# GNSS-radiosonde three-year IWV comparisons in the framework of the GRUAN project

Aurélie Panetier, Florian Zus, Galina Dick, Jens Wickert

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Aurélie Panetier, Florian Zus, Galina Dick, Jens Wickert. GNSS-radiosonde three-year IWV comparisons in the framework of the GRUAN project. EGU 25, Apr 2025, Vienne & Online, Austria., 2025, 10.5194/egusphere-egu25-10161. hal-05043602

HAL Id: hal-05043602

https://hal.science/hal-05043602v1

Submitted on 23 Apr 2025

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# GNSS-radiosonde three-year IWV comparisons in the framework of the GRUAN project

Aurélie PANETIER*¹, Florian Zus¹, Galina DICK¹, Jens WICKERT¹,²

1: GFZ Helmholtz Center for Geosciences, Potsdam, Germany

2: TUB, Berlin, Germany

<figure><img src="image_2.png" /></figure>

Figure – Station-wise median and deviation of the IWV difference and their percentage with respect to the GNSS mean IWV value.

Figure – Number of points of the GNSS vs. RS41 comparison for each site. The horizontal distances appear on the abscissa.

<figure><img src="image_3.png" /></figure>

Figure –

Time series of GNSS vs. RS41 comparisons in LIN0.

<figure><img src="image_4.png" /></figure>