Creation of thermal regime maps of Arctic rivers in the Asian part of Russia
A.N. VASILENKO, D.V. MAGRITSKY, N.L. FROLOVA
Lomonosov Moscow State University, Moscow, Russia
Keywords: mapping, water temperature, heat flux, mapping methodology, spatio-temporal patterns of thermal regime
Abstract
The article is of a scientific and methodological nature. It outlines the currently applied principles for mapping the thermal regime characteristics of rivers. The paper enumerates and analyzes the problems associated with the data from stationary monitoring used in mapping, proposes solutions to address these issues, and suggests methods for identifying the most up-to-date data under current climatic conditions. Additionally, it examines visualization techniques for thermal regime characteristics, existing challenges in drawing isolines and delineating thermally homogeneous zones, and offers various methods to improve the accuracy of such mapping. The discussion separately covers techniques for verifying the reliability of the resulting cartographic materials. As an example of the successful implementation of the authors’ proposed ideas - based on experience in constructing river thermal regime maps - new maps of mean monthly water temperatures and heat flux modulus are presented. These maps can serve as tools for estimating mean monthly water temperatures and assessing heat flux in hydrologically unstudied rivers.
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