The radar roughness of the December 1974 Kilauea lava flow was investigated using a template that measured the undulations of the surface at an interval of 2 centimeters horizontal spacing. This part of the a’a flow is about 5 kilometers away from the vent. Compare this view with the roughness of typical pahoehoe flows (slide #29). Photograph courtesy of L. Gaddis. Right click here to download a high-resolution version of the image (8.94 MB) |