1. Sampling Time: 2019.02；2019.10；2020.02

2. Parameters: temperature, salinity,pH, nutrient, TSM, Chla,POC

3. Sampling location: Negombo lagoon and the adjacent coastal waters

More water quality data may be available from other scientific groups, please contact staff for details

figure1. Sampling locations in the Negombo Lagoon and the adjacent coastal waters

figure2. The distribution of (A) surface temperature, (B) DO, (C) pH, (D) TSM, (E) Chl-a, (F) POC, (G) DOC, (H) PO₄, (I) SiO₃ and (J) DIN along the salinity gradient in dry season.

figure3. The distribution of (A) surface temperature, (B) DO, (C) pH, (D) TSM, (E) Chl-a, (F) POC, (G) DOC, (H) PO₄, (I) SiO₃ and (J) DIN along the salinity gradient in wet season.