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PLASMON WP2 Report on SANSA Activities (Southern African ULF Stations) Peter Sutcliffe SANSA Space Science.

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Presentation on theme: "PLASMON WP2 Report on SANSA Activities (Southern African ULF Stations) Peter Sutcliffe SANSA Space Science."— Presentation transcript:

1 PLASMON WP2 Report on SANSA Activities (Southern African ULF Stations) Peter Sutcliffe SANSA Space Science

2 Namibia South Africa Station GeographicAACGM L- Value LatLongLatLong HER-34.4219.23-42.7783.791.89 SUT-32.4020.67-41.3986.271.81 KMH-26.5418.11-37.1786.021.60 HBK-25.8827.70-36.2596.181.54 OTJ-20.6317.19-32.4287.001.41 TSU-19.2017.58-31.1587.831.37 INTERMAGNET and ULF stations in Southern Africa

3 Example of FLR frequency determination Example of Pc3 FLR frequency determination using amplitude difference and phase difference methods from SUT and HER induction magnetometer data. SUT HER

4 Namibia South Africa Station GeographicAACGM L- Value LatLongLatLong HER-34.4219.23-42.7783.791.89 SUT-32.4020.67-41.3986.271.81 KMH-26.5418.11-37.1786.021.60 HBK-25.8827.70-36.2596.181.54 OTJ-20.6317.19-32.4287.001.41 TSU-19.2017.58-31.1587.831.37 INTERMAGNET and ULF stations in Southern Africa

5 Comparison of Hermanus Induction and LEMI-025 Magnetometers (Pc3) LEMI-025 Induction

6 Comparison of Hermanus Induction and LEMI-025 Magnetometers (Pc4 & Pi2) LEMI-025 InductionPc3-4Pi2 Pc3-4Pi2

7 Namibia South Africa Station GeographicAACGM L- Value LatLongLatLong HER-34.4219.23-42.7783.791.89 SUT-32.4020.67-41.3986.271.81 KMH-26.5418.11-37.1786.021.60 HBK-25.8827.70-36.2596.181.54 OTJ-20.6317.19-32.4287.001.41 TSU-19.2017.58-31.1587.831.37 INTERMAGNET and ULF stations in Southern Africa

8 LEMI-025 Fluxgate Magnetometer

9 Proposed system for data logging

10 Fig. 3. The mean and standard deviation of the dominant pulsation periods of the H-component observed at the stations SAA (L=1.84), AUG (L=1.64), MAR (L=1.52) and TSU (L=1.37) are indicated by the circles and error bars, respectively. The short dashed line shows the periods computed using a plasma model containing both O + and H + as a function of L-value. The long dashed line shows the periods computed with the same H + distribution, but with O + excluded. Hattingh, S. K. F. and P. R. Sutcliffe, Pc3 pulsation eigenperiod determination at low latitudes, J. Geophys. Res., 92, 12433, 1987. Effect of O + on FLR frequency

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