use this tool to query gridded data. For an inundation grid, a click will display depth values. For an arrival time grid, a click will display the computed arrival time of flood waters during an event for the point at which you clicked. For a duration grid, it will display values of the duration of water during a flood event for the cell where you click. For a digital terrain model,the tool queries elevation values. This tool is only functional when terrain or inundation grids have been added to a study.