Data · collection
Characterization of Gravity Gradient Noise at LIGO (Laser Interferometer Gravitational Wave Observatory), Livingston, LA
Listed in NASA Earthdata CMR
The researchers wish to characterize the gravity gradient seismic noise at the LIGO Livingston Observatory (LLO).
Description
LIGO (Laser Interferometer Gravitational Wave Observatory) consists of two almost identical large scale land-based Michelson type interferometers sponsored by the NSF. One of these, the LLO, is located in Livingston, LA and the other is at Hanford, WA.
This will be a continuation of work begun last summer. During last summer we concentrated on measuring the relative microseismic noise between pairs of guralp 3esp sensors separated by distances of 4 km. Most of the measurements were performed inside buildings.
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About 2-3 weeks were also spent on preliminary gravity gradient noise measurements with typical separations of 5-30 meter. The researchers would like to continue the gravity gradient noise characterization (in the range 1-30 hz1) with an array of guralp 40 T's.
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214608934-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214608934-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Gravity · Incorporated Research Institutions for Seismology Network - Global Seismographic Network · INTERFEROMETERS · Not provided · Program for Array Seismic Studies of the Continental Lithosphere · Seismic Body Waves · Seismic Surface Waves · SEISMOLOGICAL STATIONS · SEISMOMETERS
- Inferred from text
- Geophysics 73%
Provenance · 1 source records, 16 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214608934-SCIOPS | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3706 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (73%) |
| concepts[instrument].gcmd_instrument:interferometers | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:seismometers | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/gravity-gravitational-field/gravity | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/tectonics/earthquakes/seismic-profile/seismic-body-waves | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/tectonics/earthquakes/seismic-profile/seismic-surface-waves | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:iris-gsn | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:not-provided | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:passcal | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:seismological-stations | 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 |