DYNAMIC NATURE OF HYDROLOGICAL SIMILARITY

Olga Serova, Larisa Timofeeva, Nikolai Reshin, Dmitry Abramov

Abstract


Nowadays, there is a growing interest in understanding how water bodies and their catchments react to environment, landscape and climate change. Runoff change is an integral indicator of climate and landscape changes. Similar landscapes form a similar hydrological catchment response to precipitation. The algorithm for identification of homogeneous groups of catchments (in terms of hydrometeorology) has been developed and tested. The 26 catchments studied are situated in the south-eastern part of the Baltic Sea Basin. Observational data from 1986 to 2016 were used for cluster analysis. Catchments clustering over three consecutive ten-year periods has shown some variability in the clusters content due to changes in the hydrological response of the study catchments. The results obtained were analyzed based on both hydrogrometeorological and landscape characteristics.

Keywords


clustering; landscape-hydrological similarity; runoff characteristics

Full Text:

PDF

References


K. Sawicz, T. Wagener, M. Sivapalan, P. Troch, G. Carrillo. Characterizing hydrologic change through catchment classification. – Hydrol. Earth Syst. Sci., 2014, pp. 273–285.

Hydrological yearbooks. Baltic Sea basin. 1986-2007.

Automated Information System of Water Bodies State Monitoring. https://gmvo.skniivh.ru [Accessed January 5, 2019]

All-Russian Scientific Research Institute of Hydrometeorological Information http://meteo.ru/data [Accessed January 5, 2019]

USSR Surface Water Resources. Karelia and Northwest. 1972

K. Sawicz, T. Wagener, M. Sivapalan, P. Troch, G. Carrillo. Catchment classification: empirical analysis of hydrologic similarity based on catchment function in the eastern USA. Hydrol. Earth Syst. Sci., 2011, pp. 2895–2911.

AlgoWiki. http://algowiki-project.org/ru/k-means [Accessed March 30, 2019]

L. Kurochkina, S. Zhuravlev Spatio-temporal variability in the spring maximum flow of the rivers of the Russian part of the Gulf of Finland basin, 2018, pp. 381-384




DOI: http://dx.doi.org/10.17770/etr2019vol1.4083

Refbacks

  • There are currently no refbacks.