Dynamics of equilibrium line altitude in glaciers of the Monte Rosa massif in the Alps derived from Sentinel-2 satellite images
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F24%3A10491586" target="_blank" >RIV/00216208:11310/24:10491586 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=9j0XcHhziB" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=9j0XcHhziB</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14712/23361980.2024.17" target="_blank" >10.14712/23361980.2024.17</a>
Alternative languages
Result language
angličtina
Original language name
Dynamics of equilibrium line altitude in glaciers of the Monte Rosa massif in the Alps derived from Sentinel-2 satellite images
Original language description
The equilibrium line altitude (ELA) is an immediate indicator of the mass balance of glaciers. The evolution of the ELA of four major glaciers in the Monte Rosa (European Alps) massif was investigated in this study. We used Sentinel-2 satellite images to derive the end-of-summer snowline altitude (SLA) as an approximation of ELA considering the fluctuations in the snowline at the end of the ablation season (from August to mid-October in 2016-2023). SLA was estimated as a percentile of the histogram of the DEM of each glacier with the applied snow-mask, based on the normalised difference snow index (NDSI). ELA was determined as the maximum snowline elevation reached in the season. We found the mean ELA for the studied period as 3560, 3230, 3430 and 3570 m above the sea level for Gornergletscher, Belvedere Glacier, Grenzgletscher, and Lys Glacier respectively. These differences are likely due to the variation in slope orientation and amount of snow accumulation. An increase in ELA was found for all the glaciers in the studied period amounting to 22.7, 8.3, 33.1 and 27.0 m/y respectively. The pattern of temporal behaviour was similar for all the glaciers, although we expected a different behaviour of the Belvedere Glacier, which is characterized by various local effects, such as frequent avalanching and rough topography.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10508 - Physical geography
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Universitatis Carolinae. Geographica
ISSN
0300-5402
e-ISSN
2336-1980
Volume of the periodical
59
Issue of the periodical within the volume
2
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
11
Pages from-to
229-239
UT code for WoS article
001389003400004
EID of the result in the Scopus database
2-s2.0-85213338193