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Surge-type Uisu glacier and its undisturbed forefield relief, Eastern Pamir, Tajikistan Cover

Surge-type Uisu glacier and its undisturbed forefield relief, Eastern Pamir, Tajikistan

Miscellanea Geographica
Volume 26 (2022): Issue 4 (October 2022)
By:
Open Access
|Oct 2022

Figures & Tables

Figure 1

Location of the study area on continent (a), region (b), and valley (c). The crosshair, and the geographical coordinates assigned to it, indicate the central part of the Uisu glacier system, numbers 44–68 identify the tributary glaciers according to the USSR glacier inventory (Katalog Lednikov SSSR 1973), the white frame covers the area of detailed geomorphological mapping, the elevations at the spots marked with black dots are expressed in metres above sea levelSource: own study based on the satellite imagery provided by Google Maps: Image, © 2022 TerraMetrics
Location of the study area on continent (a), region (b), and valley (c). The crosshair, and the geographical coordinates assigned to it, indicate the central part of the Uisu glacier system, numbers 44–68 identify the tributary glaciers according to the USSR glacier inventory (Katalog Lednikov SSSR 1973), the white frame covers the area of detailed geomorphological mapping, the elevations at the spots marked with black dots are expressed in metres above sea levelSource: own study based on the satellite imagery provided by Google Maps: Image, © 2022 TerraMetrics

Figure 2

The Uisu glacier system in: a) 1993, and b) 2019. Numbers 45 and 47 stand for two tributary glaciers according to the USSR glacier inventory (for explanation, see text)Source: own study based on the Landsat satellite imagery provided by the USGS Earth Explorer
The Uisu glacier system in: a) 1993, and b) 2019. Numbers 45 and 47 stand for two tributary glaciers according to the USSR glacier inventory (for explanation, see text)Source: own study based on the Landsat satellite imagery provided by the USGS Earth Explorer

Figure 3

Surface area of the Uisu glacier system in 1977–2019. Light grey bars: total area, white bars: area of the part without supraglacial cover, dark grey bars: area of supraglacial coverSource: own study
Surface area of the Uisu glacier system in 1977–2019. Light grey bars: total area, white bars: area of the part without supraglacial cover, dark grey bars: area of supraglacial coverSource: own study

Figure 4

Surface velocity along the central line of the tongue of the Uisu glacier and Glacier No. 47 in the 1993–2019 periodSource: own study
Surface velocity along the central line of the tongue of the Uisu glacier and Glacier No. 47 in the 1993–2019 periodSource: own study

Figure 5

Surface area of the supraglacial lakes in 1993–2019Source: own study
Surface area of the supraglacial lakes in 1993–2019Source: own study

Figure 6

Geomorphological map of Uisu glacier forefieldSource: own study
Geomorphological map of Uisu glacier forefieldSource: own study

Figure 7

Terminal zone of Uisu glacier: a) glacier front, b) supraglacial moraine with meltwater lakes and kettle holes, c) supraglacial material and outcrop of glacial ice with oblique foliation – view from the northern side of the valleySource: own study; aerial photos: Marcin Zegarek (a and b), terrestrial photo: Bogdan Gądek (c)
Terminal zone of Uisu glacier: a) glacier front, b) supraglacial moraine with meltwater lakes and kettle holes, c) supraglacial material and outcrop of glacial ice with oblique foliation – view from the northern side of the valleySource: own study; aerial photos: Marcin Zegarek (a and b), terrestrial photo: Bogdan Gądek (c)

Figure 8

Fluvioglacial forefield of Uisu glacier: a) multi-channel bed of the Koksoy river, b) terrace in front of the glacier terminus. T1 – terrace 1, T2 – terrace 2Source: own study; aerial photos: Marcin Zegarek
Fluvioglacial forefield of Uisu glacier: a) multi-channel bed of the Koksoy river, b) terrace in front of the glacier terminus. T1 – terrace 1, T2 – terrace 2Source: own study; aerial photos: Marcin Zegarek

Figure 9

Alluvial fans at the mouths of valleys located on the northern side of the terminal zone of the Uisu glacier: a) mouth of the eastern valley, b) mouth of the western valley (see Fig. 6). AF – alluvial fan, 1–4 old alluvial levels, RGm – rock glacier (rock-glacierised moraine), Gl – lateral edge of Uisu glacierSource: own study; aerial photo: Marcin Zegarek (a), terrestrial photo: Bogdan Gądek (b)
Alluvial fans at the mouths of valleys located on the northern side of the terminal zone of the Uisu glacier: a) mouth of the eastern valley, b) mouth of the western valley (see Fig. 6). AF – alluvial fan, 1–4 old alluvial levels, RGm – rock glacier (rock-glacierised moraine), Gl – lateral edge of Uisu glacierSource: own study; aerial photo: Marcin Zegarek (a), terrestrial photo: Bogdan Gądek (b)

Figure 10

Geomorphology of the terminal zone of the Uisu glacier: a) slopes on the northern side; b) slopes on the southern side and forefield (Gl – front of the Uisu glacier, RGm – rock-glacierised moraine, RG – periglacial rock glacier, S – talus slope with solifluction lobes, AF – alluvial fan, 2–4 – old alluvial levels, LM – lateral moraine, T2 – fluvioglacial terrace 2; c) sorted polygons on the surface of terrace T2 (Fig. 10b)Source: own study; photos: Bogdan Gądek
Geomorphology of the terminal zone of the Uisu glacier: a) slopes on the northern side; b) slopes on the southern side and forefield (Gl – front of the Uisu glacier, RGm – rock-glacierised moraine, RG – periglacial rock glacier, S – talus slope with solifluction lobes, AF – alluvial fan, 2–4 – old alluvial levels, LM – lateral moraine, T2 – fluvioglacial terrace 2; c) sorted polygons on the surface of terrace T2 (Fig. 10b)Source: own study; photos: Bogdan Gądek

List of Landsat satellite scenes used_ MSS: MultiSpectral Scanner (Landsat 1), TM: Thematic Mapper (Landsat 5), ETM+: Enhanced Thematic Mapper + (Landsat 7), and OLI: Operational Land Imager (Landsat 8)_ “Date” shows day_month, and “P-R” shows path-row_ Source: USGS Earth Explorer

No.SensorDateYearP-R
1MSS22.081977162-033
2TM30.091993151-033
3TM28.091998151-033
4ETM+28.092001151-033
5ETM+15.092008151-033
6OLI05.092013151-033
7OLI15.082017151-033
8OLI22.092019151-033
DOI: https://doi.org/10.2478/mgrsd-2022-0009 | Journal eISSN: 2084-6118 | Journal ISSN: 0867-6046
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Language: English
Page range: 227 - 236
Submitted on: Apr 20, 2022
Accepted on: May 23, 2022
Published on: Oct 31, 2022
Published by: University of Warsaw
In partnership with: Paradigm Publishing Services
Publication frequency: 4 times per year
Keywords:
Glacier surge,
glacier forefield,
geomorphological mapping,
climate warming,
arid region,
Eastern Pamir
Related subjects:
Geosciences,
Geography,
Geosciences, other

© 2022 Bogdan Gądek, Elżbieta Rojan, Małgorzata Suska-Malawska, published by University of Warsaw
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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