A global analysis of water storage variations from remotely sensed soil moisture and daily satellite gravimetry

Blank, Daniel; Eicker, Annette; Jensen, Laura; Güntner, Andreas

doi:https://doi.org/10.5194/hess-27-2413-2023

Articles | Volume 27, issue 13

https://doi.org/10.5194/hess-27-2413-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-27-2413-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 27, issue 13

Research article

|

04 Jul 2023

Research article |

| 04 Jul 2023

A global analysis of water storage variations from remotely sensed soil moisture and daily satellite gravimetry

Daniel Blank, Annette Eicker, Laura Jensen, and Andreas Güntner

Data sets

ITSG-Grace2018 - Monthly, Daily and Static Gravity Field Solutions from GRACE T. Mayer-Gürr, S. Behzadpour, M. Ellmer, A. Kvas, B. Klinger, S. Strasser, and N. Zehentner https://doi.org/10.5880/ICGEM.2018.003

ESA Soil Moisture Climate Change Initiative (Soil_Moisture_cci): Version 07.1 data collection W. Dorigo, W. Preimesberger, L. Moesinger, A. Pasik, T. Scanlon, S. Hahn, R. Van der Schalie, M. Van der Vliet, R. De Jeu, R. Kidd, N. Rodriguez-Fernandez, and M. Hirschi https://doi.org/10.5285/ea3eb0714dc6402b905fe9f7ee50dbbc

CATDS-PDC L3SM Filtered - 1 day global map of soil moisture values from SMOS satellite CATDS https://doi.org/10.12770/9cef422f-ed3f-4090-9556-b2e895ba2ca8

CATDS-PDC L4SM RZSM - 1 day global map of root zone soil moisture values from SMOS satellite CATDS https://doi.org/10.12770/316e77af-cb72-4312-96a3-3011cc5068d4

SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture, Version 8 P. E. O'Neill, S. Chan, E. G. Njoku, T. Jackson, R. Bindlish, and M. J. Chaubell https://doi.org/10.5067/OMHVSRGFX38O

SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data, Version 6 R. Reichle, G. De Lannoy, R. Koster, W. Crow, J. Kimball, and Q. Liu https://doi.org/10.5067/08S1A6811J0U

Short summary

Soil moisture (SM), a key variable of the global water cycle, is analyzed using two types of satellite observations; microwave sensors measure the top few centimeters and satellite gravimetry (GRACE) the full vertical water column. As SM can change very fast, non-standard daily GRACE data are applied for the first time for this analysis. Jointly analyzing these data gives insight into the SM dynamics at different soil depths, and time shifts indicate the infiltration time into deeper layers.