<div dir="ltr"><div class="m_-8331585609195449456gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr"><div style="color:rgb(136,136,136)">

<div dir="ltr" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><div dir="ltr" style=""><div dir="ltr" style=""><div dir="ltr" style=""><div dir="ltr" style="font-size:12.8px"><img src="cid:ii_jfsd9dar0_162aaee79b7ee165" width="562" height="84" class="m_-8331585609195449456gmail-CToWUd"><br>​<br>​​<u style="color:rgb(51,51,51);font-family:Merriweather,Times,serif;font-size:1.7625em">USGS Geomagnetism Program Daily Report</u></div><div dir="ltr" style=""><div style="font-size:12.8px"><font color="#0000ff"><br></font></div><div style="font-size:12.8px"><font color="#0000ff">The following discrepancies were noted this day:<br></font></div><div style="font-size:12.8px"><font color="#0000ff"><br></font></div><div style=""><div style="font-size:12.8px"><font color="#0000ff"><b>BRT</b><span> </span>- <span> </span><span style="font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">is down for updates to the system. Brendan will notify the group when system is up.</span></font></div><div style="font-size:12.8px"><font color="#0000ff"><br></font></div><div style=""><font color="#0000ff" style=""><span style="font-size:small;font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><b>DED</b></span><span style="font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="font-size:small"> </span>- <span style="font-size:small"> </span><span style="font-family:"Source Sans Pro",Helvetica,Arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:center;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">ΔF</span> has spike at 02:19:00 on 4/7/18 (YD 097) due to <span style="font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">bad total field values recorded</span></span></font></div><div style="font-size:12.8px"><font color="#0000ff"><br></font></div><div style="font-size:12.8px"><font color="#0000ff"><b>BOU</b><span> </span>-  <span> </span><span style="font-family:"Source Sans Pro",Helvetica,Arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:center;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">ΔF has spike at 20:24:00 on 4/8/18 (YD 098). Artificial disturbance.</span></font></div><div style="font-size:12.8px"><font color="#0000ff"> </font></div><div style="font-size:12.8px"><font color="#0000ff"><b>FRN<span> </span></b>-  <span> </span><span style="color:rgb(0,0,255);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><span style="font-size:12.8px"><div style="font-size:12.8px;display:inline">There are gaps in the Dist, SQ and SV plots from 09:16:00 through 10:29:00 UT, on 4/7/18 (YD 097)</div></span></span></font></div><div style="font-size:12.8px"><font color="#0000ff"><br></font></div><div style="font-size:12.8px"><font color="#0000ff"><b>TUC</b><span> </span>-  <span> </span><span style="color:rgb(0,0,255);font-family:"Source Sans Pro",Helvetica,Arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:center;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">ΔF has spike at 02:43:00 <span> </span><span style="color:rgb(0,0,255);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">on 4/9/18 (YD 099) due to</span><span style="color:rgb(0,0,255);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"> </span><span style="color:rgb(0,0,255);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;float:none;display:inline">bad total field values recorded. <span> </span><span style="color:rgb(0,0,255);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;background-color:rgb(255,255,255)"><span style="font-size:12.8px"> </span></span><span style="color:rgb(0,0,255);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;font-size:12.8px;background-color:rgb(255,255,255)"><span style="font-size:12.8px"><div style="font-size:12.8px;display:inline">There are gaps in the Dist, SQ and SV plots from 02:16:00 through 2:59:00 UT, on 4/9/18 (YD 099)</div></span></span></span></span></font></div><div style="font-size:12.8px"><font color="#0000ff"><br></font></div><div style="font-size:12.8px"><font color="#0000ff"><b>BSL</b><span> </span>-  <span> </span><span style="color:rgb(0,0,255);font-family:"Source Sans Pro",Helvetica,Arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:center;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">ΔF has noise (although less than 1 nT)</span></font></div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px"><font color="#0000ff">---</font></div><div style="font-size:12.8px"><font color="#0000ff"><br></font></div><div style="font-size:12.8px"><div style="font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><b style="font-size:12.8px"><span style="font-size:12.8px"><u><font color="#0000ff">Dist, SQ and SV:</font></u></span></b></div><div style="font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><span style="color:rgb(0,0,255);font-size:12.8px"><span style="font-size:12.8px"><div style="font-size:12.8px;display:inline"><span style="font-size:12.8px">There are gaps in the FRN - Dist, SQ and SV plots from 09:16:00 through 10:29:00 UT, on 4/7/18 (YD 097)</span> .<span> </span><span style="font-size:12.8px"> </span><span style="font-size:12.8px"><span style="font-size:12.8px"> </span></span><span style="font-size:12.8px"><span style="font-size:12.8px"><div style="font-size:12.8px;display:inline">There are gaps in the TUC - Dist, SQ and SV plots from 02:16:00 through 2:59:00 UT, on 4/9/18 (YD 099)</div></span></span><span> </span>These data gaps, at both observatories, may have been caused by internet outages. </div></span></span><br></div><div style="font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><span style="font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><b><font color="#0000ff"><br></font></b></span></div><div style="font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><span style="text-align:start;text-indent:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><b><span style="text-align:start;text-indent:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><span style="font-size:12.8px"><font color="#0000ff"><u>Boulder E-Field:</u></font></span></span></b></span></div><div style="font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><span style="text-align:start;text-indent:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="text-align:start;text-indent:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><span style="font-size:12.8px"><font color="#0000ff">  None</font></span></span></span></div><font color="#0000ff"><br></font></div><div style="font-size:12.8px"><font color="#0000ff"> </font></div><div style="font-size:12.8px"><font color="#0000ff"><b>DST<span> </span></b>-  There is the daily offset in the USGS Dst-1min plot resulting from the corresponding data gap in the plot for Kakioka at around the end/start of each day.</font></div></div><div style="font-size:12.8px"><font color="#0000ff"><br></font></div></div></div></div></div></div><span class="m_-8331585609195449456gmail-HOEnZb m_-8331585609195449456gmail-adL" style="font-size:12.8px;color:rgb(34,34,34);font-family:arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><font color="#888888">--<span> </span><br><div class="m_-8331585609195449456gmail-m_-8886314892631323470gmail_signature"><div dir="ltr"><div><div dir="ltr"><font face="Arial, sans-serif" style="color:rgb(136,136,136);font-size:12.8px">John M. Spritzer</font><br style="color:rgb(136,136,136);font-size:12.8px;font-family:Arial,sans-serif"><font color="#888888" face="Arial, sans-serif">Geophysicist/Engineer</font><br><div style="color:rgb(136,136,136);font-size:12.8px"><span style="font-family:Arial,sans-serif">USGS/Geologic Hazards Science Center</span></div><div style="color:rgb(136,136,136);font-size:12.8px"><span style="font-family:Arial,sans-serif">PO Box 25046, <a href="https://maps.google.com/?q=MS+966+Denver,+CO+80225+Office&entry=gmail&source=g" style="color:rgb(17,85,204)" target="_blank">MS 966</a></span><br style="font-family:Arial,sans-serif"><span style="font-family:Arial,sans-serif"><a href="https://maps.google.com/?q=MS+966+Denver,+CO+80225+Office&entry=gmail&source=g" style="color:rgb(17,85,204)" target="_blank">Denver, CO 80225</a></span><br style="font-family:Arial,sans-serif"><span style="font-family:Arial,sans-serif"><a href="https://maps.google.com/?q=MS+966+Denver,+CO+80225+Office&entry=gmail&source=g" style="color:rgb(17,85,204)" target="_blank">Office</a>: 303-273-8430</span></div><div style="color:rgb(136,136,136);font-size:12.8px"><span style="font-family:Arial,sans-serif">Fax:  303-273-8506</span></div></div></div></div></div></font></span>

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