舟山六横岛附近海域PH值监测管理数据

六横岛拥有大量的水产养殖基地，通过监测六横岛及其附近海域各观测点数据，了解海洋中的pH值变化趋势和异常情况，并对海洋生态环境进行监测和评价，为六横岛海水养殖、海洋工程建设等工作，并为相关用海项目提供数据支撑。通过计算六横岛附近海域历年平均数值，作为海域pH值历史基准数据，将当月该海域平均的pH值数值与pH值基准数据作比（海域当月平均pH值数值/海域pH值历史基准数据），得到该月该海域的pH值指数，如pH值指数在0.9-1.1的，则定义为“正常”，pH值指数在1.1-1.2或0.8-0.9的，则定义为“预警”，pH值指数在0.8以下或者1.2以上的，则定义为“异常”。

Liuheng Island is home to a large number of aquaculture bases. This dataset monitors data from various observation points on Liuheng Island and its adjacent sea areas to identify trends and anomalies in seawater pH levels, as well as to monitor and evaluate the marine ecological environment. It provides data support for mariculture, marine engineering construction and other sea-use related projects on Liuheng Island.
The multi-year average pH values of the adjacent sea areas are calculated as the historical baseline data for seawater pH in the area. The monthly pH index of the sea area is obtained by dividing the monthly average pH value by the historical baseline pH value. Three grading standards are defined for the pH index: "Normal" when the index falls within 0.9–1.1, "Alert" when the index is between 0.8–0.9 or 1.1–1.2, and "Abnormal" when the index is below 0.8 or above 1.2.