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5/15/2014 Unesco Chair Water Resources Management and Culture Fernando Nardi, University for Foreigners of Perugia, Italy Natural hazard and territorial planning: Using digital topographic data Using digital topographic data to capture the

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Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Natural hazard and territorial planning: Using digital topographic data to capture the flood footprint Using digital topographic data to capture the flood footprint

Geodisaster S

es s ion @ 2014 Geos patial World F

Fernando Nardi

University for Foreigners of Perugia

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

Geodisaster S

es s ion @ 2014 Geos patial World F

Geneve, Switzerland - May 9th, 2014

Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Earth landforms and physical processes

Outlines

Digital global earth data
GIS terrain analysis for capturing the flood footprint:

introducing a DEM-based floodplain delineation model

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

model

Flood risk and territorial planning: Standard flood

maps vs floodplains

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Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Earth physical processes modelling issues:

Scenarios/Frequency

Earth landforms and physical processes

Scenarios/Frequency
Data accuracy
Statistics/Deterministic
Validation
…

UNCERTAINTY

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014 http://www.agci.org/classroom/images/earth_system_diagram_big.jpg

UNCERTAINTY

Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Weathering Erosion

Earth landforms and physical processes

Erosion Deposition Landslide Fluvial processes

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

LANDSCAPE EVOLUTION

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Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Digital Elevation Models

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

http://www2.jpl.nasa.gov/srtm/

Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Digital Earth

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

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Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

High resolution DEMs

Aerial and satellite remote sensing

(LIDAR, UAV - SRTM, ASTER)

Field surveys

(GPS, Laser scanner, UAV)

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

Sensing the Earth

Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Observing and interpreting urban and urban and natural features…

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

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Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

…and processes

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014 Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Floodplains are critical landscape

Floodplains

Rio Salado floodplain, USA

Floodplains are critical landscape features that are highly distinguished from neighboring uplands in terms of their hydrologic, geomorphologic, biogeochemical and ecological processes

Tiber floodplain, Italy

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

Parana floodplain, Brazil

Nardi, F., E. R. Vivoni, and S . Grimaldi (2006), Investigating a floodplain scaling relation using a hydrogeomorphic delineation method, Water Resources Research, 42

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Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Floodplains

Floodplain topography intrinsically contains information

Water-driven erosion and deposition processes shape river valleys

intrinsically contains information

n the hydrogeomorphic

signature of past erosional and depositional processes. Digital Elevation Models (DEMs) contains significant information

n the floodplain-related

DEM implicitly contains the floodplain information

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014 Nardi, F., E. R. Vivoni, and S . Grimaldi (2006), Investigating a floodplain scaling relation using a hydrogeomorphic delineation method, Water Resources Research, 42

n the floodplain-related

physical phenomena

Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Terrain Analysis

Analyzing terrain surface properties (elevation, land use,..) for deriving hydrogeomorpic use,..) for deriving hydrogeomorpic parameters: Direct: slope, curvature, aspect Indirect: flow direction, drainage area Features: stream network, drainage basin, floodplain, hillslope

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

stream network, drainage basin, floodplain, hillslope

Processes:

deposition, erosion, land/water dynamics (i.e. landsliding/flooding)

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Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Terrain analysis applications

Water flows along

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

Water flows along the steepest slope

Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Terrain analysis applications

Filling sinks Flow direction

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

Flow direction Contributing area Watershed delineation Stream Network

Hydrologic processing of DEMs for stream network extraction

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Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Hydrogeomorphic floodplain delineation

Inundation depth: h

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

Inundation depth: h Contributing area: A Leopold law scaling parameters: a, b

Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Hydrogeomorphic floodplain delineation

h = 7m

Water energy of cell flow that goes downhill

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

h = 7m

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Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Po river basin (North Italy)

Area 75,000 km2 Channel flow depths: up to 44 m Stream network source

contrib. area: 500 km2
contrib. area: 500 km2

Floodplain area: 5178 km2 to 14976 km2

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014 Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

500 yrs Flood/ Inundation maps

> 10,300 km2

Lake areas: 1000 km2

Po river basin (North Italy)

Lake areas: 1000 km Floodplain area: 5178 km2 to 14976 km2

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

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Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Tiber river basin (Central Italy)

Area 17,500 km2 Channel flow depths: up to 25 m Stream network source Stream network source

contrib. area: 500 km2

Floodplain area: 760 km2 to 1455 km2 200 yrs flood maps: 436 km2

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014 Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

The Tiber river case study

How do the hydrogeomorphic hydrogeomorphic floodplain behaves as respect to standard flood/inundation maps?

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

Nardi F ., Biscarini C ., Di Francesco S ., Manciola P ., Ubertini L., Irrigation and Drainage, 2013

maps?

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Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

The Tiber river case study

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

Nardi F., Biscarini C

., Di F rancesco S ., Manciola

P., Ubertini L., Irrigation and Drainage, 2013 Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Tiber river basin (Central Italy)

City of Rome

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

City of Rome

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Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Tiber river basin

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014 Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Tiber river basin

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

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Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Tiber river basin

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014 Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Hydrologic-Hydraulic flood maps

Tiber river basin

HYDROGEOMORPHIC FLOODPLAIN

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

HYDROGEOMORPHIC FLOODPLAIN

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Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Territorial planning for minor river basins

Lazio region - City of Rome Flood risk management plan

Simplified analyses:

Flood risk management plan

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

Simplified analyses:

flood prone area delineation
River-road intersections
Hydrologic pathways

Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

FLOOD VS FLOODPLAIN mapping

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

City of Rome – Flood risk management plan

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Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

River-Road intersections

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014 Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Large scale hydrologic analyses

Information for territorial planning:

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

planning:

Floodplain
critical river nodes
Hydrologic pathways

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Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Discussion

Capturing river basin physical processes and features using digital

topography (DEM) topography (DEM)

Understanding flood risk by evaluating the geomorphology of

floodplains and critical human-made features

Integrated flood risk management and territorial planning by

considering the hydrogeomorphic flood footprint rather than event-

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

considering the hydrogeomorphic flood footprint rather than event- base standard flood mapping

Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Contact Info

Email Email fernando.nardi@unistrapg.it Unesco Chair in Water Resources Management and Culture http://www.unescochair.it/

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014

http://www.unescochair.it/

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Unesco Chair “Water Resources Management and Culture” Fernando Nardi, University for Foreigners of Perugia, Italy

Contact Info

fernando.nardi@unistrapg.it @fnardi

Geospatial World Forum Geneva, Switzerland – May 5-9, 2014