Results 111 to 120 of about 404,477 (241)

NASA Report on Cal/Val Activities [PDF]

NASA report on Calibration/Validation activities, including recent launches of ICESat-2, GEDI and OCO ...
Thome, K.
core   +1 more source

Impact of satellite gravity missions on glaciology and Antarctic Earth sciences [PDF]

, 2002
Satellite gravity missions in the 21st Century are expected to be beneficial to multi-disciplinary scientific objectives. Especially, the Gravity Recovery And Climate Experiment (GRACE) and its follow-on missions will provide not only data for precise ...
Koichiro Doi, Shigeru Aoki, Yoichi Fukuda   +2 more
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Mass Loss of Totten and Moscow University Glaciers, East Antarctica, Using Regionally Optimized GRACE Mascons [PDF]

, 2018
Totten and Moscow University glaciers, in the marine-based sector of East Antarctica, contain enough ice to raise sea level by 5 m. Obtaining precise measurements of their mass balance is challenging owing to large area of the basins and the small ...
Mohajerani, Y, Rignot, E, Velicogna, I
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A Joint Analysis of GPS Displacement and GRACE Geopotential Data for Simultaneous Estimation of Geocenter Motion and Gravitational Field [PDF]

Gravitational potential data from GRACE are being used to study mass redistribution within and between the atmosphere, hydrosphere, cryosphere, and solid Earth.
Han, Shin-Chan, Razeghi, Mahdiyeh, Sauber, Jeanne, Simon McClusky   +3 more
core   +1 more source

Interpretable Machine Learning for Thermospheric Mass Density Modeling Using GRACE/GRACE‐FO Satellite Data

Space Weather
With rapid development of artificial intelligence technology, machine learning has been widely applied to the thermospheric mass density (TMD) modeling.
Qian Pan, C. Xiong, Shunzu Gao, Zhou Chen, A. Smirnov, Chunyu Xu, Yuyang Huang   +6 more
semanticscholar   +1 more source

Optimal Design of a Third Pair of Gravity Satellites to Augment Two Existing Polar Pairs to Enhance Earth's Temporal Gravity Field Recovery

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Based on its unique sensitivity to Earth's temporal gravity, and since 2002, the gravity recovery and climate experiment (GRACE) twin satellites, and its successor, GRACE follow-on (GRACE-FO) missions have accumulated a two-decade-long and ...
Zhengwen Yan, Yi Luan, Jiangjun Ran, C. K. Shum, Zhipeng Zeng, Nijia Qian, Yu Zhang, Patrick Smith, Xingchen Pan, Zhiyong Huang   +9 more
doaj   +1 more source

Spatiotemporal variations in terrestrial water storage: A comparative analysis using gravimetry satellite data and water balance methods over Ethiopia

Scientific African
This study examines spatiotemporal variations in terrestrial water storage (TWS) and drought conditions over Ethiopia using Gravity Recovery and Climate Experiment and its Follow-On mission (GRACE (-FO)) satellite data and the water balance method.
Natnael Agegnehu Ayele, Andenet Ashagrie Gedamu, Wondwossen Mindahun, Muralitharan Jothimani   +3 more
doaj   +1 more source

GRACE-FO geopotential GSM coefficients GFZ RL06

, 2019
Spherical harmonic coefficients representing an estimate of Earth's mean gravity field during the specified timespan derived from GRACE-FO mission measurements. These coefficients represent the full magnitude of land hydrology, ice, and solid Earth processes. Further, they represent atmospheric and oceanic processes not captured in the accompanying GAC
Dahle, C., Flechtner, F., Murböck, M., Michalak, G., Neumayer, K., Abrykosov, O., Reinhold, A., König, R.   +7 more
openaire   +1 more source

Assessment of the Effectiveness of GRACE Observations in Monitoring Groundwater Storage in Poland

Water Resources Research
The Gravity Recovery and Climate Experiment (GRACE/GRACE‐FO) mission have been providing global data on terrestrial water storage (TWS) for over 20 years.
Tatiana Solovey, Justyna Śliwińska‐Bronowicz, Rafał Janica, Agnieszka Brzezińska   +3 more
doaj   +1 more source

Data Assimilation Enhancements to Air Force Weathers Land Information System [PDF]

The United States Air Force (USAF) has a proud and storied tradition of enabling significant advancements in the area of characterizing and modeling land state information.
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