Table 4: Linear precipitation trends (% per decade) in the Svalbard region. Trends significant at the 5% level are bold. The statistical significance of the trends was tested by the Mann-Kendall nonparametric test [21]. The trend analysis for Svalbard Airport and Hopen do not include the latest years because of relocation of gauges. Absolute trends in millimetres may be deduced by combining with the 1961–1990 averages in Table 3.

StationPeriodAnnualWinterSpringSummerAutumn

Ny-Ålesund1969–20114.28,90.2−3.69.1
Svalbard Airport*1912–20051.9−0.31.53.13.4
Isfjord Radio1935–19758.011.28.48.59.6
Hopen1946–19974.67.17.22.91.3
Bjørnøya1920–20113.34.65.60.82.7

Ny-Ålesund1975–20115.415.6−2.7−5.110.9
Bjørnøya1975–20119.413.315.12.08.8

*The Svalbard Airport series is a homogenised composite from other locations before 1975 [11].