These data supplement the article: Du, J. and J. Shen, Transport of riverine material from multiple rivers in the Chesapeake Bay: important control of estuarine circulation on the material distribution, under review at the Journal Of Geophysical Research: Biogeoscience contact: Jiabi Du, jiabi@vims.edu Below are descriptions of the data files included here: 1. Monthly mean tracer output [1985-2014] -netCDF format results for monthly mean tracer concentrations from different sources (Susquehanna, Potomac, Rappahannock, York, James Rivers, and Coastal Ocean) -grid information are also included 2. Matlab Scripts For Plotting.zip: -Matlab scripts used to plot the horizontal map, the vertical profile for the along channel section, the vertical profile for cross-channel sections. The script enables users to define the period and section no to plot. 3. tracer influx and outflux ratio at 9 cross-section.xls: -an excel file contains the bottom tracer influx ratio and surface tracer outflux ratio for different rivers at different sections.