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Table 4 Description of analyzed solutions

From: Troposphere delay modeling in SLR based on PMF, VMF3o, and meteorological data

Solution

ZTD bias estimation

Horizontal gradients

Separation of mapping function: wet & dry from NWM

ZHD NWM

ZWD NWM

ZHD M–P

ZWD M–P

Temp. from NWM

Mendes–Pavlis (M–P)

x

x

M–P TRP

x

x

x

VMF3o ZWD TRP

x

x

x

x

x

x

VMF3o ZTD TRP

x

x

x

x

x

x

PMF ZTD TRP

x

x

x

x

x

PMF TRP

x

x

x

x

x

M–P model TRP

x

x

x

x

PMF ZTD no est

x

x

x

x

VMF3o ZTD no est.

x

x

x

x

x

  1. TRP denotes that the trosphere bias is estimated. M–P model denotes using the a prori WGM for horizontal gradients. Temp. denotes temperature