[G03-P] Poster

[G03-P-05] Evaluation and Analysis of Ground Water Level Changes and Water Budget in the Northeast Poland

^○Joanna Kuczynska-Siehien¹, Zofia Rzepecka¹, Monika Birylo¹, Ewa Andrasik², Jolanta Nastula³ (1.University of Warmia and Mazury in Olsztyn, Olsztyn, Poland, 2.Warsaw University of Technology, Warsaw, Poland, 3.Space Research Centre Polish Academy of Sciences, Warsaw, Poland)

Water is one of the most important component of the environment, having a direct effect on the maintenance of life on the Earth. In this paper, the analyses of changes of groundwater level, water budget and all the parameters included in these quantities, were performed on the area of northeastern Poland, in the period of 2003 – 2016.

The groundwater level (GWL) changes were computed on the basis of the mean Terrestrial Water Storage (TWS) values determined from GRACE observations, completed with data acquired from the Global Land Data Assimilation System (GLDAS). TWS data have spatial resolution of one degree, and temporal resolution of one month, therefore the calculated changes of GWL do also refer to such resolution. The obtained results were evaluated by the comparison with the data acquired from the Hydrological Annual Reports of Polish Hydrological Survey.