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<div>The USGS Geomagnetism Program's Adjusted Data (aka "Provisional" by INTERMAGNET) provides near real time absolutely calibrated and geographically oriented geomagnetic observations. These calibration parameters are updated on the first of each month in
order to satisfy geomagnetic observatory standards for accuracy and quality control. Updates are deployed at midnight UTC, and may result in noticeable baseline shifts for observatories whose sensor response characteristics may have changed substantially since
the last such update, or in rare cases, whose actual sensor has been altered or replaced since the last update. To view the results of this month's update, go to:
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<div><a href="https://geomag.usgs.gov/plots/?timeRangeType=custom&endTime=2021-03-01T00:30:00.000Z&startTime=2021-02-28T23:30:00.000Z&type=adjusted" title="https://geomag.usgs.gov/plots/?timeRangeType=custom&endTime=2021-03-01T00:30:00.000Z&startTime=2021-02-28T23:30:00.000Z&type=adjusted">https://geomag.usgs.gov/plots/?timeRangeType=custom&endTime=2021-03-01T00:30:00.000Z&startTime=2021-02-28T23:30:00.000Z&type=adjusted</a></div>
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<div>There are a few noteworthy issues to report in this notice:<br>
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<li>Guam <b>(GUA) Adjusted data processing has been disabled</b> because the raw real-time data feed is not currently online. We are currently attempting to diagnose this issue remotely, but the process is complicated by COVID-19 related restrictions.<br>
</li><li>Deadhorse <b>(DED) Adjusted data processing remains offline</b> because no calibration measurements have been made for approximately 11 months due to lack of industry partner support at the site due to COVID19-related changes in operations.</li><li><span>San Juan <span><b>(SJG) Adjusted data processing remains offline</b></span> as it has experienced undiagnosed sensor alignment issues since December 28th, 2020. The sensor has been re-aligned, but not validated calibration measurements have yet been
made. The SJG adjusted data feed may be reenabled sooner than, but almost certainly no later than, April 1st, 2021.</span><br>
</li></ul>
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