Journal article
A flight test of the strapdown airborne gravimeter SGA-WZ in Greenland
An airborne gravimeter is one of the most important tools for gravity data collection over large areas with mGal accuracy and a spatial resolution of several kilometers. In August 2012, a flight test was carried out to determine the feasibility and to assess the accuracy of the new Chinese SGA-WZ strapdown airborne gravimeter in Greenland, in an area with good gravity coverage from earlier marine and airborne surveys.
An overview of this new system SGA-WZ is given, including system design, sensor performance and data processing. The processing of the SGA-WZ includes a 160 s length finite impulse response filter, corresponding to a spatial resolution of 6 km. For the primary repeated line, a mean r.m.s. deviation of the differences was less than 1.5 mGal, with the error estimate confirmed from ground truth data.
This implies that the SGA-WZ could meet standard geophysical survey requirements at the 1 mGal level.
| Language: | English |
|---|---|
| Publisher: | MDPI |
| Year: | 2015 |
| Pages: | 13258-13269 |
| ISSN: | 14243210 and 14248220 |
| Types: | Journal article |
| DOI: | 10.3390/s150613258 |
| ORCIDs: | Forsberg, René and Olesen, Arne Vestergaard |
