Archive for the ‘ecolocated’ Category

Abandon unsustainable residencies

Tuesday, September 22nd, 2009

M.A.R.I.N. vessel at Tate Liverpool M.A.R.I.N. is an investigation in how an art and science residency itself can be sustainable and mobile at the same time. Our main area of research are marine biological and cultural ecosystems. For the AND festival, we abandoned flights for a 11-week residency at the Irish Sea. We sailed an equivalent of 4 hours of flight distance, from North of Germany to Scotland, onto Northern Ireland, and arriving to the coast of Cumbria. Hosted by Folly (Lancaster) we did workshops with SoundWave (Workington), The Dock Museum & Dropzone (Barrow-in-Furness) and Tate & Fact (Liverpool).

Workshop participants have contributed with sound, video and stills, some of which you can listen to at Ecolocated Pool group page. For example, youth from DropZone at Barrow-in-Furness did an hour long rap with their own rhymes, and Tate Youth contributed interviews with friends and family of the changing maritime culture of Liverpool. Some fragments are also uploaded to the Ecolocated map based interface, which includes arrival ship blog to Belfast, and audio and water quality data sonifications around the Albert Dock. An experimental stage version of this interface can also be viewed on 3G mobile phones using your browser, and the URL http://marin.cc/ecolocated/mobile.

IMG_1292 You can read blog entries by the resident artists Tapio Mäkelä (FI), Nigel Helyer (AU) and Andreas Siagian (ID), who have collaborated on the project Ecolocated - Littoral Lives.

In Belfast, the Ecolocated team was joined by Michael Lake and Daniel Woo, with whom we authored a major 12-channel surround sound, locative installation, presented at Catalyst Arts gallery, as part of ISEA2009, The International Symposium on Electronic Art. In this work we worked with local marine scientists, historians, ex dock workers and other collaborators. We also measured water quality in the Belfast Lough, map of which was the interface for our project. The end result was a collage where users could navigate through several layers of audio, sonified and visualized data.

Also part of the exhibit here at FACT, The CDPDU (Common Data Processing and Display Unit, M.A.R.I.N. Alpha) by Marko Peljhan, Nejc Trost, and Matthew Biederman, draws satellite marine ecology data and environmental sensor data from a field unit in Santa Barbara, CA, as well as some data from a sister project’s (Arctic Perspective Initiative) expedition to Baffin Bay last month.
In Liverpool, M.A.R.I.N. had a very interesting visit to the British Oceanographic Data Centre, and The Proudman Oceanographic Laboratory. We participated to a Shelf sea workshop, where scientists (and electronic engineers really) discussed latest sea bed velocity sensors, HF radar for wave detection. In the basement of BODC we saw a sonde that makes our water measurement equipment seem like kids play: a gliding torpedo shaped UAV, which uses ballast to zigsaw through the ocean. At the end of an inspiring tour, a discussion with 7 researchers opened up real possibilities for future collaboration ranging from semantic, cartographic, visual and haptic interfaces to environmental data.

Data collection from Belfast to Bangor

Wednesday, August 19th, 2009

ecolocated_072Nigel and myself, accompanied by cap Lars took a 2 night trip to Bangor. We wanted to make a data trace from river Lagan using the YSI 600XL Sonde, recording temperature, pH, salinity, dissolved oxygen and oxygen reduction potential. It was another summer in Belfast with lot of rainfall, so there should be a lot of nutrients in the water. Weather forecast was luckily wrong for the day we went out: it was sunny with a smooth South-Westerly wind that made it a pleasant sail after the harbor area motoring zone. We also stopped along the way to make hydrophone recordings.

ecolocated_235 Once in Bangor, we sought permission to take the catamaran onto a slipway. One of its folding propellers had corroded and literally disintegrated. Also it was time to get rid of some barnacles. They are an amazing species, leaving a substrate behind even when removed, leaving a “bed” for new larvae. Think we removed about 60kg of it from the boat, and put into trash. The catamaran looked mighty big when off water, yet also beautifully designed.

Before dusk, Nigel and I took out the little dinghy boat with the water testing kit and hydrophones. At the entrance to the harbour, a dozen of fishermen were casting for mackerell. A few seals also loved this spot, not least to the treats that returning fishing boats would give them, the unused bait. We got pretty close, 2 meter distance from one of the seals, which seemed to have lost one eye. We tested the water in the commercial and yacht harbor, and then went out to Luke’s point, an area where I knew Bangor still has open sewage to the sea.

ecolocated_074 An unfriendly, cunning rock crept up from the sea to scratch the small engine propeller on the way. When going out to the sea, dissolved oxygen levels improved significantly, but when approaching the spill area, we’d hit values closer to six mg/l DO. The readings were showing worse water quality 200 meters off shore at the spill area than in the visibly polluted commercial harbor of Bangor.

The calculation one city may do is whether the wider impact of their sewage output has long term effects on wider aquatic areas. As it washes out to the open sea, the impact is in the short term, regional. What about the longer term stress on the marine ecosystem?

ecolocated_251 In the harbor, rather new mussle boat with trawling gear was in the harbor. On the coastal road, there was a sign warning to eat any mussels in Belfast Lough because of pollution. I turns out that the mussels in Belfast lough are replanted in other waters, grown, cleaned and sold.

We slept two nights in Bangor, and sailed off early in the morning to record a track from Bangor to the other side of the Lough near a power station, then up to the beginning of the Fairway buoy. The weather was rather windy.

Our water quality testing is something I would call indexical work. In order for the data to be meaningful for science, it takes a long period of time to monitor a single site to take into account changing conditions, and the possible measurement errors (which always are part of the picture). The mobile kind of monitoring that we do helps give an idea of an existing issue that may be worth investigating closer. For example, there are no permanent measuring equipment stationed in front of Bangor to monitor the sewage output.