A paper with BOX-WIN project leader Anders Stigebrandt as first author and staff member Malin Ödalen as one of the co-authors regarding the phosphorus dynamics in the Baltic proper and the Bornholm Basin has just been published in the journal AMBIO.

The paper can be downloaded from our Downloads-page and is found under the topic “Other publications”.

Abstract

The external phosphorus (P) loading has been halved, but the P content in the water column and the area of anoxic bottoms in Baltic proper has increased during the last 30 years. This can be explained by a temporary internal source of dissolved inorganic phosphorus (DIP) that is turned on when the water above the bottom sediment becomes anoxic. A load-response model, explaining the evolution from 1980 to 2005, suggests that the average specific DIP flux from anoxic bottoms in the Baltic proper is about 2.3 g P m-2 year-1. This is commensurable with fluxes estimated in situ from anoxic bottoms in the open Baltic proper and from hydrographic data in the deep part of Bornholm Basin. Oxygenation of anoxic bottoms, natural or manmade, may quickly turn off the internal P source from anoxic bottoms. This new P-paradigm should have far-reaching implications for abatement of eutrophication in the Baltic proper.

A new report with results of the BOX-WIN project has now been published;

Technical Report no. 9
“Application procedure requirements for concession to anchor and use a floating offshore wind turbine with pumping package in the Bornholm Basin – based on national legislation and the Espoo (EIA) Convention”

An application for concession will be required if a Demonstrator is to be tested in the Bornholm Basin. This report focuses on the guidelines for formulation of an application for concession, following Danish procedure and with regard to the Espoo Convention.

All BOX-WIN Technical Reports are available for download at our Downloads page.

The latest report with results of the BOX-WIN project has just been published;

Technical Report no. 8
“Plan and Cost Estimate for a Demonstrator – a floating wind turbine unit equipped with pumps for oxygenation of the deepwater, and associated patents and immaterial rights”

In this report, the estimated costs for the realization of a Demonstrator are presented together with an expected time schedule. Costs for alternative configurations and larger systems of pumps are also estimated.

This Technical Report can now be downloaded from our Downloads page.

Two new reports with results of the BOX-WIN project have now been published. These Technical Reports can now be downloaded from our Downloads page.

Technical Report no. 6
“Long-time behaviour of mustard gas dumped in the Bornholm Basin”

Technical Report no. 7
“Survey of Swedish suppliers to a floating wind turbine unit equipped with pumps for oxygenation of the deepwater”

The results presented in these reports are important for the environmental assessment and the construction of a Demonstrator in the Bornholm Basin.

The latest results of the BOX-WIN project have now been published. The results are presented in two Technical Reports which can be downloaded from our Downloads page.

Technical Report no. 4
“Assessing feasible mooring technologies for a Demonstrator in the Bornholm Basin as restricted to the modes of operation and limitations for the Demonstrator”

Technical Report no. 5
“Assessing important technical risks from use of a floating wind turbine unit equipped with pumps for oxygenation of the deepwater”

These reports concern mooring of a Demonstrator and technical risks which need to be considered in the construction of the Demonstrator.

The first results of the BOX-WIN project have now been published and are available for download here. These first results are presented in three separate reports:

Technical Report no. 1
”Hydrographical conditions in the Bornholm Basin of importance for oxygenation of the deepwater by pumping down oxygen saturated water from above the halocline”

Technical Report no. 2
”Factors of potential importance for the location of wind-driven water pumps in the Bornholm Basin” 

Technical Report no. 3
“Improving oxygen conditions in the deeper parts of Bornholm Sea by pumped injection of winter water” 

BOX-WIN project leader Anders Stigebrandt has written ”Evaluating Geoengineering as a method to Revive Baltic Sea Dead Zones” in the December 2012 Soapbox column in Sea Technology magazine.

In this feature he describes the general ideas of oxygenation of the Baltic Sea anoxic bottoms by pumping down oxygen saturated winter water from above the halocline to the deepwater. He also assesses the possibilities and requirements of the work within the BOX-WIN project.

The feature can be downloaded from our Downloads-page and is found under the topic ”Other publications”.

Editor Laura Höflinger from Der Spiegel recently met BOX-WIN project coordinator Anders Stigebrandt for an interview about Baltic Sea oxygenation by pumping. She was first introduced to the ongoing oxygenation project in the By Fjord (the BOX project) and then to the aim of the BOX-WIN project to test oxygenation by geoengineering in the Baltic Sea.

This resulted in an article which has now been published in the paper version of Der Spiegel (in German) and also in the online version Spiegel Online (in both German and English).

The English version of the article is found here: http://www.spiegel.de/international/europe/project-plans-to-pump-oxygen-into-baltic-sea-using-wind-mills-a-876439.html

Welcome to the new website of the BOX-WIN project. BOX-WIN is an acronym for Baltic Sea oxygenation and floating windpower. The project aims at giving life back to the Baltic deep sea.

You’ll be able to find loads of information about the background and the ongoings of the project. We’re currently in progress of conducting feasibility studies for setting up our first demonstrator unit.