The Ability of Wet Deposition Networks to Detect Temporal Trends (1994)

Abstract:

We use the spatial-temporal model developed in Oehlert (1993) to estimate the detectability of trends in wet-deposition sulfate. Precip­itation volume adjustments of sulfate concentration dramatically im­prove the detectability and quantifiability of trends. Anticipated de­creases in sulfate of about 30% in the Eastern U.S. by 2005 predicted by models should be detectable much earlier, say 1997, but accurate quantification of the true decrease will require several additional years of monitoring. It is possible to delete a few stations from the East with­out materially affecting the detectability or quantifiability of trends.