Recently, I posted on temperature trends at a set of New Brunswick and Nova Scotia air temperature monitoring stations. As I live not too far from Canadian Forces Base Gagetown (New Brunswick, Canada), I decided to add to this topic by downloading and examining the unadjusted mean temperature data from three local surface air temperature stations: Gagetown 2 (Village of Gagetown), Gagetown A, and Gagetown AWOS. The latter two stations are located at CFB Gagetown near the Heliport, while Gagetown 2 is about 20 Km away in the Village of Gagetown. Gagetown AWOS (GAWOS) and then Gagetown A (GA) replaced Gagetown 2 (G2) as monitoring sites several years ago. Data were downloaded from Environment Canada’s Climate Data Online. Data for missing days were estimated from adjacent days, but a few years were omitted where monthly data were missing.
An upward trend can be observed, similar to that seen in the Environment Canada homogenized data set for several New Brunswick surface stations. A linear regression analysis (subject to the cautions regarding autocorrelation in temperature data sets – not likely to be a huge problem here as annual means are being used) shows a significant upward trend with Gagetown 2 data alone (Pr>F = 0.003) or with all data combined (Pr>F = 0.016). The accepted method for analyzing temperature series data collected from different monitoring stations involves subtracting temperature values from the mean of a set time period (e.g. 1951-1980 or 1971-2000). That produces temperature anomalies that can also be plotted against time. I hope to do this at some point. Overall, the data suggest that the Gagetown area is, like other parts of the province, warming in a manner consistent with reported levels of global warming.by