What are the drivers of Caspian Sea level variation during the late Quaternary?
What are the drivers of Caspian Sea level variation during the late Quaternary?
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晚第四纪里海海平面变化的驱动因素是什么？
DOI：
10.1016/j.quascirev.2022.107457
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发表时间：
2022
影响因子：
4
通讯作者：
Koriche S
中科院分区：
文献类型：
--
作者：
Koriche S
第四纪里海海平面的变化取决于地球物理过程（影响门户的打开和关闭以及盆地的大小/形状）和水文气候过程（影响水平衡）。解开过去里海水位变化的驱动因素，以及它们影响里海水位变化的机制，是有争议的。在这项研究中，我们研究的相对影响，水文气候变化，冰盖积累和融化，和均衡调整里海水位变化。我们进行了模型分析冰盖和水文气候对里海水位的影响，并将其与最后一次冰期循环新整理的古里海海平面数据进行了比较。我们使用了全球耦合海洋-大气-植被气候模式HadCM 3的古气候模式模拟和ICE-6G_C冰川均衡调整模型的冰盖数据。我们的研究结果表明，冰盖融水在末次冰期循环里海海平面的变化中发挥了至关重要的作用，这是基于古里海海平面信息的假设。这种影响与地形变化导致的里海古排水系统的重组和扩张直接相关。融水和径流的综合贡献，从扩大盆地面积的主要因素在里海海侵在冰消期之间的20和15万年BP。它们对里海海平面演变的影响持续到大约13 kyr BP。千年尺度的事件（海因里希事件和新仙女木事件）对里海的地表水预算产生了负面影响，但它们对里海水位变化的影响是短暂的，并超过了大量的融水和径流的贡献在扩大的盆地。
Quaternary Caspian Sea level variations depended on geophysical processes (affecting the opening and closing of gateways and basin size/shape) and hydro-climatological processes (affecting water balance). Disentangling the drivers of past Caspian Sea level variation, as well as the mechanisms by which they impacted the Caspian Sea level variation, is much debated. In this study we examine the relative impacts of hydroclimatic change, ice-sheet accumulation and melt, and isostatic adjustment on Caspian Sea level change. We performed model analysis of ice-sheet and hydroclimate impacts on Caspian Sea level and compared these with newly collated published palaeo-Caspian sea level data for the last glacial cycle. We used palaeoclimate model simulations from a global coupled ocean-atmosphere-vegetation climate model, HadCM3, and ice-sheet data from the ICE-6G_C glacial isostatic adjustment model. Our results show that ice-sheet meltwater during the last glacial cycle played a vital role in Caspian Sea level variations, which is in agreement with hypotheses based on palaeo-Caspian Sea level information. The effect was directly linked to the reorganization and expansion of the Caspian Sea palaeo-drainage system resulting from topographic change. The combined contributions from meltwater and runoff from the expanded basin area were primary factors in the Caspian Sea transgression during the deglaciation period between 20 and 15 kyr BP. Their impact on the evolution of Caspian Sea level lasted until around 13 kyr BP. Millennial scale events (Heinrich events and the Younger Dryas) negatively impacted the surface water budget of the Caspian Sea but their influence on Caspian Sea level variation was short-lived and was outweighed by the massive combined meltwater and runoff contribution over the expanded basin.
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DOI：
10.1017/cbo9781107415324.013
发表时间：
2013-02
期刊：
--
影响因子：
--
作者：
V. Masson‐Delmotte;M. Schulz;A. Abe‐Ouchi;J. Beer;A. Ganopolski;J. F. G. Rouco;E. Jansen;K. Lamb
通讯作者：
V. Masson‐Delmotte;M. Schulz;A. Abe‐Ouchi;J. Beer;A. Ganopolski;J. F. G. Rouco;E. Jansen;K. Lamb
密西西比河排水系统记录的南劳伦太德冰盖逐渐消亡
影响因子：
64.8
作者：
A. Wickert;J. Mitrovica;Carlie Williams;R. Anderson
通讯作者：
R. Anderson
冰远端景观和沉积物特征证明俄罗斯西北部大型前冰川湖泊的筑坝和排水
DOI：
--
发表时间：
2011
期刊：
影响因子：
--
作者：
A. Lyså;M. Jensen;E. Larsen;O. Fredin;I. Demidov
通讯作者：
I. Demidov
伊朗南里海沿岸吉兰中部-东马赞德兰存在全新世晚期高位的证据
DOI：
--
发表时间：
2009
期刊：
影响因子：
--
作者：
H. Lahijani;H. Rahimpour;V. Tavakoli;M. Hosseindoost
通讯作者：
M. Hosseindoost
里海西坡的周期性沉积波作为主要海侵/海退事件的可能指标
DOI：
--
发表时间：
2010
期刊：
影响因子：
--
作者：
O. Levchenko;A. Roslyakov
通讯作者：
A. Roslyakov