Data · collection
Investigation of Atmospheric Chemistry and Dynamics Through Oxygen and Sulfur Isotopes in Volcanic Sulfate
Listed in NASA Earthdata CMR
This dataset contains chemical measurements of volcanic sulfate deposits in Antarctic snow, in a collaborative project between South Dakota State University (SDSU, Jihong Cole-Dai, PI) and University of California, San Diego (UCSD, Mark Thiemens, PI).
Description
The sulfate deposits of several major volcanic eruptions over the last 1000 years were found, by means of ion chromatographic analysis of major ions, in a few large snow blocks and a number of South Pole ice cores retrieved in 2004-2005.
The volcanic events include: Pinatubo (1991), Cerro Hudson (1991), Tambora (1815), Unknown (1809), Kuwae (1453/54), and Unknown (1259). The volcanic sulfate was extracted from the snow blocks and ice cores, concentrated, and subsequently analyzed by isotope mass spectrometry for multiple oxygen (17O/16O, 18O/16O) and sulfur (33S, 34S, 36S) isotope composition, which is used to infer the atmospheric, and stratospheric in particular, chemical processes and dynamics of the oxidation of volcanic sulfur dioxide to sulfate.
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The dataset is organized by volcanic events in the snow and ice samples. For each event, the following data are included: (1) the continuous record of sulfate concentration along the depth of the core section in which the event is located, (2) the total mass of volcanic sulfate in the extracted sample(s) of the event, (3) isotopic composition of each volcanic sulfate sample and its associated background sulfate sample.
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214585854-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214585854-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- CORING DEVICES · ION CHROMATOGRAPHS · Isotopes · Isotopes · Not provided · Sulfate Particles · Volcanic Deposits
- Inferred from text
- Atmospheric composition, chemistry and processes 79% · Mass spectrometry 75%
Provenance · 1 source records, 15 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214585854-SCIOPS | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:field:370104 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (79%) |
| concepts[instrument].gcmd_instrument:coring-devices | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:ion-chromatographs | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/aerosols/sulfate-particles | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/cryosphere/sea-ice/isotopes | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/paleoclimate/ice-core-records/isotopes | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/paleoclimate/ice-core-records/volcanic-deposits | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:mass-spectrometry | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[platform].gcmd_platform:not-provided | 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 |