Photochemical halogen and ozone experiment: mass exchange in the lower troposphere, Utqiagvik (Barrow), Alaska, 2016

• Main Authors: Stephen McNamara, Kerri Pratt, Paul Shepson
• Format: Dataset
• Language: unknown
• Published: Arctic Data Center 2019
• Subjects: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY; EARTH SCIENCE > ATMOSPHERE > AIR QUALITY > TROPOSPHERIC OZONE; Arctic; Barrow; Tundra; Alaska
• Online Access: https://search.dataone.org/view/urn:uuid:f16fe41d-01a2-4758-a71b-4e4b924bbf05

The 2016 Photochemical Halogen and Ozone Experiment: Mass Exchange in the Lower Troposphere (PHOXMELT) field campaign was conducted on the Barrow Environmental Observatory tundra near Utqiagvik (Barrow), AK (71 ° 16.500 N, 156 ° 38.426 W) from March-May 2016. Chemical ionization mass spectrometry measurements of a suite of atmospheric trace gases were conducted at ~1 m above the snowpack. The goal was to examine tropospheric halogen chemistry above the Arctic snowpack during spring through snowmelt in May to improve our understanding of air-snow interactions that significantly influence atmospheric composition. Here we report 1 h average mole ratios of ambient ClO, Cl 2 , HO 2 NO 2 , ClNO 2 , HOBr, BrO, N 2 O 5 , BrCl, Br 2 , and O 3 .