Loading...
Please wait, while we are loading the content...
Similar Documents
Analysis of Groundwater and Total Water Storage Changes in Poland Using GRACE Observations, In-situ Data, and Various Assimilation and Climate Models
| Content Provider | MDPI |
|---|---|
| Author | Justyna, Śliwińska Birylo, Monika Rzepecka, Zofia Nastula, Jolanta |
| Copyright Year | 2019 |
| Description | The Gravity Recovery and Climate Experiment (GRACE) observations have provided global observations of total water storage (TWS) changes at monthly intervals for over 15 years, which can be useful for estimating changes in GWS after extracting other water storage components. In this study, we analyzed the TWS and groundwater storage (GWS) variations of the main Polish basins, the Vistula and the Odra, using GRACE observations, in-situ data, GLDAS (Global Land Data Assimilation System) hydrological models, and CMIP5 (the World Climate Research Programme’s Coupled Model Intercomparison Project Phase 5) climate data. The research was conducted for the period between September 2006 and October 2015. The TWS data were taken directly from GRACE measurements and also computed from four GLDAS (VIC, CLM, MOSAIC, and NOAH) and six CMIP5 (FGOALS-g2, GFDL-ESM2G, GISS-E2-H, inmcm4, MIROC5, and MPI-ESM-LR) models. The GWS data were obtained by subtracting the model TWS from the GRACE TWS. The resulting GWS values were compared with in-situ well measurements calibrated using porosity coefficients. For each time series, the trends, spectra, amplitudes, and seasonal components were computed and analyzed. The results suggest that in Poland there has been generally no major TWS or GWS depletion. Our results indicate that when comparing TWS values, better compliance with GRACE data was obtained for GLDAS than for CMIP5 models. However, the GWS analysis showed better consistency of climate models with the well results. The results can contribute toward selection of an appropriate model that, in combination with global GRACE observations, would provide information on groundwater changes in regions with limited or inaccurate ground measurements. |
| Starting Page | 2949 |
| e-ISSN | 20724292 |
| DOI | 10.3390/rs11242949 |
| Journal | Remote Sensing |
| Issue Number | 24 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2019-12-09 |
| Access Restriction | Open |
| Subject Keyword | Remote Sensing Total Water Storage (tws) Groundwater Storage (gws) Grace Gldas Cmip5 |
| Content Type | Text |
| Resource Type | Article |
