Interpolated daily temperature and precipitation data for Level II ICP Forests plots in Germany

Table 1 Descriptive summary of the dataset for the four interpolated variables. Shown here is the information on the measurement period, when empirical measurements were carried out, information on before the measurement period, quality control criteria, and total number of plots

	Variable	Daily mean air temperature	Daily min. air temperature	Daily max. air temperature	Daily precipitation sum
	Abbreviation	T_mean	T_min	T_max	P
Within measurement period	Time period	1996–2019	1996–2019	1996–2019	1996–2019
	Number of days within this time period	8766	8766	8766	8766
	Average number of daily measurements per plot within this time period which are missing^a	2674	2696	2700	2838
	Percentage of missing measurements	31%	31%	31%	32%
Outside measurement period	Time period	1961–1995	1961–1995	1961–1995	1961–1995
Outside measurement period	Number of days within this time period	12783	12783	12783	12783
Quality control	Min. plausible value	−50 °C	−50 °C	−50 °C	0 mm
	Max. plausible value	+50 °C	+50 °C	+50 °C	150 mm
	Min. daily completeness	95%	95%	95%	100%
Summary	Total number of plots	78	78	78	78

^aValues on the missing days were filled with the interpolated values after bias correction

ISSN: 1297-966X