https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 GRACE observed mass loss in the middle and lower Yangtze basin https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:44988 Wed 26 Oct 2022 09:28:30 AEDT ]]> Intensified water storage loss by biomass burning in Kalimantan: detection by GRACE https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:34646 -1 and 0.55 ± 0.10 cm yr-1, respectively. We use GRACE estimates, burned area, carbon emissions, and hydroclimatic data to study the relationship between biomass burning and water storage losses. The analysis shows that extensive biomass burning results in excessive evapotranspiration, which then increases long-term water storage losses in the fire-prone region of Kalimantan. Our results show the potentials of GRACE and its follow-on missions in assisting water storage and fire managements in a region with extensive biomass burning such as Kalimantan.]]> Wed 19 Jan 2022 15:16:59 AEDT ]]> Assimilation of GRACE Follow‐On Inter‐Satellite Laser Ranging Measurements Into Land Surface Models https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:51446 Wed 06 Sep 2023 10:21:03 AEST ]]> Quantifying water storage change and land subsidence induced by reservoir impoundment using GRACE, Landsat, and GPS data https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:46606 2. In this paper, a forward model is developed to determine the increased water surface level corresponding to GRACE observations, estimated to be about 120 m. In contrast to GRACE, the TWS derived from land surface models cannot capture the increased ΔTWS, due to the lack of reservoir routing algorithms in the models. In addition, the land subsidence was calculated using the disk load model constructed based on the GRACE-derived lake level and Landsat-derived lake extent; the result is validated with the GPS data from BIN1 station, located at the western coast of Borneo. The commencement stage of the Bakun Dam induces the large-scale land subsidence, which causes the GPS-BIN1 station to subside by ~9 mm, and move toward the Bakun Lake by ~4 mm. Computation of the surface displacements directly from GRACE spherical harmonic coefficient data fails to capture the subsidence feature, mainly due to the truncation error. Overall, this study demonstrates that evaluating GRACE in conjunction with Landsat, LSMs, and GPS data allows the exploitation of the gravity signal at a much smaller spatial scale than its intrinsic resolution. Benefiting from global coverage, the newly developed satellite-based algorithm is a valuable tool for assessing the impacts of reservoir operation on hydrological and geophysical changes from local to regional scales.]]> Tue 14 May 2024 10:25:42 AEST ]]> On the use of GRACE normal equation of intersatellite tracking data for improved estimation of soil moisture and groundwater in Australia https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:34990 Tue 03 Sep 2019 18:01:47 AEST ]]> Identifying flood events over the Poyang Lake Basin using multiple satellite remote sensing observations, hydrological models and in situ data https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:34927 Tue 03 Sep 2019 17:58:44 AEST ]]> Improved water storage estimates within the North China Plain by assimilating GRACE data into the CABLE model https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39939 in-situ groundwater level data in the NCP. Compared to the model computation, there was a significant improvement in terms of cross correlation, on average, from 0.12 (before assimilation) to 0.54 (after assimilation). This study demonstrates the effectiveness of GRACE data assimilation toward reliable estimation of ground water storage variation in the NCP, and its promise to quantify the potential implication of water supply from the South-to-North Water Transfer Project within the NCP.]]> Thu 30 Jun 2022 13:40:45 AEST ]]> Multivariate data assimilation of GRACE, SMOS, SMAP measurements for improved regional soil moisture and groundwater storage estimates https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:40976 Thu 21 Jul 2022 08:52:16 AEST ]]> Improving regional groundwater storage estimates from GRACE and global hydrological models over Tasmania, Australia https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:40003 Thu 14 Jul 2022 13:18:17 AEST ]]> Improving estimates of water resources in a semi-arid region by assimilating GRACE data into the PCR-GLOBWB hydrological model https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:31118 Thu 09 Aug 2018 11:37:36 AEST ]]> Sediment-mass accumulation rate and variability in the East China Sea detected by GRACE https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:26688 Thu 09 Aug 2018 11:37:07 AEST ]]> Characterizing drought and flood events over the Yangtze River Basin using the HUST-Grace2016 solution and ancillary data https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:32889 Mon 23 Sep 2019 12:24:56 AEST ]]> Estimation and reduction of random noise in mass anomaly time-series from satellite gravity data by minimization of month-to-month year-to-year double differences https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:44595 Mon 17 Oct 2022 15:14:33 AEDT ]]> Evaluation of groundwater storage variations estimated from GRACE data assimilation and state-of-the-art land surface models in Australia and the North China Plain https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:35025 Fri 31 May 2019 16:24:59 AEST ]]> Vertical and horizontal spheroidal boundary-value problems https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:42268 Fri 19 Aug 2022 14:23:24 AEST ]]>