DOI: 10.15139/s3/jwqwmc
title: CMAQv5.4_SAPRC22 Test Data -- 07/01/2016 - 07/14/2016 12km CONUS (12US2 domain)

description: &lt;h4&gt;CMAQv5.4_SAPRC22 Test Data -- 07/01/2016 - 07/14/2016 12km CONUS  (12US2 domain)&lt;/h2&gt;
description: &lt;h2&gt;Data Summary&lt;/h2&gt;&lt;br&gt;
&lt;br&gt;
&lt;strong&gt;Note:&lt;/strong&gt; The datasets are part of the CMAS Center Amazon Web Services (AWS) Open Data Program and are saved in an &lt;a href=https://aws.amazon.com/s3/&gt;AWS S3 bucket&lt;/a&gt;. The metadata associated with this DOI contain the link to the S3 bucket and instructions for downloading the data.

See below for how to cite this data.
description: &lt;h2&gt;File Location and Download Instructions&lt;/h2&gt;

&lt;ul&gt; &lt;li&gt;&lt;strong&gt;&lt;a href="https://cmaqv54-saprc22-12us2-2016-07-test-data.s3.amazonaws.com/index.html"&gt;Link to emissions, initial, and boundary conditions input files&lt;/a&gt;&lt;/strong&gt; for 2016 12US2 SAPRC22&lt;/li&gt;
&lt;li&gt; &lt;strong&gt;&lt;a href="https://cmaqv54-saprc22-12us2-2016-07-test-data.s3.amazonaws.com/readme.html"&gt;Link to download instructions&lt;/a&gt;&lt;/strong&gt; &lt;/li&gt; 
&lt;/ul&gt;
&lt;br&gt;
This S3 buckets contain CMAQ-ready meteorology, emissions, initial, and boundary conditions input files suitable for running a simulation using the SAPRC22 mechanism that is available as a branch for the CMAQv5.4: &lt;a href=https://github.com/USEPA/CMAQ/tree/5.4_SAPRC22/&gt;CMAQ 5.4_SAPRC22 Branch&lt;/a&gt;
&lt;br&gt;
&lt;h2&gt;Meteorology Inputs&lt;/h2&gt;
Meteorology was generated with WRF and processed by MCIP resulting in CMAQ-ready files that are located in the &lt;b&gt;2016_12US2/mcip&lt;/b&gt; directory.
&lt;br&gt;
&lt;h2&gt;Emissions Inputs&lt;/h2&gt;
Model-ready emissions inputs are based off of the &lt;a href=https://www.epa.gov/air-emissions-modeling/2016v3-platform&gt;US EPA 2016 version 3 emissions modeling platform&lt;/a&gt; converted to SAPRC22 speciation. Data files are available in the &lt;b&gt;2016_12US2/emis_saprc22/&lt;/b&gt; directory. Files linking representative day emissions to specific calendar days are provided in the &lt;b&gt;2016_12US2/emis_dates&lt;/b&gt; directory.&lt;br&gt;


&lt;br&gt;
&lt;h2&gt;&lt;h2&gt;Boundary and Initial Conditions Inputs for 12US2 CMAQ SAPRC22 Simulation&lt;/h2&gt;
Boundary conditions files are in the &lt;b&gt;2016_12US2/icbc_saprc22/&lt;/b&gt; directory.&lt;br&gt;
&lt;br&gt;
&lt;h2&gt;Additional required inputs for CMAQ&lt;/h2&gt;&lt;br&gt;
In addition to these meteorology, emissions, initial, and boundary conditions files, users will also need certain other input files to perform a 2016 12US2 simulation of CMAQv5.4 using SAPRC22. The following files are included with this 2016 data repository:
&lt;ul&gt;
&lt;li&gt; GRIDDESC grid description file for the 12US2 domain available here: &lt;b&gt;2016_12US2/GRIDDESC&lt;/b&gt;&lt;/li&gt; 

&lt;li&gt;Input files for land surface properties including ocean area for sea spray emissions, land use and other data for biogenic emissions, and Environmental Policy Integrated Climate (EPIC) outputs to drive ammonia bidirectional flux. Files are available in the &lt;b&gt;2016_12SU2/epic&lt;/b&gt; and &lt;b&gt;2016_12US2/ocean&lt;/b&gt; directories&lt;/li&gt; 

&lt;li&gt;Lightning NO emission input files based on lightning data from WWLLN. Files are available in the &lt;b&gt;2016_12US2/met/lightning&lt;/b&gt; directory.&lt;/li&gt;&lt;/ul&gt;
&lt;br&gt;

&lt;h2&gt;Scripts and control files&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt; Inputs described here may be used with the example code in the CMAQv5.4 SAPRC22 branch.&lt;/li&gt; 
&lt;li&gt;To obtain the code for the SAPRC22 mechanism see &lt;a href=https://github.com/USEPA/CMAQ/tree/5.4_SAPRC22/&gt;CMAQ 5.4_SAPRC22 Branch&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt;
&lt;li&gt;For an example build script and run script see the scripts directory &lt;a href=https://cmaqv54-saprc22-12us2-2016-07-test-data.s3.amazonaws.com/index.html#2016_12US2/scripts/&gt;https://cmaqv54-saprc22-12us2-2016-07-test-data.s3.amazonaws.com/index.html#2016_12US2/scripts/&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt;