Read Me: SMEAR1_anions_below2_2to7_7to42nm

Jokinen, T., Lehtipalo, K., Thakur, R. C., Ylivinkka, I., Neitola, K., Sarnela, N., Laitinen, T., Kulmala, M., Petäjä, T., and Sipilä, M.: 
Measurement report: Long-term measurements of aerosol precursor concentrations in the Finnish sub-Arctic boreal forest, Atmos. Chem. Phys. Discuss. [preprint], https://doi.org/10.5194/acp-2021-735, in review, 2021.

Original data from NAIS, SMEAR I, Värriö, Finland

Columns:
1. Time (datenum time, Matlab)
2. <2 nm anion concentration, unit: ions/cm3
3. 2 - 7 nm anion concentration, unit: ions/cm3
4. 7 - 42 nm anion concentration, unit: ions/cm3

Contact: tuija.jokinen@helsinki.fi and t.jokinen@cyi.ac.cy