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DATASET

Flood seasonality

Collection: CEMS-GloFAS-RA : GloFAS hydrological reanalysis 

Description

This dataset is derived from the state-of-the-art global daily streamflow reanalysis GloFAS Reanalysis v3.0 at 0.1° resolution. River floods occurred in all major world rivers in 1980-2018 are selected using a peak over threshold routine. The set of flood peaks is then analyzed to identify the seasonality of floods, including the start, peak and end of the flood events, assuming the 1 in 2 year event as flood threshold.

Contact

Email
lorenzo.alfieri (at) ec.europa.eu

Contributors

How to cite

Alfieri, Lorenzo (2020): Flood seasonality. European Commission, Joint Research Centre (JRC) [Dataset] PID: http://data.europa.eu/89h/b8136d6d-6088-4773-aca9-bc1995db3c68

Keywords

flood timing global hydrology seasonality of floods

Data access

Global statistics on flood seasonality
Use conditions
Creative Commons Attribution 4.0 International 
Access conditions
No limitations 
Download 

  • The dataset includes statistics on the seasonality of floods, as simulated by the GloFAS Reanalysis v3.0 for 1980-2018. Available data include: 1) monthly percent occurrence of the start, peak and end of flood events; 2) month with the largest percent occurrence of flood start, peak and end; 3) mean day of the year of the start, peak and end of floods. The dataset is complemented with raster maps of the flow drainage direction (ldd.nc) and of the upstream area of each grid cell (upArea.nc)

Spatial coverage

Type Value
GML 
<gml:Polygon xmlns:gml="http://www.opengis.net/gml">  <gml:outerBoundaryIs>    <gml:LinearRing>      <gml:coordinates>180,90 -180,90 -180,-60 180,-60 180,90</gml:coordinates>    </gml:LinearRing>  </gml:outerBoundaryIs></gml:Polygon>
GML 
<gml:Polygon xmlns:gml="http://www.opengis.net/gml/3.2">  <gml:exterior>    <gml:LinearRing>      <gml:posList>180 90 -180 90 -180 -60 180 -60 180 90</gml:posList>    </gml:LinearRing>  </gml:exterior></gml:Polygon>
WKT 
POLYGON ((180 90, -180 90, -180 -60, 180 -60, 180 90))

Temporal coverage

From date To date
1980-01-01 2018-12-31

Additional information

Published by
European Commission, Joint Research Centre
Created date
2020-02-13
Modified date
2021-03-24
Issued date
2020-02-13
Landing page
http://www.globalfloods.eu/ 
Language(s)
English
Data theme(s)
Environment
Update frequency
irregular
Identifier
http://data.europa.eu/89h/b8136d6d-6088-4773-aca9-bc1995db3c68
Popularity
16 May 2025: 1 visits