Data · collection
Solar Chromospheric Variability from the National Solar Observatory (NSO)
Listed in NASA Earthdata CMR
Observations of the disk-integrated solar Ca II K-line are made using the Evans Coronal Facility at The National Solar Observatory/ Sacramento Peak.
Description
A coelostat is used to feed the horizontal Littrow spectrograph and the spectrum from 3898-3954 angstroms is recorded by scanning the grating and digitizing the output of a photomultiplier. About 50-150 spectral scans are made each day.
From 1976-1983 data was obtained on 10% of all days, while from 1984-present data is obtained on about 45% of all days. For more information see: sunspot.noao.edu/nsosp/data/cak_mon.html Data are also available from NOAA/NESDIS/NGDC Solar-Terrestrial Physics Program at: ngdc.noaa.gov/stp/stp.html
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214604022-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214604022-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Calcium Ii K-Line · Corona · OBSERVATORIES · Solar Imagery · SPECTROGRAPHS
- Inferred from text
- Climate change science 70%
Provenance · 1 source records, 12 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214604022-SCIOPS | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3702 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (70%) |
| concepts[instrument].gcmd_instrument:spectrographs | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/sun-earth-interactions/solar-activity/corona | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/sun-earth-interactions/solar-activity/solar-active-regions/calcium-ii-k-line | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/sun-earth-interactions/solar-activity/solar-imagery | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:observatories | 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 |