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The explosive legacy from the Wars
Baltic Ordnance Safety Board
HELCOM SUBMERGED Szczecin 2014-10-29
1914-1945 179 730 575 308
Wars Baltic Ordnance Safety Board HELCOM SUBMERGED Szczecin - - PowerPoint PPT Presentation
Wars Baltic Ordnance Safety Board HELCOM SUBMERGED Szczecin - - PowerPoint PPT Presentation
The explosive legacy from the Wars Baltic Ordnance Safety Board HELCOM SUBMERGED Szczecin 2014-10-29 575 308 179 730 1914-1945 180 000 mines laid in 2200 minefields 1848-1945 Mine disposal 1914-1920 The accuracy of the positions are
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180 000 mines laid in 2200 minefields 1848-1945
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Mine disposal 1914-1920
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The accuracy of the positions are dependent on two factors: “The navigational factor” & “The source factor”
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The positions of the minefield can't be more precise than the accuracy of the navigation when the mines were laid
“The navigational factor”
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´19.33 22.58 21.00
Time after the last positioning Manoeuvres Wind & Sea Threat
24 May 1915 “The navigational factor”
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“The source factor”
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Angiven position
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Navigation factor (N)
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Source factor (S)
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Mine Danger Area
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How many remains?
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Baltic Ordnance Safety Board
SWEDEN, GERMANY, DENMARK, POLAND, LITHUANIA, LATVIA, ESTONIA & FINLAND
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Cleared areas 1995-2011
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Baltic Ordnance Safety Board priority system
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Criteria
- Activity
(1-7p)
– Shipping
(1-7p)
– Anchorage Areas
(Full p)
– Fishery
(1-3p)
– UW-installations
(Not implemented)
- Depth
(1-7p)
- Intelligence
(1-5p)
- Mine density
(1-7p)
- Clearance
(-1- -7p or -29p)
- Seabed conditions
(Yes/No)
- Biology/Environmental Protection Areas
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Shipping
7 p 6 p 4 p 3 p 1 p
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Fishery
3 p 2 p 1 p
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Depth
6 p 5 p 4 p 3 p 2 p 7 p
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Intelligence
5 p 4 p 3 p 2 p 1 p
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Mine density
5 p 4 p 3 p 2 p 1 p 6 p 7 p
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Shipping
+ + + _
Fishery Anchorage Areas Depth Intelligence Mine density Clearance
+ +
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Total
Priority
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1999-2007 0,55 mines/unit/day 2008-2012 1,05 mines/unit/day 1999-2007 0,31 mines/unit/day 2008-2011 0,75 mines/unit/day Mines found due to surgical
- perations in areas cleared
pre BOSB Mines found in areas not known to be mined pre BOSB
The efficiency of BOSB supported operations
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If we shall be successful:
- 1. Merge available data of where and what and present it in a
compiled picture. One nation should be responsible for the master database
- 2. Try to figure out what we don´t know and what we have to
know
- 3. Make a general prioritization based on criterias and available
data
- 4. Go into details (research) of each area and refine the
compiled picture and prioritized areas.