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Incorporating channel survey and floodplain Lidar points.

Question asked by backspace2062 on Jul 16, 2014


I have some questions, I appreciate that if someone could answer.

As I Know lidar technology  can not catch points in channels (under water) and normally in engineering firms, they  get survey for channels  and use lidar for the floodplain, and incorporate them together into a DEM.

My questions are:

1-In which format the survey data should be? (x,y,z format or station elevation format)

2-Is it possible to make geometry from several channel cross section in Arcmap? (Like Hecras)

3-How can I incorporate survey data(channel) and Lidar data(Floodplain) together in Arcmap and make a dem?