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The components of the model use the Earth System Modeling Framework (ESMF), enabling them to be connected in a flexible manner and supporting the investigation of many different aspects of Earth science, in particular questions related to coupled processes involving the atmosphere, ocean, and/or land. Uses of GEOS span a range of spatiotemporal ...
His solution was a calculator that dispensed with many of the corrections and timing issues seen in devices like the Vickers Predictor which were intended for high-altitude fire. Instead, it made a relatively simple calculation of the impact point based on relative motion as provided by the operator.
EGM96: The NASA GSFC and NIMA Joint Geopotential Model; Earth Gravitational Model 2008 (EGM2008) GeographicLib provides a utility GeoidEval (with source code) to evaluate the geoid height for the EGM84, EGM96, and EGM2008 Earth gravity models. Here is an online version of GeoidEval.
SPICE (Spacecraft Planet Instrument C-matrix Events) is a NASA ancillary information system used to compute geometric information used in planning and analyzing science observations obtained from robotic spacecraft. It is also used in planning missions and conducting numerous engineering functions needed to carry out those missions.
HARDMAN III was a major development effort of the Army Research Institute's (ARI) System Research Laboratory. The contract that supported the work was let in a three-phase development process. [ 8 ] HARDMAN III was government-owned and consisted of a set of automated aids to assist analysts in conducting MANPRINT analyses.
DTED (or Digital Terrain Elevation Data) is a standard of digital datasets which consists of a matrix of terrain elevation values, i.e., a Digital Elevation Model.This standard was originally developed in the 1970s to support aircraft radar simulation and prediction.
One model, the Ascota 170 accounting machine sold in the 1960s, calculated square roots. Mechanical computers can be either analog , using continuous or smooth mechanisms such as curved plates or slide rules for computations; or discrete , which use mechanisms like pinwheels and gears.
Two intermeshing spur gears rotating at different velocity due to differing gear ratio. A gear [1] [2] or gearwheel [3] [4] [5] is a rotating machine part typically used to transmit rotational motion and/or torque by means of a series of teeth that engage with compatible teeth of another gear or other part.