SCIENCES 15.5 (2011): 1445–1457. Print.