Open AccessUSING SPATIAL DATA TO SIMULATE RAIN RUNOFF
Author(s) -
Olga V. Lovtskaya,
Alexey V. Kudishin,
Anastasiya B. Golubeva
Publication year - 2021
Publication title -
interèkspo geo-sibirʹ
Language(s) - English
Resource type - Journals
ISSN - 2618-981X
DOI - 10.33764/2618-981x-2021-4-1-167-176
Subject(s) - surface runoff , precipitation , hydrology (agriculture) , structural basin , drainage basin , runoff curve number , environmental science , soil texture , soil water , vegetation (pathology) , soil map , spatial analysis , soil science , physical geography , remote sensing , geology , cartography , meteorology , geography , geomorphology , geotechnical engineering , ecology , medicine , pathology , biology
The paper presents the main stages of spatial data preparation for computer models of runoff formation by the example of the Charysh River basin. DEM was employed to construct a system of sub-basins and a hydrological graph as well as to calculate morphometric characteristics of its elements. Sources of data on vegetation and mechanical composition of soils are given Using the Harmonized World Soil Database and the soil map of Altai Krai, a map of soil texture (grain-size composition) of the Charysh River basin was created. Two ways of precipitation accounting (the weather station data; the Persiann-CDR data set) were compared. Calculations of runoff from the the Charysh catchment were made for two models.