Relationship between recent climate change, ablation conditions of glaciers of the East Sayan Range, Southeastern Siberia, and atmospheric circulation patterns
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The 2001–2013 sum of positive temperatures (SPT) record, as a proxy of snow/ice ablation, has been obtained for the high-mountain glaciarized Munku-Sardyk massif, East Sayan Mountains, using daily NCEP/NCAR reanalysis data. The SPT (and ice melt) demonstrates a significant decreasing trend, with the highest values in 2001, 2002, and 2007, and the lowest in 2013. We have investigated relationships between potential summer ablation and synoptic-scale conditions over the study area. Increased summer ablation is associated with anticyclonic pressure field, secondary anticyclones with cloudless weather conditions, and low gradient field. Reduced ablation is strongly correlated with Arctic air invasions, cyclonic pressure field, and southern cyclones entailed the advection of cold air masses. Statistically significant correlations have been found between the SPT data and meridional circulation intensity and cyclonic/anticyclonic activity. Variability of regional atmospheric circulation conditions in the early 21st century resulted in change of high-mountain snow/ice melt regime and could lead to future change of the East Sayan glaciers.
KeywordsSouth-East Siberia East Sayan range Munku-Sardyk Climate change Air temperature Atmospheric circulation NCEP/NCAR reanalysis Glacier change Ablation
We are very grateful to three anonymous reviewers for their valuable comments and suggestions. The study was supported by the Russian Foundation for Basic Research (project ##15-05-04525_a) and FANO Program VIII.76.1.6 (0345-2014-0008). We are also grateful to the staff of scientific library of the Irkutsk Meteorological Office for assistance in collecting of weather maps.
Conflict of interest
The authors declare that they have no conflict of interest.
- Ambach W (1974) The influence of cloudiness on the net radiation balance of a snow surface with high albedo. J Glaciol 13(67):73–84Google Scholar
- Ananicheva MD, Kononova NK (2007) Relation of air temperature, precipitation and glacial mass balance with macro-circulation processes in north-western Siberia and Polar Urals. Data Glaciol Stud 103:58–67 (in Russian) Google Scholar
- Draxler RR, Rolph GD (2013) HYSPLIT (HYbrid single-particle lagrangian integrated trajectory) Model access via National Oceanic and Atmospheric Administration (NOAA) Air Resources Laboratory (ARL) website (http://www.arl.noaa.gov/HYSPLIT.php), College Park, MD
- Hannah D, Gurnell A, McGregor G (1999) Identifying links between large-scale atmospheric circulation and local glacier ablation climates in the French Pyrenees. In: Interactions between the cryosphere, climate and greenhouse gases, Birmingham, pp 155–163Google Scholar
- Ivanov EN, Plyusnin VM, Kitov AD, Kovalenko SN, Balyazin IV, Sofronov AP (2015) Inventory of nival-glacial geosystems in Lake Baikal area (East Siberia, Russia). Environ Earth Sci (this issue)Google Scholar
- Kalnay E, Kanamitsu M, Kistler R, Collins W, Deaven D, Gandin L, Iredell M, Saha S, White G, Woollen J, Zhu Y, Leetmaa A, Reynolds R, Chelliah M, Ebisuzaki W, Higgins W, Janowiak J, Mo KC, Ropelewski C, Wang J, Jenne R, Joseph D (1996) The NCEP/NCAR 40-Year Reanalysis Project. Bull Am Meteorol Soc 77:437–471CrossRefGoogle Scholar
- Kats AL (1960) Seasonal variations in the general circulation of the atmosphere and long-term forecasts. Gidrometeoizdat, Leningrad (in Russian) Google Scholar
- Malneva IV, Kononova NK (2012) Midflow activity in the territory of Russia and neighboring countries in the 21 century. GeoRisk 4:48–54 (in Russian) Google Scholar
- Ohmura A, Kasser P, Funk M (1992) Climate at the equilibrium line of glaciers. J Glaciol 38(130):397–411Google Scholar
- Osipov EY, Ashmetiev AY, Osipova OP, Klevtsov EV (2013) New glacier inventory of the south-east of Eastern Sayan. Ice Snow 3(123):45–54 (in Russian) Google Scholar
- Plyusnin VM, Kitov AD, Kovalenko SN, Suvorov EG (2015) Modern changes of the high-mountain landscapes and glaciation in Southern Siberia (Russia) by the example of the Eastern Sayan Mountains. Environ Earth Sci (this issue)Google Scholar
- Rolph GD (2013) Real-time Environmental applications and Display sYstem (READY) website (http://www.ready.noaa.gov), National Oceanic and Atmospheric Administration (NOAA) Air Resources Laboratory (ARL), College Park, MD
- Stepanova OG, Trunova VA, Zvereva VV, Melgunov MS, Fedotov AP (2015) Reconstruction of glacier fluctuations in the East Sayan, Baikalsky and Kodar Ridges (East Siberia, Russia) during the last 210 years based on high-resolution geochemical proxies from proglacial lake bottom sediments. Environ Earth Sci (this issue)Google Scholar
- Washington R, Hodson A, Isaksson E, Macdonald O (2000) Northern hemisphere teleconnection indices and the mass balance of Svalbard glaciers. Int J Climatol 20:473–487. doi: 10.1002/(SICI)1097-0088(200004)20:5<473:AID-JOC506>3.0.CO;2-O CrossRefGoogle Scholar