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Global hydrological and land surface models are increasingly used for tracking terrestrial total water storage (TWS) dynamics, but the utility of existing models is hampered by conceptual and/or data uncertainties related to various…

The Gravity Recovery and Climate Experiment (GRACE) satellite and its successor GRACE Follow-On (GRACE-FO) provide valuable and accurate observations of terrestrial water storage anomalies (TWSAs) at a global scale. However, there is an…

大气与海洋物理 · 物理学 2021-11-30 Shaoxing Mo , Yulong Zhong , Xiaoqing Shi , Wei Feng , Xin Yin , Jichun Wu

The gravimetry measurements from the Gravity Recovery and Climate Experiment (GRACE) and its follow-on (GRACE-FO) satellite mission provide an essential way to monitor changes in ocean bottom pressure ($p_b$), which is a critical variable…

地球物理 · 物理学 2025-02-20 Junyang Gou , Lara Börger , Michael Schindelegger , Benedikt Soja

While the main causes of the temporal gravity variations observed by the GRACE space mission result from water mass redistributions occurring at the surface of the Earth in response to climatic and anthropogenic forcings (e.g., changes in…

地球物理 · 物理学 2020-12-22 Mioara Mandea , Véronique Dehant , Anny Cazenave

The depletion and variations of groundwater storage~(GWS) are of critical importance for sustainable groundwater management. In this work, we use Gravity Recovery and Climate Experiment (GRACE) to estimate variations in the terrestrial…

信号处理 · 电气工程与系统科学 2021-11-22 Yahya Sattar , Zubair Khalid

Hydrogeodesy can benefit greatly from the use of Global Positioning System (GPS) displacements to analyse local changes in the hydrosphere, which the commonly used Gravity Recovery and Climate Experiment (GRACE) mission is unable to provide…

地球物理 · 物理学 2024-01-18 Gael Kermarrec , Anna Klos , Artur Lenczuk , Janusz Bogusz

Global total water storage anomaly (TWSA) products derived from the Gravity Recovery and Climate Experiment (GRACE) and its Follow-On mission (GRACE-FO) are critical for hydrological research and water resource management. However,…

地球物理 · 物理学 2025-04-14 Yu Gao , Wenyuan Zhang , Junyang Gou , Shubi Zhang , Yang Liu , Benedikt Soja

The Gravity Recovery and Climate Experiment (GRACE) provides quantitative measures of terrestrial water storage (TWS) change. GRACE data show a significant decrease in TWS in the lower (southern) La Plata river basin of South America over…

地球物理 · 物理学 2010-11-22 J. L. Chen , C. R. Wilson , B. D. Tapley , L. Longuevergne , Z. L. Yang , B. R. Scanlon

We describe the new global land water storage data set GLWS2.0, which contains total water storage anomalies (TWSA) over the global land except for Greenland and Antarctica with a spatial resolution of 0.5{\deg}, covering the time frame…

地球物理 · 物理学 2023-08-09 Helena Gerdener , Jürgen Kusche , Kerstin Schulze , Petra Döll , Anna Klos

Earth System Models (ESM) are our main tool for projecting the impacts of climate change. However, running these models at sufficient resolution for local-scale risk-assessments is not computationally feasible. Deep learning-based…

计算机视觉与模式识别 · 计算机科学 2025-07-08 Paula Harder , Luca Schmidt , Francis Pelletier , Nicole Ludwig , Matthew Chantry , Christian Lessig , Alex Hernandez-Garcia , David Rolnick

Models that seek to explain cosmic acceleration through modifications to General Relativity (GR) evade stringent Solar System constraints through a restoring, screening mechanism. Down-weighting the high density, screened regions in favor…

宇宙学与河外天体物理 · 物理学 2018-01-30 Georgios Valogiannis , Rachel Bean

Redshift space distortion (RSD) observed in galaxy redshift surveys is a powerful tool to test gravity theories on cosmological scales, but the systematic uncertainties must carefully be examined for future surveys with large statistics.…

宇宙学与河外天体物理 · 物理学 2015-06-17 Takashi Ishikawa , Tomonori Totani , Takahiro Nishimichi , Ryuichi Takahashi , Naoki Yoshida , Motonari Tonegawa

Global warming is affecting our Earth's environment. For example, sea level is rising with thermal expansion of water and fresh water input from the melting of continental ice sheets due to human-induced global warming. However, observing…

地球物理 · 物理学 2016-11-17 Shuanggen Jin , Liangjing Zhang , Guiping Feng

The Gravity Recovery and Climate Experiment (GRACE) satellite mission, spanning from 2002 to 2017, has provided a valuable dataset for monitoring variations in Earth's gravity field, enabling diverse applications in geophysics and…

机器学习 · 计算机科学 2023-08-21 Neda Darbeheshti , Elahe Moradi

Deep learning models have shown great promise in diverse remote sensing applications. However, they often struggle to generalize across geographic regions unseen during training due to domain shifts. Domain shifts occur when data…

计算机视觉与模式识别 · 计算机科学 2026-04-07 Sofiane Bouaziz , Adel Hafiane , Raphael Canals , Rachid Nedjai

Urbanization, climate change, and agricultural stress are increasing the demand for precise and timely environmental monitoring. Land Surface Temperature (LST) is a key variable in this context and is retrieved from remote sensing…

计算机视觉与模式识别 · 计算机科学 2025-12-11 Sofiane Bouaziz , Adel Hafiane , Raphael Canals , Rachid Nedjai

Geophysical methods offer several key advantages over conventional subsurface measurement approaches, yet their use for hydrologic interpretation is often problematic. Here, we introduce theory and concepts of a novel Bayesian approach for…

地球物理 · 物理学 2017-01-09 N. Linde , J. A. Vrugt

Environmental modeling faces critical challenges in predicting ecosystem dynamics across unmonitored regions due to limited and geographically imbalanced observation data. This challenge is compounded by spatial heterogeneity, causing…

机器学习 · 计算机科学 2025-11-18 Shiyuan Luo , Chonghao Qiu , Runlong Yu , Yiqun Xie , Xiaowei Jia

Spatial data are often derived from multiple sources (e.g. satellites, in-situ sensors, survey samples) with different supports, but associated with the same properties of a spatial phenomenon of interest. It is common for predictors to…

We present the first extensive analysis of K/Ka-band ranging post-fit residuals of an official Level-2 product, characterised as Line-of-Sight Gravity Differences (LGD), which exhibit and showcase interesting sub-monthly geophysical…

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