@proceedings {834,
	title = {Extreme Values in Short-Term 20 m Sequential Matched WSPR Observations},
	year = {2024},
	month = {03/2024},
	publisher = {HamSCI},
	address = {Cleveland, OH},
	abstract = {<p>Automated amateur radio networks, such as WSPRnet, daily compile data on hundreds of millions of radio contacts. This wealth of information is valuable for researchers exploring and forecasting High-Frequency (HF) propagation and its correlation with solar phenomena. A prerequisite for meaningful investigations is a comprehensive understanding and documentation of the inherent variability present in the data. Prior investigations highlighted the extreme short-term variability in SNR reports from 20-meter sequential matched observations, variability in excess of usual distributional assumptions.\&nbsp; Here, we describe and model those extreme observations.\&nbsp; Using descriptive statistics and logistic regressions, we provide evidence of some temporal and spatial patterns associated with the extreme SNR values and develop predictions for their occurrence.</p>
},
	author = {Robert B. Gerzoff and Nathaniel A. Frissell}
}
