4D tropospheric tomography using GPS slant wet delays

  title={4D tropospheric tomography using GPS slant wet delays},
  author={Alex Avelar Flores and Giulio Ruffini and Antonio Rius},
  journal={Annales Geophysicae},
Tomographic techniques are successfully applied to obtain 4D images of the tropospheric refractivity in a local dense network of global positioning system (GPS) receivers. We show here how GPS data are processed to obtain the tropospheric slant wet delays and discuss the validity of the processing. These slant wet delays are the observables in the tomographic processing. We then discuss the inverse problem in 4D tropospheric tomography making extensive use of simulations to test the system and… 

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