Results 11 to 20 of about 709,758 (309)

Estimation of Evapotranspiration in the Yellow River Basin from 2002 to 2020 Based on GRACE and GRACE Follow-On Observations

open access: yesRemote Sensing, 2022
Evapotranspiration (ET) plays an important role in the hydrological cycle of river basins. Studying ET in the Yellow River Basin (YRB) is greatly significant for the scientific management of water resources.
Wei Qu   +5 more
doaj   +2 more sources

In-Orbit Performance of the GRACE Follow-on Laser Ranging Interferometer [PDF]

open access: yesPhysical Review Letters, 2019
The Laser Ranging Interferometer (LRI) instrument on the Gravity Recovery and Climate Experiment (GRACE) Follow-On mission has provided the first laser interferometric range measurements between remote spacecraft, separated by approximately 220 km. Autonomous controls that lock the laser frequency to a cavity reference and establish the 5 degrees of ...
Klaus Abich   +82 more
openaire   +9 more sources

Assessment of GRACE/GRACE Follow-On Terrestrial Water Storage Estimates Using an Improved Forward Modeling Method: A Case Study in Africa

open access: yesFrontiers in Earth Science, 2022
Leakage errors derived from spatial filters are the major limitation for estimating terrestrial water storage via the Gravity Recovery and Climate Experiment (GRACE) mission and the recently launched GRACE Follow-On mission.
Hao Zhou   +13 more
doaj   +2 more sources

Scale Factor Determination for the GRACE Follow-On Laser Ranging Interferometer Including Thermal Coupling [PDF]

open access: yesRemote Sensing, 2023
The GRACE follow-on satellites carry the very first interspacecraft Laser Ranging Interferometer (LRI). After more than four years in orbit, the LRI outperforms the sensitivity of the conventional Microwave Instrument (MWI).
Malte Misfeldt   +4 more
doaj   +2 more sources

Twenty-Year Spatiotemporal Variations of TWS over Mainland China Observed by GRACE and GRACE Follow-On Satellites

open access: yesAtmosphere, 2023
Terrestrial water storage (TWS) is a pivotal component of the global water cycle, profoundly impacting water resource management, hazard monitoring, and agriculture production.
Wei Chen   +7 more
doaj   +2 more sources

Revisiting the light time correction in gravimetric missions like GRACE and GRACE follow-on [PDF]

open access: yesJournal of Geodesy, 2020
AbstractThe gravity field maps of the satellite gravimetry missions Gravity Recovery and Climate Experiment (GRACE ) and GRACE Follow-On are derived by means of precise orbit determination. The key observation is the biased inter-satellite range, which is measured primarily by a K-Band Ranging system (KBR) in GRACE and GRACE Follow-On. The GRACE Follow-
Yan, Yihao   +7 more
openaire   +9 more sources

A gap-filling algorithm selection strategy for GRACE and GRACE Follow-On time series based on hydrological signal characteristics of the individual river basins

open access: yesJournal of Geodetic Science, 2023
Gravity recovery and climate experiment (GRACE) and GRACE Follow-On (GRACE-FO) are Earth’s gravity satellite missions with hydrological monitoring applications. However, caused by measuring instrumental problems, there are several temporal missing values
Karimi Hamed   +3 more
doaj   +2 more sources

Continuous Estimates of Glacier Mass Balance in High Mountain Asia Based on ICESat‐1,2 and GRACE/GRACE Follow‐On Data

open access: yesGeophysical Research Letters, 2021
Glacier melt in High Mountain Asia (HMA) is an indicator of climate change and has a major impact on the regional hydrology and freshwater supply.
Qiuyu Wang, Shuang Yi, Wenke Sun
doaj   +2 more sources

Filling the gap between GRACE and GRACE follow-on observations based on principal component analysis

open access: yesGeophysical Journal International, 2023
SUMMARY The Gravity Recovery and Climate Experiment (GRACE) and its successor, GRACE Follow-On (GRACE-FO), have revolutionized the approach to monitoring global mass variations. However, the presence of several gaps, notably the continuous 11-month gap between the two missions, has generated a disruption in observations and hindered the ...
Yanchao Gu   +5 more
openaire   +3 more sources

GRACE Follow-On Accelerometer Data Recovery by High-Precision Environment Modelling

open access: yesAdvances in Space Research, 2022
<p>The Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) satellites are equipped with high-precision three-axis accelerometers to measure all non-gravitational accelerations acting on the satellites. The accelerometer data are mainly used to account for the influence of these accelerations in the gravity-field-recovery process.
Huckfeldt, Moritz   +3 more
openaire   +5 more sources

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