Image of area around flow front

Satellite image of area around flow front...

Detailed Description

This map uses a satellite image acquired in March 2014 (provided by Digital Globe) as a base to show the area around the front of the June 27th lava flow. The area of the flow on November 5, 2014, at 1:00 PM is shown in pink, while widening and advancement of the flow as mapped on November 7 at 3:30 PM is shown in red. The June 27th flow has moved no closer to Pāhoa Village Road, but breakouts continue along the edges and interior of the flow in several places, including near the Pāhoa cemetery, the transfer station, and north of Kaohe Homesteads. There were also a few breakouts well upslope, closer to Pu‘u ‘Ō‘ō. The dotted blue lines show the pertinent steepest-descent paths, calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/), that the flow is projected to follow. 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 dotted blue line can be used to infer only an approximate flow path.

Details

Image Dimensions: 3300 x 2550

Date Taken: