Development of Oil
Combating in the Gulf of
Bothnia
BRISK Final Seminar
Marina Congress Centre, Helsinki
8 December 2011
Jorma Rytkönen
Finnish Environment Institute (SYKE) / Marine Pollution Response
Contents
•
Background
•
Target area
•
Goals of the work
•
Accidents
•
BRISK tool
•
IALA tools
•
Discussion
•
Risk Control….
•
More information
7 Jo rm a Rytkö n e nthe Baltic Sea “BRISK”
Routeing Proposal for Norra Kvarken
Risks defined by BRISK
RISK assessment made Routeing started 2010 & BRISK
National Risk Assessment & BRISK
Traffic
analysis
for FSA
based on
AIS-surveillan
ce
Passenger ships Tankers Tugs Other vessel types BOGSKÄR LÅGSKÄR UTBÅDAN SIMPNÄSS-KLUBB SÖDERARM MÄRKET UNDERSTENBaSSY - Baltic Sea Safety
Case Sea of Åland FSA
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Bay of Bothnia Oil Combating
Prepareddness (Finland) -
Working Groups:
1. Risk analyses
2. Current Prepareddness and
Resources
3. Areas to be Protected
4. Shore Line Classification
5. Logistics
●
Assessment on the existing marine
traffic of the area and future prognoses.
●
Transported amounts of oil to ports
●
Accidents in 2005 – 2011
●
Risky fairways
●
Vulnerable areas in relation of oil spills
or transport routes
●
Places of refugees
Goals of the Work
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Collisions in 2010 (left) and 2001-2010
(right)
7 Jo rm a Rytkö n e nHELCOM: Report on shipping accidents in the Baltic Sea area during 2010
Groundings in 2010 (left) and 2001-2010
(right)
7 Jo rm a Rytkö n e nHELCOM: Report on shipping accidents in the Baltic Sea area during 2010
Area in Focus
7 Jo rm a Rytkö n e n Luleå Kalix Billerud Karslborg Piteå Skellefteå Umeå Rundvik Husum ÖrnsköldsvikBRISK-risk analyses
7 Jo rm a Rytkö n e nScenario Results
All spills
• Existing Ship Traffic
• Existing Response Capacities • Existing Navigational Aid
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Risk evaluation /BRISK
Risk of collisions during winter season (left) and remaining seasons (right), Bothnian Bay:
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1.
Means to determine the
minimum safe channel
width for vessels taking into account aids to
navigation; and the effects of wind and current.
2.
Probability equations
based on vessel track
information and its distribution
3.
Under Keel Clearance
assessment based on
depth of channel, ships draught, speed and squat.
Safety Assessment) by IALA
●
Steps Build on Each Other
○
Expertise Evaluation
○
Baseline Risk
○
Mitigation Effectiveness
○
Additional Interventions
●
Transparent Calculations
●
Results Traceable to Participant
Input
Participants (up to 30) Expertise Evaluation Baseline Risk Discussion Calculate Risk Scales (as needed) Calculate Baseline Risk Mitigation Effecti veness Discussion Calculate Mitigation Effecti veness Additional Intervention Discussion Select Interventions & Estimate Effecti veness Workshop Report Generated - PAWSA Completed Process FlowchartPAWSA - Risk Categories and Factors
Vessel Conditions Traffic Conditions Navigational Conditions Waterway Conditions Immediate Consequences Subsequent Consequences Deep Draft Vessel Quality Volume of Commercial Traffic Winds Visibility Impediments Personnel Injuries Health and Safety Shallow Draft Vessel Quality Volume of Small Craft Traffic Water Movement Dimensions Petroleum Discharge Environmental Commercial Fishing Vessel Quality Traffic Mix Visibility Restrictions Bottom Type Hazardous Material Release Aquatic Resources Small CraftQuality Congestion Obstructions Configuration Mobility Economic
Waterway Risk Model
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Example PAWSA assessment –
identification of risks
•ship
•traffic
•
navigation
•fairway
•consequences
7 Jo rm a Rytkö n e n3 Project status: Risk
Risk of collisions during winter season (left) and remaining seasons (right), Bothnian Bay.
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18 7.12.
IBPlott - main
symbols
DirWay Port Icebreakers Ships7 Jo rm a Rytkö n e n
Ice conditions in mild(left) and severe(right) winter
resources required in national Bay of
Bothnia Project
● Identifying Risks:
○ Check traffic data 2010 (2020); with oil spill probablilities
○ AIS analyses
○ Brainstorms: open water and winter navigation
○ Approaching channels to ports
● Risk analyses
○ SPILLMOD ja SEATRACK WEBB runs
○ Comparison to BRISK results
○ Working groups& public review
● Risk Control Measures
○ Links to other goals
○ Prepareddess & Logistics
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Example of oil spill trajectory in Kymenlaakso area(source: SÖKÖ manual)
●
Risk reduction options:
○ Mandatory pilotage – no measurable effect
○ VTS – already exists - no effect
○ TSS – no effect
○ ECDIS – mandatory ECDIS minor effect
○ DB hull at cargo tanks < 5000 BRT - unchanged situation
○ DB hull at bunker tanks – minor effect
○ Escort towing for tankers – no effect
○ Reallocation of response capacities –no effect, but !!
○ Additional response capacities – shallow water response capacity ?
○ Night vision capability – no effect – need to be investigated
○ Recovery from ice – need to be investigated
Preliminary findings for Sub-Region 1
(analysed from BRISK by Sweden and
Finland)
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