Data · collection
Geophysical Investigations of Marie Byrd Land Evolution (GIMBLE)
Listed in NASA Earthdata CMR
Marie Byrd Land represents a significant highland dividing the Amundsen Sea Embayment (ASE) of West Antarctica from its Ross Embayment.
Description
Its topographic evolution likely played a key role in the origin of the West Antarctic ice sheet. A number of contesting hypotheses for the origin of Marie Byrd Land make predictions for the potential fields and the geomorphology of the underlying crust.
The Geophysical Investigation of Marie Byrd Land Evolution project was aerogeophysical survey of Marie Byrd Land using with 3 key datasets: gravity, magnetics and radar data. Gravity with collocated radar was collected to constrain the compensation state of Marie Byrd Land, leveraging NSF's investment in the POLENET project; magnetics was collected to assess the potential for ongoing sub ice volcanism (and thus qualitatively assess heat flow); and ice penetrating radar was collected to map out at 5-km resolution the topography of the interior slope of Marie Byrd Land's bedrock, to understand the evolution of erosion and thus regional topography.
Links
Get the data
- usap-dc.org /view/dataset/601001 ↗
GIMBLE.GR2HI2 (Ice thickness and related data over central Marie Byrd Land, West Antarctica)
download · from NASA CMR
- usap-dc.org /view/dataset/601002 ↗
GIMBLE.GMGEO2 (Magnetic anomaly data over central Marie Byrd Land, West Antarctica)
download · from NASA CMR
- usap-dc.org /view/dataset/601003 ↗
GIMBLE.GGCMG2 (Gravity disturbance data over central Marie Byrd Land, West Antarctica)
download · from NASA CMR
Documentation and papers
- NSF Award #1043761 nsf.gov/awardsearch/showAward?AWD_ID=1043761 ↗
documentation · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2532069946-AMD_USAPDC.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2532069946-AMD_USAPDC.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Basler BT-67 · Canadian Micro Gravity GT-1A · Geometry Of Internal Reflections · Glacial Landforms · Glacier Thickness/Ice Sheet Thickness · Gravity Anomalies · Hi-Capability Radar Sounder Version1 · Ice Sheets · Light Detection and Ranging Altimeters · Magnetic Anomalies · NUCLEAR PRECESSION MAGNETOMETER · Volcano Occurrences
- Inferred from text
- Physical geography and environmental geoscience 69%
Provenance · 1 source records, 19 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2532069946-AMD_USAPDC | 8 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3709 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (69%) |
| concepts[instrument].gcmd_instrument:cmg-gt-1a | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:hicars1 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:lidar-altimeters | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:nuclear-precession-magnetometer | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/cryosphere/glaciers-ice-sheets/geometry-of-internal-reflections | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/cryosphere/glaciers-ice-sheets/glacier-thickness-ice-sheet-thickness | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/cryosphere/glaciers-ice-sheets/ice-sheets | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/geomagnetism/magnetic-field/magnetic-anomalies | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/geomorphic-landforms-processes/glacial-landforms | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/gravity-gravitational-field/gravity-anomalies | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/tectonics/volcanic-activity/volcano-occurrences | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:bt-67 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |