Although you cannot tell whether an acceleration is due to gravity or any other acceleration from a single measurement, measuring differing accelerations at different points can show whether there's a gravitational gradient along the direction of acceleration.
These models invariably contain, from the very beginning, unstable airspaces and a consequent gravitational gradient of collapse.
It has been shown that progression of pulmonary edema follows a gravitational gradient and in the early phase it involves the basal lobes [13].
Although measuring the acceleration at a single point shows no difference between gravitational acceleration and other forms of acceleration, measuring multiple points along that path would show a difference, due to the uneven gravitational gradient of the surrounding spacetime.
Second, it is hypothesized that pooling of the dense compounds (1.75-1.92 g/ml) along the gravitational gradient causes a redistribution of pulmonary blood flow from dependent to nondependent, better ventilated lung areas, due to a compression of the pulmonary vasculature in the dorsal lung regions [ 7, 8].
Four of the six independent components of the gravitational gradient tensors (GGT) are measured with high accuracy in the so-called measurement band (MB) from 5 to 100 mHz by the GOCE gradiometer.
The components of the gravitational vector and Marussi gravitational gradient tensor, both generated by the ocean density contrast, can be readily derived from the expressions in Eqs.
Fig. 3 Gravitational gradient components (a V rr, (b) and (c) (E = 10−9 s−2).
The integrands of these integrals are combinations of the gravitational gradients and tensor spherical harmonics (which are globally orthogonal).
The DOVCs of the gravitational gradients can be estimated using Proposition 1 based on stochastic model 1.
These solutions are (the solutions are presented without proof; the interested reader is referred to, for example, Martinec, 2003): (1a) (1b) (1c) where and are the geopotential coefficients according to first, second and third combinations of the gravitational gradients, respectively.
