Aly I. El-Kadi

A LIDAR Study. An on-going study, in collaboration with SOES's Ben Brooks and his group, is aimed at assessing the hydrology of a low level  area on Oahu using the LIDAR technology. Ground surface was surveyed from the ground level and from a higher elevation point (pictures) and a digital elevation model (DEM) will be developed based on different levels of resolution. Accuracy of surface water flow patterns will be assessed based on various DEM's.


Above ground survey

Ground survey



Preliminary results (color-shaded) compared to ground truthing (black lines)




Preliminary results illustrating main surface water flow  patterns (in blue) towards a stream