Understanding the Permafrost–Hydrate System and Associated Methane Releases in the East Siberian Arctic Shelf; Geosciences; Vol. 9, iss. 6
| Parent link: | Geosciences Vol. 9, iss. 6.— 2019.— [251, 23 p.] |
|---|---|
| 第一著者: | |
| 団体著者: | |
| その他の著者: | , |
| 要約: | Title screen This paper summarizes current understanding of the processes that determine the dynamics of the subsea permafrost–hydrate system existing in the largest, shallowest shelf in the Arctic Ocean; the East Siberian Arctic Shelf (ESAS). We review key environmental factors and mechanisms that determine formation, current dynamics, and thermal state of subsea permafrost, mechanisms of its destabilization, and rates of its thawing; a full section of this paper is devoted to this topic. Another important question regards the possible existence of permafrost-related hydrates at shallow ground depth and in the shallow shelf environment. We review the history of and earlier insights about the topic followed by an extensive review of experimental work to establish the physics of shallow Arctic hydrates. We also provide a principal (simplified) scheme explaining the normal and altered dynamics of the permafrost–hydrate system as glacial–interglacial climate epochs alternate. We also review specific features of methane releases determined by the current state of the subsea-permafrost system and possible future dynamics. This review presents methane results obtained in the ESAS during two periods: 1994–2000 and 2003–2017. A final section is devoted to discussing future work that is required to achieve an improved understanding of the subject. |
| 言語: | 英語 |
| 出版事項: |
2019
|
| 主題: | |
| オンライン･アクセス: | http://earchive.tpu.ru/handle/11683/64798 https://doi.org/10.3390/geosciences9060251 |
| フォーマット: | 電子媒体 図書の章 |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662884 |
MARC
| LEADER | 00000naa0a2200000 4500 | ||
|---|---|---|---|
| 001 | 662884 | ||
| 005 | 20250415161245.0 | ||
| 035 | |a (RuTPU)RU\TPU\network\34043 | ||
| 035 | |a RU\TPU\network\34041 | ||
| 090 | |a 662884 | ||
| 100 | |a 20201120d2019 k||y0rusy50 ba | ||
| 101 | 0 | |a eng | |
| 135 | |a drcn ---uucaa | ||
| 181 | 0 | |a i | |
| 182 | 0 | |a b | |
| 200 | 1 | |a Understanding the Permafrost–Hydrate System and Associated Methane Releases in the East Siberian Arctic Shelf |f N. E. Shakhova, I. P. Semiletov, E. M. Chuvilin | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 100 tit.] | ||
| 330 | |a This paper summarizes current understanding of the processes that determine the dynamics of the subsea permafrost–hydrate system existing in the largest, shallowest shelf in the Arctic Ocean; the East Siberian Arctic Shelf (ESAS). We review key environmental factors and mechanisms that determine formation, current dynamics, and thermal state of subsea permafrost, mechanisms of its destabilization, and rates of its thawing; a full section of this paper is devoted to this topic. Another important question regards the possible existence of permafrost-related hydrates at shallow ground depth and in the shallow shelf environment. We review the history of and earlier insights about the topic followed by an extensive review of experimental work to establish the physics of shallow Arctic hydrates. We also provide a principal (simplified) scheme explaining the normal and altered dynamics of the permafrost–hydrate system as glacial–interglacial climate epochs alternate. We also review specific features of methane releases determined by the current state of the subsea-permafrost system and possible future dynamics. This review presents methane results obtained in the ESAS during two periods: 1994–2000 and 2003–2017. A final section is devoted to discussing future work that is required to achieve an improved understanding of the subject. | ||
| 461 | |t Geosciences | ||
| 463 | |t Vol. 9, iss. 6 |v [251, 23 p.] |d 2019 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a East Siberian Arctic Shelf | |
| 610 | 1 | |a subsea permafrost | |
| 610 | 1 | |a Arctic hydrates | |
| 610 | 1 | |a shelf hydrates | |
| 610 | 1 | |a арктический шельф | |
| 610 | 1 | |a вечная мерзлота | |
| 610 | 1 | |a гидраты | |
| 700 | 1 | |a Shakhova |b N. E. |c geologist |c Professor of Tomsk Polytechnic University, doctor of geological-mineralogical Sciences |f 1959- |g Nataljya Evgenjevna |3 (RuTPU)RU\TPU\pers\35374 |9 18599 | |
| 701 | 1 | |a Semiletov |b I. P. |c geographer |c Professor of Tomsk Polytechnic University, doctor of geographical Sciences |f 1955- |g Igor Petrovich |3 (RuTPU)RU\TPU\pers\34220 |9 17751 | |
| 701 | 1 | |a Chuvilin |b E. M. |g Evgeny Mikhaylovich | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа природных ресурсов |b Отделение геологии |3 (RuTPU)RU\TPU\col\23542 |9 28339 |
| 801 | 2 | |a RU |b 63413507 |c 20210316 |g RCR | |
| 850 | |a 63413507 | ||
| 856 | 4 | |u http://earchive.tpu.ru/handle/11683/64798 | |
| 856 | 4 | |u https://doi.org/10.3390/geosciences9060251 | |
| 942 | |c CF | ||