coastal adaptation and regeneration - iuc...factib le actu al-ideal ideal-factibl e reducción de...

COASTAL ADAPTATION AND REGENERATIONBRUSSELS, NOVEMBER 2019

186,377 INHABITANTS

SEVERE STORMS, GALERNAS, WAVES

CLIMATIC CHANGE RISKS

A COASTAL AND RIVERSIDE CITY

CITY SUFFERS FROM NATURAL DISASTERS RISKS: FLOODS, SEVERE STORMS, GALERNAS & OTHER ENVIRONMENTAL DISRUPTIONS...

Urumea River

FLOODS

CLIMATIC CHANGE RISKS

19561988199620052009201020162018

1996

Decreasing Snowfalls

1996

1893

2014 Big Waves

2008/2010/2013/2014 DAMAGES

RIVER FLOODING

DISASTER RISKS MANAGEMENT

CONTINGENCY PROTOCOLSEMERGENCY PLANSCIVIL DEFENSE

FLOODS

SNOW

FLOOD RISK MANAGEMENT PLAN

•PUBLIC COMMUNICATION•WORKING WITH CIVIL ENTITIES (BASE DATA)• URUMEA FLOODS, BEACH FRONT,•REAL-TIME COMMUNICATION (BASQUE GOVERNMENT, APPLICATIONS)

BUT THERE IS A NEED FOR MORE •PREVENTION AND CORRECTING MEASSURES. •ENFORCEMENT OF PLANNING REGULATIONS•REDUCED PHYSICAL EXPOSURE AND VULNERABILITY

PROCESS AND RESULTS OF THE CLIMATE CHANGE ADAPTATION PLAN FOR THE MUNICIPALITY OF DONOSTIA/SAN SEBASTIAN

Plan de adaptación al Cambio Climático de Donostia/San Sebastián

BACKGROUND

Precedents

1998 Aalborg Chart signed. Local Agenda 21

2008 Covenant of Mayors signed

•Sustainable Energy Action Plan, SEAP•GHG Emission Inventory

Mayors Adapt 2014

Adaptation plan 2017Risk and Vunerability Analysis: sea rise (CPR 8.5: 64cm + 22cm) and extreme waves, river and storm flooding, heat waves with possible impact on health and biodiversity (CPR 8.5: 2.8 degrees).

Compact of Mayors. 2019

SECAP


PARTICIPATION


• Projects and Urban Works•Risk Prevention•Urban Planning•Economical Develoment•Water Management•Social Welfare•Environment•Estrategic Plan

ADAPTATION BOARD

DEPARTMENTS:

Cooperation and institutional coordination

Citizen participation and awareness

Collaboration with knowledge providers


INDICATIONS, SCENARIOS AND MODELLING OF IMPACTS OF CLIMATE CHANGE IN DONOSTIA/SAN SEBASTIAN

Swell Flooding



Flooding by Above-Average Sea Level



River Flooding


ANALYSIS OF VULNERABILITY AND RISK

1/ Problem trees by sector (threat-receptor relations)

2/ Selection of chains of impact and design of statistical data models.

3/ Map of vulnerability and risk in smaller spatial units.


Flooding Exposure Map



Vulnerability:Effect of heat waves on human health.


TYPES OF ADAPTATION MEASURES

Direct intervention:

Hard or protective, Nature-Based SolutionsRegulation of design criteria and uses

Preventive measures:

Emergency ProtocolsTraining, awareness and sensitisationEconomic aids


1.-Estimation of the impacts of climate change on the beaches: study of the 4 beaches of the municipality. Important withdrawal of the beach line, especially for Zurriola, but with greater impact on the beach of La Concha and Ondarreta


2.- Improvement of information: Klima Adapt application (with meteorological data, river levels, air quality and mareograph data)Installation of level detector in the Igara river.Installation of mareograph on the harbour.


Infrastructure for electricity, natural gas, telecommunications, transport, sanitation and water supply, hospitals, sports centers, etc.

3.-Analysis of the impact of climate change on services and infrastructure


Electricidad:

subestaciones y centros de transformación

Telefonía: centrales de telefonía y telefonía móvil

Gas: red de Donostigas y estaciones de regulación y medición



Donostia se Adapta


4.-Hydraulic study and modeling in the sanitation network: improvements in the sanitation network are necessary (wider pipes, cyclonic separators)

Hydrocyclonic separators for T500 Recurrence interval

REINFORCEMENT OF THE PROTECTIVE BREAKWATER

www.ingurumena.eus www.ihobe.eus

ESCENARIO ACTUAL

Incremento de superficie verde: 70%

Incremento de superficie verde: 226%

ESCENARIO FACTIBLE

ESCENARIO IDEAL

STUDY OF SCENARIOS FOR NEW RESIDENTIAL AREA

http://www.ingurumena.eus/

http://www.ihobe.eus/


Biodiversidad vegetal

Escenario actual

Escenario ideal

Escenario factible

Parque Fluvial

UrbanizaciónActual Factible Ideal

RIQUEZA 27 20 24 25DIVERSIDAD Shannon 3.42 3.28 3.74 3.98NÚMERO TOTAL DE PIES 398 412 611 727




Captura de carbono

Escenario actual

Escenario ideal

Actual (t C)

Factible (t C)

Ideal (t C)

C en suelo 152.0 234.4 386.6C en biomasa herbácea 3.7 6.1 10.4C en biomasa leñosa 146.0 185.8 204.9SUMA 301.6 426.2 601.9

C en suelo

Escenario factible




Reducción de Tª y efecto isla de calor

Actual-

Factible

Actual-

Ideal

Ideal-factibl

e

Reducción de Tª (max) 0.66 0.78 0.61

Reducción de Tmrt (max) 26.52 27.7 26.18

1.5m14.00

ACTUAL- FACTIBLE ACTUAL- IDEAL FACTIBLE - IDEAL

Reducción TEMPERATURA

REDUCCIÓN TEMPERATURA

MEDIA RADIANTE




Reducción escorrentíaDiferencia escenario base - ideal:

Actual (m)

Ideal (m)

Diferencia (%)

Escenario base 0.682 -Incremento vegetación - 0.662 5.5

Pavimento permeable - 0.659 5.57

Vegetación + pavimento - 0.651 8



186,377 INHABITANTS

New bridges and elevated bike lanes above the 500-year flood period water level

1. Coverage of soil and vegetation

2. Plant more trees

3. More diverse grasslands

4. Permeable pavements

5. Nest boxes for bird conservation

6. Urban gardens

7. Vegetation in apple courtyards

8. Green parking

9. Green roofs

Nature Based Solutions

Landscape integrated Public Library

Landscape integrationLandscape integration


THANK YOU

coastal adaptation and regeneration - iuc...factib le actu al-ideal ideal-factibl e reducción de...

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