More flood maps of New Orleans (see this morning’s entry). Kathryn Cramer, whose blog has turned into an immense resource for Hurricane Katrina information, links to a Google Maps hack that shows the approximate water depth in flooded areas; because of the limitations of Google Maps, it’s a bit of a kludge, in that you click on a point and get a textual response rather than something more, well, cartographic, but it’s useful nonetheless. She also points to Flood Level Maps, which models which areas are flooded and which aren’t — it doesn’t indicate depth, but it’s somewhat easier to parse than satellite and aerial imagery that can be ambiguous in many instances.