<?php
require_once "../../config/settings.inc.php";
define("IEM_APPID", 21);
require_once '../../include/myview.php';

$t = new MyView();
$t->title = "ASOS/AWOS Network";

$t->content = <<< EOM
<h1 class="h4 mb-3">ASOS / AWOS Network</h1>


<p>The Automated Surface Observing System (ASOS) is considered to be the flagship
automated observing network. Located at airports, the ASOS stations provide
essential observations for the National Weather Service (NWS), the Federal
Aviation Administration (FAA), and the Department of Defense (DOD). The primary
function of the ASOS stations are to take minute-by-minute observations and
generate basic weather reports.<sup class="text-muted">[1]</sup></p>

<p>Please see this <a href="/onsite/news.phtml?id=1469" class="btn btn-danger">
<i class="bi bi-info-circle-fill" aria-hidden="true"></i> Important News Item</a> regarding
wagering on ASOS temperatures.</p>

<div class="row g-4">
  <div class="col-md-6">
    <section aria-labelledby="current-heading">
      <h2 class="h5" id="current-heading">Current ASOS Data</h2>
      <ul class="mb-4">
        <li><a href="current.phtml">Sortable Current Conditions</a></li>
        <li><a href="/data/mesonet.gif">Combined Mesonet</a></li>
        <li><a href="/data/asos.gif">ASOS Mesonet</a></li>
        <li><a href="/data/wcht.gif">Wind Chill Index</a></li>
        <li><a href="recent.phtml">Recent Interesting METAR Reports</a></li>
        <li><a href="/data/relh.gif">Relative Humidity</a></li>
      </ul>
    </section>

    <section aria-labelledby="one-minute-heading">
      <h2 class="h5" id="one-minute-heading">1 Minute Archive</h2>
      <p>The National Center for Environmental Information (NCEI) provides an archive of one minute interval observations from many US ASOS sites back to the year 2000. This archive is available <a href="https://www.ncei.noaa.gov/pub/data/asos-onemin/">here</a>, but in a difficult to use format. The IEM makes a best-guess effort at processing the mostly undocumented data format and updates the archive daily. This dataset is <strong>not realtime</strong> and is delayed by 18–36 hours or more due to NCEI availability.</p>
      <ul class="mb-1">
        <li><a href="/request/asos/1min.phtml">Download</a> these observations</li>
        <li><a href="/plotting/auto/?q=211">Plot</a> these observations</li>
      </ul>
      <p class="mb-4">Data is available for some sites back to 2000.</p>
    </section>

    <section aria-labelledby="qc-heading">
      <h2 class="h5" id="qc-heading">Information</h2>
      <ul>
        <li><a href="/sites/locate.php?network=IA_ASOS">Station Locations</a></li>
        <li><a href="/QC/madis/network.phtml?network=IA_ASOS">MADIS Raw QC Values</a></li>
        <li><a href="precipnote.phtml">Note about ASOS Precipitation Timing</a></li>
      </ul>
    </section>
  </div>

  <div class="col-md-6">
    <section aria-labelledby="historical-heading" class="mb-4">
      <h2 class="h5" id="historical-heading">Historical Data</h2>
      <ul class="mb-4">
        <li><a href="/request/download.phtml">Download</a> raw observations from the archive</li>
        <li><a href="/cgi-bin/precip/catAZOS.py">Hourly Precipitation</a> tables</li>
        <li><a href="/ASOS/reports/mon_prec.php">Monthly Precipitation</a> tables</li>
        <li><a href="/request/hourlyprecip.phtml">Download</a> computed hourly precipitation totals</li>
        <li><a href="/request/daily.phtml">Download</a> computed daily summaries</li>
        <li><a href="/climodat/">IEM Climodat</a> has monthly/yearly summaries of precipitation and temperature.</li>
      </ul>
    </section>

    <section aria-labelledby="comparisons-heading" class="mb-4">
      <h2 class="h5" id="comparisons-heading">Comparisons</h2>
      <ul>
        <li><a href="/data/temps.gif">Temperatures vs RWIS Network</a></li>
        <li><a href="/data/snet/Tcompare.gif">Temperatures vs SchoolNet Network</a></li>
        <li><a href="/data/dewps.gif">Dew Points vs RWIS Network</a></li>
        <li><a href="/data/snet/Dcompare.gif">Dew Points vs SchoolNet Network</a></li>
      </ul>
    </section>

    <section aria-labelledby="references-heading">
      <h2 class="h5" id="references-heading">References</h2>
      <p class="mb-2"><sup class="text-muted">[1]</sup> Adapted from the <a href="https://www.weather.gov/media/asos/aum-toc.pdf">ASOS User's Guide</a></p>
      <ul class="mb-0">
        <li><a href="https://www.weather.gov/media/asos/ASOS%20Implementation/awpag27B6relnotes.pdf">All Weather Precipitation Gauge</a> install dates.</li>
      </ul>
    </section>
  </div>
</div>
EOM;
$t->render('single.phtml');
