Bernese GPS Software Version 5.0 - Bernese GNSS Software

22.9 Atmosphere Related Files
22.9 Atmosphere Related Files
The atmosphere related file types, explained in this section, are listed in Table 22.8.
Table 22.8: Atmosphere related files.
File Description Ext
Troposphere parameter file TRP
Tropospheric SINEX file TRO
Meteo and water vapor radiometer data MET
Ionosphere models ION
Ionosphere IONEX maps INX
22.9.1 Troposphere Parameter File
Type: ASCII
Directory: Campaign-specific directory ATM.
Extension: TRP
Content: Tropospheric zenith delays (estimated).
Created by: GPSEST (”Menu>Processing>Parameter estimation”) or ADDNEQ2 (”Menu>Processing
>Normal equation stacking”).
Used by: The files may be introduced in GPSEST as known into the processing of
other (smaller) networks as a priori troposphere information. In CODSPP
(”Menu>Processing>Code-based clock synchronization”), MAUPRP (”Menu>Processing>Phase
preprocessing”), GPSSIM (”Menu>Service>Generate simulated observation data”) they may
be introduced as known. In ADDNEQ2 the files may be introduced to fix
troposphere parameters to its a priori values).
Example: Figure 22.46 and ${X}/DOC/EXAMPLE.TRP.
The troposphere files contain the following information:
(1) Title.
(2) Header line:
• A priori model:
Saastamoinen = -1,
Hopfield (Remondi) = -2,
Essen and Froome = -3,
Marini-Murray (SLR) = -4,
Saastamoinen with Niell dry mapping = -5,
Saastamoinen dry part only = -11,
Hopfield dry part only = -12,
Simplified Hopfield dry part only = -13,
Saastamoinen dry with Niell dry mapping = -15
The specified a priori troposphere model is used to correct for the main effect of
the tropospheric delay (see also the standard atmosphere model definition in the
file ${X}/GEN/CONST. of Section 22.4.1).
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