Electronic Atlas
Glaciers of Georgia
Rioni River Basin
Kirtisho
Catalogue data reported the Kirtisho Glacier area as 4.6 km², while SRS corrected it to 4.0 km².
Calculations show that the nonlinear retreat of the Kirtisho Glacier is described with high accuracy by a second-order parabolic curve:    
Y = 0.475x2 – 4.219x + 11.112
a
b
Kirtisho Glacier: a − Schematic image of retreat; b − Retreat graph.
Boko
Boko glacier (R. Rioni basin) area is 4.6. km2 according to the catalogue and correspondingly - 3.7 km2 according to SRS.
The calculations show that the non-linear retreat of the Boko Kirtisho glacier is described with high accuracy by the parabola curve:
Y=0.0635 x2+13.576
a
b
Boko Glacier: a − Schematic image of retreat; b − Retreat graph.
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