Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.6226 |
A mathematical morphology approach for a qualitative exploration of drought events in space and time | |
Vernieuwe, Hilde1; De Baets, Bernard1; Verhoest, Niko E. C.2 | |
2019-08-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Belgium |
英文摘要 | 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. |
英文关键词 | drought events mathematical morphology OWA-operator spatio-temporal |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000480188300001 |
WOS关键词 | OWA OPERATORS ; EVAPORATION ; SEVERITY |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/185703 |
专题 | 气候变化 |
作者单位 | 1.Univ Ghent, Dept Data Anal & Math Modelling, KERMIT, Ghent, Belgium; 2.Univ Ghent, Lab Hydrol & Water Management, Coupure Links 653, B-9000 Ghent, Belgium |
推荐引用方式 GB/T 7714 | Vernieuwe, Hilde,De Baets, Bernard,Verhoest, Niko E. C.. A mathematical morphology approach for a qualitative exploration of drought events in space and time[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019. |
APA | Vernieuwe, Hilde,De Baets, Bernard,&Verhoest, Niko E. C..(2019).A mathematical morphology approach for a qualitative exploration of drought events in space and time.INTERNATIONAL JOURNAL OF CLIMATOLOGY. |
MLA | Vernieuwe, Hilde,et al."A mathematical morphology approach for a qualitative exploration of drought events in space and time".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2019). |
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