4th International Symposium of Maritime Security Safety & Environmental Protection

Spatial analysis of oil spills from marine accidents in Greek waters

Authors: Giziakis K., Kanellopoulos N., Gialoutsi S.

University of PiraeusDepartment of Maritime studies

30-05-2013

What is the problem? Marine accidents and incidents ….oil spill….degrading the environment

What is the target? Examine the implementation of a framework analysis of shipping based oil pollution by using spatial analysis and geographical information system. Usage thematic maps for the distribution of oil spills Identify hot spot areas in Greek waters

1. General Overview

Maritime accident analysis:Usage of statistical methods to identify

areas, where accidents and activities

are concentratedCluster methods……accident prevention

…..search and rescue centers allocation

Monitoring oil spillsAbility to extract oil parametersMap oil spills and define the trends

2. Using Geographical Information System in…

Data311 accidents from 2001 to 2011

Variables: → shipdata →Geographical information (latitude, longitude, sea area)→ Size of pollution→Type of accident

3. Spatial analysis of oil spills from marine accidents in Greek waters

4. Maritime traffic in Greece

5. Descriptive Statistics

Figure1: Number of accidents per month

0

10

20

30

40

J F M A M J J A S O N D

Month

Figure 2: Accidental distribution by shiptype

0% 5% 10% 15% 20% 25% 30% 35% 40% 45%

Passenger Ship

General Cargo

Tanker

Bulk Carrier

Container ship

Other ship

:

6. Descriptive Statistics

Figure 3: Distribution of accidents under flag registration

33,7%

1,7%

1,7%

2,1%

2,1%

2,8%

1,7%

2,4%4,5%

3,1%

10,4%

5,6%1,7%

14,6%11,8%

74,0%

3,0%

11,0%

0 110 220

Other flags (less than 5 accidenents)

N/A

Greece

Panama

Malta

Antigua Barbuda

Bahamas

Turkey

Italy

Liberia

North Korea

St Vincetes

Georgia

Cambodia

Albania

White

Black

Grey

7. Spatial distribution analysis of marine accidents

8. Spatial distribution analysis of marine accidents and oil spills

9. Spatial analysis of marine accidents in Saronikos Gulf

10. Spatial analysis of marine accidents in Saronikos Gulf

11. Conclusions

GIS is an undisputable efficient tool for the analysis of information at marine accidents and on oil spills

Saronikos Gulf: high density of maritime traffic….small spots of polluted areas

Severe marine accident in sea could surpass in size small operational oil spilled accidents

What follows next?

Insert factor “vessels movements” …..fomrulate a regression model …..calculate accidental risks

Thanks for the attention