Gravity variations determined from GRACE and GRACE-FO monthly solutions for analyzing water mass changes in the Aral Sea
The GRACE large-scale sequent GRACE-FO gravity satellite mission is providing monthly gravity field solutions for almost 20 years enabling a unique opportunity to monitor large-scale mass variation processes. The gravity anomaly time series for the Aral Sea region has been derived for the period of...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | E3S Web of Conferences |
| Subjects: | |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/23/e3sconf_gisca2023_04001.pdf |
| _version_ | 1797808094504288256 |
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| author | Foldvary Lorant Statov Victor Mamutov Nizamatdin Khikmatullaev Sanjar Ergashev Muxammadyusuf |
| author_facet | Foldvary Lorant Statov Victor Mamutov Nizamatdin Khikmatullaev Sanjar Ergashev Muxammadyusuf |
| author_sort | Foldvary Lorant |
| collection | DOAJ |
| description | The GRACE large-scale sequent GRACE-FO gravity satellite mission is providing monthly gravity field solutions for almost 20 years enabling a unique opportunity to monitor large-scale mass variation processes. The gravity anomaly time series for the Aral Sea region has been derived for the period of April 2002 to January 2022. The method of determining gravity anomaly time series from GRACE and GRACE-FO monthly solutions has been improved by taking into account the mass variations of the Caspian Sea. The gravity anomaly time series then has been compared to mass anomaly estimates. For deriving mass anomaly, beyond the available water volume data, density variations were determined by taking into account salinity and temperature changes. Unfortunately, no reliable information either on the salinity or on water temperature changes is available or accessible. Furthermore, not only the data but also the methodology of determining the density is not reliable. Still, the tests suggest that slight improvement in correlation due to the involvement of salinity information occurs. |
| first_indexed | 2024-03-13T06:32:24Z |
| format | Article |
| id | doaj.art-dc7fac21b09b478c8d198d102b9894c7 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-13T06:32:24Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-dc7fac21b09b478c8d198d102b9894c72023-06-09T09:05:57ZengEDP SciencesE3S Web of Conferences2267-12422023-01-013860400110.1051/e3sconf/202338604001e3sconf_gisca2023_04001Gravity variations determined from GRACE and GRACE-FO monthly solutions for analyzing water mass changes in the Aral SeaFoldvary Lorant0Statov Victor1Mamutov Nizamatdin2Khikmatullaev Sanjar3Ergashev Muxammadyusuf4Budapest University of Technology and EconomicsKarakalpak State UniversityKarakalpak State University“Tashkent Institute of Irrigation and Agricultural Mechanization Engineers” National Research UniversityNamangan Institute of Engineering and ConstructionThe GRACE large-scale sequent GRACE-FO gravity satellite mission is providing monthly gravity field solutions for almost 20 years enabling a unique opportunity to monitor large-scale mass variation processes. The gravity anomaly time series for the Aral Sea region has been derived for the period of April 2002 to January 2022. The method of determining gravity anomaly time series from GRACE and GRACE-FO monthly solutions has been improved by taking into account the mass variations of the Caspian Sea. The gravity anomaly time series then has been compared to mass anomaly estimates. For deriving mass anomaly, beyond the available water volume data, density variations were determined by taking into account salinity and temperature changes. Unfortunately, no reliable information either on the salinity or on water temperature changes is available or accessible. Furthermore, not only the data but also the methodology of determining the density is not reliable. Still, the tests suggest that slight improvement in correlation due to the involvement of salinity information occurs.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/23/e3sconf_gisca2023_04001.pdfaral seatemporal variationsgravity anomalysalinitymass anomaly |
| spellingShingle | Foldvary Lorant Statov Victor Mamutov Nizamatdin Khikmatullaev Sanjar Ergashev Muxammadyusuf Gravity variations determined from GRACE and GRACE-FO monthly solutions for analyzing water mass changes in the Aral Sea E3S Web of Conferences aral sea temporal variations gravity anomaly salinity mass anomaly |
| title | Gravity variations determined from GRACE and GRACE-FO monthly solutions for analyzing water mass changes in the Aral Sea |
| title_full | Gravity variations determined from GRACE and GRACE-FO monthly solutions for analyzing water mass changes in the Aral Sea |
| title_fullStr | Gravity variations determined from GRACE and GRACE-FO monthly solutions for analyzing water mass changes in the Aral Sea |
| title_full_unstemmed | Gravity variations determined from GRACE and GRACE-FO monthly solutions for analyzing water mass changes in the Aral Sea |
| title_short | Gravity variations determined from GRACE and GRACE-FO monthly solutions for analyzing water mass changes in the Aral Sea |
| title_sort | gravity variations determined from grace and grace fo monthly solutions for analyzing water mass changes in the aral sea |
| topic | aral sea temporal variations gravity anomaly salinity mass anomaly |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/23/e3sconf_gisca2023_04001.pdf |
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