Seasonal dynamics of snow ablation on selected glaciers in
central Spitsbergen derived from Sentinel-2 satellite images

J 2021

Seasonal dynamics of snow ablation on selected glaciers in central Spitsbergen derived from Sentinel-2 satellite images

KAVAN, Jan a Vincent HAAGMANS

Základní údaje

Originální název

Seasonal dynamics of snow ablation on selected glaciers in central Spitsbergen derived from Sentinel-2 satellite images

Autoři

KAVAN, Jan (203 Česká republika, garant, domácí) a Vincent HAAGMANS

Vydání

Journal of Glaciology, Cambridge University Press, 2021, 0022-1430

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10508 Physical geography

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 4.278

Kód RIV

RIV/00216224:14310/21:00119356

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1017/jog.2021.36

UT WoS

000695957300018

Klíčová slova anglicky

Glacier ablation phenomena; glacier mass balance; snow; wind-blown snow

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 7. 12. 2021 11:19, Mgr. Marie Šípková, DiS.

Anotace

V originále

The dynamics of seasonal snow ablation on six glaciers in central Spitsbergen (Dicksonland) were assessed by examining a set of Sentinel-2 satellite images covering the summer ablation season for the period 2016-19. All glaciers lost 80% or more of their surface snow cover during the studied ablation seasons. This bolsters the recently observed trend of local glacier thinning, even at higher altitudes. Snow ablation dynamics are highly dependent on the glaciers altitudes, their position relative to the prevailing wind direction and the exposure to insolation. The accumulation areas of the studied glaciers were delimited based on the overlap of the minimum extent of snow-covered areas in the four consecutive studied summer seasons. The high temporal and spatial resolutions of available images enabled a detailed description of the seasonal snow ablation dynamics. Moreover, an estimate of the average number of days with below threshold glacier snow cover was made. This study contributes to our understanding of recent processes and might further support the modelling of glacier melt and subsequent runoff.

Návaznosti

GA20-20240S, projekt VaV

Název: Dopady klimatické změny na tání sněhu a ledu v oblasti Antarktického poloostrova

Investor: Grantová agentura ČR, Dopady klimatické změny na tání sněhu a ledu v oblasti Antarktického poloostrova

MUNI/G/1540/2019, interní kód MU

Název: ARCTIC Centre for Human-to-Environment Oriented Studies: Impact of Climate Change and Human Activities in the Arctic (Akronym: ARCTOS MU)

Investor: Masarykova univerzita, ARCTIC Centre for Human-to-Environment Oriented Studies: Impact of Climate Change and Human Activities in the Arctic, INTERDISCIPLINARY - Mezioborové výzkumné projekty

Citovat

KAVAN, Jan a Vincent HAAGMANS. Seasonal dynamics of snow ablation on selected glaciers in central Spitsbergen derived from Sentinel-2 satellite images. Journal of Glaciology. Cambridge University Press, 2021, roč. 67, č. 265, s. 961-966. ISSN 0022-1430. Dostupné z: https://dx.doi.org/10.1017/jog.2021.36.

@article{1804578,
   author = {Kavan, Jan and Haagmans, Vincent},
   article_number = {265},
   doi = {http://dx.doi.org/10.1017/jog.2021.36},
   keywords = {Glacier ablation phenomena; glacier mass balance; snow; wind-blown snow},
   language = {eng},
   issn = {0022-1430},
   journal = {Journal of Glaciology},
   title = {Seasonal dynamics of snow ablation on selected glaciers in central Spitsbergen derived from Sentinel-2 satellite images},
   url = {https://doi.org/10.1017/jog.2021.36},
   volume = {67},
   year = {2021}
}

TY  - JOUR
ID  - 1804578
AU  - Kavan, Jan - Haagmans, Vincent
PY  - 2021
TI  - Seasonal dynamics of snow ablation on selected glaciers in central Spitsbergen derived from Sentinel-2 satellite images
JF  - Journal of Glaciology
VL  - 67
IS  - 265
SP  - 961-966
EP  - 961-966
PB  - Cambridge University Press
SN  - 00221430
KW  - Glacier ablation phenomena
KW  - glacier mass balance
KW  - snow
KW  - wind-blown snow
UR  - https://doi.org/10.1017/jog.2021.36
N2  - The dynamics of seasonal snow ablation on six glaciers in central Spitsbergen (Dicksonland) were assessed by examining a set of Sentinel-2 satellite images covering the summer ablation season for the period 2016-19. All glaciers lost 80% or more of their surface snow cover during the studied ablation seasons. This bolsters the recently observed trend of local glacier thinning, even at higher altitudes. Snow ablation dynamics are highly dependent on the glaciers altitudes, their position relative to the prevailing wind direction and the exposure to insolation. The accumulation areas of the studied glaciers were delimited based on the overlap of the minimum extent of snow-covered areas in the four consecutive studied summer seasons. The high temporal and spatial resolutions of available images enabled a detailed description of the seasonal snow ablation dynamics. Moreover, an estimate of the average number of days with below threshold glacier snow cover was made. This study contributes to our understanding of recent processes and might further support the modelling of glacier melt and subsequent runoff.
ER  -

KAVAN, Jan a Vincent HAAGMANS. Seasonal dynamics of snow ablation on selected glaciers in central Spitsbergen derived from Sentinel-2 satellite images. \textit{Journal of Glaciology}. Cambridge University Press, 2021, roč.~67, č.~265, s.~961-966. ISSN~0022-1430. Dostupné z: https://dx.doi.org/10.1017/jog.2021.36.

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