Sea2Cloud - Baring-Head – APi-TOF - Level 2

This file contains Atmospheric Pressure Interface Time of Flight (APi-TOF) mass spectrometer data measured at the Baring Head station between 16 July 2020 to 17 January 2021. The instrument was used in negative ion mode without chemical ionisation. The APi-TOF was located in the same building with the aerosol instrumentation and it was used with a 91 cm long 3/8" thick stainless steel inlet. The flow rate in this inlet was increased to 11 lpm with an external pump to reduce wall losses in the inlet. The measurements were done with 1 min time resolution, but here the data is averaged over 30 min to increase the signal to noise ratio. The file contains the time series for the peaks that were used in the publication. The units are in ions/s and the time is New Zealand Standard Time