Assessing the Sensitivity of a Model of Runoff Formation in the Ussuri River Basinстатья
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 11 апреля 2019 г.
Аннотация:A physically based model of runoff formation with daily resolution has been
developed for the upper part of the Ussuri basin with an area of 24 400 km2 based on
ECOMAG hydrological modeling platform. Two versions of the hydrological model have
been studied: (1) a crude version with the spatial schematization of the drainage area and river
network based on DEM 1 × 1 km with the use of soil and landscape maps at a scale of 1 : 2
500 000 and (2) a detailed version with DEM 80 × 80 m and soil and landscape maps of the
scale of 1 : 100 000. Each version of the model has been tested for two variants of
meteorological inputs: (1) meteorological forcing data (temperature, air humidity,
precipitation) at eight weather stations and (2) with the involvement of additional data on
precipitation collected at 15 gages in the basin. The model has been calibrated and validated
over a 34-year period (1979 – 2012) with the use of runoff data for the Ussuri R. and its
tributaries. The results of numerical experiments for assessing the sensitivity of model
hydrological response to the spatial resolution of land surface characteristics and the density
of precipitation gaging stations are discussed.