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<span style="color: rgb(0, 0, 0); font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;">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 usually 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:</span><br>
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<div><a href="https://geomag.usgs.gov/plots/?timeRangeType=custom&endTime=2023-02-01T00:30:00.000Z&startTime=2023-01-31T23:30:00.000Z&type=adjusted&scale=Trace" title="https://geomag.usgs.gov/plots/?timeRangeType=custom&endTime=2023-02-01T00:30:00.000Z&startTime=2023-01-31T23:30:00.000Z&type=adjusted&scale=Trace">https://geomag.usgs.gov/plots/?timeRangeType=custom&endTime=2023-02-01T00:30:00.000Z&startTime=2023-01-31T23:30:00.000Z&type=adjusted&scale=Trace</a><br>
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<div>Noteworthy issues to report in this notice:</div>
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No updates to USGS Adjusted Data calibration parameters were deployed on January 1<span><sup>st</sup></span>, 2023.</li><li>Deadhorse <b>(DED) Adjusted data processing has been reactivated</b> because regular reliable calibration measurements are being made after over 2 years.</li></ul>
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