[Geomag-daily] Daily Report 2022-07-28(209)

Rossavik, Claudia K crossavik at usgs.gov
Thu Jul 28 17:18:51 UTC 2022


The following issues were noted earlier today:

BRW(2022-07-27): Gap from 04:24:00- 04:26:00 in H, E, Z, F, and delta F.

DED(2022-07-27): Spike in delta F at 16:52:00. Continuous 0.1 ∆nT spikes observed every 7-8 minutes in delta F. Sawtooth waveforms measured by T-Total field and T-Fluxgate with 0.3 -0.4 °C fluctuations every 30 seconds. T-Outside intermittently increases by 10 degrees before decreasing, resulting in scattered, step-like waveforms.

CMO(2022-07-27): Sawtooth activity continues in T-Total field with half hour periods. 3 ∆nT Spike at 19:35:00 in delta F. Spike in H, E, Z, F and delta F between 09:07:00-09:43:00, 11:23:00-11:39:00, and 13:14:00-13:15:00.

SIT(2022-07-27): Disturbances in T-electric, T-fluxgate, T-outside from 16:3900-20:07:00, 21:33:00-22:02:00 with similar (potentially uncorrelated) spiking observed in delta F and vaguely in H, E, Z, and F.
SIT(2022-07-28): Temperature spike observed in T-Electric, T-Total field, T-fluxgate, T-outside from 00:56:00-01:35:00. and from 15:49:00-16:16:00.

NEW(2022-07-27): Shark fin readings by T-Electric (varying periods, 1.0 °C fluctuations), T-Fluxgate and T-Outside (1.2 °C and 0.8 °C fluctuations, 1 hour periods).

BOU(2022-07-27): Spike at 16:28:00 in H, E, F. Spikes at 22:16:00, 22:39:00, 22:56:00 in H, E, F, delta F.
BOU(2022-07-28): Spike at 03:02:00 in delta F. Spike at 04:58:00 in delta F and F. Possibly due to lightning.

FRD(2022-07-27): Spikes in delta F observed at 06:01:00 and 15:35:00. Decrease in H, Z, F, and delta F occurring at 21:31:00.

FRN(2022-07-27): Delta F, T-electric, T-total field, T-flux gate recording shark fin fluctuations with roughly 1 hour periods.

TUC(2022-07-27): Spikes in delta F and F at 01:55:00, 07:55:00 , 09:06:00, 10:36:00, 19:21:00, 22:24:00. Regular 0.1-0.2 ∆nT noise in delta F.

BSL(2022-07-27): Continuous shark fin wave forms in T-Total field and T-Fluxgate with half hour periods.

HON(2022-07-27): Gap in F and delta F from 22:33:02-2:33:04.
HON(2022-07-28): Spike in delta F at 05:21:00. Sawtooth 0.4 °C fluctuations in T-electric.

SJG(2022-07-27): Regular 0.1-0.2 ∆nT noise in delta F. 0.4 ∆nT spikes at 16:28:00, 17:08:00, 17:25:00, 17:51:00, 18:222:00, 18:34:00. 0.5 ∆nT spiking between 00:02:00-00:17:00.
SJG(2022-07-28): 0.3 ∆nT spike in delta F at 03:38:00.
SJG(2022-07-28): SJT down.

GUA(2022-07-27): Spikes in delta F observed at 22:46:00 and from 23:00:00-23:10:00. T-total field and T-fluxgate recording continuous 10-minute period shark fin fluctuations of .7 °C and .1 °C respectively.
GUA(2022-07-28): Spike in delta F from 02:22:00-02:30:00, at 06:50:00, from 07:29:00-07:36:00, and 13:21:00-13:26:00.
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