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Acta Geodynamica et Geomaterialia

 
Title: ANALYSIS OF GROUNDWATER LEVEL VARIATIONS AND WATER BALANCE IN THE AREA OF THE SUDETY MOUNTAINS
 
Authors: Rzepecka Zofia, Birylo Monika, Kuczynska-Siehien Joanna, Nastula Jolanta and Pajak Katarzyna
 
DOI: 10.13168/AGG.2017.0014
 
Journal: Acta Geodynamica et Geomaterialia, Vol. 14, No. 3 (187), Prague 2017
 
Full Text: PDF file (3.5 MB)
 
Keywords: total water storage TWS, water balance, groundwater level, GRACE, GLDAS
 
Abstract: Water is one of the most important components of the environment, having a direct effect on the maintenance of life on the Earth. In this paper, analysis of groundwater level variations, water balance and all the parameters included in these quantities, i.e. precipitation, evapotranspiration, surface run-off and subsurface run-off, were performed in the area of the Sudety Mountains for the period of November 2002 - October 2015. The groundwater level variations were computed on the basis of the mean Terrestrial Water Storage (TWS) values determined from Gravity Recovery and Climate Experiment (GRACE) observations and Global Land Data Assimilation System (GLDAS). TWS data have been determined with a spatial resolution of one degree and temporal resolution of one month. According to the results, groundwater level variation can be approximately determined by water balance changes (with reverse sign). Specifically, for the Sudety area a high average stability of total water storage over the period of past 13 years and decline in groundwater level by about 13 cm (approximately 1 cm/year) was detected.