SAMBA-AMBER Magnetometers Data Center
The SAMBA and AMBER magnetometer B-Field networks provide data characterizing the earth's magnetic field in the southern hemisphere, utilizing parallel chains of meridional sensor stations in South America and Africa.
The "South American Meridional B-Field Array" (SAMBA) stretches from Putre, Chile to Escudero, O'Higgins and Palmer Stations, Antarctica.
The "African Meridian B-Field Education and Research" (AMBER) array ranges from Medea, Algeria south to Tsumeb, Namibia in two parallel lines. Additional stations are planned for installations along the magnetic equator from Brazil to the Philippines.
These networks and this data center are sponsored by funds from the National Science Foundation (NSF), the National Aeronautics and Space Administration (NASA), and the U.S. Air Force Office of Scientific Research (AFOSR). Leading participants include Boston College and the University of California Los Angeles. Host organizations for the sensors are identified in the Station pages of the sensor networks.
Sensor data on this site are stored in ascii daily data tables and as PostScript® daily plot files. Users can browse the stored file tree via the Downloads menu item or by searching for a particular day and station. Table data have been de-spiked during processing, prior to plot generation.
PostScript® is a registered trademark of Adobe Systems, Inc.
SAMBA NETWORK
The South American Meridional B-Field Array collects and analyzes data from a low-latitude meridional array of magnetometers along the coast of Chile and Antarctica. It includes five magnetometer sites approximately along the 0° geomagnetic longitude and ranging from -5° to -48° geomagnetic latitude. The sites are located at Los Cerrillos, Chile, Osorno, Chile, and at the O'Higgins, Escudero and Palmer research stations on the islands of the Antarctic Region.
| Station Country | Code | Geo Lat / Geo Lon | Mag Lat / Mag Lon | L Value |
|---|---|---|---|---|
| La Serena Station | SER | -30.00 -71.13 | -16.55 0.17 | 1.09 |
| Bernardo O'Higgins Station Antarctica | OHIG | -63.32 -57.90 | -48.80 12.43 | 2.28 |
| Escudero Station Antarctica | ESCD | -62.18 -58.92 | -47.17 11.45 | 2.18 |
| Palmer Station Antarctica | PLMR | -64.77 -64.05 | -49.74 9.20 | 2.39 |
| W Antarctic Ice Sheet Divide Antarctica | WSD | -79.49 -112.86 | -66.99 355.43 | 6.54 |
| Antofagasta Station Chile | ANT | -23.39 -70.24 | -10.31 0.72 | 1.03 |
| Los Cerrillos Station Chile | CERR | -33.45 -70.60 | -19.80 0.75 | 1.13 |
| Osorno Station Chile | OSNO | -40.34 -73.09 | -26.39 359.73 | 1.25 |
| Puerto Natales Station Chile | PNT | -51.73 -72.51 | -37.16 1.55 | 1.57 |
| Punta Arenas Station Chile | PAC | -53.20 -70.90 | -38.27 2.87 | 1.63 |
| Putre Station Chile | PUT | -18.33 -69.50 | -5.50 -1.44 | 1.01 |
| Valdivia Station Chile | VLD | -39.48 -73.14 | -25.58 359.60 | 1.23 |
Publications
Here are some of the research publications of the SAMBA and AMBER projects.
14 publications found.
| Authors | Title | Journal Volume Year | DOI ADS |
|---|---|---|---|
| Habarulema, J. B., Z. Katamzi, E. Yizengaw | First observations of poleward large scale travelling ionospheric disturbances over the African sector during the geomagnetic storm conditions | J. Geophys. Res. Space Physics 120:8, 6914–6929 2015 | DOI: 10.1002/2015JA021066 ADS Abstract |
| Yizengaw, E., B. A. Carter | Imaging the global vertical density structure from the ground and space | AGU 2015 | DOI: In press |
| Carter, B. A., E. Yizengaw, R. Pradipta, A. J. Halford, R. Norman, K. Zhang | Interplanetary shocks and the resulting geomagnetically induced currents at the equator | Geophys. Res. Lett. 42 2015 | DOI: In press |
| Habarulema, J. B., Z. Katamzi, E. Yizengaw | A simultaneous study of ionospheric parameters derived from FORMOSAT-3/COSMIC, GRACE and CHAMP missions over mid, low and equatorial latitudes: comparison with ionosonde data | J. Geophys. Res. Space Physics 119 2014 | DOI: 10.1002/2014JA020192 ADS Abstract |
| Yizengaw, E., M. B. Moldwin, E. Zesta, C. M. Biouele, B. Damtie, A. Mebrahtu, B. Rabiu, C. E. Valladares, R. Stoneback | The longitudinal variability of equatorial electrojet and vertical drift velocity in the African and American sectors | Ann. Geophys. 32, 231–238 2014 | DOI: 10.5194/angeo-32-231-2014 ADS Abstract |
| Yizengaw, E., E. Zesta, M. B. Moldwin, B. Damtie, A. Mebrahtu, C. E. Valladares, and R. F. Pfaff | Observations of ULF wave related equatorial electrojet fluctuations | J. Atmos. Solar-Terr. Phys. 103, 157-168 2013 | DOI: 10.1016/j.jastp.2013.03.015 ADS Abstract |
| Yizengaw, E., J. Retterer, E. E. Pacheco, P. Roddy, K. Groves, R. Caton, P. Baki | Post-midnight Bubbles and Scintillations in the Quiet-Time June Solstice | Geophys. Res. Lett. 40:21 5592–5597 2013 | DOI: 10.1002/2013GL058307 ADS Abstract |
| Pacheco, E. E., E. Yizengaw | The day-to-day longitudinal variability of the global ionospheric density distribution at low latitudes during low solar activity | J. Geophys. Res. Space Physics 118:4 1813–1823 2013 | DOI: 10.1002/jgra.50241 ADS Abstract |
| Ngwira, C. M., L. McKinnell, P. J. Cilliers, E. Yizengaw, B. D. L. Opperman | An investigation of ionospheric disturbances over South Africa during the magnetic storm on 15 May 2005 | J. Adv. Space Res. 49:2, 327-335 2012 | DOI: 10.1016/j.asr.2011.09.035 ADS Abstract |
| Yizengaw, E. | Global Longitudinal Dependence Observation of the Neutral Wind and Ionospheric Density Distribution | Int. J. Geophys. 2012 2012 | DOI: 10.1155/2012/342581 ADS Abstract |
| Yizengaw, E., E. Zesta, M. B. Moldwin, B. Damtie, A. Mebrahtu, C. E. Valladares, and R. F. Pfaff | Longitudinal differences of ionospheric vertical density distribution and equatorial electrodynamics | J. Geophys. Res, 117, A07312 2012 | DOI: 10.1029/2011JA017454 ADS Abstract |
| Yizengaw, E., M. B. Moldwin, A. Mebrahtu, B. Damtie, E. Zesta, C. E. Valladares, and P. H. Doherty | Comparison of storm time equatorial ionospheric electrodynamics in the African and American sectors | J. Atmos. Solar-Terr. Phys. 73(1), 156-163. 2011 | DOI: ADS Abstract |
| Yizengaw, E., and M. B. Moldwin | African Meridian B-field Education and Research (AMBER) Array | Earth Moon Planet 104(1), 237-246 2009 | DOI: 10.1007/s11038-008-9287-2 ADS Abstract |
| Weygand, J.M., and E. Zesta | Comparison of auroral electrojet indices in the Northern and Southern hemispheres, | J. Geophys. Res. 113, A08202 2008 | DOI: 10.1029/2008JA013055 ADS Abstract |
News
Here is the recent news from the two projects.
| Title | Item | Date |
|---|---|---|
| WAISD Data Added. | CSV Data from the West Antarctic Ice Sheet Divide magnetometers has been added for years 2005-2013, except 2007, in the Downloads/csv section. | 2014-03-12 |
| SAMBA/iMAGS Meeting in Punta Arenas 3-5 Nov., 2013 | A SAMBA/iMAGS Collaborative Workshop was held in Punta Arenas, Chile at the Chilean Antarctic Institute (INACH) 3-5 November 2013. See the page http://magnetometers.bc.edu/index.php/puntaarenasmeeting2013 for details. | 2013-11-19 |
| Conakry magnetometer has been deployed. | The magnetometer at Conakry, Guinea has joined the AMBER network. | 2013-08-06 |
| On-line | The magnetometer site is deployed. | 2013-05-28 |