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HomeGeophysicalSummary and ForecastsDaily Report Wednesday, Mar 20 2019 05:58 UT
Summary and Forecasts

Daily Report

Geomagnetic Summary

(last updated 19 Mar 2019 23:30 UT)

Geomagnetic field for Australian Region 19 Mar: Quiet Estimated Indices 19 Mar : A K Australian Region 5 11122122 Cocos Island 5 11122122 Darwin 4 12122111 Townsville 5 11222221 Learmonth 6 11222222 Alice Springs 5 11122122 Culgoora 4 11122121 Gingin 5 11112123 Canberra 4 01112122 Launceston 5 11222122 Hobart 4 11112122 Estimated Antarctic Regional K Indices 19 Mar : Macquarie Island 3 10122110 Casey 10 24322122 Mawson 29 23222275 Davis 10 13322233 Observed Regional daily pc3 Indices 19 Mar : Darwin 0 (Quiet) Townsville NA Learmonth 0 (Quiet) Alice Springs 0 (Quiet) Gingin 0 (Quiet) Canberra 0 (Quiet) Melbourne NA Pc3 pulsations are high frequency (10-45 second period) variations of the Earths magnetic field. Daily pc3-indices are the daily sum of 20 minute pc3-indices for that station and have been shown to be well correlated with rejection of high resolution aeromagnetic survey flight-line data. NOTE: Indices may have been generated from data obtained in cooperation with the following organisations: Geoscience Australia, University of Newcastle Space Physics Group, Australian Government Antarctic Division and International Center for Space Weather Science and Education, Japan. Estimated AFr/Ap Indices 19 Mar : A Fredericksburg 6 Planetary 7 Observed AFr/Ap Indices 18 Mar : A K Fredericksburg 2 Planetary 2 0100 1001

Geomagnetic Forecast

(last updated 19 Mar 2019 23:30 UT)

Date Ap Conditions 20 Mar 8 Quiet to Unsettled 21 Mar 6 Quiet 22 Mar 6 Quiet COMMENT: Quiet conditions were observed across the Australian region on 19 March and mostly Quiet to Unsettled conditions were in Antarctica. For 20 March, the global geomagnetic activity is expected to be at Quiet to Unsettled levels with possible isolated Active periods. The predicted increase in the geomagnetic activity is due to the high speed solar wind stream from the recurrent equatorial coronal hole. Then the global geomagnetic activity is expected to return to mostly Quiet levels as the coronal hole effects wane.

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