Research Article

20-Year Climatology of and Wet Deposition at Ny-Ålesund, Svalbard

Table 1

Mean annual number fraction of samples that deliver less or equal mass to the threshold level, and mass fraction of deposited nitrogen through these samples. The precipitation year as defined in the Section 2 was used for the calculations of the annual mean.

Sample thresholdNumber fractionMass fraction
NitrateAmmoniumNitrateAmmonium

0.5 mg N/m20.540.500.170.11
1 mg N/m20.780.720.390.26
2 mg N/m20.900.860.580.45
3 mg N/m20.930.900.610.53