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Research Article

Slight change of glaciers in the Pamir over the period 2000–2017

, ORCID Icon, , &
Pages 13-24 | Received 11 Jul 2021, Accepted 07 Jan 2022, Published online: 22 Feb 2022

Figures & data

Figure 1. Location map of the study region in QTP and overview of the Pamir.

Figure 1. Location map of the study region in QTP and overview of the Pamir.

Figure 2. Manual delineation of clear glacier outlines: (a) false-color composite landsat image (bands 7, 2, 3 as RGB) and (b) Google Earth image.

Figure 2. Manual delineation of clear glacier outlines: (a) false-color composite landsat image (bands 7, 2, 3 as RGB) and (b) Google Earth image.

Figure 3. Manual delineation of debris-covered glacier outlines: (a) false-color composite Landsat image (bands 7, 2, 3 as RGB); (b) Google Earth image; (c) and (d) close-ups of the Malyy Tanymas Glacier tongue in Landsat and Google Earth images, respectively; (e) and (f) close-ups of another debris-covered glacier tongue in Landsat and Google Earth images, respectively.

Figure 3. Manual delineation of debris-covered glacier outlines: (a) false-color composite Landsat image (bands 7, 2, 3 as RGB); (b) Google Earth image; (c) and (d) close-ups of the Malyy Tanymas Glacier tongue in Landsat and Google Earth images, respectively; (e) and (f) close-ups of another debris-covered glacier tongue in Landsat and Google Earth images, respectively.

Table 1. Comparison with other glacier inventories of the Pamir

Figure 4. Examples of glacier outline delineation in 2000 and 2017: (a) and (b) glacier outlines in 2000 and 2017 for the same clear glaciers, respectively; (c) and (d) glacier outlines in 2000 and 2017 for a debris-covered glacier and a surging glacier, respectively.

Figure 4. Examples of glacier outline delineation in 2000 and 2017: (a) and (b) glacier outlines in 2000 and 2017 for the same clear glaciers, respectively; (c) and (d) glacier outlines in 2000 and 2017 for a debris-covered glacier and a surging glacier, respectively.

Figure 5. Map of glacier area change (a) and change rate (b) on a 0.25°×0.25° grid of the Pamir from 2000 to 2017.

Figure 5. Map of glacier area change (a) and change rate (b) on a 0.25°×0.25° grid of the Pamir from 2000 to 2017.

Figure 6. Comparison of glacier outlines used in the NM 18, GGI 18, RGI 6.0, and our 2000 inventory at 38.90° N, 72.45° E (false-color composite image, bands 7, 2, 3 as RGB for ETM+).

Figure 6. Comparison of glacier outlines used in the NM 18, GGI 18, RGI 6.0, and our 2000 inventory at 38.90° N, 72.45° E (false-color composite image, bands 7, 2, 3 as RGB for ETM+).
Supplemental material

Supplemental Material

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