This dataset contains input files for model runs used in Leng et al, JGR, 2020, "Origin and Fate of the Chukchi Slope Current Using a Numerical Model and In-situ Data". The model used in this study is an Arctic configuration based on the Massachusetts Institute of Technology general circulation model (MITgcm). Original source code is the MITgcm_c66m. The simulation covers six years from January 2010 to December 2015. Some representative output is also included. code: contains subroutines modified from the original MITgcm codes to accommodate the Arctic configuration and tracer setup. data: representative data to form the figures in the paper. forcing_2010: surface forcing for 2010 from JRA-55. forcing_2011: surface forcing for 2011 from JRA-55. forcing_2012: surface forcing for 2012 from JRA-55. forcing_2013: surface forcing for 2013 from JRA-55. forcing_2014: surface forcing for 2014 from JRA-55. forcing_2015: surface forcing for 2015 from JRA-55. input: contains input parameters and initial/boundary conditions. script: contains scripts to compile the executable code, need to be modified for local computer libraries, etc.