Eisermann, Hannes; Eagles, Graeme; Jokat, Wilfried (2024): Airborne gravity data across Astrid Ridge, East Antarctica [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.961497
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
This data set contains airborne gravity data across central Dronning Maud Land, East Antarctica, acquired during the austral summer of 2009/2010 and within the project 'West-East Gondwana Amalgamation and its Separation' (WEGAS). The data span the offshore Astrid Ridge, and parts of the Nivl and Lazarev ice shelves. The survey was conducted using a ZLS Ultrasys Lacoste & Romberg Air/Sea gravimeter S56 installed into - and operated with - the research aircraft Polar 5. Base readings were performed with a handheld gravity meter at the base station Novolazarevskaja and in Cape Town. A ground speed of 130 knots and a time-domain filter of 220 s leads to a spatial resolution of around 7 km. The average crossover error after bias adjustment is 4.2 mGal. When citing this data set, please also cite the associated manuscript: Eisermann, H., Eagles, G. & Jokat, W. Coastal bathymetry in central Dronning Maud Land controls ice shelf stability. Sci Rep 14, 1367 (2024). https://doi.org/10.1038/s41598-024-51882-2.
Supplement to:
Eisermann, Hannes; Eagles, Graeme; Jokat, Wilfried (2024): Coastal bathymetry in central Dronning Maud Land controls ice shelf stability. Scientific Reports, 14(1), 1367, https://doi.org/10.1038/s41598-024-51882-2
Related to:
Eisermann, Hannes (2024): Bathymetric model beneath Nivl and Lazarev ice shelves, and across Astrid Ridge. PANGAEA, https://doi.org/10.1594/PANGAEA.961492
Coverage:
Median Latitude: -67.408544 * Median Longitude: 12.555133 * South-bound Latitude: -70.611930 * West-bound Longitude: 7.577880 * North-bound Latitude: -64.174180 * East-bound Longitude: 17.619250
Date/Time Start: 2009-12-06T16:32:38 * Date/Time End: 2010-01-26T16:16:22
Event(s):
WEGAS_2009/10_02 * Latitude Start: -70.824122 * Longitude Start: 11.642733 * Latitude End: -70.824125 * Longitude End: 11.642733 * Date/Time Start: 2009-12-06T15:30:35 * Date/Time End: 2009-12-06T22:08:52 * Location: Antarctica, East * Campaign: WEGAS_2009/10 (WEGAS offshore) * Basis: POLAR 5 * Method/Device: Aircraft (AC)
WEGAS_2009/10_03 * Latitude Start: -70.823881 * Longitude Start: 11.640931 * Latitude End: -70.824108 * Longitude End: 11.642664 * Date/Time Start: 2009-12-11T15:35:27 * Date/Time End: 2009-12-11T20:08:23 * Location: Antarctica, East * Campaign: WEGAS_2009/10 (WEGAS offshore) * Basis: POLAR 5 * Method/Device: Aircraft (AC)
WEGAS_2009/10_04 * Latitude Start: -70.824108 * Longitude Start: 11.642665 * Latitude End: -70.824109 * Longitude End: 11.642699 * Date/Time Start: 2009-12-12T10:27:59 * Date/Time End: 2009-12-12T17:19:18 * Location: Antarctica, East * Campaign: WEGAS_2009/10 (WEGAS offshore) * Basis: POLAR 5 * Method/Device: Aircraft (AC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Eisermann, Hannes | |||
| 2 | Line | Line | Eisermann, Hannes | LineID*10000+seconds from start of line | ||
| 3 | LATITUDE | Latitude | Eisermann, Hannes | Geocode | ||
| 4 | LONGITUDE | Longitude | Eisermann, Hannes | Geocode | ||
| 5 | Height | Height | m | Eisermann, Hannes | PGM17 (NGA's Preliminary Geopotential Model 2017) | Height above PGM17 geoid |
| 6 | Gravity | Gravity | mGal | Eisermann, Hannes | Absolute | |
| 7 | Free-air gravity anomaly | FAA | mGal | Eisermann, Hannes | ||
| 8 | DATE/TIME | Date/Time | Eisermann, Hannes | Geocode |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
128088 data points
Download Data
View dataset as HTML (shows only first 2000 rows)