Modeling decadal snow and ice dynamics and their hydrological impacts in the Balkhash Lake Basin, Central Asia
文献类型：期刊论文
| 作者 | Gan, Guojing3,4,5,6; Wu, Jinglu3,4,6; Yang, Ruibiao3,4,6; Gao, Yanchun2; Shen, Beibei1 |
| 刊名 | JOURNAL OF ARID LAND
 |
| 出版日期 | 2026-04-01 |
| 卷号 | 18期号:4页码:547-567 |
| 关键词 | runoff trend snow and ice dynamics degree-day model remote sensing Balkhash Lake Basin |
| ISSN号 | 1674-6767 |
| DOI | 10.1016/j.jaridl.2026.04.001 |
| 产权排序 | 5 |
| 文献子类 | Article |
| 英文摘要 | The Balkhash Lake Basin (BLB), a vital Central Asian watershed, faces hydrological uncertainty under climate warming. This study integrated multi-source remote sensing data (Sentinel-1 snow depth, Randolph Glacier Inventory (RGI) v.7.0 glacier inventory, and Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) mass balance) with a degree-day model to reconstruct decadal snow and ice dynamics across 13 sub-basins and analyzed their hydrological impacts from 1950 to 2014. The results showed that: (1) while flows from the downstream river of the BLB decreased from 1950 to 1982 due to land surface changes, runoff increased significantly after 1982 in the Ili River (18.0%) and moderately increased in most rivers in the east (1.3%-8.3%), driven by increased precipitation and glacier melt. Runoff in the Ayaguz catchment (no glaciers with the highest climate warming) declined (10.5%); (2) climate warming reduced precipitation falling as snow caused snow melt water to decline (0.03-0.22 mm/a) across the BLB, leading to downward shifts in runoff and runoff coefficient, especially in the rivers in the east. However, snow melt during April-June positively correlated with runoff coefficient, contributing to an upward shift in the Ili River Basin; and (3) meltwater from glacierized areas (<5.0% of basin area) contributed to 14.3% of total ablation water. Net glacier melt provided substantial excess flows (11.6 m(3)/s in the Ili River and <1.0 m(3)/s in the rivers in the east), generally counterbalancing the negative effect of rising potential evaporation at decadal scales and positively correlating with the runoff coefficient. Therefore, water stress in the BLB may be more severe in the future due to the accelerating glacier melt after the abrupt increase in air temperature in 2000, the continuing decline in snow melt, and the significant inter-annual variations in precipitation. |
| URL标识 | 查看原文 |
| WOS关键词 | HIGH-MOUNTAIN ASIA ; ANNUAL RUNOFF ; EVAPORATION ; GLACIERS ; WATER ; SURFACE ; PRECIPITATION ; DECREASE ; TREND ; FLUX |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001747563300001 |
| 出版者 | KEAI PUBLISHING LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221477]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | Wu, Jinglu |
| 作者单位 | 1.Yangzhou Univ, Coll Environm Sci & Engn, Yangzhou 225127, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China; 3.Univ Chinese Acad Sci, Coll Nanjing, Nanjing 211135, Peoples R China; 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 5.Chinese Acad Sci, Key Lab Watershed Geog Sci, Nanjing 211135, Peoples R China; 6.Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake & Watershed Sci Water Secur, Nanjing 211135, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Gan, Guojing,Wu, Jinglu,Yang, Ruibiao,et al. Modeling decadal snow and ice dynamics and their hydrological impacts in the Balkhash Lake Basin, Central Asia[J]. JOURNAL OF ARID LAND,2026,18(4):547-567. |
| APA | Gan, Guojing,Wu, Jinglu,Yang, Ruibiao,Gao, Yanchun,&Shen, Beibei.(2026).Modeling decadal snow and ice dynamics and their hydrological impacts in the Balkhash Lake Basin, Central Asia.JOURNAL OF ARID LAND,18(4),547-567. |
| MLA | Gan, Guojing,et al."Modeling decadal snow and ice dynamics and their hydrological impacts in the Balkhash Lake Basin, Central Asia".JOURNAL OF ARID LAND 18.4(2026):547-567. |
入库方式： OAI收割
来源：地理科学与资源研究所
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