[microsound] hydrophones and methane

[Michael Palace]

Abisko Scientific Research Station in Northern Sweden

This is from my graduate student's fellowship proposal.

A second site was established in late summer 2010 in Stordalen Mire (68° 
22'N, 19° 03'E), on the southern side of Lake Torneträsk, a 
methane-bubbling lake in Abisko, Sweden. About20 km from Stordalen Mire 
and also located on the lake is the Abisko Scientific Research Station 
(ANS), a field laboratory site dedicated to work studying the lake and 
the surrounding environment.  This study site lies about 200 km north of 
the Arctic Circle and approximately 385 m above sea level, on the south 
shore of Lake Torneträsk. The area has a varied topography, 
geomorphology, geology and climate, and a diverse flora and fauna. The 
lake surface is at 341 m and the highest mountain in the area reaches 
1991 m. Lake Torneträsk with an area of about 330 km², a catchment area 
of 3 300 km² and a mean depth of 52 m, dominates the area. The average 
annual temperature is approximately -1.0°C. July is the warmest month 
(mean about +11°C) and January the coldest (-12°C). Annual precipitation 
at the lake varies from about 1000 mm in the west to 400 mm in the east, 
with a minimum of 304 mm (among the lowest in all Scandinavia) in the 
sheltered Abisko valley.

Mike Palace

On 11/30/2010 2:14 PM, nathalie fougeras wrote:
> Thanks
> What is the name of the swedish lake?
>
> Nathalie
> LAB gallery Sweden
>
> --
>
> 2010/11/22 Michael Palace <palace at guero.sr.unh.edu 
> <mailto:palace at guero.sr.unh.edu>>
>
>     Okay,
>
>     I've talked with my collaborator and I'll try to get some
>     preliminary data out to you all.
>
>     Files will be 2 Gb Mp3 files.  We use zoom h4 with some
>     hydrophones to sample over many days.  the zoom makes a new file
>     ever 2 gb so when running continuously we can get about 24 days
>     without have to visit the instruments.
>
>     Initial deployment was in a fen in New Hampshire and on a lake in
>     Sweden.  I'll have more next week and the mp3 files.
>
>     Mike palace
>
>
>     On 11/18/2010 3:53 PM, Michael Palace wrote:
>>     *http://www.eos.unh.edu/Spheres_1110/news_facstaff.shtml
>>
>>     Ruth Varner* and *Michael Palace* of CSRC were recently funded by
>>     the U.S. Geological Survey to develop a prototype instrument to
>>     detect ebullition or bubbling events of methane in wetland and
>>     lake ecosystems. This novel method utilizes hydrophones
>>     (underwater microphones) to monitor and extract this information
>>     cheaply and efficiently over long temporal scales. Coupling these
>>     audio methods with the analysis of gas samples will help to
>>     determine the pathway by which methane is formed through
>>     microbial processes or methanogenesis.
>>
>>     I'm wondering if I get these long audio files together if people
>>     might be interested in making a microsound project using them as
>>     source files.
>>
>>     Mike Palace
>>
>>
>>     _______________________________________________
>>     microsound mailing list
>>     microsound at microsound.org <mailto:microsound at microsound.org>
>>     http://or8.net/mailman/listinfo/microsound
>
>     _______________________________________________
>     microsound mailing list
>     microsound at microsound.org <mailto:microsound at microsound.org>
>     http://or8.net/mailman/listinfo/microsound
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://or8.net/pipermail/microsound/attachments/20101130/5bf6bafd/attachment.html>