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Continuation of potential field data to a common altitude. [magsat data
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ducruix, J. |
| Copyright Year | 1981 |
| Description | It is noted that the distorsions introduced by the variation of distance between the sources and the measurement points can be important enough to create fake anomalies. The average amplitude of the anomalies at MAGSAT altitude is of the order of a few nT. Thus it is necessary to be careful in reducing MAGSAT data to a common elevation. The achievement of the corresponding anomaly map is of primary importance for the study of regional and long wave length anomalies. A method for the continuation of potential fields is described which consists in representing any harmonic function (in particular the anomaly is function of space coordinates) as a sum of elementary harmonic functions; the continuation being achieved by an inverse technique. Tests, made on a synthetic set of data, evaluate the method. |
| File Size | 423217 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19820013791 |
| Archival Resource Key | ark:/13960/t7qp0z55c |
| Language | English |
| Publisher Date | 1981-04-01 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Harmonic Functions Geomagnetism Algorithms Potential Fields Earth Resources Program Magnetic Anomalies Magsat Satellites Magnetic Surveys Data Reduction Spherical Coordinates Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
