Gagetown temperature data 1925-2012

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.

 

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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.

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