Map of distal flow field

Map of distal flow field...

Detailed Description

This large-scale map uses a satellite image acquired in March 2014 (provided by Digital Globe) as a base to show the area around the front of KÄ«lauea's active East Rift Zone lava flow. The area of the flow on February 27 is shown in pink, while widening and advancement of the flow as of March 10 is shown in red. The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths.

Details

Image Dimensions: 3300 x 2550

Date Taken: