Sensitivity of the Arctic Ocean gas hydrate to climate changes in the period of 1948-2015

Valentina V. Malakhova, Elena N. Golubeva, DIna F. Iakshina

Результат исследования: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференциинаучнаярецензирование

1 Цитирования (Scopus)

Аннотация

The objective of the present study is to analyze the interactions between a methane hydrates stability zone and the ocean temperature variations and to define the hydrate sensitivity to the contemporary warming in the Arctic Ocean. To obtain the spatial-temporary variability of the ocean bottom temperature we employ the ICMMG regional Arctic-North Atlantic ocean model that has been developed in the Institute of Computational Mathematics and Mathematical Geophysics. With the ice-ocean model the Arctic bottom water temperatures were analyzed. The resulting warming ocean bottom water is spatially inhomogeneous, with a strong impact by the Atlantic inflow on shallow regions of 200-500 m depth. Results of the mathematical modeling of the dynamics of methane hydrate stability zone in the Arctic Ocean sediment are reported. We find that the reduction of the methane hydrate stability zone occurs in the Arctic Ocean between 250 and 400 m water depths within the upper 100 m of sediment in the area influenced by the Atlantic inflow. We have identified the areas of the Arctic Ocean where an increase in methane release is probable to occur at the present time.

Язык оригиналаанглийский
Название основной публикации23rd International Symposium on Atmospheric and Ocean Optics
Подзаголовок основной публикацииAtmospheric Physics
РедакторыGG Matvienko, OA Romanovskii
ИздательSPIE
Число страниц10
Том10466
ISBN (электронное издание)9781510614130
ISBN (печатное издание)978-1-5106-1413-0
DOI
СостояниеОпубликовано - 1 янв 2017
Событие23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics - Irkutsk, Российская Федерация
Продолжительность: 3 июл 20177 июл 2017

Серия публикаций

НазваниеProceedings of SPIE
ИздательSPIE-INT SOC OPTICAL ENGINEERING
Том10466
ISSN (печатное издание)0277-786X

Конференция

Конференция23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
СтранаРоссийская Федерация
ГородIrkutsk
Период03.07.201707.07.2017

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  • Цитировать

    Malakhova, V. V., Golubeva, E. N., & Iakshina, DI. F. (2017). Sensitivity of the Arctic Ocean gas hydrate to climate changes in the period of 1948-2015. В GG. Matvienko, & OA. Romanovskii (Ред.), 23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics (Том 10466). [1046656] (Proceedings of SPIE; Том 10466). SPIE. https://doi.org/10.1117/12.2285524