An extract refers to the process of obtaining data from either a DSS file or a WISKI database and mapping that data to a model alternative's required input record. The extract retrieves the source data and copies it into records stored in a centralized DSS file called forecast.dss. The forecast.dss file is then used to provide input data during a forecast's compute process. While DSS records can contain both gridded data and time series data, the WISKI connection currently supports time series data. The Extract Editor is used to set up extract groups that retrieve data from a WISKI database.
The Extract Editor allows you to connect required model alternative input data from multiple sources to the forecast.dss file that provides input data to the models during a forecast compute. The required input data is classified into extract groups that link the source data information to the required input records. Information about the Extract Editor and extract groups is detailed in Data Extract and Post Editors. This appendix will provide information on WISKI and KiWIS details.
