Table 2. Summary of precipitation for July–September for the intensive study years in ROMO.

Wet and dry nitrogen deposition are also included for comparison.

Year	Precipitation			Fraction of time flow upslope	Wet N deposition July–Oct (kg N/ha)	Estimated dry NH3, HNO3, ${\mathrm{NH}}_4^{+}$, NO− deposition (kg N/ha)a
	During upslope (mm)	Total 7/1–9/30	Fraction during upslope
2009	32.6	102	33%	33%	1.24	0.38
2010b	39.9	170.9	26%	23%	0.82	0.25
2014c	62.8	221.8	32%	37%	1.37	0.21
2015	17.1	108.1	18%	25%	0.72	0.28
2016	23.3	60.4	30%	27%	0.85	0.35

Notes.

^aDry ammonia deposition was calculated from daily NH₃ from denuder measurements to keep the calculation consistent across all study years.

^bJuly 1–Sept 20.

^cJuly 7–Sept 30.