Fifty Years of Tidewater Glacier Surface Elevation and Retreat
Dynamics along the South-East Coast of Spitsbergen (Svalbard
Archipelago)

J 2022

Fifty Years of Tidewater Glacier Surface Elevation and Retreat Dynamics along the South-East Coast of Spitsbergen (Svalbard Archipelago)

KAVAN, Jan; Guy D. TALLENTIRE; Mihail DEMIDIONOV; Justyna DUDEK; Mateusz C. STRZELECKI et al.

Základní údaje

Originální název

Fifty Years of Tidewater Glacier Surface Elevation and Retreat Dynamics along the South-East Coast of Spitsbergen (Svalbard Archipelago)

Autoři

KAVAN, Jan; Guy D. TALLENTIRE; Mihail DEMIDIONOV; Justyna DUDEK a Mateusz C. STRZELECKI

Vydání

Remote Sensing, MDPI, 2022, 2072-4292

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10508 Physical geography

Stát vydavatele

Švýcarsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 5.000

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/22:00125583

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

tidewater glaciers; surface elevation changes; glacier geometry; Svalbard

Štítky

14315030, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 25. 3. 2022 14:04, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

Tidewater glaciers on the east coast of Svalbard were examined for surface elevation changes and retreat rate. An archival digital elevation model (DEM) from 1970 (generated from aerial images by the Norwegian Polar Institute) in combination with recent ArcticDEM were used to compare the surface elevation changes of eleven glaciers. This approach was complemented by a retreat rate estimation based on the analysis of Landsat and Sentinel-2 images. In total, four of the 11 tidewater glaciers became land-based due to the retreat of their termini. The remaining tidewater glaciers retreated at an average annual retreat rate of 48 m year(-1), and with range between 10-150 m year(-1). All the glaciers studied experienced thinning in their frontal zones with maximum surface elevation loss exceeding 100 m in the ablation areas of three glaciers. In contrast to the massive retreat and thinning of the frontal zones, a minor increase in ice thickness was recorded in some accumulation areas of the glaciers, exceeding 10 m on three glaciers. The change in glacier geometry suggests an important shift in glacier dynamics over the last 50 years, which very likely reflects the overall trend of increasing air temperatures. Such changes in glacier geometry are common at surging glaciers in their quiescent phase. Surging was detected on two glaciers studied, and was documented by the glacier front readvance and massive surface thinning in high elevated areas.

Návaznosti

MUNI/A/1570/2020, interní kód MU

Název: Geografický výzkum dynamiky přírodních a společenských prostorových procesů (Akronym: GEODYN)

Investor: Masarykova univerzita, Geografický výzkum dynamiky přírodních a společenských prostorových procesů

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; Guy D. TALLENTIRE; Mihail DEMIDIONOV; Justyna DUDEK a Mateusz C. STRZELECKI. Fifty Years of Tidewater Glacier Surface Elevation and Retreat Dynamics along the South-East Coast of Spitsbergen (Svalbard Archipelago). Remote Sensing. MDPI, 2022, roč. 14, č. 2, s. 1-16. ISSN 2072-4292. Dostupné z: https://doi.org/10.3390/rs14020354.

@article{1843043,
   author = {Kavan, Jan and Tallentire, Guy D. and Demidionov, Mihail and Dudek, Justyna and Strzelecki, Mateusz C.},
   article_number = {2},
   doi = {https://doi.org/10.3390/rs14020354},
   keywords = {tidewater glaciers; surface elevation changes; glacier geometry; Svalbard},
   language = {eng},
   issn = {2072-4292},
   journal = {Remote Sensing},
   title = {Fifty Years of Tidewater Glacier Surface Elevation and Retreat Dynamics along the South-East Coast of Spitsbergen (Svalbard Archipelago)},
   url = {https://www.mdpi.com/2072-4292/14/2/354},
   volume = {14},
   year = {2022}
}

TY  - JOUR
ID  - 1843043
AU  - Kavan, Jan - Tallentire, Guy D. - Demidionov, Mihail - Dudek, Justyna - Strzelecki, Mateusz C.
PY  - 2022
TI  - Fifty Years of Tidewater Glacier Surface Elevation and Retreat Dynamics along the South-East Coast of Spitsbergen (Svalbard Archipelago)
JF  - Remote Sensing
VL  - 14
IS  - 2
SP  - 1-16
EP  - 1-16
PB  - MDPI
SN  - 20724292
KW  - tidewater glaciers
KW  - surface elevation changes
KW  - glacier geometry
KW  - Svalbard
UR  - https://www.mdpi.com/2072-4292/14/2/354
N2  - Tidewater glaciers on the east coast of Svalbard were examined for surface elevation changes and retreat rate. An archival digital elevation model (DEM) from 1970 (generated from aerial images by the Norwegian Polar Institute) in combination with recent ArcticDEM were used to compare the surface elevation changes of eleven glaciers. This approach was complemented by a retreat rate estimation based on the analysis of Landsat and Sentinel-2 images. In total, four of the 11 tidewater glaciers became land-based due to the retreat of their termini. The remaining tidewater glaciers retreated at an average annual retreat rate of 48 m year(-1), and with range between 10-150 m year(-1). All the glaciers studied experienced thinning in their frontal zones with maximum surface elevation loss exceeding 100 m in the ablation areas of three glaciers. In contrast to the massive retreat and thinning of the frontal zones, a minor increase in ice thickness was recorded in some accumulation areas of the glaciers, exceeding 10 m on three glaciers. The change in glacier geometry suggests an important shift in glacier dynamics over the last 50 years, which very likely reflects the overall trend of increasing air temperatures. Such changes in glacier geometry are common at surging glaciers in their quiescent phase. Surging was detected on two glaciers studied, and was documented by the glacier front readvance and massive surface thinning in high elevated areas.
ER  -

KAVAN, Jan; Guy D. TALLENTIRE; Mihail DEMIDIONOV; Justyna DUDEK a Mateusz C. STRZELECKI. Fifty Years of Tidewater Glacier Surface Elevation and Retreat Dynamics along the South-East Coast of Spitsbergen (Svalbard Archipelago). \textit{Remote Sensing}. MDPI, 2022, roč.~14, č.~2, s.~1-16. ISSN~2072-4292. Dostupné z: https://doi.org/10.3390/rs14020354.

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