黑海RAS水物理多边形陆架水垂直热结构长期监测结果

IF 0.7 Q4 OCEANOGRAPHY
A. P. Tolstosheev, S. Motyzhev, E. Lunev
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引用次数: 0

摘要

目的。克里米亚南部海岸的地理和气候特征为水热结构的显著动力活动提供了条件。在没有潮汐主导作用的情况下,对温度垂直变化的研究,可以说明上升流的结构和动力,以及各种来源的波的特征。这种难以预测的过程,其时间尺度从几分钟到几天,只有通过长期连续的观测才能揭示和记录。该研究的目的是分析克里米亚南部海岸附近沿海地区热过程的长期监测结果。它是在黑海水物理科学多边形进行的。方法与结果。2012年12月,水温垂直分布运行控制观测系统安装在黑海海岸带(蓝湾)固定平台上,距离海岸约450米。平台下水深约30米。在系统温度串中每隔1.5 m安装精度优于0.1°C的数字温度传感器。分析周期为60 s。该观测系统历时6.5年的试验提供了具有统计意义和持续时间独特的沿海地区热过程变率数据。到2019年4月初,系统生产功能的总持续时间约为900天。在此期间,获得了超过1300000个温度曲线。基于2013年获得的资料,给出了一个季节周期的温度天气变率估计。考虑了与风影响无关的上升流事件。结论。多年实验的长期数据序列不仅可以说明,而且可以改变黑海陆架区热过程演化特征的一些现有观念。值得注意的是,将观测系统作为在黑海沿海多边形进行水物理测量的不断运行的网络的一部分加以应用是方便的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Results of Long-Term Monitoring of the Shelf Water Vertical Thermal Structure at the Black Sea Hydrophysical Polygon of RAS
Purpose. The geographical and climatic features of the Crimean Southern coast condition significant dynamic activity of the water thermal structure. Studies of the temperature vertical variability in the absence of the tides’ dominant affect, permit to specify the upwelling structure and dynamics as well as the characteristics of waves of various origin. Such hardly-forecasted processes, the time scales of which constitute from a few minutes to several days can be revealed and registered only by long-term continuous observations. The aim of the study is to analyze the results of long-term monitoring of the thermal processes in the coastal zone near the Crimean Southern coast. It was performed at the Black Sea hydrophysical scientific polygon. Methods and Results. In December, 2012 the observation system for operational control of the water temperature vertical distribution was installed at the stationary platform located in the coastal zone of the Black Sea (the Blue Bay) at a distance of ~450 m from the coast. The sea depth under the platform was ~30 m. Digital temperature sensors having precision better than 0.1 °C were installed with 1.5 m intervals in the temperature string of the system. The profiling period was 60 s. The 6.5 year-long experiment with the observation system provided statistically significant and duration-unique serious of data on variability of the thermal processes in the sea coastal region. By early April 2019, the total duration of the system productive functioning was ~900 days. During this period, more than 1300000 temperature profiles were obtained. Based on the data obtained in 2013, the estimates of a seasonal cycle of the temperature synoptic variability are represented. The upwelling events not related to the wind impact are considered. Conclusions. The long-term data series resulted from the multi-year experiment permit not only to specify, but also to change some of the existing ideas of the thermal processes’ evolution features in shelf zone of the Black Sea. Noted is the expediency of applying the observation system as a segment of the constantly operating network at the coastal polygons for performing hydrophysical measurements in the Black Sea.
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来源期刊
Physical Oceanography
Physical Oceanography OCEANOGRAPHY-
CiteScore
1.80
自引率
25.00%
发文量
8
审稿时长
24 weeks
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