哈拉图姆斯半岛Khatanga湾上的AARI气象站Khastyr地区的现代和古代环境条件

IF 1.6 4区 地球科学 Q4 ENVIRONMENTAL SCIENCES
D. Bolshiyanov, V. Sokolov, B. S. Pogrebov, B. Y. Nafikov, A. Krylov
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引用次数: 0

摘要

本文的目的是描述位于拉普捷夫海Khatanga湾Khatanga半岛西部(73°49′39,5”N 109°39′13,5”E)的新AARI气象站周围地区的当前和古代环境条件。喀斯特尔气象站成立于2016年,目前已开展了为期6年(2017-2022年)的水文气象系列观测。该站年平均气温为-11.7°C。最高温度为31.8℃,最低温度为-47.3℃。年大气降水量238毫米。一年中的大部分时间,风从西向东或从东向西吹。最大风速28米/秒,平均风速5.4米/秒。哈坦加湾的冰盖在7月下半月消失,在9月至10月再次形成。这里一年有9个月是冬天。对站附近岸线的地质、地貌和冻土结构进行了调查。悬崖由中更新世和晚更新世海相沉积物组成。对悬崖底部的沙子进行IR-OSL测年表明,这些沉积物有20.6万年的历史。海洋沉积物,包括含有木材和琥珀的卡尔金斯基沉积物,经放射性碳测定年龄为42000年(45000历年),被冰复体沉积物覆盖,其中哺乳动物骨骼的放射性碳年龄为32000年(36000历年)。首次在泰米尔半岛附近发现的赛加羚羊(saiga tatarica)骨头的放射性碳年龄为17000 14C年(22000历年)。在这个典型的冻土带地区,永久冻土过程非常活跃。因此,在该站境内组织了一个调查多年冻土过程的试验田。此外,这个地方非常方便研究海岸侵蚀过程。Khastyr站可以作为一个点来组织对哈坦加湾岸边典型冻土带自然环境的复杂研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Contemporary and ancient environmental conditions in the area of the AARI meteorological station Khastyr on Khatanga Bay on Hara-Tumus Peninsular
The aim of the article is to characterize the current and ancient environmental conditions in the area around a new AARI meteorological station, located in the west of the Khara-Tumus Peninsula (73° 49' 39,5'' N 109° 39' 13,5'' E) on the Khatanga Bay of the Laptev Sea. The Khastyr meteorological station was organized in 2016, and for the moment a 6-year (2017–2022) series of hydrometeorological observations has been performed. The average annual temperature at the station is –11.7 °C. The maximum temperature is 31.8 °C, the minimum temperature is –47.3 °C. The annual amount of atmospheric precipitation is 238 mm. The wind blows from west to east or from east to west during most of the year. The maximum wind speed is 28 m/sec, the average wind speed is 5,4 m/sec. The ice cover in the Khatanga Bay disappears in the second part of July and forms again in September-October. The winter lasts here for 9 months of the year.The geological, geomorphological and permafrost structure along the shoreline near the station is investigated.The cliff consists of marine sediments of the Middle and Late Pleistocene. The IR-OSL dating of the sands from the cliff’s basement shows that the sediments are 206 000 year old. The marine sediments, including Karginsky deposits with wood and amber, dated by the radiocarbon method and shown to be 42 000 year old (45 000 calendar year old), are covered by Ice Complex sediments, the mammal bones from which have a radiocarbon age of 32 thousand years (36 thousand calendar years). The saiga (Saiga tatarica) bones found near the Taimyr Peninsula for the first time have a radiocarbon age of 17 thousand 14C years (22 thousand calendar years).Permafrost processes are very active in this area of typical tundra. Therefore, a testing plot for investigating permafrost processes was organized on the territory of the station. Also, this place is very convenient for investigating coastal erosion processes. The Khastyr station can be used as a point for organizing complex studies of the natural environment in a typical tundra on the shore of Khatanga Bay.
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来源期刊
CiteScore
3.00
自引率
5.00%
发文量
37
审稿时长
7 months
期刊介绍: The mission of Arctic, Antarctic, and Alpine Research (AAAR) is to advance understanding of cold region environments by publishing original scientific research from past, present and future high-latitude and mountain regions. Rapid environmental change occurring in cold regions today highlights the global importance of this research. AAAR publishes peer-reviewed interdisciplinary papers including original research papers, short communications and review articles. Many of these papers synthesize a variety of disciplines including ecology, climatology, geomorphology, glaciology, hydrology, paleoceanography, biogeochemistry, and social science. Papers may be uni- or multidisciplinary but should have interdisciplinary appeal. Special thematic issues and proceedings are encouraged. The journal receives contributions from a diverse group of international authors from academia, government agencies, and land managers. In addition the journal publishes opinion pieces, book reviews and in memoria. AAAR is associated with the Institute of Arctic and Alpine Research (INSTAAR) the oldest active research institute at the University of Colorado Boulder.
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