Published May 12, 2018 | Version v1
Dataset Open

Berkeley High Resolution (BEHR) OMI NO2 - Native pixels, monthly profiles

  • 1. University of California, Berkeley

Description

The BEHR OMI NO2 product reprocesses tropospheric NO2 columns from the Ozone Monitoring Instrument (OMI) satellite using high resolution a priori NO2 profiles, surface reflectivity, and surface elevation data. This product uses NO2 profiles for the day retrieved, simulated by the WRF-Chem model at 12 km spatial resolution. The use of high spatial resolution NO2 profiles has been shown to better resolve urban/rural differences in NO2 column densities, and the use of day-to-day (rather than monthly average) profiles is especially important in applications that preferentially select observations upwind or downwind of a NOx source. Given the computational cost of simulating daily 12 km resolution profiles over the continental US and the challenge of simulating individual lightning events accuractly, we still provide a product using monthly average NO2 profiles.

Notes

Each month of BEHR data is stored as a .tar.gz file (i.e. a tar archive compressed with gzip). These can be decompressed using 7zip or (on Mac/Linux) the command "tar -xzvf <filename>", e.g. "tar -xzvf OMI_BEHR-MONTHLY_US_v3-0A_200501.tar.gz" will expand OMI_BEHR-MONTHLY_US_v3-0A_200501.tar.gz 

In addition to downloading the full dataset or manually downloading individual files, a Python program is available at https://github.com/CohenBerkeleyLab/BEHRDownloader that can perform bulk downloads of a subset of the files, as well as automatically uncompress the tar files. See the Readme in that repo for further usage information.

For details on best practices for using the BEHR data, see the user guide PDF included in this repository.

Funding provided by: National Aeronautics and Space Administration
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000104
Award Number: NNX14AK89H

Funding provided by: National Aeronautics and Space Administration
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000104
Award Number: NNX15AE37G

Funding provided by: Smithsonian Astrophysical Observatory
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100009207
Award Number: SV3-83019

Files

BEHR-User-Guide.pdf

Files (65.9 GB)

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