Research output: Contribution to journal › Article › peer-review
Giant aufeis – unknown glaciation in North-Eastern Eurasia according to Landsat images 2013-2019. / Макарьева, Ольга Михайловна; Нестерова, Наталия Вадимовна; Шихов, Андрей Николаевич; Землянскова, Анастасия Александровна; Осташов, Андрей Алексеевич; Алексеев, Владимир Романович.
In: Remote Sensing, Vol. 14, No. 17, 4248, 09.2022.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Giant aufeis – unknown glaciation in North-Eastern Eurasia according to Landsat images 2013-2019
AU - Макарьева, Ольга Михайловна
AU - Нестерова, Наталия Вадимовна
AU - Шихов, Андрей Николаевич
AU - Землянскова, Анастасия Александровна
AU - Осташов, Андрей Алексеевич
AU - Алексеев, Владимир Романович
N1 - Publisher Copyright: © 2022 by the authors.
PY - 2022/9
Y1 - 2022/9
N2 - Based on the analysis of Landsat satellite images over the period of 2013–2019, the number (6683) and total area (4529 km2) of giant aufeis fields (area ≥ 0.1 km2) were estimated for the territory of North-Eastern Eurasia. The contribution of aufeis runoff to river streamflow in different seasons was calculated for 58 hydrological gauges (area 523–526,000 km2). The contribution of aufeis and glaciers to water balance is compared. The aufeis resources vary from 0.4 to 4.25 km3 (or 3.7–11 mm) for individual basins of large rivers. They are at least 10.6 km3 in total or 5 mm of water depth on average for the study area. Aufeis annual runoff varies from 0.3 to 29 mm (0.1–22%, average 3.8%), with the share in winter runoff amount about 6–712% (average 112%) and the spring freshet 0.2–43% (average 7.1%). In general, the aufeis runoff exceeds the glacial runoff. The dynamics of aufeis formation are directly related to winter runoff, whose changes are observed in different parts of the cryosphere. The presented results are relevant for studying the impact of climate change on the hydrological cycle and its components in the permafrost regions of the Northern Hemisphere.
AB - Based on the analysis of Landsat satellite images over the period of 2013–2019, the number (6683) and total area (4529 km2) of giant aufeis fields (area ≥ 0.1 km2) were estimated for the territory of North-Eastern Eurasia. The contribution of aufeis runoff to river streamflow in different seasons was calculated for 58 hydrological gauges (area 523–526,000 km2). The contribution of aufeis and glaciers to water balance is compared. The aufeis resources vary from 0.4 to 4.25 km3 (or 3.7–11 mm) for individual basins of large rivers. They are at least 10.6 km3 in total or 5 mm of water depth on average for the study area. Aufeis annual runoff varies from 0.3 to 29 mm (0.1–22%, average 3.8%), with the share in winter runoff amount about 6–712% (average 112%) and the spring freshet 0.2–43% (average 7.1%). In general, the aufeis runoff exceeds the glacial runoff. The dynamics of aufeis formation are directly related to winter runoff, whose changes are observed in different parts of the cryosphere. The presented results are relevant for studying the impact of climate change on the hydrological cycle and its components in the permafrost regions of the Northern Hemisphere.
KW - North-East of Russia
KW - aufeis
KW - aufeis area dynamic
KW - aufeis runoff
KW - large permafrost rivers
KW - water balance
UR - https://www.mendeley.com/catalogue/2c4fa051-ed31-367c-96ab-9b3caca0512a/
UR - http://www.scopus.com/inward/record.url?scp=85137857100&partnerID=8YFLogxK
U2 - 10.3390/rs14174248
DO - 10.3390/rs14174248
M3 - Article
VL - 14
JO - Remote Sensing
JF - Remote Sensing
SN - 2072-4292
IS - 17
M1 - 4248
ER -
ID: 96872995