General Characteristics of Glaciation in the Kyrgyz Republic

General Characteristics of Glaciation

According to satellite images from "Landsat-8" for the years 2013-2016, there are a total of 9,959 glaciers in the territory of the Kyrgyz Republic, covering an area of 6,683.9 km², including: 6,227 glaciers larger than 0.1 km², with a total area of 6,494.0 km², and 3,732 glaciers smaller than 0.1 km², covering an area of 189.9 km². According to the Catalog of Glaciers of the USSR (1940s-1970s), there were 8,164 glaciers in the territory of the Kyrgyz Republic, covering a total area of 7,944.2 km², including: 6,719 glaciers larger than 0.1 km², with a total area of 7,866.6 km², and 1,445 glaciers smaller than 0.1 km², covering an area of 77.6 km². Thus, over a period of approximately 70 years, the following changes in the overall glaciation of the Kyrgyz Republic have occurred. The area of glaciation in Kyrgyzstan has decreased by 16%, the area of large glaciers has decreased by 17%, while the area of small glaciers has increased by two and a half times (by 245%). This is associated with the overall degradation of glaciation, where the degradation of large glaciers leads not only to a reduction in their areas but also to their fragmentation into separate parts that function as independent small glaciers. Additionally, in certain parts of the Catalog of Glaciers of the USSR, glaciers smaller than 0.1 km² were not accounted for at all, while in the current catalog, all glaciers larger than 0.01 km² are included. The total number of glaciers has increased by 22%. This is due to an increase in the number of small glaciers (smaller than 0.1 km²) by two and a half times (by 258%), while the number of large glaciers (larger than 0.1 km²) has decreased by 7.5%. Information on the distribution of glaciers in the main river basins of the Kyrgyz Republic is presented in Diagram 1 and Table 1.


As seen from the diagram, almost half of the glaciation in the Republic is accounted for by the Tarim River basin (45%), and one-third by the Syr Darya River basin (30%). The reduction of glaciation over the considered 70-year period in the main river basins of Kyrgyzstan is presented in Diagram 2. The reduction in the area of the main part of the glaciers in Kyrgyzstan across the main basins is within 13-17%. Exceptions include: the Talas River basin, where the area reduction reaches 47%; the Chu River basin – 28%; the Amu Darya River basin – 10%; the Karadar'ya River basin – glaciation has practically not changed; and the basin of Lake Chatyr-Kul, where an area increase of 33% is observed. The data for the basin of Lake Chatyr-Kul can be considered non-representative, as glaciation in this basin is virtually absent (9 glaciers with a total area of 3.2 km²).

In total, in the Talas River basin there are 237 glaciers with a total area of 58.1 km², including: 91 glaciers larger than 0.1 km², with a total area of 51.6 km², and 146 glaciers smaller than 0.1 km², with a total area of 6.5 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 1), there were 202 glaciers in the Talas River basin, covering a total area of 120.7 km², including: 162 glaciers larger than 0.1 km², with a total area of 117.3 km², and 40 glaciers smaller than 0.1 km², with a total area of 3.4 km².
In total, in the basins of the Assa and Talas rivers there are 304 glaciers with a total area of 85.0 km², including: 130 glaciers larger than 0.1 km², with a total area of 77.2 km², and 174 glaciers smaller than 0.1 km², with a total area of 7.8 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 1), there were 261 glaciers in the basins of the Assa and Talas rivers, covering a total area of 160.1 km², including: 200 glaciers larger than 0.1 km², with a total area of 155.4 km², and 61 glaciers smaller than 0.1 km², with a total area of 4.7 km².

In total, in the basins of the left tributaries of the Chu River below the mouth of the Komorchik River there are 572 glaciers with a total area of 259.2 km²: including 334 glaciers larger than 0.1 km², with a total area of 247.3 km², and 238 glaciers smaller than 0.1 km², with a total area of 11.9 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 2), there were 446 glaciers in the basins of the left tributaries of the Chu River below the mouth of the Komorchik River, covering a total area of 355.6 km², including: 416 glaciers larger than 0.1 km², with a total area of 353.9 km², and 30 glaciers smaller than 0.1 km², with a total area of 1.7 km².

In total, in the basins of the upper reaches of the Chu River there are 260 glaciers with a total area of 73.5 km²: including 139 glaciers larger than 0.1 km², with a total area of 68.2 km², and 121 glaciers smaller than 0.1 km², with a total area of 5.3 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 3), there were 347 glaciers in the basins of the upper reaches of the Chu River, covering a total area of 106.5 km², including: 204 glaciers larger than 0.1 km², with a total area of 103.6 km², and 143 glaciers smaller than 0.1 km², with a total area of 2.9 km².

In total, in the basins of the right tributaries of the Chu River below the Baom gorge there are 193 glaciers with a total area of 108.0 km², including: 110 glaciers larger than 0.1 km², with a total area of 104.4 km², and 83 glaciers smaller than 0.1 km², with a total area of 3.6 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 4), there were 182 glaciers in the basins of the right tributaries of the Chu River below the Baom gorge, covering a total area of 152.3 km², including: 135 glaciers larger than 0.1 km², with a total area of 149.9 km², and 47 glaciers smaller than 0.1 km², with a total area of 2.4 km².

In total, in the area of glaciation on the northern slope of the Terskey Alatau range there are 777 glaciers with a total area of 459.5 km², including: 499 glaciers larger than 0.1 km², with a total area of 447.5 km², and 278 glaciers smaller than 0.1 km², with a total area of 12.0 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 5), there were 675 glaciers in the area of glaciation on the northern slope of the Terskey Alatau range, covering a total area of 510.1 km², including: 481 glaciers larger than 0.1 km², with a total area of 496.7 km², and 194 glaciers smaller than 0.1 km², with a total area of 13.4 km².

In total, in the area of glaciation on the southern slope of the Kungey Alatau range there are 180 glaciers with a total area of 101.3 km², including: 136 glaciers larger than 0.1 km², with a total area of 98.9 km², and 44 glaciers smaller than 0.1 km², with a total area of 2.4 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 5), there were 159 glaciers in the area of glaciation on the southern slope of the Kungey Alatau range, covering a total area of 140.3 km², including: 150 glaciers larger than 0.1 km², with a total area of 139.7 km², and 9 glaciers smaller than 0.1 km², with a total area of 0.6 km².

In total, in the Issyk-Kul Lake basin there are 957 glaciers with a total area of 560.8 km², including: 635 glaciers larger than 0.1 km², with a total area of 546.4 km², and 322 glaciers smaller than 0.1 km², with a total area of 14.4 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 5), there were 834 glaciers in the Issyk-Kul Lake basin, covering a total area of 650.4 km², including: 631 glaciers larger than 0.1 km², with a total area of 636.4 km², and 203 glaciers smaller than 0.1 km², with a total area of 14.0 km².

In total, in the Baralbas River basin there are 91 glaciers with a total area of 45.5 km², including: 58 glaciers larger than 0.1 km², with a total area of 43.5 km², and 33 glaciers smaller than 0.1 km², with a total area of 2.0 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 6), there were 72 glaciers in the Baralbas River basin, covering a total area of 64.3 km², including: 62 glaciers larger than 0.1 km², with a total area of 63.6 km², and 10 glaciers smaller than 0.1 km², with a total area of 0.7 km².

In total, in the Akshiyrak River basin there are 404 glaciers with a total area of 307.3 km², including: 240 glaciers larger than 0.1 km², with a total area of 300.0 km², and 164 glaciers smaller than 0.1 km², with a total area of 7.3 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 6), there were 275 glaciers in the Akshiyrak River basin, covering a total area of 408.9 km², including: 242 glaciers larger than 0.1 km², with a total area of 406.8 km², and 33 glaciers smaller than 0.1 km², with a total area of 2.1 km².

In total, in the Kuilu River basin there are 214 glaciers with a total area of 188.8 km², including: 141 glaciers larger than 0.1 km², with a total area of 185.6 km², and 73 glaciers smaller than 0.1 km², with a total area of 3.2 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 7), there were 150 glaciers in the Kuilu River basin, covering a total area of 216.2 km².

In total, in the basins of the M. Taldy-Su, B. Taldy-Su, Kainy-Bulak, and Terakty rivers there are 81 glaciers with a total area of 72.6 km², including: 55 glaciers larger than 0.1 km², with a total area of 71.3 km², and 26 glaciers smaller than 0.1 km², with a total area of 1.3 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 7), there were 52 glaciers in the basins of the M. Taldy-Su, B. Taldy-Su, Kainy-Bulak, and Terakty rivers, covering a total area of 77.2 km².

In total, in the basins of the right tributaries of the Sary-Djaz River between the mouths of the Ak-Shiyrak and Kuilu rivers (including the Kuilu River basin) there are 577 glaciers with a total area of 558.4 km², including: 389 glaciers larger than 0.1 km², with a total area of 549.0 km², and 188 glaciers smaller than 0.1 km², with a total area of 9.4 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 7), there were 394 glaciers in the basins of the right tributaries of the Sary-Djaz River between the mouths of the Ak-Shiyrak and Kuilu rivers (including the Kuilu River basin), covering a total area of 635.8 km².

In total, in the basins of the upper reaches of the Sary-Djaz River from the mouth of the Kuilu River and above there are 291 glaciers with a total area of 308.4 km², including: 183 glaciers larger than 0.1 km², with a total area of 303.2 km², and 108 glaciers smaller than 0.1 km², with a total area of 5.2 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 8), there were 257 glaciers in the basins of the upper reaches of the Sary-Djaz River from the mouth of the Kuilu River and above, covering a total area of 368.2 km², including: 212 glaciers larger than 0.1 km², with a total area of 366.2 km², and 45 glaciers smaller than 0.1 km², with a total area of 2.0 km².

In total, in the basin of the North Inylchek Glacier there are 100 glaciers with a total area of 190.3 km², including: 64 glaciers larger than 0.1 km², with a total area of 188.1 km², and 36 glaciers smaller than 0.1 km², with a total area of 2.2 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 8), there was 101 glacier in the basin of the North Inylchek Glacier, covering a total area of 226.5 km², including: 67 glaciers larger than 0.1 km², with a total area of 224.4 km², and 34 glaciers smaller than 0.1 km², with a total area of 2.1 km².

In total, in the basin of the South Inylchek Glacier there are 143 glaciers with a total area of 521.5 km², including: 132 glaciers larger than 0.1 km², with a total area of 520.6 km², and 11 glaciers smaller than 0.1 km², with a total area of 0.9 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 8), there were 143 glaciers in the basin of the South Inylchek Glacier, covering a total area of 632.8 km², including: 135 glaciers larger than 0.1 km², with a total area of 632.2 km², and 8 glaciers smaller than 0.1 km², with a total area of 0.6 km².

In total, in the basin of the Inylchek River there are 321 glaciers with a total area of 796.1 km², including: 251 glaciers larger than 0.1 km², with a total area of 791.6 km², and 70 glaciers smaller than 0.1 km², with a total area of 4.5 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 8), there were 302 glaciers in the basin of the Inylchek River, covering a total area of 946.1 km², including: 255 glaciers larger than 0.1 km², with a total area of 943.1 km², and 47 glaciers smaller than 0.1 km², with a total area of 3.0 km².

In total, in the basin of the Kainy River there are 152 glaciers with a total area of 153.8 km², including: 106 glaciers larger than 0.1 km², with a total area of 151.1 km², and 46 glaciers smaller than 0.1 km², with a total area of 2.7 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 9), there were 124 glaciers in the basin of the Kainy River, covering a total area of 151.3 km², including: 92 glaciers larger than 0.1 km², with a total area of 149.4 km², and 32 glaciers smaller than 0.1 km², with a total area of 1.9 km².

In total, in the basins of the Kuyukap River and the tributaries of the Sary-Djaz River there are 108 glaciers with a total area of 135.0 km², including: 82 glaciers larger than 0.1 km², with a total area of 133.3 km², and 26 glaciers smaller than 0.1 km², with a total area of 1.7 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 9), there were 78 glaciers in the basins of the Kuyukap River and the tributaries of the Sary-Djaz River, covering a total area of 107.3 km², including: 70 glaciers larger than 0.1 km², with a total area of 107.0 km², and 8 glaciers smaller than 0.1 km², with a total area of 0.3 km².

In total, in the basins of the left tributaries of the Sary-Djaz River (the Inylchek, Kainy, and Kuyukap rivers) there are 581 glaciers with a total area of 1084.9 km², including: 439 glaciers larger than 0.1 km², with a total area of 1076.0 km², and 142 glaciers smaller than 0.1 km², with a total area of 8.9 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 9), there were 504 glaciers in the basins of the left tributaries of the Sary-Djaz River (the Inylchek, Kainy, and Kuyukap rivers), covering a total area of 1204.7 km², including: 417 glaciers larger than 0.1 km², with a total area of 1199.5 km², and 87 glaciers smaller than 0.1 km², with a total area of 5.2 km².

In total, in the Kokshaal River basin there are 280 glaciers with a total area of 217.9 km², including: 198 glaciers larger than 0.1 km², with a total area of 213.1 km², and 82 glaciers smaller than 0.1 km², with a total area of 4.8 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 9), there were 231 glaciers in the Kokshaal River basin, covering a total area of 287.7 km², including: 138 glaciers larger than 0.1 km², with a total area of 281.2 km², and 93 glaciers smaller than 0.1 km², with a total area of 6.5 km². The basin of the Chaty-Terek River (the Chon-Uzengi-Kuush, Kokshaal rivers) - Northern slope of the range.

In total, in the Chon-Uzengi-Kuush River basin there are 418 glaciers with a total area of 357.6 km², including: 279 glaciers larger than 0.1 km², with a total area of 349.9 km², and 139 glaciers smaller than 0.1 km², with a total area of 7.7 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 10), there were 335 glaciers in the Chon-Uzengi-Kuush River basin, covering a total area of 400.6 km², including: 234 glaciers larger than 0.1 km², with a total area of 393.5 km², and 101 glaciers smaller than 0.1 km², with a total area of 7.1 km².

In total, in the Chatyr-Kul Lake basin there are 7 glaciers with a total area of 2.4 km², including: 5 glaciers larger than 0.1 km², with a total area of 2.3 km², and 2 glaciers smaller than 0.1 km², with a total area of 0.1 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 2, Part 11), there were 9 glaciers in the Chatyr-Kul Lake basin, covering a total area of 3.2 km², including: 3 glaciers larger than 0.1 km², with a total area of 2.8 km², and 6 glaciers smaller than 0.1 km², with a total area of 0.4 km².

In total, in the Chatkal River basin there are 211 glaciers with a total area of 42.3 km², including: 110 glaciers larger than 0.1 km², with a total area of 36.7 km², and 101 glaciers smaller than 0.1 km², with a total area of 5.6 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 2), there were 124 glaciers in the Chatkal River basin, covering a total area of 51.2 km², including: 119 glaciers larger than 0.1 km², with a total area of 51.0 km², and 5 glaciers smaller than 0.1 km², with a total area of 0.2 km².

In total, in the basins of the right tributaries of the Naryn River below the mouth of the Kökömerena River there are 537 glaciers with a total area of 117.9 km², including: 291 glaciers larger than 0.1 km², with a total area of 104.1 km², and 246 glaciers smaller than 0.1 km², with a total area of 13.8 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 3), there were 370 glaciers in the basins of the right tributaries of the Naryn River below the mouth of the Kökömerena River, covering a total area of 142.0 km², including: 297 glaciers larger than 0.1 km², with a total area of 137.3 km², and 73 glaciers smaller than 0.1 km², with a total area of 4.7 km².

In total, in the basins of the right tributaries of the Naryn River from the mouth of the Kökömerena River to the mouth of the Small Naryn River there are 551 glaciers with a total area of 300.2 km², including: 361 glaciers larger than 0.1 km², with a total area of 291.0 km², and 190 glaciers smaller than 0.1 km², with a total area of 9.2 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 4), there were 520 glaciers in the basins of the right tributaries of the Naryn River from the mouth of the Kökömerena River to the mouth of the Small Naryn River, covering a total area of 355.8 km², including: 451 glaciers larger than 0.1 km², with a total area of 352.8 km², and 69 glaciers smaller than 0.1 km², with a total area of 3.0 km².

In total, in the basins of the left tributaries of the Naryn River between the mouths of the Alys and Kashkasu streams there are 62 glaciers with a total area of 14.0 km², including: 40 glaciers larger than 0.1 km², with a total area of 13.0 km², and 22 glaciers smaller than 0.1 km², with a total area of 1.0 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 5), there were 54 glaciers in the basins of the left tributaries of the Naryn River between the mouths of the Alys and Kashkasu streams, covering a total area of 20.9 km², including: 49 glaciers larger than 0.1 km², with a total area of 20.7 km², and 5 glaciers smaller than 0.1 km², with a total area of 0.2 km².

In total, in the Ulan River basin there are 66 glaciers with a total area of 14.0 km², including: 37 glaciers larger than 0.1 km², with a total area of 12.6 km², and 29 glaciers smaller than 0.1 km², with a total area of 1.4 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 5), there were 64 glaciers in the Ulan River basin, covering a total area of 19.8 km², including: 51 glaciers larger than 0.1 km², with a total area of 19.2 km², and 13 glaciers smaller than 0.1 km², with a total area of 0.6 km².

In total, in the Karakol River basin there are 150 glaciers with a total area of 93.1 km², including: 98 glaciers larger than 0.1 km², with a total area of 90.4 km², and 52 glaciers smaller than 0.1 km², with a total area of 2.7 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 5), there were 161 glaciers in the Karakol River basin, covering a total area of 100.8 km², including: 98 glaciers larger than 0.1 km², with a total area of 98.1 km², and 63 glaciers smaller than 0.1 km², with a total area of 2.7 km².

In total, in the Chakyirkorum River basin there are 103 glaciers with a total area of 54.1 km², including: 65 glaciers larger than 0.1 km², with a total area of 52.4 km², and 38 glaciers smaller than 0.1 km², with a total area of 1.7 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 5), there were 62 glaciers in the Chakyirkorum River basin, covering a total area of 55.0 km², including: 52 glaciers larger than 0.1 km², with a total area of 54.5 km², and 10 glaciers smaller than 0.1 km², with a total area of 0.5 km².

In total, in the Karasai River basin there are 88 glaciers with a total area of 101.3 km², including: 57 glaciers larger than 0.1 km², with a total area of 99.7 km², and 31 glaciers smaller than 0.1 km², with a total area of 1.6 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 5), there were 80 glaciers in the Karasai River basin, covering a total area of 109.7 km², including: 60 glaciers larger than 0.1 km², with a total area of 108.9 km², and 20 glaciers smaller than 0.1 km², with a total area of 0.8 km².

In total, in the Taragay River basin there are 194 glaciers with a total area of 213.4 km², including: 133 glaciers larger than 0.1 km², with a total area of 210.7 km², and 61 glaciers smaller than 0.1 km², with a total area of 2.7 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 5), there were 168 glaciers in the Taragay River basin, covering a total area of 270.6 km², including: 151 glaciers larger than 0.1 km², with a total area of 269.8 km², and 17 glaciers smaller than 0.1 km², with a total area of 0.8 km².

In total, in the basins of the right and left tributaries of the upper reaches of the Naryn River there are 791 glaciers with a total area of 511.4 km², including: 480 glaciers larger than 0.1 km², with a total area of 498.0 km², and 281 glaciers smaller than 0.1 km², with a total area of 13.4 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 5), there were 715 glaciers in the basins of the right and left tributaries of the upper reaches of the Naryn River, covering a total area of 618.6 km², including: 563 glaciers larger than 0.1 km², with a total area of 612.1 km², and 152 glaciers smaller than 0.1 km², with a total area of 6.5 km².

In total, in the Atbash River basin there are 303 glaciers with a total area of 84.1 km², including: 174 glaciers larger than 0.1 km², with a total area of 78.0 km², and 129 glaciers smaller than 0.1 km², with a total area of 6.1 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 5), there were 284 glaciers in the Atbash River basin, covering a total area of 113.7 km², including: 253 glaciers larger than 0.1 km², with a total area of 112.2 km², and 31 glaciers smaller than 0.1 km², with a total area of 1.5 km².

In total, in the Alabuga River basin there are 228 glaciers with a total area of 107.5 km², including: 131 glaciers larger than 0.1 km², with a total area of 102.5 km², and 97 glaciers smaller than 0.1 km², with a total area of 5.0 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 7), there were 185 glaciers in the Alabuga River basin, covering a total area of 127.8 km², including: 161 glaciers larger than 0.1 km², with a total area of 126.8 km², and 24 glaciers smaller than 0.1 km², with a total area of 1.0 km².

In total, in the basins of the left tributaries of the Naryn River from the mouth of the Atbash River to the mouth of the Karadar'ya River there are 291 glaciers with a total area of 116.2 km², including: 158 glaciers larger than 0.1 km², with a total area of 109.2 km², and 133 glaciers smaller than 0.1 km², with a total area of 7.0 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 7), there were 231 glaciers in the basins of the left tributaries of the Naryn River from the mouth of the Atbash River to the mouth of the Karadar'ya River, covering a total area of 138.7 km², including: 200 glaciers larger than 0.1 km², with a total area of 137.3 km², and 31 glaciers smaller than 0.1 km², with a total area of 1.4 km².

In total, in the Tar River basin there are 221 glaciers with a total area of 56.8 km², including: 130 glaciers larger than 0.1 km², with a total area of 52.0 km², and 91 glaciers smaller than 0.1 km², with a total area of 4.8 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 8), there were 212 glaciers in the Tar River basin, covering a total area of 63.0 km², including: 162 glaciers larger than 0.1 km², with a total area of 60.8 km², and 50 glaciers smaller than 0.1 km², with a total area of 2.2 km².

In total, in the Karadar'ya River basin there are 484 glaciers with a total area of 113.3 km², including: 258 glaciers larger than 0.1 km², with a total area of 101.5 km², and 226 glaciers smaller than 0.1 km², with a total area of 11.8 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 8), there were 411 glaciers in the Karadar'ya River basin, covering a total area of 113.5 km², including: 295 glaciers larger than 0.1 km², with a total area of 108.4 km², and 116 glaciers smaller than 0.1 km², with a total area of 5.1 km².

In total, in the basins of the left tributaries of the Syr Darya River from the mouth of the Karadar'ya River to the mouth of the Aksu River there are 570 glaciers with a total area of 227.8 km², including: 348 glaciers larger than 0.1 km², with a total area of 216.4 km², and 216 glaciers smaller than 0.1 km², with a total area of 11.4 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 9), there were 422 glaciers larger than 0.1 km² in the basins of the left tributaries of the Syr Darya River from the mouth of the Karadar'ya River to the mouth of the Aksu River, covering a total area of 303.9 km². There is no data in the catalog for glaciers smaller than 0.1 km².

In total, in the Aksu River basin there are 38 glaciers with a total area of 9.3 km², including: 19 glaciers larger than 0.1 km², with a total area of 8.2 km², and 19 glaciers smaller than 0.1 km², with a total area of 1.1 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 10), there were 34 glaciers in the Aksu River basin, covering a total area of 18.3 km², including: 28 glaciers larger than 0.1 km², with a total area of 17.9 km², and 6 glaciers smaller than 0.1 km², with a total area of 0.4 km².

In total, in the Isfana River basin there are 4 glaciers with a total area of 0.7 km², including: 1 glacier with an area of 0.6 km² and 3 glaciers smaller than 0.1 km², with a total area of 0.1 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 10), there was 1 glacier in the Isfana River basin with an area of 0.4 km².

In total, in the Khojabaqirgan River basin there are 68 glaciers with a total area of 38.2 km², including: 42 glaciers larger than 0.1 km², with a total area of 36.8 km², and 26 glaciers smaller than 0.1 km², with a total area of 1.4 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 10), there were 73 glaciers in the Khojabaqirgan River basin, covering a total area of 51.9 km², including: 52 glaciers larger than 0.1 km², with a total area of 51.0 km², and 21 glaciers smaller than 0.1 km², with a total area of 0.9 km².

In total, in the Isfara River basin there are 139 glaciers with a total area of 122.6 km², including: 105 glaciers larger than 0.1 km², with a total area of 120.5 km², and 34 glaciers smaller than 0.1 km², with a total area of 2.1 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 10), there were 128 glaciers in the Isfara River basin, covering a total area of 169.6 km², including: 110 glaciers larger than 0.1 km², with a total area of 168.8 km², and 18 glaciers smaller than 0.1 km², with a total area of 0.8 km².

In total, in the Sukh River basin there are 420 glaciers with a total area of 301.2 km², including: 283 glaciers larger than 0.1 km², with a total area of 293.7 km², and 137 glaciers smaller than 0.1 km², with a total area of 7.5 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 10), there were 276 glaciers in the Sukh River basin, covering a total area of 258.7 km², including: 265 glaciers larger than 0.1 km², with a total area of 258.2 km², and 11 glaciers smaller than 0.1 km², with a total area of 0.5 km².

In total, in the Shahimardan River basin there are 72 glaciers with a total area of 38.9 km², including: 51 glaciers larger than 0.1 km², with a total area of 37.7 km², and 21 glaciers smaller than 0.1 km², with a total area of 1.2 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 10), there were 74 glaciers in the Shahimardan River basin, covering a total area of 47.7 km², including: 59 glaciers larger than 0.1 km², with a total area of 46.9 km², and 15 glaciers smaller than 0.1 km², with a total area of 0.8 km².

In total, in the basins of the left tributaries of the Syr Darya River from the mouth of the Aksu River and below there are 741 glaciers with a total area of 510.9 km², including: 501 glaciers larger than 0.1 km², with a total area of 497.5 km², and 240 glaciers smaller than 0.1 km², with a total area of 13.4 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 1, Part 10), there were 586 glaciers in the basins of the left tributaries of the Syr Darya River from the mouth of the Aksu River and below, covering a total area of 546.6 km², including: 515 glaciers larger than 0.1 km², with a total area of 543.2 km², and 71 glaciers smaller than 0.1 km², with a total area of 3.4 km².

In total, in the Kyzylsu River basin there are 526 glaciers with a total area of 578.4 km², including: 352 glaciers larger than 0.1 km², with a total area of 568.7 km², and 174 glaciers smaller than 0.1 km², with a total area of 9.7 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 3, Part 7), there were 294 glaciers in the Kyzylsu River basin, covering a total area of 640.3 km², including: 276 glaciers larger than 0.1 km², with a total area of 639.3 km², and 18 glaciers smaller than 0.1 km², with a total area of 1.0 km².

In total, in the Koksu River basin there are 77 glaciers with a total area of 23.2 km², including: 57 glaciers larger than 0.1 km², with a total area of 22.0 km², and 20 glaciers smaller than 0.1 km², with a total area of 1.2 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 3, Part 19), there were 88 glaciers in the Koksu River basin, covering a total area of 31.3 km², including: 56 glaciers larger than 0.1 km², with a total area of 29.3 km², and 32 glaciers smaller than 0.1 km², with a total area of 2.0 km².

In total, in the Eastern Kyzylsu River basin there are 144 glaciers with a total area of 157.2 km², including: 115 glaciers larger than 0.1 km², with a total area of 155.4 km², and 29 glaciers smaller than 0.1 km², with a total area of 1.8 km². According to the Catalog of Glaciers of the USSR (Volume 14, Issue 3, Part 19), there were 134 glaciers in the Eastern Kyzylsu River basin, covering a total area of 186.7 km², including: 100 glaciers larger than 0.1 km², with a total area of 184.6 km², and 34 glaciers smaller than 0.1 km², with a total area of 2.1 km².