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Radio Occultation
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.Radio occultation (RO) is a remote sensing technique used for measuring the physical properties of a planetary atmosphere. It relies on the detection of a change in a radio signal as it passes through the planet''s atmosphere i.e. as it is occulted by the atmosphere. When electromagnetic radiation passes through the atmosphere it is refracted. The magnitude of the refraction depends on the gradient of refractivity normal to the path, which in turn depends on the gradients of density and the water vapour. The effect is most pronounced when the radiation traverses a long atmospheric limb path. At radio frequencies the amount of bending cannot be measured directly, instead the bending can be calculated using the Doppler shift of the signal given the geometry of the emitter and receiver. The amount of bending can be related to the refractive index by using an Abel transform on the formula relating bending angle to refractivity. In the case of the neutral atmosphere (below the ionosphere) information on the atmosphere''s temperature, pressure and water vapour can be derived, hence radio occultation data has applications in meteorology.
Weitere Informationen
- Allgemeine Informationen
- Titel Radio Occultation
- Format Sachbuch
- EAN 9786131391958
- Größe H220mm x B220mm
- Herausgeber Betascript Publishing
- Editor Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
- Genre Musik, Film & Theater
- Anzahl Seiten 192
- GTIN 09786131391958
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