| About conjugate observation | |
|---|---|
| Auroral phenomena and Observation items | |
| Syowa Station, Antarctica and Iceland are in the geomagnetic conjugate
relationship, where both stations are connected with a same geomagnetic
field line between southern and northern hemispheres. Auroral particles
precipitate from the magnetosphere to the polar ionosphere simultaneously
in both polar regions along the field line through wave-particle interaction
process with electromagnetic waves. The electromagnetic waves in the ULF
and VLF frequency range also propagate from the magnetosphere to the ionosphere
along the field line. Precipitated particles cause the appearance of optical
aurora and ionization of polar atmosphere, i.e. enhancement of electron
density and conductivity in the ionosphere, which causes enhancement of
ionospheric current. We have been carrying out the ground-based conjugate observations between Syowa and Iceland since 1983 in collaboration with University of Iceland and Icelandic collaborators by using various optical instruments, magnetometer, induction magnetometer, VLF receiver, and riometer to study the conjugacy and non-conjugacy of the auroral phenomena, and magnetosphere - ionosphere interaction process. |
|
| Global Conjugate Map in Geomagnetic Coordinates | |
| The Syowa - Iceland pair is very unique conjugate observation pair located
in the auroral zone in the world as shown in the global conjugate map in
the invariant latitude - geomagnetic longitude coordinates below, which
is calculated at the epoch time of 00:00 UT on January 01, 2023 by using
IGRF2020 model. |
|
| Information | |
| Sites and Collaboration in Iceland | |
| Instruments at conjugate stations | |
| History of Iceland - Syowa conjugate observation | |
| Example of conjugate aurora events | |
| 20030926 / 20110930 | |
| Data | |
| Watec B&W All-sky imager | Real-time image at TJO & HUS & SYO |
| Keogram viewer for TJO & HUS & SYO | |
| Keogram archive (TJO / HUS / SYO) | |
| Summary plot archive (TJO / HUS / SYO) | |
| Movie archive (TJO / HUS / SYO) | |
| ICAM (Interhemispheric Conjugate Aurora Monitoring) HOME | |
| CDF data for IUGONET (All-sky image) (TJO / HUS / SYO) | |
| CDF data for IUGONET (keogram) (TJO / HUS / SYO) | |
| Aurora Quicklook Viewer of NIPR ground-based network (AQVN) | |
| EMCCD B&W All-sky imager (High-speed Aurora Imager (HAI)) |
High-speed Aurora Imager (HAI) information |
| Keogram viewer (TJO / SYO) | |
| Archive | |
| Upper Atmosphere Physics Monitoring (UAPM) data: 1. MAG: fluxgate magnetometer 2. ULF: induction magnetometer 3. CNA: broad beam riometer 4. VLF: VLF wave receiver |
Obtain data & make a plot of Iceland-Syowa monitoring data |
| UAPM data daily plot viewer | |
| Magnetometer data daily plot viewer | |
| QL plot of Iceland data (since 5 Sep.,2016) | |
| QL plot of Syowa (West Ongul) data (since 16 Jan.,2016) | |
| Dynamic spectrum of Syowa VLF,ULF,MAG (16 Jan.,2016 -) | |
| Dynamic spectrum of Syowa-Iceland ULF,MAG (16 Jan.,2016 -) | |
| Dynamic spectrum of Syowa-Iceland ULF data (2003-2013) | |
| MAG: daily text file archive: Iceland: HUS / TJO / AED / ISAF Syowa: (16bit) IAGA / plain; (24bit) IAGA / plain |
|
| UAPM all data: daily text file archive: SYO / HUS / TJO / AED / ISAF |
|
| CDF data for IUGONET: 1. MAG: SYO / HUS / TJO / AED / ISAF 2. ULF: SYO / HUS / TJO / AED / ISAF |
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| Imaging Riometer (IRIO) | CDF data for IUGONET |
| Optical Mesosphere Thermosphere Imager (OMTI) data at HUS in ISEE (Nogoya Univ.) | ISEE OMTIs TOP |
| QL plot (557.7 / 630.0 / 486.1 / OH) | |
| CDF data | |
| New ULF 64Hz data at HUS in ISEE (Nagoya Univ.) | ISEE Magnetometer Data TOP |
| ULF data viewer | |
| CDF data | |
| New VLF/ELF data at HUS in ISEE (Nagoya Univ.) | ISEE VLF/ELF Network TOP |
| 10 min Spectrum plot | |
| CDF data | |
| Reference: scientific results | |
| Scientific papers related with Iceland - Syowa conjugate observations | |
| Other reference papers on conjugate studies | |
| Contact | |
| Polar Environment Data Science Center (PEDSC), Joint Support-Center for Data Science Research (DS), Research Organization of Information and Systems (ROIS) -------------------------- 10-3, Midoricho, Tachikawa, Tokyo 190-8518, Japan http://pedsc.rois.ac.jp/en/ E-mail to: Akira Kadokura (kadokura (at) nipr.ac.jp) |
|
| Data Center for Aurora HOME | |
