当前位置: X-MOL 学术J. Quat. Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Malaco temperature reconstructions and numerical simulation of environmental conditions in the southeastern Carpathian Basin during the Last Glacial Maximum
Journal of Quaternary Science ( IF 1.9 ) Pub Date : 2021-05-05 , DOI: 10.1002/jqs.3318
Patrick Ludwig 1 , Milivoj B. Gavrilov 2 , Milica G. Radaković 2 , Slobodan B. Marković 2
Affiliation  

We investigate the glacial climate conditions in the southeastern Carpathian Basin (Vojvodina, Serbia) based on the reconstruction of malacological palaeotemperatures and results from a high-resolution regional climate simulation. Land snail assemblages from eight loess profiles are used to reconstruct July temperatures during the Last Glacial Maximum (LGM). The malacological reconstructed temperatures are in good agreement with the simulated LGM July temperatures by the Weather Research and Forecast model. Both methods indicate increasing temperatures from the northwestern towards the southeastern parts of the study area. LGM aridity indices calculated based on the regional climate model data suggest more arid conditions in the southeastern parts compared with more humid conditions in the northwestern parts. However, for present-day conditions, the moisture gradient is reversed, exhibiting more humid (arid) conditions in the southeast (northwest). An explanation for the reversed LGM aridity pattern is provided by an analysis of the prevailing wind directions over the South Banat district (Serbia). The prevailing moist northwesterly winds during summer are not able to compensate for the annual lack of moisture induced by the dry winds from the southeast that are more frequent during the LGM for the other seasons.

中文翻译:

末次盛冰期喀尔巴阡盆地东南部环境条件的 Malaco 温度重建和数值模拟

我们基于对冰川古温度的重建和高分辨率区域气候模拟的结果,调查了喀尔巴阡盆地东南部(伏伊伏丁那,塞尔维亚)的冰川气候条件。来自八个黄土剖面的陆地蜗牛组合用于重建末次冰期最大值 (LGM) 期间的 7 月温度。Malacological 重建温度与 Weather Research and Forecast 模型模拟的 LGM 7 月温度非常吻合。这两种方法都表明温度从研究区的西北部向东南部升高。基于区域气候模型数据计算的 LGM 干旱指数表明,与西北部地区较为潮湿的情况相比,东南部地区更为干旱。然而,就目前的情况而言,湿度梯度相反,在东南(西北)表现出更潮湿(干旱)的条件。对南巴纳特地区(塞尔维亚)盛行风向的分析提供了对 LGM 干旱模式逆转的解释。夏季盛行的潮湿西北风无法弥补来自东南部的干燥风引起的年度水分缺乏,而东南风在其他季节的 LGM 期间更为频繁。
更新日期:2021-05-05
down
wechat
bug