Sentences with phrase «gravitational field measurements»

Figure 2: Greenland (a) and Antarctic (b) mass change deduced from gravitational field measurements by Velicogna (2009) and best - fits with 5 - year and 10 - year mass loss doubling times.

Not exact matches

«An atom interferometer uses the quantum «wave - like» nature of atoms in order to make very precise measurements of accelerations, rotations, and gravitational fields»

Two of them will be part of the GRAIL mission — the Gravity Recovery and Interior Laboratory — now starting to make extremely precise measurements of the lunar gravitational field.

But there is reason to suspect that gravitational energy is a special case, that measurements of sufficient accuracy might expose a violation of the equivalence principle when energy is stored in a gravity field.

More surprises came from preliminary measurements of Jupiter's gravitational field (that is, the strength and direction of the planet's gravity at different points in space).

Atomic clocks of the previous generation, with significantly lower precision, are currently being used in applications including satellite navigation systems, high - capacity wireless networks (wi - fi), ensuring the security of bank communications, and also taking measurements of the Earth's gravitational field, yielding insight into its internal geological structure.

Geoid measurements use satellite readings of Earth's gravitational field, but they are limited to a resolution of about 400 kilometres.

Historically, measurements of our solar system's gravity created by our sun have been used to try and detect the fifth force, but that has proven difficult because its gravitational field is relatively weak.

Vesta has an iron core, formed during the period in which the protoplanet was molten, at the earliest epoch of the Solar System; Dawn's measurements of Vesta's gravitational field have confirmed this.

Taking models of galaxies from the Hubble Space Telescope Ultra Deep Field (HUDF) and applying a correction for the HUDF point spread function we generate lensed simulations of deep, opti... ▽ More We present a simulation analysis of weak gravitational lensing flexion and shear measurement using shapelet decomposition, and identify differences between flexion and shear measurement noise in deep survey data.

To conduct the research, a team of scientists led by John Fasullo of the US National Center for Atmospheric Research in Boulder, Colorado, combined data from three sources: NASA's GRACE satellites, which make detailed measurements of Earth's gravitational field, enabling scientists to monitor changes in the mass of continents; the Argo global array of 3,000 free - drifting floats, which measure the temperature and salinity of the upper layers of the oceans; and satellite - based altimeters that are continuously calibrated against a network of tide gauges.

A measurement comparing these systems demonstrates an unprecedented atomic clock instability of 1.6 × 10 ^ -18 after only 7 hours of averaging... Clock measurement at the 10 ^ -18 level can be used to resolve spatial and temporal fluctuations equivalent to 1 cm of elevation in Earth's gravitational field (25 — 28), potentially impacting geodesy, hydrology, geology, and climate change studies.

GRACE precisely measures the distance between the two spacecraft in order to make detailed measurements of the Earth's gravitational field.