Summary
Regional to continental scale magnetic anomaly maps are becoming increasingly available from airborne, shipborne, and terrestrial surveys. Satellite data can be used to help fill the coverage gaps in regional compilations of these near-surface surveys. For the near-surface Antarctic magnetic anomaly map being produced by the Antarctic Digital Magnetic Anomaly Project (ADMAP), we show that near-surface magnetic anomaly estimation is greatly enhanced by the joint inversion of the near-surface data with the CHAMP observations relative to the data from the Magsat and Ørsted missions that respectively suffer from lower measurement accuracy and higher orbital altitudes. The analysis also suggests that considerable new insights on the magnetic properties of the lithosphere may be revealed by a further order-of-magnitude improvement in the accuracy of the magnetometer measurements at minimum orbital altitude.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Briggs IC (1974) Machine contouring using minimum curvature. Geophysics, 39, 39–48.
Foster MR, Guinzy NJ (1967) The coefficient of coherence: Its estimation and use in geophysical prospecting. Geophysics, 32, 602–616.
Golynsky AV, Chiappini M, Damaske D, Finn C, Ishihara T, Morris P, Nogi Y and von Frese RRB (2001) ADMAP — A digital magnetic anomaly map of the Antarctic. EOS (AM. Geophys. Union Trans.) 82, S 132.
Kim J-H (1995) Improved Recovery of Gravity Anomalies from Dense Altimeter Data. Ph.D. Dissertation, The Ohio State University, Columbus.
Langei RA, Hinze WJ (1998) The Magnetic Field of the Earth’s Lithosphere: The Satellite Perspective, Cambridge Univ., USA.
Neubert T, Mandea M, Hulot G, von Frese RRF, Primdahl F, Jørgensen JL, Friis Christensen E, Stauning P, Olsen N, Risbo T, (2001) Ørsted satellite captures highprecision geomagnetic field data. EOS (Am Geophys Union Trans), 82, 81, 86–88.
Ravat DN, Purucker M, (1999) The future of satellite magnetic anomaly studies is bright!. The Leading Edge, 18, 326–329.
Smith WHF, Wessel P, (1990) Gridding with continuous curvature splines in tension. Geophysics, 55, 293–305.
von Frese RRB, Hinze WJ, Braile LW, Luca AJ, (1981) Spherical earth gravity and magnetic anomaly modeling by Gauss-Legendre quadrature integration. J Geophys, 49, 234–242.
von Frese RRB, Ravat DN, Hinze WJ, McGue CA, (1988) Improved inversion of geopotential field anomalies. Geophysics, 53, 375–385.
von Frese RRB, Tan L, Kim JW, Bentley CR, (1999) Antarctic crustal modeling from the spectral correlation of free-air gravity anomalies with the terrain. J Geophys Res, 104, 25275–25296.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2003 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Kim, H.R., von Frese, R.R.B., Taylor, P.T., Kim, J.W. (2003). CHAMP Enhances Utility of Satellite Magnetic Observations to Augment Near-Surface Magnetic Survey Coverage. In: Reigber, C., Lühr, H., Schwintzer, P. (eds) First CHAMP Mission Results for Gravity, Magnetic and Atmospheric Studies. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-38366-6_43
Download citation
DOI: https://doi.org/10.1007/978-3-540-38366-6_43
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-53544-4
Online ISBN: 978-3-540-38366-6
eBook Packages: Springer Book Archive