A multipurpose flood inundation framework for Europe...for Large Rivers (GWD-LR) 4. Daily discharge...

A multipurpose flood inundation framework for Europe

Jeison Sosa, Jeff Neal, Paul Bates, Peter SalamonSchool of Geographical Sciences

University of Bristol

INTRODUCTION

25.06.18A multipurpose flood inundation framework for Europe 2

• Physical based

FLOOD MODELLING

• 2D/Floodplain hydraulics see Bates et al., (2010)

1. Digital Elevation Model (DEM)

• 1D/Channel hydraulics see Neal et al., (2012)

1. Channel widths

2. Channel depths

3. Bank heights

4. Inflow boundary conditions (discharge/water

level)

LISFLOOD-FP 2D INUNDATION MODEL

■ River cell● Center

3

LFPtoolsA software suite to easily and

quickly prepare large scale

LISFLOOD-FP models using

freely available data

25.06.18A multipurpose flood inundation framework for Europe

4

EFAS Discharge

mean daily data

(5 Km) riv. network

LISFLOOD-FP

(1 Km) riv. network

Perfect agreement

between river

networks!


5

24 years continuous simulation for the Po Basin 1990-2014:

Setup

1. MERIT-DEM (Terrain elevations)

2. HydroSHEDS hydrography at 1 Km

3. Widths from the Global Width Database

for Large Rivers (GWD-LR)

4. Daily discharge between 1994-2014,

JRC Ispra (EFAS System)

5. Sea level from Permanent Service for

Mean Sea Level (PSMSL)

Bank Height estimation


6

LISFLOOD-FP

(1 Km) riv. network

23-25 Sep 1993

5 fatalities

1500 persons

affected

LISFLOOD-FP flood outline Real flood outline


7

05-06 Nov 1994

68 fatalities

17300 persons

affected

LISFLOOD-FP

(1 Km) riv. network



8

07-10 Oct 1996

2 fatalities

2000 persons

affected

LISFLOOD-FP

(1 Km) riv. network



9

13-16 Oct 2000

38 fatalities

43000 persons affected

LISFLOOD-FP flood outline

Real flood outline


● We are validating the current modelling framework across European basins by

using real flood outlines (from local authorities) and satellite-based outlines

(from MODIS, Landsat) to generate an European flood inundation reanalysis

● This methodology can be applied elsewhere by coupling a different source of

forcing (e.g. National Water Model from NOAA)

● Once calibrated the modelling framework, different applications can be

achieved (e.g. Early warning system, climate change scenarios, flood risk

mapping)

10

Final thoughts...


contact details:

Jeison Sosa (@jsosatw)

School of Geographical Sciences

University of Bristol

github.com/jsosa

[email protected]

thank you

This project has received funding from the

European Union’s Horizon 2020 research and

innovation programme under the Marie

Skłodowska-Curie grant agreement No

676027.

A multipurpose flood inundation framework for Europe...for Large Rivers (GWD-LR) 4. Daily discharge...

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