This study focused upon the estimation and analysis of terrestrial water storage (TWS changes) across Canadian landscape. The was performed using Gravity Recovery Climate Experiment (GRACE) data from April 2002 to June 2017, GRACE Follow-On (GRACE-FO) observations 2018 December 2019. Removing gravity effects Glacial Isostatic Adjustment (GIA) signals leakage is required have realistic estimatio...

Introduction NASA’s Gravity Recovery and Climate Experiment (GRACE), which is a joint mission of the United States and Germany, uses a pair of coupled satellites to measure spatial and temporal changes in the Earth’s gravity field. From these data, estimates of changes (time-variable anomalies) in mass are derived. In turn, the mass changes are attributed primarily to changes in water content (...

[1] The purpose of this work is to investigate the feasibility of downscaling Gravity Recovery and Climate Experiment (GRACE) satellite data for predicting groundwater level changes and, thus, enhancing current capability for sustainable water resources management. In many parts of the world, water management decisions are traditionally informed by in situ observation networks which, unfortunat...

The measurement of total basin discharge along coastal regions is necessary for understanding the hydrological and oceanographic issues related to the water and energy cycles. However, only the observed streamflow (gauge-based observation) is used to estimate the total fluxes from the river basin to the ocean, neglecting the portion of discharge that infiltrates to underground and directly disc...

0022-1694/$ see front matter 2011 Published by doi:10.1016/j.jhydrol.2011.10.025 ⇑ Corresponding author. Present address: Bureau o School of Geosciences, University of Texas at Austi Tel.: +1 512 475 6190. E-mail address: [email protected] (A.Y. Sun). Regional groundwater models are increasingly used for shortand long-termwater resources planning, in anticipation of greater climate variability and ...

The Gravity Recovery and Climate Experiment (GRACE) delivers monthly gravity fields since it was launched in March 2002, which provides a new way to monitor the groundwater storage variations for large regions. In this study, we attempt to apply the GRACE data combined with estimated soil moisture based on the water balance approach to estimate monthly groundwater changes in the western Kansas ...

The solid Earth deforms elastically in response to variations of surface atmosphere, hydrology, and ice/glacier mass loads. Continuous geodetic observations by Global Positioning System (CGPS) stations and Gravity Recovery and Climate Experiment (GRACE) record such deformations to estimate seasonal and secular mass changes. In this paper, we present the seasonal variation of the surface mass ch...

[1] The satellite Gravity Recovery and Climate Experiment (GRACE) provides data describing monthly changes in the geoid, which are closely related to changes in vertically integrated terrestrial water storage. Unlike conventional point or gridded hydrologic measurements, such as those from rain gauges, stream gauges, rain radars, and radiometric satellite images, GRACE data are sets of Stokes c...

The timing of grace notes in skilled musical performance at different tempi: a preliminary case study. (2001) The timing of grace notes in skilled musical performance at different tempi: a preliminary case study. Abstract An empirical study is reported which investigates the relationship between musical structure and the timing of 11 grace notes in 45 performances by the same performer of a sho...

[1] Water scarcity is a critical issue in semiarid regions; however, regional groundwater monitoring is extremely limited. This study evaluates the ability of the GRACE satellites to monitor groundwater storage in the semiarid High Plains aquifer, United States (450,000 km area), which is subjected to intense irrigation. GRACE-derived terrestrial water storage (TWS) is highly correlated with th...