نتایج جستجو برای: the gravity recovery and climate experiment grace

تعداد نتایج: 21200198  

Journal: :Remote Sensing 2016
Kuo-Hsin Tseng Chung-Pai Chang C. K. Shum Chung-Yen Kuo Kuan-Ting Liu Kun Shang Yuanyuan Jia Jian Sun

The Tibetan Plateau (TP) has been observed by satellite optical remote sensing, altimetry, and gravimetry for a variety of geophysical parameters, including water storage change. However, each of these sensors has its respective limitation in the parameters observed, accuracy and spatial-temporal resolution. Here, we utilized an integrated approach to combine remote sensing imagery, digital ele...

Journal: :Remote Sensing 2023

Earthquakes at depths of ≥300 km are generally called deep-focus earthquakes. Only two earthquakes with Mw 8.0 or more have occurred in this century—the 2013 Okhotsk earthquake (Mw 8.3) and the 2018 Fiji 8.2) on 19 August 2018. However, was only reported seismographs, related crustal deformations were not observed by Global Navigation Satellite System because observation network did exist aroun...

Journal: :Remote Sensing 2017
Zhangli Sun Xiufang Zhu Yaozhong Pan Jinshui Zhang

Floods have caused tremendous economic, societal and ecological losses in the Yangtze River Basin (YRB) of China. To reduce the impact of these disasters, it is important to understand the variables affecting the hydrological state of the basin. In this study, we used Gravity Recovery and Climate Experiment (GRACE) satellite data, flood potential index (FPI), precipitation data (Tropical Rainfa...

2011
Keven Roy W. R. Peltier

[1] Recent trends in the two primary anomalies in the rotational state of the planet are analyzed in detail, namely those associated with the speed and direction of polar wander and with the non‐tidal acceleration of the rate of axial rotation (via the measurement of the changing oblateness of the Earth’s shape). It is demonstrated that a significant change in the secular trends in both of thes...

Journal: :Remote Sensing 2014
Guillaume Ramillien Frédéric Frappart Lucía Seoane

Time series of regional 2° × 2° Gravity Recovery and Climate Experiment (GRACE) solutions of surface water mass change have been computed over Africa from 2003 to 2012 with a 10-day resolution by using a new regional approach. These regional maps are used to describe and quantify water mass change. The contribution of African hydrology to actual sea level rise is negative and small in magnitude...

2017
B. Decharme R. Alkama H. Douville M. Becker A. Cazenave H. DOUVILLE A. CAZENAVE

In the companion paper to this one (Part I), the Interactions between Soil, Biosphere, andAtmosphere–Total Runoff Integrating Pathways (ISBA-TRIP) continental hydrological system of the Centre National de Recherches Météorologiques is evaluated by using river discharge measurements and terrestrial water storage (TWS) variations derived from three independent datasets of the Gravity Recovery and...

Journal: :Remote Sensing 2023

Among the Gravity Recovery and Climate Experiment (GRACE) GRACE Follow-on temporal gravity products, north–south stripe noise in spherical harmonic coefficient (SHC) products contaminates inversion of Earth’s mass field. In this study, SHC are adopted to estimate changes Nicaragua. To improve estimation, we propose an empirical low-pass filter suppress noise. After only using our filter, Nicara...

2012
Alexander Y. Sun Ronald Green Sean Swenson Matthew Rodell

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 ...

Journal: :Journal of Hydrology 2021

• We propose a simple and robust method for reconstructing continuous GRACE-like TWSA. Reconstructed data using piecewise trends is better in capturing anomalous change. TWSA detects the Australian drought during gaps 2018. Since 2002, terrestrial water storage anomalies (TWSA) derived from Gravity Recovery Climate Experiment (GRACE) its successor, GRACE Follow-on (GRACE-FO), have been widely u...

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