The correlation between morphometric characteristics, landscape drivers of flow generation and the characteristics of maximum and mean annual river flow in the Avacha River catchment (Kamchatka)
The study was to investigate the flow generation drivers and a landscape driver in particular in the basin of Avacha River (East Kamchatka). In terms of poor meteorological information the actual instrument in the study was analysis of the hydrometeo monitoring data and using methods of remote sensing. First, we created a GIS which included published maps, field data Earth remote sensing (ERS) data and morphometric derivations for the Avacha basin area. We also made actual landscape map for the territory of the Avacha river basin. Our next step was estimation of the effects of morphometric characteristics and distribution of different landscapes on formation of mean and maximum flows on the base of updated hydrological data. In the third step we analyzed effects of the complex of runoff forming factors in the maximum flow during flood periods on the base of the formula of linear regression. It has been revealed, that the spatial distribution of certain landscapes has significant effect in the flow generation in western part of the basin, whereas the relief (morphometrical parameters) was the most contributing factor in the eastern part.