2004年洪季磨刀门测次海流数据集（2004年7月30～31日）

2004年7月30日11时至31日12时中山大学近岸海洋研究中心在珠江磨刀门口区域进行中潮水文同步测验，主要观测项目有逐时水深、流速、流向、水温、悬移质含沙量、盐度（取水样回来室内分析）、风速、风向等，并采集了表层沉积物。

在磨刀门水道至口门设置3个观测点、洪湾水道东、西口各设置1个观测点，合共5个；

各个站点每逢正点用直读式海流计分表层、0.2H、0.6H、0.8H和底层读取流速与流向。

From 11:00 on July 30 to 12:00 on July 31, 2004, the Nearshore Marine Research Center of Sun Yat-sen University conducted a synchronous mid-tide hydrological survey in the Modaomen Estuary area of the Pearl River. The main observation items include hourly water depth, flow velocity, flow direction, water temperature, suspended sediment concentration, salinity (water samples were collected for laboratory analysis), wind speed, wind direction, etc., and surface sediments were also collected during the survey. Three observation stations were set up in the section from the Modaomen Waterway to its estuary, and one station was established at both the eastern and western mouths of the Hongwan Waterway, totaling 5 stations. At each station, flow velocity and flow direction were measured at the surface, 0.2H, 0.6H, 0.8H and bottom layers using a direct-reading current meter at every full hour.