气象要素影响下雪冰离子淋溶过程研究——以乌鲁木齐河源1号冰川为例

doi:10.7522/j.issn.1000-0240.2016.0034

摘要/Abstract

摘要： 为了更好地理解化学离子在雪坑中的迁移和保存，进一步解释冰芯记录，基于乌鲁木齐河源1号冰川海拔4130 m处的雪冰化学资料，研究了气温和降水与离子淋溶过程的关系.结果表明：气温与离子浓度呈负相关关系，夏季的雪坑离子浓度波动剧烈，冬季的雪坑离子浓度相对稳定.离子浓度随正积温的升高呈指数衰减趋势，当正积温至0℃以上时，离子浓度急剧降低；当正积温升至60℃左右时，离子浓度呈缓慢降低.不同离子的淋溶过程对正积温的响应有所不同，随着正积温的增加，SO₄^2-，NO₃^-，Na⁺，Cl^-，NH₄⁺和Ca²⁺的衰减趋势非常显著，而Mg²⁺和K⁺则呈现无规律性的变化.淋溶因子指出，融水渗浸作用导致雪坑中大部分离子被淋溶；不同离子的淋溶因子也有明显差异，Mg²⁺淋溶因子最小（0.43），SO₄^2-淋溶因子最大（0.84），说明Mg²⁺最为稳定，而SO₄^2-最易淋溶.降水对雪坑离子浓度的影响较为微弱，主要通过增加表层雪离子浓度而提升整个雪坑的离子浓度.

关键词: 乌鲁木齐河源1号冰川, 淋溶, 离子浓度, 正积温, 降水

Abstract: We examine the impact of air temperature and precipitation on the chemical ionic concentration from successive snowpacks on Ürümqi Glacier No.1 in eastern Tianshan, central Asia. Data suggest that the arrival of high temperatures has more impaction on ionic concentration in snowpack. Therefore, we establish the correlation between positive accumulated temperatures and ionic concentration. The results indicate that ion concentrations are exponential decline along with positive accumulated temperature in strong elution periods. During this process, ionic concentration reduced sharply at first, then, generally decreased as temperature rising proceeds until it dropped to the minimum. Elution Factor shows most of ions were leached out from snowpack after summer melting at Ürümqi Glacier No.1. The continuous precipitation could increase the ions concentrations in snowpack through enhancing them in surface snow. However, the relationship is weak.

Key words: Ürümqi Glacier No.1, elution process, ion concentration, positive accumulated temperature, precipitation

中图分类号:

P343.6

尤晓妮, 李忠勤, 王莉霞. 气象要素影响下雪冰离子淋溶过程研究——以乌鲁木齐河源1号冰川为例[J]. 冰川冻土, 2016, 38(2): 312-322.

YOU Xiaoni, LI Zhongqin, WANG Lixia. An investigation of the relationship between meteorological elements and the variation of ion concentration in snowpack:as an example of Ürümqi Glacier No. 1 in eastern Tianshan[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2016, 38(2): 312-322.

参考文献

[1] Thompson L G, Davis M E, Mosley-Thompson E, et al. A 25000-year tropical climate history from Bolivian Ice Cores[J]. Science, 1998, 282:1858-1864.
[2] De Ji, Yao Tandong, Yao Ping, et al. Characteristics of climate change in warm and cold periods revealed from ice cores and meterological records during the past 100 years on the Tibetan Plateau[J]. Journal of Glaciology and Geocryology, 2013, 35(6):1382-1390.[德吉, 姚檀栋, 姚平, 等. 冰芯和气象记录揭示的青藏高原百年来典型冷暖时段气候变化特征[J]. 冰川冻土, 2013, 35(6):1382-1390].
[3] Duan Keqin, Hong Jianchang. 400 year variation of NO-3 concentration recorded in the Dasuopu ice core, Himalayas[J]. Journal of Glaciology and Geocryo1ogy, 2010, 27(6):853-860.[段克勤, 洪健昌.喜马拉雅山达索普冰芯近400a来NO-浓度的变化[J]. 冰川冻土, 2010, 32(2):231-234].
[4] Kaufmnn P, Fundel F, Fischer H, et al. Ammonium and nonsea salt sulfate in the EPICA ice cores as indicator of biological activity in the Southern Ocean[J]. Quaternary Science Reviews, 2010, 29(1-21):313-323.
[5] Laluraj C M, Thamban M, Naik S S, et al. Nitrate records of a shallow ice core from East Antarctica:atmospheric processes preservation and climatic implications[J]. The Holocene, 2011, 21(2):351-356.
[6] Isaksson E, Pohjola V, Jauhiainen T. A new ice-core record from Lomonosovfonna, Svalbard:Viewing the 1920-97 data in relation to present climate and environmental conditions[J]. Journal of Glaciology, 2001, 47(157):335-345.
[7] Kotlyakov V M, Arkhipov S M, Henderson K A. Deep drilling of glaciers in Eurasian Arctic as a source of paleoclimate records[J]. Quaternary Environments of the Eurasian North, 2004, 23(11-13):1371-1390.
[8] Vandewal R S W, Mulvaney R, Isaksson E. Reconstruction of the historical temperature trend from measurements in a medium length borehole on the Lomonosovfonna Plateau, Svalbard[J]. Annals of Glaciology, 2002, 35:371-378.
[9] Koerner R M. Some comments on climatic reconstructions from ice cores drilled in Areas of high melt[J]. Journal of Glaciology, 1997, 43(143):90-97.
[10] Yin Guan, Ni Shijun, Fan Xiao, et al. Isotopic effec and the deuterium excess parameter evolution in ice and snow melting process:a case study of isotopes in the water body of Daocheng, Sichuan Province[J]. Acta Geoscientica Sinica, 2004, 25(2):157-160.[尹观, 倪师军, 范晓, 等. 冰雪溶融的同位素效应及氘过量参数演化一以四川稻城水体同位素为例[J]. 地球学报, 2004, 5(2):157-160].
[11] Johannessen M, Henriksen A. Chemistry of snowmelt water:changes in concentration during melting[J]. Water Resource Research, 1978, 14:615-619.
[12] Davies T D, Briblecombe P, Tranter M. The removal of soluble ions from melting snowpacks[J]. Seasonal Snow covers:Physics, Chemistry, Hydrology, 1987, 211:337-392.
[13] Robert H, Bales R C. Modeling ionic solute transport in melting snow[J]. Water Resources Research, 1998, 34(7):1727-1736.
[14] Jeonghoon L, Xiahong F, Eric S P. Modeling of solute transport in snow using conservative tracers and artificial rain-onsnow experiments[J]. Water Resources Research, 2008, 44(2):W02411.
[15] Torsten M, Frank W. Modeling the elution of organic chemicals from a melting homogeneous snow pack[J]. Water Research, 2011, 45:3627-3637.
[16] Wang Shengjie, Zhang Mingjun, Wang Feiteng, et al. Observed nitrogen containing ion transportation at the firn-ice interface of the Ürümqi Glacier No. 1 in Tianshan Mountains[J]. Acta Geoscientica Sinica, 2011, 32(6):699-706.[王圣杰, 张明军, 王飞腾, 等. 乌鲁木齐河源1号冰川雪-冰界面含氮离子迁移研究[J]. 地球学报, 2011, 32(6):699-706].
[17] Chen Chunyan, Li Yi, Li Qihang. Snow cover depth in Ürümqi region, Xinjiang:evolution and response to climate change[J]. Journal of Glaciogogy and Geocryology, 2015, 37(3):587-594.[陈春艳, 李毅, 李奇航. 新疆乌鲁木齐地区积雪深度演变规律及对气候变化的响应[J]. 冰川冻土, 2015, 37(3):587-594].
[18] Yukiyoshi I, Manabu N, Shuichi H. Influence of rain, air temperature, and snow cover on subsequent spring-snowmelt infiltration into thin frozen soil layer in Northern Japan[J]. Journal of Hydrology, 2011, 401:165-176.
[19] Woods R A. Analytical model of seasonal climate impacts on snow hydrology:continuous snowpacks[J]. Advances in Water Resources, 2009, 32:1465-1481.
[20] Franz K J, Hogue T S, Sorooshian S. Operational snow modeling:addressing the challenges of an energy balance model for national weather service forecasts[J]. Journal of Hydrology, 2008, 360(1-4):48-66.
[21] Georg J, Moore R D, Russell S. Distributed temperature-index snowmelt modelling for forested catchments[J]. Journal of Hydrology, 2012, 420-421:87-101.
[22] Braithwaite R J, Olesen O B. Calculation of glacier ablation from air temperature, West Greenland[C]//Glacier Fluctuations and Climatic Change, Glaciology and Quaternary Geology, Dordrecht, 1989:219-233.
[23] World Meteorological Organization. Intercomparison of Models for Snowmelt Runoff[R]. WMO, 1986:646.
[24] Ambach W. Interpretation of the positive-degree-days factor by heat balance characteristics, West Greenland[J]. Nord Hydrology, 1988, 19:217-224.
[25] Sato A, Takahash S, Naruse R, et al. Ablation and heat balance of the Yukikabe snow patch in the Daisetsu mountains[J]. Annals of Glaciology, 1984, 5:122-126.
[26] Lang H, Braun L. On the information content of air temperature in the context of snow melt estimation[C]//Hydrology of Mountainous Areas, Proceedings of the Strbske Pleso Symposium, IAHS Publ. 1990:347-354.
[27] Braithwaite R J, Olesen O B. Response of the energy balance on the margin of the Greenland ice sheet to temperature changes[J]. Journal of Glaciology, 1990, 36(123):217-221.
[28] Wang Dehui, Zhang Peiyuan. On the valley climate of Ürümqi River in the Tianshan Mountain[J]. Journal of Glaciology and Geocryology, 1985, 7(3):239-248.[王德辉, 张怌远. 天山乌鲁木齐河谷气候特征. 冰川冻土, 1985, 7(3):239-248].
[29] Yang Daqing, Jiang Tong, Zhang Yinsheng, et al. Analysis and correction of errors in precipitation measurement at the head of Urumqi River, Tianshan[J]. Journal of Glaciology and Geocryology, 1988, 10(4):384-399.[杨大庆, 姜彤, 张寅生, 等. 天山乌鲁木齐河源降水观测误差分析及其修正[J]. 冰川冻土, 1988, 10(4):384-399].
[30] Xie Zichu, Huang Maohuan. A evolution of the snow-firn layer and ice formation in the Glacier No. 1 at the headwaters of the Urumqi River, Tianshan Mountains[C]//A Studies of Glaciology and Hydrology in the Ürümqi River, Tianshan Mountains. Beijing:Science Press, 1965:1-14.[谢自楚, 黄茂恒. 天山乌鲁木齐河源1号冰川雪-粒雪层的演变及成冰作用[C]//天山乌鲁木齐河冰川与水文研究. 北京:科学出版社, 1965:1-14].
[31] You Xiaoni, Li Zhongqin, Wang Feiteng. Study on time scale of snow-ice transformation through snow layer tracing method:Take the Glacier No. 1 at the headwaters of Ürümqi River as an example[J]. Journal of Glaciology and Geocryo1ogy, 2005, 27(6):853-860.[尤晓妮, 李忠勤, 王飞腾. 2005. 利用雪层层位跟踪法研究暖型成冰作用的年限:以乌鲁木齐河源1号冰川为例[J]. 冰川冻土, 27(6):853-860].
[32] Zhao Zhongping, Li Zhongqin. Determination of soluble ions in atmospheric aerosol by ion chromatography[J]. Modern Scientific Instruments, 2004, (5):46-49.[赵中平, 李忠勤.离子色谱法测定大气气溶胶中的可溶性离子[J]. 现代科学仪器, 2004, (5):46-49].
[33] Li Zhongqin, Ross E, Mosley-Thompson E. Seasonal variability of ionic concentrations in surface snow and elution processes in snow-firn packs at the PGPI Site on Urumqi glacier No. 1, Eastern Tien Shan, China[J]. Annals of Glaciology, 2006, 43:250-256.
[34] Wang Feiteng, Li Zhongqin, You Xiaoni, et al. Observation and study of the now to ice transformation in the accumulation zone of Glacier No. 1 at the headwaters of Urumqi River[J]. Journal of Glaciology and Geocryology, 2006, 28(1):45-53.[王飞腾, 李忠勤, 尤晓妮, 等. 乌鲁木齐河源1号冰川积累区表面雪层演化成冰过程的观测研究. 冰川冻土, 2006, 28(1):45-53].
[35] Suzuki K. Chemical changes of snow cover by melting[J]. Japanese Journal of Limnology, 1982, 43:102-112.
[36] Zhang Ningning, He Yuanqing, Pang Hongxi, et al. Preliminary study of transformation of snow to ice and ion elution during ablation period at a typical temperate glacier region[J]. Journal of Glaciology and Geocryology, 2010, 32(3):505-513.[张宁宁, 何元庆, 庞洪喜, 等. 典型海洋型冰川区消融期雪坑层位演变及离子沉积后过程初探[J]. 冰川冻土, 2010, 32(3):505-513].
[37] Bales R C, Sommerfcld R A, Kebler D G. Ionic tracer movement through a Wyoming Snowpack[J]. Atmospheric Environment, 1990, 24A(11):2749-2758.
[38] Hock R. Temperature index melt modeling in mountain areas[J]. Journal of Hydrology, 2003, 282:104-115.
[39] Moore J C, Grinsted A, Kekonen T. Separation of melting and environmental signals in an ice core with seasonal melt[J]. Geophysical Research Letter, 2005, 32(10):L10501.
[40] You Xiaoni, Li Zhongqin, Wang Lixia. The transport of chemical components in homogeneous snowpacks on Ürümqi Glacier No. 1, eastern Tianshan Mountains, Central Asia[J]. Journal of Arid Land, 2015, 7(5):612-622.
[41] Feng Fang, Feng Qi, Liu Xiande, et al. A study of hydrochemical characteristics of meltwater runoff of the Urumqi Glacier No. 1, Tianshan Mountains[J]. Journal of Glaciology and Geocryology, 2014, 36(1):184-191.[冯芳, 冯起, 刘贤德, 等. 天山乌鲁木齐河源1号冰川融水径流水化学特征研究[J]. 冰川冻土, 2014, 36(1):184-191].
[42] Jiang Yuanan, Liu Jiang, Shao Weilin, et al. Climatic characteristics and historical evolution of precipitation in different time scales in Xinjiang from 1961 to 2013[J]. Journal of Glaciology and Geocryology, 2014, 36(6):1363-1375.[江远安, 刘精, 邵伟玲, 等. 1961-2013年新疆不同时间尺度降水量的气候特征及其历史演变规律[J]. 冰川冻土, 2014, 36(6):1363-1375].