edu.ucar.opensky::articles:19327 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-26T02:41:00.329047 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7ws8w1c Airborne measurements of BrO and the sum of HOBr and Br2 over the Tropical West Pacific from 1 to 15 km during the CONvective TRansport of Active Species in the Tropics (CONTRAST) experiment 2016-10-27T00:00:00Z publication https://n2t.org/ark:/85065/d7ws8w1c https://doi.org/10.1002/2016JD025561 Chen, D. author Huey, L. G. author Tanner, D. J. author Salawitch, R. J. author Anderson, D. C. author Wales, P. A. author Pan, Laura L. author Atlas, E. L. author Hornbrook, Rebecca author Apel, Eric C. author Blake, N. J. author Campos, Teresa author Donets, V. author Flocke, Frank M. author Hall, Samuel R. author Hanisco, T. F. author Hills, Alan J. author Honomichl, Shawn B. author Jensen, Jørgen B. author Kaser, Lisa author Montzka, Denise D. author Nicely, J. M. author Reeves, John Michael author Riemer, D. D. author Schauffler, Sue author Ullmann, Kirk author Weinheimer, Andrew author Wolfe, G. M. author UCAR/NCAR - Library publisher A chemical ionization mass spectrometer was used to measure BrO and HOBr+Br-2 over the Tropical West Pacific Ocean within the altitude range of 1 to 15km, during the CONvective TRansport of Active Species in the Tropics (CONTRAST) campaign in 2014. Isolated episodes of elevated BrO (up to 6.6pptv) and/or HOBr+Br-2 (up to 7.3pptv) were observed in the tropical free troposphere (TFT) and were associated with biomass burning. However, most of the time we did not observe significant BrO or HOBr+Br-2 in the TFT and the tropical tropopause layer (TTL) above our limits of detection (LOD). The 1min average LOD for BrO ranged from 0.6 to 1.6pptv and for HOBr+Br-2 ranged from 1.3 to 3.5pptv. During one flight, BrO observations from the TTL to the extratropical lowermost stratosphere were used to infer a profile of inorganic bromine (Br-y). Based on this profile, we estimated the product gas injection of bromine species into the stratosphere to be 2pptv. Analysis of Br-y partitioning further indicates that BrO levels are likely very low in the TFT environment and that future studies should target the measurement of HBr or atomic Br. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright 2016 American Geophysical Union. None eng geoscientificInformation