SAMBA-AMBER Magnetometers Data Center

Escudero Station

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
CodeGeo 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.

AuthorsTitleJournal
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 conditionsJ. Geophys. Res. Space Physics
120:8, 6914–6929
2015
DOI: 10.1002/2015JA021066

ADS Abstract
Yizengaw, E., B. A. CarterImaging the global vertical density structure from the ground and spaceAGU

2015
DOI:

In press
Carter, B. A., E. Yizengaw, R. Pradipta, A. J. Halford, R. Norman, K. ZhangInterplanetary shocks and the resulting geomagnetically induced currents at the equatorGeophys. Res. Lett.
42
2015
DOI:

In press
Habarulema, J. B., Z. Katamzi, E. YizengawA simultaneous study of ionospheric parameters derived from FORMOSAT-3/COSMIC, GRACE and CHAMP missions over mid, low and equatorial latitudes: comparison with ionosonde dataJ. 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 sectorsAnn. 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. PfaffObservations of ULF wave related equatorial electrojet fluctuationsJ. 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. BakiPost-midnight Bubbles and Scintillations in the Quiet-Time June SolsticeGeophys. Res. Lett.
40:21 5592–5597
2013
DOI: 10.1002/2013GL058307

ADS Abstract
Pacheco, E. E., E. YizengawThe day-to-day longitudinal variability of the global ionospheric density distribution at low latitudes during low solar activityJ. 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. OppermanAn investigation of ionospheric disturbances over South Africa during the magnetic storm on 15 May 2005J. 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 DistributionInt. 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. PfaffLongitudinal differences of ionospheric vertical density distribution and equatorial electrodynamicsJ. 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 sectorsJ. Atmos. Solar-Terr. Phys.
73(1), 156-163.
2011
DOI:

ADS Abstract
Yizengaw, E., and M. B. MoldwinAfrican Meridian B-field Education and Research (AMBER) ArrayEarth Moon Planet
104(1), 237-246
2009
DOI: 10.1007/s11038-008-9287-2

ADS Abstract
Weygand, J.M., and E. ZestaComparison 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.

TitleItemDate
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., 2013A 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-lineThe magnetometer site is deployed.2013-05-28