Nitrogen concentrations and isotopic compositions of Baffin Bay, Texas and its tributaries obtained from 2020-11-01 to 2022-06-30

This dataset contains nitrogen concentrations and isotopic compositions of Baffin Bay and its tributaries. Sampling in Baffin Bay, Texas was conducted from 2020-11-01 to 2022-06-30 and surface water of six Baffin Bay sites were collected monthly. The surface water samples of tributaries that drain into Baffin Bay sub-watersheds were collected six times before (dry period) and after (wet period) the rain events that occurred in spring 2021, fall 2021, and spring 2022. Surface water was collected at 20 cm below the air-water interface using high density polyethylene (HPDE) bottles.