New Cones: N1, N2, N3, and Yuzhniy

Erupted 1975-1976

Average slope:31.9 (ASTER), 31.7 (Map)

Old cones: Kamenistaya, Krasniy, Camp, Stariy, and Alaid

Erupted 1500-1700 years ago

Average Slope:26.3 (ASTER), 27.1 (Map)

Conclusions• Topographic map height values match closely with DEM models

• Vertical RMSE values (Root Mean Square Error) were higher (3x) than the horizontal values especially for the older cones.

• Humid climate: precipitation ranging from 2500 mm/year (east coast) to 500-800mm/year (central) winters are cool and snowy, summers are wet and cloudy

• Climate conditions and vegetation cover determine high rates of erosion and rapid morphological changes, although variability is based on composition of the cones.

• H/W ratios are consistent with published data for several areas of the world with differing climates although the erosional processes in the Kamachatka region are more intensive than published values.

• Peaks of erosion occurred in the first stage 1 to 2 years after eruption as eruptive ashes are stripped from surface, as well as after forest fires

• ASTER DEM data and topographic map data clearly supports the association of younger cones having a higher h/w ratio and slope values while the older cones have a lower h/w ratio and slope values.