TY - JOUR

T1 - ОПЫТ ПРИМЕНЕНИЯ РАЗЛИЧНЫХ КОМБИНАЦИЙ ИСТОЧНИКОВ ИСХОДНОЙ ИНФОРМАЦИИ ПРИ РАСЧЕТЕ СУТОЧНЫХ УРОВНЕЙ ВОДЫ ПЕРИГЛЯЦИАЛЬНОГО ОЗЕРА

AU - Пряхина, Галина Валентиновна

AU - Зелепукина, Елена Сергеевна

AU - Зырянова, Дарья Сергеевна

AU - Кузнецова, Мария Руслановна

AU - Распутина, Валерия Алексеевна

PY - 2026

Y1 - 2026

N2 - In the absence of hydrological information, a model for calculating daily levels of periglacial lakes is proposed. The model is based on water balance relationships for different altitude intervals and takes into account the type of the catchment surface. The choice of the modelling object is due to the availability of field glaciological, meteorological, actinometric and hydrological data measured directly in the catchment area located on the northern macroslope of the South-Chuya Ridge during two ablation seasons. The input data required for modelling were conditionally divided into three blocks: meteorological data without precipitation, precipitation and actinometric data; and the network of state meteorological stations, reanalysis, reference and scientific literature, as well as field data were used as the main (open) sources of initial data. The paper presents the results of modelling water levels obtained with various combinations of sources of initial information. Comparison of the calculated and observed levels showed the possibility of using any sources of information, with the best convergence revealed in calculations based on field data. In mountainous conditions, it is preferable to use data from global weather reanalysis models as an alternative source of information on precipitation due to better interpolation of meteorological station data and consideration of the altitude-exposure features of mountainous areas. In the absence of measured actinometric data, the use of regional values for calculating the melting layer gives a satisfactory result. It was revealed that for unexplored high-mountain basins, the optimal combination of information sources for modeling daily water levels is: meteorological data (excluding precipitation) - from a network meteorological station, precipitation - from reanalysis, actinometric characteristics - from literary data.

AB - In the absence of hydrological information, a model for calculating daily levels of periglacial lakes is proposed. The model is based on water balance relationships for different altitude intervals and takes into account the type of the catchment surface. The choice of the modelling object is due to the availability of field glaciological, meteorological, actinometric and hydrological data measured directly in the catchment area located on the northern macroslope of the South-Chuya Ridge during two ablation seasons. The input data required for modelling were conditionally divided into three blocks: meteorological data without precipitation, precipitation and actinometric data; and the network of state meteorological stations, reanalysis, reference and scientific literature, as well as field data were used as the main (open) sources of initial data. The paper presents the results of modelling water levels obtained with various combinations of sources of initial information. Comparison of the calculated and observed levels showed the possibility of using any sources of information, with the best convergence revealed in calculations based on field data. In mountainous conditions, it is preferable to use data from global weather reanalysis models as an alternative source of information on precipitation due to better interpolation of meteorological station data and consideration of the altitude-exposure features of mountainous areas. In the absence of measured actinometric data, the use of regional values for calculating the melting layer gives a satisfactory result. It was revealed that for unexplored high-mountain basins, the optimal combination of information sources for modeling daily water levels is: meteorological data (excluding precipitation) - from a network meteorological station, precipitation - from reanalysis, actinometric characteristics - from literary data.

KW - Nekrasov Glacier

KW - South-Chuya Ridge

KW - high-mountain lakes

KW - mathematical modelling of water levels

UR - https://elibrary.ru/cnjjvy

UR - https://www.mendeley.com/catalogue/0d8c495d-4ce3-32d6-afb6-27cc432e96c4/

U2 - 10.21638/spbu07.2026.102

DO - 10.21638/spbu07.2026.102

M3 - статья

VL - 71

SP - 26

EP - 40

JO - Вестник Санкт-Петербургского университета. Науки о Земле

JF - Вестник Санкт-Петербургского университета. Науки о Земле

SN - 2541-9668

IS - 1

ER -