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<!DOCTYPE html>
<html>
<head>
<title>HRRR Best Practices</title>
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<i class="far fa-handshake" aria-hidden="true"></i> Best Practices</a>
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<h3><i class="far fa-handshake" aria-hidden="true"></i> HRRR Archive: Best Practices</h3>
<hr>
<script src='./js/pando_status.js'></script>
<p><i>Updated August 9, 2017</i>
<p>The HRRR archive is made possible by the resources at Utah's
<a href="https://chpc.utah.edu/">Center For High Performance Computing</a>.
<p>HRRR data is originally downloaded from NOMADS via HTTP and NOAA ESRL via FTP.
These original files are quite large (prs files are >380 MB and sfc files are >100 MB each hour!)
That means if you download prs analyses for one day that's over 9 GB! Please be conscious of what you download.
<p>This is an unofficial HRRR archive.
<p>We do not guarantee HRRR data will be
available for every day or every forecast hour.
<p>We do not provide this HRRR
data operationally or in real-time. If you are looking for real-time,
operational HRRR data please use
<a href="http://nomads.ncep.noaa.gov/">NOMADS</a>.
<p>This archive is provided as a friendly service. By using the archive, you
agree to the following:
<ul style="padding-left:60px">
<li> You will cite the NCEP/ESRL HRRR model and University of Utah MesoWest
HRRR archive in works published where this data was used.
You may cite this paper <a href='https://doi.org/10.1016/j.cageo.2017.08.005'>https://doi.org/10.1016/j.cageo.2017.08.005</a>.
<li> You will not download an excessive, unreasonable amount of data.
For example, do not simultaneously initiate 50 download sequences on 50
nodes. Instead, download each file sequentially.
<li> You will call your mother on Mother's Day.
</ul>
<p>Submitting the registration form directs you to the download URL, which you
can bookmark. The information we collect in the registration form is only
used internally to keep a count of users and get an idea of what the archive
is being used for. We may share the total count and general usage with the
folks at NOAA's Earth System Research Lab.
<p>Full disclosure: This archive system has failed in the past. In January 2018,
The Pando archive crashed and all the data was unrecoverable. We were
able to backfill the data to 15 July 2016. After the failure, we set up an
additional backup to prevent total loss in the future.
<a href="https://home.chpc.utah.edu/~u0553130/Brian_Blaylock/Pando_archive/Pando_Failure.html">More info</a>
<p><small><small><small><small>Nothing to worry about in the fine print</small></small></small></small>
<hr>
Questions? Contact <a href="mailto:brian.blaylock@utah.edu">Brian Blaylock</a>
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