Glacier evolution in high-mountain Asia under stratospheric sulfate aerosol injection geoengineering

Glacier evolution in high-mountain Asia under stratospheric sulfate aerosol injection geoengineering
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平流层硫酸盐气溶胶注入地球工程下亚洲高山冰川演化

DOI:
10.5194/acp-17-6547-2017
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发表时间:
2016-09
影响因子:
6.3
通讯作者:
Moore JC
Moore JC
中科院分区:
地球科学1区
文献类型:
--
作者:
Zhao Liyun;Yang Yi;Cheng Wei;Ji Duoying;Moore John C.;Zhao Liyun;Ji Duoying;Moore John C.;Moore John C.;Moore John C.;Zhao LY;Moore JC;Zhao LY;Moore JC;Moore JC;Moore JC

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抽象的。通过平流层硫酸盐气溶胶注入的地球工程可能有助于通过降低夏季温度来保护山脉冰川。我们使用由地球工程模型国际比较项目(GeoMIP)的气候模拟驱动的冰川质量平衡模型来检验亚洲高山冰川的这一假设。G3计划和G4计划具体规定了使用平流层硫酸盐气溶胶,以减少在代表浓度路径(RCP)4.5情景下2020年至2069年期间的辐射强迫,以及在地球工程终止后的20年。我们使用一个基于地表质量平衡参数化的冰川模型来估计和比较该地区每个冰川的冰川体积损失,该模型是在G3下的三个地球系统模型、G4下的五个模型以及RCP4.5和RCP8.5下的六个模型的气候预测下进行的。总体预测表明,2010年至2069年期间冰川萎缩相当于海平面上升9.0 ± 1.6 毫米(G3)、9.8 ± 4.3 mm(G4)、15.5 ± 2.3 mm(RCP4.5)和18.5 ± 1.7 mm(RCP8.5)。尽管G3阻止了地球工程期间平均气温的上升,但与RCP8.5的损失相比,G3仅减缓了约50 %的冰川收缩。在G3下,大约72 %的冰川面积保持在2069年左右,相比之下,在RCP8.5下,大约30 %的冰川面积仍然存在。被广泛报道的太阳地球工程预计平均降雨量的减少,不太可能像温度驱动的、迫使喜马拉雅冰川变化的从固体降水到液体降水的转变一样重要。根据G3,地球工程在2069年左右终止,导致2070年至2089年期间的气温较2050年至2069年期间上升约1.3 °C,相应地,年平均冰川体积损失率从0.17%增加到1.1RCP8.5年 % −1,高于2070年至2089年6月期间在RCP8.5下的0.66 % yr−1。
Abstract. Geoengineering by stratospheric sulfate aerosol injection may help preserve mountain glaciers by reducing summer temperatures. We examine this hypothesis for the glaciers in high-mountain Asia using a glacier mass balance model driven by climate simulations from the Geoengineering Model Intercomparison Project (GeoMIP). The G3 and G4 schemes specify use of stratospheric sulfate aerosols to reduce the radiative forcing under the Representative Concentration Pathway (RCP) 4.5 scenario for the 50 years between 2020 and 2069, and for a further 20 years after termination of geoengineering. We estimate and compare glacier volume loss for every glacier in the region using a glacier model based on surface mass balance parameterization under climate projections from three Earth system models under G3, five models under G4, and six models under RCP4.5 and RCP8.5. The ensemble projections suggest that glacier shrinkage over the period 2010–2069 is equivalent to sea-level rise of 9.0 ± 1.6 mm (G3), 9.8 ± 4.3 mm (G4), 15.5 ± 2.3 mm (RCP4.5), and 18.5 ± 1.7 mm (RCP8.5). Although G3 keeps the average temperature from increasing in the geoengineering period, G3 only slows glacier shrinkage by about 50 % relative to losses from RCP8.5. Approximately 72 % of glaciated area remains at 2069 under G3, as compared with about 30 % for RCP8.5. The widely reported reduction in mean precipitation expected for solar geoengineering is unlikely to be as important as the temperature-driven shift from solid to liquid precipitation for forcing Himalayan glacier change. The termination of geoengineering at 2069 under G3 leads to temperature rise of about 1.3 °C over the period 2070–2089 relative to the period 2050-2069 and corresponding increase in annual mean glacier volume loss rate from 0.17 to 1.1 % yr−1, which is higher than the 0.66 % yr−1 under RCP8.5 during 2070–2089.
玉龙山白水一号冰川质量平衡及近地表冰温结构
DOI: 10.1007/s11442-013-1036-4
发表时间: 2013-06
影响因子: 4.9
作者:
DU Jiankuo;HE Yuanqing
通讯作者: HE Yuanqing
DOI: 10.5194/tc-6-1445-2012
发表时间: 2012-12
期刊: The Cryosphere
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发表时间: 2015-01-01
影响因子: 3.4
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通讯作者: Jiang, Zongli
DOI: --
发表时间: 2011
期刊: --
影响因子: --
作者:
W. Collins;N. Bellouin;M. Doutriaux-Boucher;N. Gedney;P. Halloran;T. Hinton;J. Hughes;C. Jones
通讯作者: W. Collins;N. Bellouin;M. Doutriaux-Boucher;N. Gedney;P. Halloran;T. Hinton;J. Hughes;C. Jones
DOI: 10.1007/s00382-013-1719-7
发表时间: 2013
期刊: Climate Dynamics
影响因子: 4.6
作者:
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通讯作者: V. Radic;A. Bliss;A. C. Beedlow;R. Hock;Evan S. Miles;Evan S. Miles;J. Cogley