location == Estry Control File (.ecf)

command == Read GIS IWL

description == Used to set the initial water level within a 1D channel or node at the start of a simulation.

wiki link == https://wiki.tuflow.com/index.php?title=TUFLOW_Empty_Files#ESTRY_Control_file_.28ECF.29

manual link == https://www.tuflow.com/Download/TUFLOW/Releases/2017-09/TUFLOW%20Manual.2017-09-AC.pdf
manual page == 338