floods in municipality of amadora emanuel crucho | geographic information division luís carvalho |...
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FLOODS IN MUNICIPALITY OF AMADORA
Emanuel Crucho | Geographic Information DivisionLuís Carvalho | Civil Protection Municipal Service
Universidade Nova de LisboaLisbon, January 21th | 2014
FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014
FLOODS IN MUNICIPALITY OF AMADORA
1. INDEX
1. FLOODS IN MUNICIPALITY OF AMADORA1.1. HYDROGRAPHIC NETWORK
1.2. HYDROGRAPHIC NETWORK SUSCEPTIBILITY1.3. MORPHOLOGIC CAUSES OF FLOODS IN AMADORA
1.4. TYPICAL MORPHOLOGIC CAUSES AND HAZARD1.5. EXAMPLE
1.6. RESTART SPOTS1.7. FLOOD HAZARD SPOTS
2. FLOODS – HISTORIC LOSS DATA2.1. LAST DECADE
2.2. LAST DECADE (YEAR)2.3. LAST DECADE (MONTH)
2.4. CRITICAL AREAS2.5. PREVENTION
3. FINAL NOTES
FLOODS IN MUNICIPALITY OF AMADORA
1. FLOODS IN MUNICIPALITY OF AMADORA1.1. HYDROGRAPHIC NETWORK
FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014
BASIN Area (Km2) Area (%)
Rio da Costa 4,7 19,8
Rio Jamor 8 33,6
Ribeira de Alcântara 8,6 36,1
Ribeira de Algés 2,5 10,5
Municipality Area 23,8 100
HYDROGRAPHIC NETWORK : - EXTENSION - 46,8 KM
- DRAINAGE DENSITY - LOW ( 2KM/KM2)- STREAM ORIENTATION – N-S OR NW-SE
FLOODS IN MUNICIPALITY OF AMADORA
1. FLOODS IN MUNICIPALITY OF AMADORA1.2. HYDROGRAPHIC NETWORK SUSCEPTIBILITY
FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014
77%
22%1%
HYDROGRAPHIC NETWORK SUS-CEPTIBILITY:
LOW MODERATE HIGH VERY HIGH
# RESULTS OF AN MULTI-CRITERIA ANALYSIS. CONSIDERED: FLOW ACCUMULATION, SLOPE AND PERMEABILITY (LITHOLOGY AND SOIL COVERAGE)
FLOODS IN MUNICIPALITY OF AMADORA
1. FLOODS IN MUNICIPALITY OF AMADORA1.3. MORPHOLOGIC CAUSES OF FLOODS IN AMADORA
FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014
MORFOLOGIC CAUSES CONSIDERED: A - MATCH WITH HYDROGRAPHIC NETWORKB - LOCATION IN SQUARE/ROTUNDA – REDIRECTION OF FLOWC - LOCATION IN SQUARE/ROTUNDA – AREA OF ACCUMULATIOND - LOCATION IN STREET INTERCEPTION – REDIRECTION OF FLOWE - LOCATION IN A ACCUMULATIVE STREETF - ARTIFICIAL BARRIER TO NATURAL FLOWG - ARTIFICIAL LOWERED AREASH - UNDETECTED CAUSES
STUDY THE MORPHOLOGIC CAUSES OF FLOODS IN AMADORA:
54 SPOTS WITH MORE THAN 1 OCCURRENCE (2000-10)8 MORPHOLOGIC CAUSES CONSIDERED
FLOODS IN MUNICIPALITY OF AMADORA
1. FLOODS IN MUNICIPALITY OF AMADORA1.4. TYPICAL MORPHOLOGIC CAUSES AND HAZARD
FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014
Cause/Hazard Very High High Moderate Low Total
A 2 3 5B 1 1C 1 1 1 3D 2 3 4 5 14E 3 8 10 16 37F 4 6 12 22G 2 2 4H 1 1 2
Total 6 18 24 40 88
TYPICAL COMBINATION
D E (2x) E (3x) E (7x)EF (9x)
EF (13x) e E (14x)
ANUAL FREQUENCY (2000-10)
>2,0 <=2 e >1 <=1 a =>0,5 <0,5TYPICAL MORPHOLOGIC CAUSES: A - MATCH WITH HYDROGRAPHIC NETWORK
D - LOCATION IN STREET INTERCEPTION – REDIRECTION OF FLOW
E - LOCATION IN A ACCUMULATIVE STREET
F - ARTIFICIAL BARRIER TO NATURAL FLOW
Summary:◦ TYPICAL CAUSE: E ; E-F◦ LOW AND MODERATE HAZARD SPOTS MATCH WITH: E ; EF◦ VERY HIGH HAZARD SPOTS MATCH WITH: D-E◦ SPOTS IN HYDROGRAPHIC NETWORK MATCH WITH: MODERATE AND LOW HAZARD
FLOODS IN MUNICIPALITY OF AMADORA
1. FLOODS IN MUNICIPALITY OF AMADORA1.5. EXAMPLE
FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014
EX: SPOT Nº 2 – 2,5 FLOODS/YEAR
D - LOCATION IN STREET INTERCEPTION – REDIRECTION OF FLOW
E - LOCATION IN A ACCUMULATIVE STREET
VERY HIGH HAZARD SPOT
Avenida António Feijó
FLOODS IN MUNICIPALITY OF AMADORA
1. FLOODS IN MUNICIPALITY OF AMADORA1.5. EXAMPLE
FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014
EX: SPOT Nº 5 – 1,9 FLOODS/YEAR
E - LOCATION IN A ACCUMULATIVE STREETF - ARTIFICIAL BARRIER TO NATURAL FLOWG - ARTIFICIAL LOWERED AREAS HIGH HAZARD SPOT
Rua António Aleixo
Avenida Dom Pedro V
FLOODS IN MUNICIPALITY OF AMADORA
1. FLOODS IN MUNICIPALITY OF AMADORA1.6. RESTART SPOTS
FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014
EXAMPLE OF “RESTART SPOTS”
SPOTFLOODS
2000-05 2006-10 TOTAL
21 0 9 9
50 0 3 3
PROBLEM: ACCUMULATION OF SEDIMENTS AND MATERIAL FROM A ROAD
CONSTRUTION SITE (JUN 2008-ABR 11)
FLOODS IN MUNICIPALITY OF AMADORA
1. FLOODS IN MUNICIPALITY OF AMADORA1.7. FLOOD HAZARD SPOTS
FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014
477 OCCURENCES (2000-10)IN 54 SPOTS
4 SPOTS – VERY HIGH HAZARD11 SPOTS – HIGH HAZARD18 SPOTS – MODERATE HAZARD21 SPOTS – LOW HAZARD
ANUAL FREQUENCY
>2,0
<=2 e >1
<=1 a =>0,5
<0,5
PARISH WITH MORE SPOTS DENSITY:ÁGUAS LIVRES (4/KM2/YEAR)
2. FLOODS – HISTORIC LOSS DATA2.1. LAST DECADE
IN THE LAST DECADE, THE MUNICIPALITY REGISTERED ABOUT 1686 URBAN FLOODS. URBAN FLOODS ARE ONE OF THE EVENTS WHICH CAUSES MORE LOSSES: DESTRUCTION OF PROPERTY,
ECONOMIC DAMAGE, DISRUPTION OF SERVICES.
FLOODS IN MUNICIPALITY OF AMADORA
FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014
YEARS WITH MORE TOTAL PRECIPITATION: (1) 2000 (2) 2010 (3) 2001;
YEARS WITH MORE FLOODING EVENTS: (1) 2000 (2) 2003 (3) 2006;
YEARS WITH LESS TOTAL PRECIPITATION: (1) 2005 (2) 2004 (3) 2007;
YEARS WITH FEWER FLOODING EVENTS: (1) 2004 (2) 2005 (3) 2007;
Not always the trend is: MORE PRECIPITATION = MORE FLOODS
FLOODS IN MUNICIPALITY OF AMADORA
FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014
2. FLOODS – HISTORIC LOSS DATA2.2. LAST DECADE (YEAR)
MONTHS WITH THE HIGHEST TOTAL PRECIPITATION:
(1) DECEMBER (2) OCTOBER (3) NOVEMBER; MONTHS WITH MORE FLOODING
EVENTS: (1) OCTOBER (2) NOVEMBER (3) DECEMBER;
MONTHS WITH LESS TOTAL PRECIPITATION:
(1) JULY (2) AUGUST (3) JUNE; MONTHS WITH FEWER FLOODING
EVENTS: (1) MAY (2) JULY (3) JUNE.
OCTOBER, NOVEMBER AND DECEMBER, ARE THE MONTHS WITH MORE PRECIPITATION AND MORE OCCURRENCES
FLOODS IN MUNICIPALITY OF AMADORA
FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014
2. FLOODS – HISTORIC LOSS DATA2.3. LAST DECADE (MONTH)
THE FREQUENCY AND OCCURRENCE OF URBAN FLOODS ARE MAINLY DUE TO HEAVY RAINFALL AND HIGH URBANIZATION IN THE
BASINS OF THE MUNICIPALITY.
FLOODS “HOT-SPOTS”•IC 19 Acesso Hospital Amadora-Sintra (30 urban floods).•Rua Elias Garcia + Avenida Dom Nuno Alvares Pereira.•Estrada da Falagueira.•Avenida Dom Pedro V.•Rua Correia Teles.•Rua Capitães de abril.•Avenida Cardoso Lopes + Avenida Combatentes da Grande Guerra.•Avenida da República.•Avenida Quinta Grande.
FLOODS IN MUNICIPALITY OF AMADORA
FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014
2. FLOODS – HISTORIC LOSS DATA2.4. CRITICAL AREAS
Avenida Dom Pedro V (Damaia)
FLOODS IN MUNICIPALITY OF AMADORA
FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014
2. FLOODS – HISTORIC LOSS DATA2.4. CRITICAL AREAS
Rotunda IC19 Hospital (Venteira)
FLOODS IN MUNICIPALITY OF AMADORA
FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014
Intervention and resizing of the drainage network
(Water and Sewage Service – SMAS)
2. FLOODS – HISTORIC LOSS DATA2.4. CRITICAL AREAS
FLOODS IN MUNICIPALITY OF AMADORA
FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014
PREVENTION COMMITMENT : - DISSEMINATION OF PREVENTATIVE MEASURES (CIVIL PROTECTION);
- URBAN DRAINAGE SYSTEM RESIZING (SMAS); - TECHNICAL STUDIES (DIG);
- URBAN CLEANING (CIVIL PROTECTION AND THE LOCAL COUNCILS);- WEATHER AND CIVIL PROTECTION WARNING SYSTEM AVAILABLE TO
THE COMMUNITY (CIVIL PROTECTION);
2. FLOODS – HISTORIC LOSS DATA2.5. PREVENTION
FLOODS IN MUNICIPALITY OF AMADORA
FLOOD CBA SEMINAR | LISBON, JANUARY 21th | 2014
3. FINAL NOTES
-LOW OR MODERATE HYDROGRAPHIC NETWORK SUSCEPTIBILITY TO FLOODS;
- THE LOW PERMEABILITY OF THE SOIL AND
THE HIGH DENSITY OF CONSTRUTION INCREASED THE FREQUENCY OF FLOODS IN
AMADORA;
- IT WOULD BE IMPORTANT TO HAVE DIRECT AND INDIRECT COSTS OF FLOODS;
- THERE IS A CONSIDERABLE EFFORT TO
IMPROVE PREVENTIVE MEASURES;
- TECHNICAL STUDIES HAVE BEEN IMPORTANT TO IMPROVE KNOWLEDGE
ABOUT FLOODING
FLOODS IN MUNICIPALITY OF AMADORA
Emanuel Crucho | Geographic Information DivisionLuís Carvalho | Civil Protection Municipal Service
Universidade Nova de LisboaLisbon, January 21th | 2014