DENDROGEOMORPHOLOGICAL RESEARCH APPLIED TO FLOOD HAZARD ANALYSIS IN THE ‘CALDERA DE TABURIENTE’ NATIONAL

PARK (LA PALMA, CANARY ISLANDS, SPAIN)

A. Díez-HerreroM. GénovaP. MayerJ.A. Ballesteros-CánovasJ.M. RubialesM A SazM.A. SazL. BecerrilM. HernándezI. Gutiérrez-Pérez

dJ.M. BodoqueV. Ruiz-Villanueva

INDEX

1. The ‘Caldera de Taburiente’ National Park2. Methodology2. Methodology3. Preliminary Results4 F4. Future prospects5. Conclusions

28th IAG International Conference on Geomorphology- August 27th to 31st, 2013- Paris (France)

INDEX

1. The ‘Caldera de Taburiente’ National Park2. Methodology2. Methodology3. Preliminary Results4 F4. Future prospects5. Conclusions

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The ‘Caldera de Taburiente’ National Park

CANARY ISLANDS

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The ‘Caldera de Taburiente’ National Park

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The ‘Caldera de Taburiente’ National Park

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The ‘Caldera de Taburiente’ National Park

The flood leaves three dead

Tragedy in La CalderaTragedy in La Caldera

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The ‘Caldera de Taburiente’ National Park

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The ‘Caldera de Taburiente’ National Park

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The ‘Caldera de Taburiente’ National Park

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© Angel Palomares (2011)

INDEX

1. The ‘Caldera de Taburiente’ National Park2. Methodology2. Methodology3. Preliminary Results4 F4. Future prospects5. Conclusions

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Methodology

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Díez-Herrero et al. (2009)

Methodology

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Methodology

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Díez-Herrero et al. (2009)

Methodology

Ruiz-Villanueva et al. (2011)

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Díez-Herrero et al. (2007)

Methodology

Process Event Response

Boulder wound

(Shroder, 1978)

? unknown

Real flood stage

Minimum flood stage

PSI

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Methodology

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Methodology

Cumbrecita-Camping trail(1 200 m nm)

Dendrogeomorphological evidence

(1.200 msnm)

Left margin of the Verduras de Alfonso gorge

Ri ht i f th T b i t

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© Angel Palomares (2011) Right margin of the Taburiente gorge

Methodology

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Methodology

VERDURAS DE ALFONSOCANTOS DE TURUGUMAY

TABURIENTE

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Methodology

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Methodology

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Methodology

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Methodology

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Methodology

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Methodology

201020001990198019701960195019401930192019101900189018801870660640620600580560

660640620600580560560

540520500480460440

560540520500480460440

420400380360340320300

420400380360340320300300

280260240220200180

300280260240220200180180

160140120100

8060

1801601401201008060

4020

0-20-40-60-80

40200-20-40-60-80

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201020001990198019701960195019401930192019101900189018801870

80-100

80-100

Methodology

20102000199019801970196019501940193019201910190018901880640620600580560540520500480

640620600580560540520500480

460440420400380360340320300280

460440420400380360340320300280

1962

Reaction tissue/ Growth releasing

28026024022020018016014012010080

2802602402202001801601401201008080

6040200

-20-40-60-80

-100

806040200-20-40-60-80-100

20102000199019801970196019501940193019201910190018901880

201020052000199519901985198019751970

900850800750700650600

900850800750700650600

1993 Decay60055050045040035030025020015010050

0

600550500450400350300250200150100500

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201020052000199519901985198019751970

0-50

-100-150

0-50-100-150

Methodology

Contorno de CORRELATION OF SERIES BYScar la herida

CORRELATION OF SERIES BY SEGMENTS:Seq Series Time_span 1950 1975

1999 2024

2005 contour

R di

---- ---- ---- ---- ---- ---- ---- ---- ---- ---- -1 20me 1963 2005 .382 21me 1982 2005 .723 22me 1967 2010 .61

1997

Radios medidos

3 22me 1967 2010 .614 23me 1971 2010 .615 24me 1962 2008 .486 25me 1973 2007 .63

41 1984 2008 8

1982

7 41me 1984 2008 .588 42me 1958 2012 .579 43me 1961 2010 .42

Av segment correlation .53 .65Av segment correlation .53 .65

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Methodology

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Methodology

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Methodology

Taburiente1 Plan: Plan 10 Legend

WS PF 1Bedrock

Ground

Bank Sta

Pines and boulders

Gravel bars

BedrockPines and boulders

Gravel barsBoulder bars

Bedrock

Pines andBoulder bars boulders

der

bars

der

bars

vel b

ars

Bedr

ock

ines

and

ould

ers

Boul

d

Boul

d

Gra

v Pi bo

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INDEX

1. The ‘Caldera de Taburiente’ National Park2. Methodology2. Methodology3. Preliminary Results4 F4. Future prospects5. Conclusions

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Preliminary results

12 100S C O SGROWTH

1080

90HERIDAS LIBERACIONES

1962 (50%)SCARS

GROWTH RELEASING

18 yr

17 yr13 yr

8

idas

60

70

cion

es1979 (30%)SCAR

S

RELE

ASIN

G

4

6

Nº h

eri

30

40

50

% li

bera

c

NU

MBE

R O

F

OF

GRO

WTH

R

16 yr15 yr13 yr

2

10

20

30

1997 (10%)

N

NU

MBE

R O

01900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010

0

10

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Preliminary results

YEARTREE

SCARSMETEO DATA

OTHER SOURCES

1962 X F X

C106U (1978‐2010)Precipitación (mm)Fecha Precipitación (mm)Fecha

YEARTREE

SCARS

1962 X

YEARTREE

SCARSMETEO DATA

1962 X F

1979 X X,X

1980 X

1981 X, F 243,925/01/1980

18009/10/1979

21023/01/1979

243,925/01/1980

18009/10/1979

21023/01/19791979 X

1980

1981

1979 X X,X

1980 X

1981 X, F1981 X, F

1986 X

1987 X, X24023/01/1987

21727/02/1986

163,915/02/1981

24023/01/1987

21727/02/1986

163,915/02/1981

1981

1986

1987

1981 X, F

1986 X

1987 X, X

1989 X

1991 X X

1993 X17329/12/1989

16204/11/1987

24023/01/1987

17329/12/1989

16204/11/1987

24023/01/19871989

1991 X

1993 X

1989 X

1991 X X

1993 X

1997 X

2001 X X, F X

2003 X F27919/03/2007

19813/03/2001

20804/12/1991

27919/03/2007

19813/03/2001

20804/12/19911997 X

2001 X

2003 X

1997 X

2001 X X, F

2003 X F

23-24/12/2009

2003 X F

2007 X X

2009 X X24115/02/2010

22623/12/2009

24115/02/2010

22623/12/20092003 X

2007 X

2009

2003 X F

2007 X X

2009 X

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2010 X X20102010 X

Preliminary results

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Preliminary results

832

Taburiente1 Plan: Plan 10

Legend.04 .045 .04

828

830

EG PF 1

Crit PF 1

WS PF 1

Ground

Bank Sta

824

826

Ele

vatio

n (m

)

822

824

0 20 40 60 80 100 120 140820

Station (m)

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Preliminary results

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Preliminary results

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Preliminary results

3 people diedin 2001

New hiking trail2013

Old hiki t ilOld hiking trail

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INDEX

1. The ‘Caldera de Taburiente’ National Park2. Methodology2. Methodology3. Preliminary Results4 F4. Future prospects5. Conclusions

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Future prospects

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Future prospects

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Future prospects

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INDEX

1. The ‘Caldera de Taburiente’ National Park2. Methodology2. Methodology3. Preliminary Results4 F4. Future prospects5. Conclusions

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Conclusions

1. Dendrogeomorphological methods are showing to g p g gbe an alternative and complement to traditional hydrological-hydraulic methods in places where there are no gauging data and rainfall recordsthere are no gauging data and rainfall records statistically reliable enough.

2. In the Taburiente National Park this methods are allowing to reconstruct past flood dates, their frequency and infer the orders of magnitude offrequency and infer the orders of magnitude of the flood discharges, which can be useful in the prevention and management of flood risk.

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To be informed on the project….

Project web page: www.idea-gesppnn.es

These studies are funded by the reseserch project IDEA-GesPPNN, from the Spanish Bureau y p j , pof National Parks (OAPN 163/2010; Ministery of Agriculture, Feed and Environment). We would like to thank their collaboration to all staff of the National Park, from its Director (Mr. Angel Palomares) to the guides, rangers and workers of Tragsa.

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