The Helio1D prototype pipeline: interfacing between MULTI-VP and the 1D MHD code. From left to right, MULTI-VP takes WSO synoptic magnetograms where the coronal field reconstruction (CORFIELD) was built upon as inputs. MULTI-VP then generates sequences containing the temporal profiles of solar wind parameters at 0.14 AU along the sub-Earth line (labeled as Data prep). Two types of data are generated: (a) historical series and (b) daily series. The data from (b) must be appended first to create a long-time series required by the 1D MHD code. Next, the pre-process step checks validity of the physical values and replaces unphysical values, if necessary. The 1D MHD code then propagates the near-sun solar wind to 1 AU. The post-process step finally produces final outputs as ASCII and CDF files for historical series or daily series.