Assessing mountain block water storage changes in river basins using water balance and GRACE: A case study on Lake Urmia Basin of Iran
Study region: Lake Urmia Basin (LUB), northwestern Iran, encloses the largest salt lake in Iran, where severe drawdown of the lake water level is causing salt storms that threaten the health of the basin's inhabitants. Study focus: Different in-situ and RS-based datasets are used to estimate th...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-10-01
|
| Series: | Journal of Hydrology: Regional Studies |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581823001982 |
| _version_ | 1797688924666068992 |
|---|---|
| author | Mohammad Mahdi Aghayi Masoud Tajrishy Huade Guan |
| author_facet | Mohammad Mahdi Aghayi Masoud Tajrishy Huade Guan |
| author_sort | Mohammad Mahdi Aghayi |
| collection | DOAJ |
| description | Study region: Lake Urmia Basin (LUB), northwestern Iran, encloses the largest salt lake in Iran, where severe drawdown of the lake water level is causing salt storms that threaten the health of the basin's inhabitants. Study focus: Different in-situ and RS-based datasets are used to estimate the water storage change (WSC) in LUB and partition it into the basin floor WSC and mountain block WSC components. Water balance components for LUB were estimated for the 2001–2011 period, using RS-based datasets for precipitation, actual evapotranspiration, soil moisture and snow storage. Ground-based data were used for validation of RS data as well as water balance closure purpose. GRACE terrestrial water storage data were also used to validate the water balance method results. New hydrological insights for the region: GRACE results confirmed an average WSC of − 921 million cubic meters per year (MCM/yr) (−17.6 mm over the basin area). WSC time series in the basin floor (average: −913 MCM/yr, or −53 mm over the basin floor area) was estimated by summing the related water storage components, and then subtracted from the basin WSC to estimate the mountain block WSC time series (average: −8 MCM/yr, or −0.2 mm over the mountain block area). To evaluate its authenticity, the estimated mountain block WSC time series was then compared to mountain block rivers’ base flow and springs' discharge, showing a considerable correlation between the time series. Considering the faster water resources depletion in the basin floor (where anthropological factors are significant) than in the mountain block (where anthropological factors are rare), one can conclude that anthropological factors may have the primary role in deteriorating water resources conditions in the basin. |
| first_indexed | 2024-03-12T01:38:34Z |
| format | Article |
| id | doaj.art-d5f8080c83104bf59378db128bfaa1f9 |
| institution | Directory Open Access Journal |
| issn | 2214-5818 |
| language | English |
| last_indexed | 2024-03-12T01:38:34Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology: Regional Studies |
| spelling | doaj.art-d5f8080c83104bf59378db128bfaa1f92023-09-11T04:17:14ZengElsevierJournal of Hydrology: Regional Studies2214-58182023-10-0149101511Assessing mountain block water storage changes in river basins using water balance and GRACE: A case study on Lake Urmia Basin of IranMohammad Mahdi Aghayi0Masoud Tajrishy1Huade Guan2Department of Civil Engineering, Sharif University of Technology, Azadi ave., Tehran, Iran; Corresponding author.Department of Civil Engineering, Sharif University of Technology, Azadi ave., Tehran, IranNational Centre for Groundwater Research and Training, College of Science and Engineering, Flinders University, Adelaide, SA 5001, AustraliaStudy region: Lake Urmia Basin (LUB), northwestern Iran, encloses the largest salt lake in Iran, where severe drawdown of the lake water level is causing salt storms that threaten the health of the basin's inhabitants. Study focus: Different in-situ and RS-based datasets are used to estimate the water storage change (WSC) in LUB and partition it into the basin floor WSC and mountain block WSC components. Water balance components for LUB were estimated for the 2001–2011 period, using RS-based datasets for precipitation, actual evapotranspiration, soil moisture and snow storage. Ground-based data were used for validation of RS data as well as water balance closure purpose. GRACE terrestrial water storage data were also used to validate the water balance method results. New hydrological insights for the region: GRACE results confirmed an average WSC of − 921 million cubic meters per year (MCM/yr) (−17.6 mm over the basin area). WSC time series in the basin floor (average: −913 MCM/yr, or −53 mm over the basin floor area) was estimated by summing the related water storage components, and then subtracted from the basin WSC to estimate the mountain block WSC time series (average: −8 MCM/yr, or −0.2 mm over the mountain block area). To evaluate its authenticity, the estimated mountain block WSC time series was then compared to mountain block rivers’ base flow and springs' discharge, showing a considerable correlation between the time series. Considering the faster water resources depletion in the basin floor (where anthropological factors are significant) than in the mountain block (where anthropological factors are rare), one can conclude that anthropological factors may have the primary role in deteriorating water resources conditions in the basin.http://www.sciencedirect.com/science/article/pii/S2214581823001982Water balanceGRACEMountain blockWater Storage ChangeLake Urmia Basin |
| spellingShingle | Mohammad Mahdi Aghayi Masoud Tajrishy Huade Guan Assessing mountain block water storage changes in river basins using water balance and GRACE: A case study on Lake Urmia Basin of Iran Journal of Hydrology: Regional Studies Water balance GRACE Mountain block Water Storage Change Lake Urmia Basin |
| title | Assessing mountain block water storage changes in river basins using water balance and GRACE: A case study on Lake Urmia Basin of Iran |
| title_full | Assessing mountain block water storage changes in river basins using water balance and GRACE: A case study on Lake Urmia Basin of Iran |
| title_fullStr | Assessing mountain block water storage changes in river basins using water balance and GRACE: A case study on Lake Urmia Basin of Iran |
| title_full_unstemmed | Assessing mountain block water storage changes in river basins using water balance and GRACE: A case study on Lake Urmia Basin of Iran |
| title_short | Assessing mountain block water storage changes in river basins using water balance and GRACE: A case study on Lake Urmia Basin of Iran |
| title_sort | assessing mountain block water storage changes in river basins using water balance and grace a case study on lake urmia basin of iran |
| topic | Water balance GRACE Mountain block Water Storage Change Lake Urmia Basin |
| url | http://www.sciencedirect.com/science/article/pii/S2214581823001982 |
| work_keys_str_mv | AT mohammadmahdiaghayi assessingmountainblockwaterstoragechangesinriverbasinsusingwaterbalanceandgraceacasestudyonlakeurmiabasinofiran AT masoudtajrishy assessingmountainblockwaterstoragechangesinriverbasinsusingwaterbalanceandgraceacasestudyonlakeurmiabasinofiran AT huadeguan assessingmountainblockwaterstoragechangesinriverbasinsusingwaterbalanceandgraceacasestudyonlakeurmiabasinofiran |