hartman-et-al-2023-primer-xx-1.zip 
contains ensemble member xx's initial conditions for the following ensemble forecasts:
PRIMER-0.01, PRIMER-0.1, PRIMER-0.2, PRIMER-0.3, PRIMER-0.4, PRIMER-0.5, and PRIMER-0.6

hartman-et-al-2023-primer-xx-2.zip
contains ensemble member xx's initial conditions for the following ensemble forecasts:
PRIMER-0.7, PRIMER-0.8, PRIMER-0.9, PRIMER-1.0, Stochastic Qv', and Full EnKF

All forecasts used NCEP GFS 00 UTC 28 August analysis as boundary conditions.