On the use of the GRACE normal equation of inter-satellite tracking data for estimation of soil moisture and groundwater in Australia

Tangdamrongsub, Natthachet; Han, Shin-Chan; Decker, Mark; Yeo, In-Young; Kim, Hyungjun

doi:https://doi.org/10.5194/hess-22-1811-2018

Articles | Volume 22, issue 3

https://doi.org/10.5194/hess-22-1811-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/hess-22-1811-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 22, issue 3

Research article

|

13 Mar 2018

Research article |

| 13 Mar 2018

On the use of the GRACE normal equation of inter-satellite tracking data for estimation of soil moisture and groundwater in Australia

Natthachet Tangdamrongsub, Shin-Chan Han, Mark Decker, In-Young Yeo, and Hyungjun Kim

Data sets

ITSG-Grace2016 - Monthly and Daily Gravity Field Solutions from GRACE T. Mayer-Gürr, S. Behzadpour, M. Ellmer, A. Kvas, B. Klinger,and N. Zehentner https://doi.org/10.5880/icgem.2016.007

Short summary

We present a new approach to improve the water storage estimate. Our approach combines GRACE's raw data (least-squares normal equation) with the results from the Community Atmosphere Land Exchange (CABLE) model. No post-processing filter is applied to GRACE data, and the full GRACE signal and error information are exploited. The approach is applied over 10 Australian river basins, and the evident improvement of the water storage estimate, particularly groundwater component, is clearly observed.