Influence of snow cover on the thermal regime of a polythermal glacier in Western Spitsbergen
Influence of snow cover, climate and glacier parameters on the cold-ice layer thickness and thermal regime in the ablation area of a polythermal glacier in Western Svalbard was investigated. Numerical modeling has demonstrated that a thickness of a cold layer in a polythermal glacier depends on a re...
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| Format: | Article |
| Language: | Russian |
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Nauka
2015-07-01
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| Series: | Лëд и снег |
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| Online Access: | https://ice-snow.igras.ru/jour/article/view/181 |
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| author | A. V. Sosnovsky Yu. Ya. Macheret A. F. Glazovsky I. I. Lavrentiev |
| author_facet | A. V. Sosnovsky Yu. Ya. Macheret A. F. Glazovsky I. I. Lavrentiev |
| author_sort | A. V. Sosnovsky |
| collection | DOAJ |
| description | Influence of snow cover, climate and glacier parameters on the cold-ice layer thickness and thermal regime in the ablation area of a polythermal glacier in Western Svalbard was investigated. Numerical modeling has demonstrated that a thickness of a cold layer in a polythermal glacier depends on a relation between the ablation on the surface and the freezing rate at the layer base. If the ablation rate is lower than that of the freezing, the layer thickness grows until the ablation and freezing rates become equal. Estimations show that in a case of slightly negative air temperatures on the glacier its cold-ice layer thickness increases when the snow cover thickness grows. |
| format | Article |
| id | doaj-art-dfa2e223313349fbb0cff72d0e936000 |
| institution | DOAJ |
| issn | 2076-6734 2412-3765 |
| language | Russian |
| publishDate | 2015-07-01 |
| publisher | Nauka |
| record_format | Article |
| series | Лëд и снег |
| spelling | doaj-art-dfa2e223313349fbb0cff72d0e9360002025-08-20T03:00:46ZrusNaukaЛëд и снег2076-67342412-37652015-07-01553273710.15356/2076-6734-2015-3-27-37174Influence of snow cover on the thermal regime of a polythermal glacier in Western SpitsbergenA. V. Sosnovsky0Yu. Ya. Macheret1A. F. Glazovsky2I. I. Lavrentiev3Institute of Geography, Russian Academy of Sciences, MoscowInstitute of Geography, Russian Academy of Sciences, MoscowInstitute of Geography, Russian Academy of Sciences, MoscowInstitute of Geography, Russian Academy of Sciences, MoscowInfluence of snow cover, climate and glacier parameters on the cold-ice layer thickness and thermal regime in the ablation area of a polythermal glacier in Western Svalbard was investigated. Numerical modeling has demonstrated that a thickness of a cold layer in a polythermal glacier depends on a relation between the ablation on the surface and the freezing rate at the layer base. If the ablation rate is lower than that of the freezing, the layer thickness grows until the ablation and freezing rates become equal. Estimations show that in a case of slightly negative air temperatures on the glacier its cold-ice layer thickness increases when the snow cover thickness grows.https://ice-snow.igras.ru/jour/article/view/181mathematical modelingpolythermal glaciersnow coverthickness of cold layer |
| spellingShingle | A. V. Sosnovsky Yu. Ya. Macheret A. F. Glazovsky I. I. Lavrentiev Influence of snow cover on the thermal regime of a polythermal glacier in Western Spitsbergen Лëд и снег mathematical modeling polythermal glacier snow cover thickness of cold layer |
| title | Influence of snow cover on the thermal regime of a polythermal glacier in Western Spitsbergen |
| title_full | Influence of snow cover on the thermal regime of a polythermal glacier in Western Spitsbergen |
| title_fullStr | Influence of snow cover on the thermal regime of a polythermal glacier in Western Spitsbergen |
| title_full_unstemmed | Influence of snow cover on the thermal regime of a polythermal glacier in Western Spitsbergen |
| title_short | Influence of snow cover on the thermal regime of a polythermal glacier in Western Spitsbergen |
| title_sort | influence of snow cover on the thermal regime of a polythermal glacier in western spitsbergen |
| topic | mathematical modeling polythermal glacier snow cover thickness of cold layer |
| url | https://ice-snow.igras.ru/jour/article/view/181 |
| work_keys_str_mv | AT avsosnovsky influenceofsnowcoveronthethermalregimeofapolythermalglacierinwesternspitsbergen AT yuyamacheret influenceofsnowcoveronthethermalregimeofapolythermalglacierinwesternspitsbergen AT afglazovsky influenceofsnowcoveronthethermalregimeofapolythermalglacierinwesternspitsbergen AT iilavrentiev influenceofsnowcoveronthethermalregimeofapolythermalglacierinwesternspitsbergen |