Seasonal variability of thermocline

Seasonal variability of thermocline in the Yellow Sea

Based on the MASNUM wave-tide-circulation coupled numerical model, seasonal variability of thermocline in the Yellow Sea was simulated and compared with in-situ observations. Both simulated mixed layer depth (MLD) and thermocline intensity have similar spatial patterns to the observations. The simulated maximum MLD are 8 m and 22 m, while the corresponding observed values are 13 m and 27 m in July and October, respectively. The simulated thermocline intensity are 1.2℃/m and 0.5℃/m in July and October,respectively, which are 0.6℃/m less than those of the observations. It may be the main reason why the simulated thermocline is weaker than the observations that the model vertical resolution is less precise than that of the CTD data which is 1 m. Contours of both simulated and observed thermocline intensity present a circle in general. The wave-induced mixing plays a key role in the formation of the upper mixed layer in spring and summer. Tidal mixing enhances the thermocline intensity. Buoyancy-driven mixing destroys the thermocline in autumn and keeps the vertical temperature uniform in winter.

作 者： 乔方利 夏长水 施建伟 马建 葛人峰 袁业立   作者单位： 乔方利,夏长水,马建,葛人峰,袁业立(The First Institute of Oceanography, State Oceanic Administration (SOA), Qingdao 266061, China;Key Laboratory of Marine Science and Numerical Modeling (MASNUM), SOA, Qingdao 266061, China)

施建伟(Guest Researcher of MASNUM, SOA, China) 

刊 名： 中国海洋湖沼学报(英文版)  ISTIC SCI 英文刊名： CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY  年，卷(期)： 2004 22(3)  分类号：   关键词： thermocline   the Yellow Sea   wave-tide-circulation coupled model   wave-induced mixing   tidal mixing  

【Seasonal variability of thermocline 】相关文章：

VARIABILITY SETS AND HAMILTON SEQUENCES04-29

Soil respiration in tropical seasonal rain forest in Xishuangbanna, SW China04-29

Precipitation variability in central Himalayas and its relation to Northern Hemisphere temperature04-27

Spatial and temporal variability of agricultural pollutants in an agricultural headwater stream within a multipond syste04-26

How Does the Partitioning of Evapotranspiration and Runoff between Different Processes Affect the Variability and Predic04-27

The Northward Shift of Climatic Belts in China During the Last 50 Years and the Corresponding Seasonal Responses04-26

The diurnal and seasonal characteristics of urban heat island variation in Beijing city and surrounding areas and impact04-29

On the Variability and Correlation of Surface Ozone and Carbon Monoxide Observed in Hong Kong Using Trajectory and Regre04-26

Vertical characteristics revealed by biweekly and synoptic variability of upper sea temperature in the northern South Ch04-29

Spatio-temporal variability in sea surface wind stress near and off the east coast of Korea04-28