广东海洋大学学报2018，Vol.38Issue(1)：63-72,10.DOI:10.3969/j.issn.1673-9159.2018.01.009
冬春季湖光岩玛珥湖水文特征的观测分析
Analysis of Hydrological Characteristics for Huguangyan Maar Lake with Cruise Data in Winter and Spring
摘要
Abstract
[Objective] Using hydrographic observation in Huguangyan Maar Lake,this study had analyzed the 3D structure and variability of the velocity,temperature,density,buoyancy frequency fields,and the effects of wind on the observations.[Method] We have used three dimensional ultrasonic anemometer,adela current meter,ADCP,CTD to monitor the hydrographic parameter once a month.The field wind speed,velocity,temperature and salinity were analyzed during the period from January to April 2017.[Results]The average surface velocity was about 0.05 m/s.The average surface velocity in January and February was about 0.03 m/s,which was much smaller than that in March and April,about 0.08 m/s.The flow direction is mostly southward or southeast,which is consistent with the observed wind direction.Velocity of subsurface flow was 0.02 m/s,which is smaller than surface flow.At the bottom,the velocity is larger than that in the subsurface flow.The surface water temperature in January and February is about 18.5-21.5 ℃.Water temperature decreased with increase in water depth.Thermocline mainly exist in 2-5 m.The temperature gradient was 0.2 ℃/m.In March and April,water temperature increased to 19-26 ℃.Moreover,thermocline deepened to 6-10 m.The maximum temperature gradient reached 0.8 ℃/m.Surface water temperature in shallow area is much higher than that in deep area.In subsurface,water temperature was much lower than that in surface water.关键词
湖光岩玛珥湖/水文特征/流速分布/层结稳定性Key words
Huguangyan Maar Lake/hydrological characteristics/velocity field/stratification stability分类
海洋科学引用本文复制引用
王丽菊,李君益,谢玲玲,陈法锦,王露,石雨鑫,郑曼立..冬春季湖光岩玛珥湖水文特征的观测分析[J].广东海洋大学学报,2018,38(1):63-72,10.基金项目
广东省高等学校优秀青年教师培养计划(YQ2015088) （YQ2015088）
广东海洋大学创新强校项目(GDOU2016050240,GDOU2014050201,GDOU2013010203) （GDOU2016050240,GDOU2014050201,GDOU2013010203）
广东省自然科学团队项目(2016A030312004) （2016A030312004）
