Vaisala Radiosonde RS41 GNSS-based Height and Pressure Technical Paper

This technical paper introduces GNSS-based height and atmospheric pressure measurements utilizing the Vaisala Radiosonde RS41 and associated sounding systems. It outlines the GNSS technology employed in the RS41, detailing the components and algorithms that enhance measurement accuracy and reliability. The paper discusses the performance evaluation of GNSS-based measurements, comparing them to traditional sensor-based methods. It also provides a comprehensive analysis of measurement performance, including uncertainty analysis and reproducibility across different geographical locations. The document includes recommendations for selecting GNSS-based pressure measurement methods in various environments, emphasizing the advantages of using multi-GNSS technology to improve accuracy and resilience against GPS interference. Furthermore, it presents a summary of performance specifications and the operational capabilities of the RS41 radiosonde, highlighting its integration with existing systems and the advancements enabled by the Cirrus Sounding System MW51. The findings fulfill WMO recommendations for high accuracy in radiosonde data applications.