Costs

Overview

The costs of an experiment with OBS depends mainly on the number of instruments used and the duration of deployment. They can be devided into consumables (anchor, small parts and batteries), insurance and services (mobilisation, demobilisation and transports). Additionally, one or two experienced technician are required on board for deployment and recovery.

Important! Please note, the amounts given in the tables below are for orientation only. These are estimates (as at January 2020) without value-added tax (19%).

Batteriessee extra table
Anchor and small parts500 EUR / OBS
Mobilisation / Demobilisation1000 EUR / OBS
Insurance3000 EUR / OBS
Technical support onboard650 EUR / day / person + travel expenses
Transportsnot applicable


Batteries

Depending on the number of batteries, the standard OBS can be used in two configurations, a small version with only one pressure tube (max. 84 cells) and without the outer floating units, and a large (normal) version including two pressure tubes (max. 168 cells) and the outer floating units.

Alkaline cells are suggested to be used for short-term experiments. Battery packages of 48 and 96 cells each supply a deployment duration of 28-118 days (sampling rate 500 Hz) depending on the data logger used.

Number of cellsCapacity MCSCapcity 6D6Price / unitConfiguration
4828 days59 days400 EURsmall
9655 days118 days800 EURsmall

 

Lithium cells are recommended to be used for long-term experiments. Each pressure tube has a capacity of 84 cells. Depending on the data logger used a maximum deployment duration of 432 days can be achieved (sampling rate 50 Hz). The expenses of the lithium cells stongly depend on the number ordered.

Number of cellsCapacity 6D6Capacity MCSPrice / cellConfiguration
1 x 84185 days432 days15-20 EURsmall
2 x 84 370 daysnot available15-20 EURlarge

 

Transports

Several transports are necessary for an OBS long-term deployment. The OBS, the consumables and the auxiliary equipment (tools, deck units, GPS, laptop) are shipped in 20' maritime containers before the deplopyment. 12 OBS plus auxiliary equipment fit into one container. After the deployment cruise, the auxiliary equipment and eventually the empty transport boxes must be sent back to Bremerhaven, mostly as packaged goods. Befor the second cruise to recover the OBS, the equipment is shipped to the starting harbour, after the cruise the OBS are send back to AWI in containers.

Example

Long-term deployment: 24 OBS, one year deployment, two cruises of 15 days, two technicians per cruise

Anchor /small parts24 OBS x   500 EUR12000 EUR
Batteries24 OBS x 3000 EUR 72000 EUR
Insurance24 OBS x 3000 EUR72000 EUR
Mob / Demob24 OBS x 1000 EUR24000 EUR
Transports2 x 2 containers + 2 x packaged goods20000 EUR
Technician2 technicians x 2 cruises x 15 days x 650 EUR39000 EUR
Sum (without travel expenses and VAT)239000 EUR