GRACE, time-varying gravity, Earth system dynamics and climate change
نویسندگان
چکیده
منابع مشابه
GRACE, time-varying gravity, Earth system dynamics and climate change.
Continuous observations of temporal variations in the Earth's gravity field have recently become available at an unprecedented resolution of a few hundreds of kilometers. The gravity field is a product of the Earth's mass distribution, and these data-provided by the satellites of the Gravity Recovery And Climate Experiment (GRACE)-can be used to study the exchange of mass both within the Earth ...
متن کاملDynamics of Earth Climate Evolution
In recent years many attempts have been made in order to investigate the Earth’s global climate evolution. On the basis of the observations, made with the help of the δO content’s isotope analysis in a deep-sea core [1, 2] it has been established that during the last million of years sequence of ice-ages took place on the Earth, lasting nearly 100000 years each. Therefore, during last million y...
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The first 111 days of preliminary data from GRACE were used to produce a map of the Earth’s gravity anomalies. A gravity anomaly map shows us how much the actual Earth’s gravity field departs from “normal” as defined by a simplified mathematical gravity model that assumes the Earth is perfectly smooth and featureless. In this grayscale representation, brighter areas represent positive gravity a...
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Introduction Conclusions References
متن کاملBringing GRACE Down to Earth.
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 (...
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ژورنال
عنوان ژورنال: Reports on Progress in Physics
سال: 2014
ISSN: 0034-4885,1361-6633
DOI: 10.1088/0034-4885/77/11/116801