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We have developed a dataset that is intended to be used as boundary conditions for regional modeling.

Get the data

1. Dates within the time period January 1, 2010 to June 30, 2018

A small subset of the boundary conditions are available via rapid access from the ACOM server:

https://www.acom.ucar.edu/cam-chem/DATA/

Regional and temporal subsetting option can be found at: https://www.acom.ucar.edu/cam-chem/cam-chem.shtml

2. All available dates January 1, 2001 to 2017

To access any of the complete dataset of shared files between January 2001 and June 2017 you will need a Globus account, which requires a Google account. Get Globus access here.

Once you can log into Globus, the boundary conditions are stored here:

https://app.globus.org/file-manager?origin_id=2acef47e-ed07-11e8-8cae-0a1d4c5c824a&origin_path=%2F

Files can be transferred to another location using the Globus system. To set up a transfer point see the relevant page:

    OSX:
        https://docs.globus.org/how-to/globus-connect-personal-mac
    Windows:
        https://docs.globus.org/how-to/globus-connect-personal-windows
    Linux:
        https://docs.globus.org/how-to/globus-connect-personal-linux

Note: direct download option from this site is in beta testing phase and should be available in the future.

Reference

Please use the following reference when using the data:

Emmons et al., in prep

Additionally, the data reference and DOI is:

TBD

Description

We used 0.9x1.25 horizontal resolution simulation with 56 vertical levels. Meteorology is driven by specified dynamics, by nudging with 50h relaxation (1%) to MERRA2 reanalysis. Data is saved as instantaneous fields every 6 hours. See a list of saved species. Files are collected as daily information (4 time-slices per file) and are 4.8G each. Data coverage is January 2001 to June 2017. Anthropogenic emissions are from CMIP6, Biogenic are from online MEGAN2.1, Fire emissions are from QFED. Note that fire emitted DMS 2001-2015 is from CMIP6 and in 2016 and 2017 is from GFAS. CMIP6 2014 anthropogenic emissions are repeated for dates past 2014.

*** NOTE: The current version of output has issues with HCN and O3S, please disregards these species ***

Other experimental output can be found here: Benchmarks and Production



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