Advanced search
1 file | 1.30 MB Add to list

A mathematical morphology approach for a qualitative exploration of drought events in space and time

Hilde Vernieuwe (UGent) , Bernard De Baets (UGent) and Niko Verhoest (UGent)
Author
Organization
Abstract
Drought events occur worldwide and possibly incur severe consequences. Trying to understand and characterize drought events is of considerable importance in order to improve the preparedness for coping with future events. In this paper, we present a methodology that allows for the delineation of drought events by exploiting their spatiotemporal nature. To that end, we apply operators borrowed from mathematical morphology to represent drought events as connected components in space and time. As an illustration, we identify drought events on the basis of a 35-year data set of daily soil moisture values covering mainland Australia. We then extract characteristics reflecting the affected area, duration and intensity from the proposed representation of a drought event in order to illustrate the impact of tuning parameters in the methodology presented. Yet, this paper we refrain from comparing with other drought delineation methods.
Keywords
Atmospheric Science, drought events, mathematical morphology, OWA-operator, spatio-temporal, OWA OPERATORS, EVAPORATION, SEVERITY

Downloads

  • (...).pdf
    • full text (Published version)
    • |
    • UGent only
    • |
    • PDF
    • |
    • 1.30 MB

Citation

Please use this url to cite or link to this publication:

MLA
Vernieuwe, Hilde, et al. “A Mathematical Morphology Approach for a Qualitative Exploration of Drought Events in Space and Time.” INTERNATIONAL JOURNAL OF CLIMATOLOGY, vol. 40, no. 1, 2020, pp. 530–43.
APA
Vernieuwe, H., De Baets, B., & Verhoest, N. (2020). A mathematical morphology approach for a qualitative exploration of drought events in space and time. INTERNATIONAL JOURNAL OF CLIMATOLOGY, 40(1), 530–543.
Chicago author-date
Vernieuwe, Hilde, Bernard De Baets, and Niko Verhoest. 2020. “A Mathematical Morphology Approach for a Qualitative Exploration of Drought Events in Space and Time.” INTERNATIONAL JOURNAL OF CLIMATOLOGY 40 (1): 530–43.
Chicago author-date (all authors)
Vernieuwe, Hilde, Bernard De Baets, and Niko Verhoest. 2020. “A Mathematical Morphology Approach for a Qualitative Exploration of Drought Events in Space and Time.” INTERNATIONAL JOURNAL OF CLIMATOLOGY 40 (1): 530–543.
Vancouver
1.
Vernieuwe H, De Baets B, Verhoest N. A mathematical morphology approach for a qualitative exploration of drought events in space and time. INTERNATIONAL JOURNAL OF CLIMATOLOGY. 2020;40(1):530–43.
IEEE
[1]
H. Vernieuwe, B. De Baets, and N. Verhoest, “A mathematical morphology approach for a qualitative exploration of drought events in space and time,” INTERNATIONAL JOURNAL OF CLIMATOLOGY, vol. 40, no. 1, pp. 530–543, 2020.
@article{8641663,
  abstract     = {Drought events occur worldwide and possibly incur severe consequences. Trying to understand and characterize drought events is of considerable importance in order to improve the preparedness for coping with future events. In this paper, we present a methodology that allows for the delineation of drought events by exploiting their spatiotemporal nature. To that end, we apply operators borrowed from mathematical morphology to represent drought events as connected components in space and time. As an illustration, we identify drought events on the basis of a 35-year data set of daily soil moisture values covering mainland Australia. We then extract characteristics reflecting the affected area, duration and intensity from the proposed representation of a drought event in order to illustrate the impact of tuning parameters in the methodology presented. Yet, this paper we refrain from comparing with other drought delineation methods.},
  author       = {Vernieuwe, Hilde and De Baets, Bernard and Verhoest, Niko},
  issn         = {0899-8418},
  journal      = {INTERNATIONAL JOURNAL OF CLIMATOLOGY},
  keywords     = {Atmospheric Science,drought events,mathematical morphology,OWA-operator,spatio-temporal,OWA OPERATORS,EVAPORATION,SEVERITY},
  language     = {eng},
  number       = {1},
  pages        = {530--543},
  title        = {A mathematical morphology approach for a qualitative exploration of drought events in space and time},
  url          = {http://dx.doi.org/10.1002/joc.6226},
  volume       = {40},
  year         = {2020},
}

Altmetric
View in Altmetric
Web of Science
Times cited: