A dataset of physicochemical water parameters from Lima and Douro estuaries (Northwest Portugal)

This dataset provides physicochemical water data collected during five sampling campaigns at two temperate North Atlantic estuaries, the Lima and Douro, in northern Portugal, between 2021 and 2022. The dataset is described in the Data in Brief article “Physicochemical dataset from Lima and Douro estuaries (Northwest Portugal)”.  It includes: a) in-situ vertical profiles of water parameters (temperature, salinity, pH, turbidity, dissolved oxygen), acquired with a multiparameter probe along the water column, from the surface to the bottom, at 8 stations in the Lima estuary (during ebb and flood tides) and 11 stations in the Douro estuary (during flood tide); and b) chemical analyses of nutrients, chlorophyll a, total particulate matter, particulate organic matter, and metal concentrations from 5 representative stations in each estuary. Additional dissolved metal data are provided for the Lima estuary.