| 000 | 04320nlm1a2200517 4500 | ||
|---|---|---|---|
| 001 | 656483 | ||
| 005 | 20231030041430.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\22924 | ||
| 090 | _a656483 | ||
| 100 | _a20171115a2017 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aSea-air exchange patterns along the central and outer East Siberian Arctic Shelf as inferred from continuous CO2, stable isotope, and bulk chemistry measurements _fC. Humborg [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: p. 1189-1191 (56 tit.)] | ||
| 330 | _aThis large-scale quasi-synoptic study gives a comprehensive picture of sea-air CO2 fluxes during the melt season in the central and outer Laptev Sea (LS) and East Siberian Sea (ESS). During a 7 week cruise we compiled a continuous record of both surface water and air CO2 concentrations, in total 76,892 measurements. Overall, the central and outer parts of the ESAS constituted a sink for CO2, and we estimate a median uptake of 9.4 g C m-2 yr-1 or 6.6 Tg C yr-1. Our results suggest that while the ESS and shelf break waters adjacent to the LS and ESS are net autotrophic systems, the LS is a net heterotrophic system. CO2 sea-air fluxes for the LS were 4.7 g C m-2 yr-1, and for the ESS we estimate an uptake of 7.2 g C m-2 yr-1. Isotopic composition of dissolved inorganic carbon ([sigma]13CDIC and [sigma]13CCO2) in the water column indicates that the LS is depleted in [sigma]13CDICcompared to the Arctic Ocean (ArcO) and ESS with an offset of 0.5‰ which can be explained by mixing of [sigma]13CDIC-depleted riverine waters and 4.0 Tg yr-1 respiration of OCter; only a minor part (0.72 Tg yr-1) of this respired OCter is exchanged with the atmosphere. Property-mixing diagrams of total organic carbon and isotope ratio ([sigma]13CSPE-DOC) versus dissolved organic carbon (DOC) concentration diagram indicate conservative and nonconservative mixing in the LS and ESS, respectively. We suggest land-derived particulate organic carbon from coastal erosion as an additional significant source for the depleted [sigma]13CDIC. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 |
_tGlobal Biogeochemical Cycles _d1987- |
||
| 463 |
_tVol. 31, iss. 7 _v[P. 1173-1191] _d2017 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aВосточно-Сибирский шельф | |
| 610 | 1 | _aАрктика | |
| 610 | 1 | _aморской воздух | |
| 610 | 1 | _aморе Лаптевых | |
| 610 | 1 | _aВосточно-Сибирское море | |
| 701 | 1 |
_aHumborg _bC. _gChristoph |
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| 701 | 1 |
_aGeibel _bM. C. _gMarc |
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| 701 | 1 |
_aAnderson _bL. G. _gLeif |
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| 701 | 1 |
_aBjork _bG. _gGoran |
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| 701 | 1 |
_aMorth _bC.-M. _gCarl-Magnus |
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| 701 | 1 |
_aSundbom _bM. _gMarcus |
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| 701 | 1 |
_aThornton _bB. F. _gBrett |
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| 701 | 1 |
_aDeutsch _bB. _gBarbara |
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| 701 | 1 |
_aGustafsson _bE. _gErik |
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| 701 | 1 |
_aGustafsson _bB. _gBo |
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| 701 | 1 |
_aEk _bJo. _gJorgen |
|
| 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 |
|
| 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 |
| 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 |
| 801 | 2 |
_aRU _b63413507 _c20171115 _gRCR |
|
| 856 | 4 | _uhttp://dx.doi.org/10.1002/2017GB005656 | |
| 942 | _cCF | ||