Modeling Errors in gps vertical Estimates Signal propagation effects
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 Unmodeled motions of the station
 Signal propagation effects
 Modeling Errors in GPS Vertical Estimates
 Differences in GPS estimates of ZTD at Algonquin, Ny Alessund, Wettzell and Westford computed using static or observed surface pressure to derive the a priori. (Elevationdependent weighting used).
Modeling Errors in GPS Vertical Estimates
Modeling Errors in GPS Vertical Estimates
Modeling Errors in GPS Vertical Estimates
Percent difference (red) between hydrostatic and wet mapping functions for a high latitude (dav1) and midlatitude site (nlib). Blue shows percentage of observations at each elevation angle. From Tregoning and Herring [2006].Difference between a) surface pressure derived from “standard” sea level pressure and the mean surface pressure derived from the GPT model. b) station heights using the two sources of a priori pressure. c) Relation between a priori pressure differences and height differences. Elevationdependent weighting was used in the GPS analysis with a minimum elevation angle of 7 deg.Height (red: simulated; black: estimated) and ZTD (green: simulated; blue: estimated) errors versus latitude as a function of error in surface pressure used to calculate the a priori ZHD. Uniform 10 mm data weighting applied.Height (black/blue) and ZTD (red/green) errors at Davis, Antarctica, for different elevation cutoff angles as a function of error in surface pressure used to calculate the a priori ZHD.. Results shown for both elevationdependent (blue and red results) and constant data weighting (black and green).Modeling Errors in GPS Vertical Estimates
Modeling Errors in GPS Vertical Estimates
Differences in GPS estimates of ZTD at Algonquin, Ny Alessund, Wettzell and Westford computed using static or observed surface pressure to derive the a priori. (Elevationdependent weighting used).Station height estimates for Rio Grande, Argentina, using pressure from heightcorrected STP, GPT and actual observations (MET). Dashed black line shows observed surface pressure; pink line shows atmospheric pressure loading deformation (corrected for in the GPS analyses) , offset by 2.07 m.Katalog: ~simon > gtgk ~simon > The Age of Humanism: Petrarch’s Role Jess Sautter gtgk > Modeling Errors in gps vertical Estimates Signal propagation effects ~simon > Atomy Experimenty ~simon > Art in the Renaissance Dates to Remember Download 479 b. Do'stlaringiz bilan baham: 
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