Troposphere
This class provides functions for calculating and estimating the signal delay in the dry and wet atmosphere.
ViennaMapping
Tropospheric delays based on the Vienna Mapping Functions 3 (VMF3) model (Landskron and Boehm 2017, DOI: 10.1007/s00190-017-1066-2).
Hydrostatic and wet mapping function coefficients ($a_h$, $a_w$) and zenith delays (ZHD, ZWD) have to be provided via inputfileVmfCoefficients. This file can contain either station-specific data (see ViennaMappingFunctionStation2File) or data on a regular global grid (see ViennaMappingFunctionGrid2File). In the second case mapping coefficients and zenith delays are interpolated to the requested coordinates. This includes a height correction that requires approximate meteorological data provided via inputfileGpt.
| Name | Type | Annotation |
|---|---|---|
inputfileVmfCoefficients | filename | ah, aw, zhd, zwd coefficients |
inputfileGpt | filename | gridded GPT data |
aHeight | double | parameter a (height correction) |
bHeight | double | parameter b (height correction) |
cHeight | double | parameter c (height correction) |
GPT
Tropospheric delays based on the Global Pressure and Temperature 3 (GPT3) model (Landskron and Boehm 2017, DOI: 10.1007/s00190-017-1066-2).
It is an empirical model derived from the Vienna Mapping Functions 3 (VMF3, see viennaMapping) and thus does not require additional mapping coefficients and zenith delay values.
| Name | Type | Annotation |
|---|---|---|
inputfileGpt | filename | gridded GPT data |
aHeight | double | parameter a (height correction) |
bHeight | double | parameter b (height correction) |
cHeight | double | parameter c (height correction) |
MendesAndPavlis
Tropospheric delays based on the Mendes-Pavlis model that employs meteorological data. (Mendes et al. (2002), DOI: 10.1029/2001GL014394 and Mendes & Pavlis (2004), DOI:110.1029/2004GL020308)
The meteorological data have to be provided via inputfileStationMeteorology. This file contains the temperature, air pressure and humidity and must be first generated using the programs Crd2NormalPoints, Cstg2NormalPoints, Merit2NormalPoints or Merit2FullRate.
| Name | Type | Annotation |
|---|---|---|
inputfileStationMeteorology | filename |