Fiehn, Alina; Quack, Birgit; Stemmler, Irene; Ziska, Franziska; Krüger, Kirstin (2020): Seasonally resolved oceanic emissions for bromoform delivery from the tropical Indian Ocean and west Pacific to the stratosphere: observation and simulation data [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.924284
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Abstract:
Oceanic very short-lived substances (VSLSs), such as bromoform (CHBr3), contribute to stratospheric halogen loading and, thus, to ozone depletion. However, the amount, timing, and region of bromine delivery to the stratosphere through one of the main entrance gates, the Indian summer monsoon circulation, are still uncertain. In this study, we created two bromoform emission inventories with monthly resolution for the tropical Indian Ocean and west Pacific based on new in situ bromoform measurements and novel ocean biogeochemistry modeling. The mass transport and atmospheric mixing ratios of bromoform were modeled for the year 2014 with the particle dispersion model FLEXPART driven by ERA-Interim reanalysis. We compare results between two emission scenarios: (1) monthly averaged and (2) annually averaged emissions. Both simulations reproduce the atmospheric distribution of bromoform from ship- and aircraft-based observations in the boundary layer and upper troposphere above the Indian Ocean reasonably well.
Supplement to:
Fiehn, Alina; Quack, Birgit; Stemmler, Irene; Ziska, Franziska; Krüger, Kirstin (2018): Importance of seasonally resolved oceanic emissions for bromoform delivery from the tropical Indian Ocean and west Pacific to the stratosphere. Atmospheric Chemistry and Physics, 18(16), 11973-11990, https://doi.org/10.5194/acp-18-11973-2018
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Description | Description | Fiehn, Alina | Model simulation | ||
| 2 | Binary Object | Binary | Fiehn, Alina | Model simulation | ||
| 3 | Binary Object (Media Type) | Binary (Type) | Fiehn, Alina | Model simulation | ||
| 4 | Binary Object (File Size) | Binary (Size) | Bytes | Fiehn, Alina | Model simulation |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
4 data points
Data
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| 1 Description | 2 Binary | 3 Binary (Type) | 4 Binary (Size) [Bytes] |
|---|---|---|---|
| Bromoform emission inventories scaled with in situ observations from the tropical and subtropical Indian Ocean | chbr3_stemmler_scaled_oasis_transbrom.nc | application/x-netcdf | 12.4 MBytes |
| Bromoform emission inventories for the tropical Indian Ocean and the west Pacific in 2014 from existing observation | chbr3_ziska_update_ols.nc | application/x-netcdf | 7.4 MBytes |