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
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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.