[microsound] hydrophones and methane

[nathalie fougeras]

Thanks!

So the name of the lake is Tometräsk probably
 here<http://maps.google.se/maps?oe=utf-8&client=firefox-a&ie=UTF8&q=Abisko+Scientific+Research+Station+in+Northern+Sweden&fb=1&gl=se&hq=Abisko+Scientific+Research+Station&hnear=Northern+Europe&cid=0,0,6501683112971180912&ei=glP1TLfDF8vqObWH6KkI&oi=local_result&ved=0CCQQnwIwAQ&ll=68.358699,19.02832&spn=1.629077,9.393311&z=7>

Nathalie


2010/11/30 Michael Palace <palace at guero.sr.unh.edu>

>  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. About  20 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>
>
>>  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
>>
>>
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>>
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>
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