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Table 1 Data sets, their statistics and sources, used in the WDMAM_2 compilation

From: Building the second version of the World Digital Magnetic Anomaly Map (WDMAM)

Name N Mean Stdev. Min/max Index Sources
Marine data 7,193,664 −4 110 −2057/2627 11 Ishihara, T., J. Luis, M. Catalan and Y. Quesnel (t-ischihara@aist.go.jp)
France 1,488,585 0.54 32.00 −156/396 12 Le Mouël., Ann. Geophys., 26(2), 1970 & Courtillot et al.,
       Earth Planet Sci. Lett., 47, 1980
Italy 439,320 11.8 59.02 −435/588 13 Chiappini et al., Annali di Geophysica, 45(5), 2000
Spain 494,171 0.02 16.66 −62/184 14 Socias, Earth Planet Sci. Lett., 105, 1991
Germany 20,815 −2.62 36.70 −96/171 15 Gerald.Gabriel@liag-hannover.de
Austria 5294 12.6 26.12 −35/137 16 GSA, (http://www.geologie.ac.at/)
Fennoscandia 3,505,857 −30 154 −580/1500 17 J. Korhonen, GTK (http://en.gtk.fi/)
United Kingdom 119,509 −2.71 121 −962/1342 18 British Geological Survey, NERC, IPR/132-01CT
Portugal 151,142 −10 33 −111/219 19 Miranda et al., Earth Planet Sci. Lett., 9, 1989
Romania 100,092 19 70 −144/418 20 Dr. L. Besutiu, Institute of Geodynamics, Romania
       (http://www.geodin.ro/)
Japan (2007) 91,094 −42 73 −401/416 21 http://www.ccop.or.th/
East Asia 958,040 −28 68 −509/763 22 http://www.ccop.or.th/
Russia (vsegei) 1,688,415 0.9 158 −2274/5658 23 T. Litvinova, VSEGEI (http://www.vsegei.ru/en)
Djibouti 266,171 −2.8 85 −293/241 24 Courtillot et al., Earth Planet Sci. Lett., 47, 1980
Middle-East (2007) 1,812,464 0.56 73 −904/690 25 http://members.casema.nl/errenwijlens/itc/aaime/
India 92,784 18.5 82 −341/427 26 GSI, http://www.portal.gsi.gov.in/
Circum-Arctic 3,258,710 −4 99 −699/2754 27 Gaina, C., Werner, S.C. and the CAMP- GM group, NGU Report
       2009.010
Guadeloupe 353,672 24 46 −76/190 28 IPG Paris, France, (http://www.ipgp.fr/)
French Guiana 99,066 −3.9 72 −283/143 29 BRGM, France (http://infoterre.brgm.fr/)
Bahama-Cuba 329,975 0.9 75 −410/681 30 Batista-Rodriguez, et al., Geophysics, 72(3), (doi:http://dx.doi.org/10.1190/1.271242510.1190/1.2712425)
Nure-Namag 2,012,238 −11 123 −3667/3998 31 Ravat, et al., USGS Open-file Report 2009-1258
Algeria 2,126,820 0.2 48 −189/274 32 Ministry of Energy and Mines, Algiers, Algeria
Morocco 394,179 −1.4 43 −194/207 33 Ministry of Energy and Mines, Rabat, Morocco
Nigeria 132,407 26.3 40 −163/177 34 Nigerian Geological Survey, Abuja, Nigeria
Argentina-Shelf 1,497,947 −9 45 −150/318 35 Max et al., Marine Petroleum Geology, 16, 1999.
Argentina-Inland 34,134 −1.5 104 −3152/1173 36 SEGEMAR, http://www.segemar-cba.com.ar/
Australia 7,089,164 −41.2 137 −1674/3360 37 (Milligan et al. 2010), Geosciences Australia,
       http://www.ga.gov.au/data-pubs/maps
South African DC 427,270 −3.2 120 −1788/2030 38 SADC, http://www.sadc.int/
Uganda 123,020 −83 116 673/301 39 Ministry of Energy and Mineral Development, Uganda
Mozambique 419,248 159 171 −409/1007 40 Geologian Tutkimuskeskus, Espoo, Finland
SaNaBoZi 83,380 77 109 −203/756 41 SADC, http://www.sadc.int/
Acad Vernadsky 69,123 170 166 −180/426 42 Orlyuk et al., St Petersburg, July 8th-11th, Russia, 2008
Admap 56,125,472 15 104 −776/1371 43 https://www.bas.ac.uk/data/our-data/maps/map-catalogue
Marine Model 901,539 −5 152 −1662/1639 44 Dyment et al., EPSL, 430, 2015
Eurasia (2007) 540,898 −2 102 −891/819 45 GSC, http://gsc.nrcan.gc.ca/
Getech (2007) 1,038,080 1 59 −1024/536 46 GETECH, http://www.getech.com/gravity-magnetic/
GRIMM_L120 3,645,256 8 55 −235/580 47 Lesur et al., Solid Earth, 4, 2013