Performance of the Decagon Rain Gauge model ECRN (13402-00 AN)
The purpose of this study was to identify the capabilities of Decagon Devices’ rain gauge (hereafter know as DRG) under field circumstances. The focus of the study wasn’t to discover the DRG’s accuracy, it was to compare the DRG with other routinely used rain gauges. This angle was taken because of the difficulty in establishing the exact amount of water put down in a natural setting. Without knowledge of the exact amount of water, an accuracy value can’t be assigned to the DRG because there isn’t a standard that the rain gauges results can be compared with. The difficulty in establishing a standard is due to the many more variables that are present in the field as opposed to those present in the laboratory (wind, water distribution, water deflection, etc.). While these variables cause the problems in establishing a standard, they are also the reason tests were needed in the field to determine the DRG’s performance.
Download now to read the full article.