| 000 | 04048nlm0a2200445 4500 | ||
|---|---|---|---|
| 001 | 648920 | ||
| 005 | 20231030040854.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\14079 | ||
| 090 | _a648920 | ||
| 100 | _a20160609a2015 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 105 | _aa z 101zy | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aObservations of methane concentration and d13C-CH4 in the East Siberian Sea Waters _fK. P. Shcherbakova [et al.] |
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| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 330 | _aLarge amounts of methane (CH4) are stored beneath the East Siberian Arctic Shelf (ESAS) within subsea permafrost, as gas hydrates or free gas underneath. With the ongoing climate warming in that region, there is potential for significant release of CH4 to the water column and eventually to the atmosphere. Over a decade of shipboard expeditions has shown enhanced CH4 levels in large parts of the ESAS waters, but we still lack knowledge on which pools are responsible for the releases, as well release mechanisms and removal processes in the water column.Here we show dissolved methane concentration and d13C-CH4 data from water column profiles along a transect across the outer East Siberian Sea, ranging from 140 E to 170 E, taken during the SWERUS-C3 expedition in summer 2014. Elevated CH4 levels were observed throughout the transect; reaching a maximum value of 716nM and a median of 30nM. Due to ice cover in large parts, concentration maxima were mainly located close to the surface or around the picnocline, with the exception of bottom maximum close to a seep area around 160 N. Initial results for d13C-CH4 range from -60 to -47 per mille vs VPDB. | ||
| 463 |
_tAGU Fall Meeting - 2015 _oabstracts, San Francisco, December 14-18, 2015 _v[C43A-0782] _d2015 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aметан | |
| 610 | 1 | _aконцентрация | |
| 610 | 1 | _aВосточно-Сибирское море | |
| 701 | 1 |
_aShcherbakova _bK. P. _cgeologist _cengineer of Tomsk Polytechnic University _f1992- _gKseniya Pavlovna _2stltpush _3(RuTPU)RU\TPU\pers\37592 |
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| 701 | 1 |
_aSteinbach _bJu. _gJulia |
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| 701 | 1 |
_aHolmstrand _bH. _gHenry |
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| 701 | 1 |
_aKosmach _bD. A. _cgeologist _cengineer at Tomsk Polytechnic University _f1981- _gDenis Alekseevich _2stltpush _3(RuTPU)RU\TPU\pers\36343 |
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| 701 | 1 |
_aPanova _bE. V. _cgeologist _cengineer of Tomsk Polytechnic University _f1992- _gElena Vladimirovna _2stltpush _3(RuTPU)RU\TPU\pers\33995 |
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| 701 | 1 |
_aGustafsson _bO. _gOrjan |
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| 701 | 1 |
_aSemiletov _bI. P. _cgeographer _cProfessor of Tomsk Polytechnic University, doctor of geographical Sciences _f1955- _gIgor Petrovich _2stltpush _3(RuTPU)RU\TPU\pers\34220 |
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| 701 | 1 |
_aShakhova _bN. E. _cgeologist _cProfessor of Tomsk Polytechnic University, doctor of geological-mineralogical Sciences _f1959- _gNataljya Evgenjevna _2stltpush _3(RuTPU)RU\TPU\pers\35374 |
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| 701 | 1 |
_aSapart _bC. Ju. _gCelia Julia |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет (ТПУ) _bИнститут природных ресурсов (ИПР) _bКафедра геологии и разведки полезных ископаемых (ГРПИ) _bМеждународная научно-образовательная лаборатория изучения углерода арктических морей (МНОЛ ИУАМ) _h7398 _2stltpush _3(RuTPU)RU\TPU\col\20711 |
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет (ТПУ) _bИнститут природных ресурсов (ИПР) _bКафедра геологии и разведки полезных ископаемых (ГРПИ) _h2181 _2stltpush _3(RuTPU)RU\TPU\col\18660 |
| 801 | 2 |
_aRU _b63413507 _c20170209 _gRCR |
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| 856 | 4 | _uhttps://agu.confex.com/agu/fm15/meetingapp.cgi/Paper/65853 | |
| 942 | _cCF | ||