The Study of Geomagnetic Field Southeastern Part of an Najaf-Karbala Plateau, Central Iraq, by World Magnetic Model 2015

Abstract In this paper numerical simulations of the Earth’s magnetic field in south-eastern part an Najaf-Karbala Plateau and to north centre An-Najaf governorate have been investigated using WMM2015 model. The study area is located at (Latitude = 32.3180°-31.99°) N, (Longitude 44.5160°-44.0690°) E, ranging altitude between 20-90 m above sea level). was divided into grid (2000 points) by drawing parallel lines, interspacing distance two lines (1 Km). Each line would be several nodes. space any nodes about (0.25 Km), done Google earth program v.6, Collected data were latitude, longitude, elevation from level. applied (WMM2015) model result elements drawn Surfer v.13 converted contour map gridding method find characteristics Earth ( Total intensity (F), East component(Y), Horizontal (H), Down component(Z), North component(X), Declination (D) ) Inclination (I)). maps F, Y, D anomalies that observed changing values western area. This may indicating presence as a subsurface rock structures caused them, including base rocks or various faults.