Data · collection
Measurements of the mixing ratios of the C2-C10 non-methane hydrocarbons from Arrival Heights since 1990
Listed in NASA Earthdata CMR
A large variety of nonmethane hydrocarbons (NMHCs) are found throughout the troposphere in varying concentrations.
Description
The reaction of a NMHC with the hydroxyl (OH) molecule causes atmospheric oxidation. Small whole dry air samples (2L) are collected annually (between 12 and 18 samples) from Arrival Heights (since 1990), dried using magnesium perchlorate and analysed to determine the mixing ratio of C2-C10 NMHC as a means of deducing atmospheric oxidation.
Sample collection is aimed at the clean sector of the sky from the West through North to East, throughout the year.
Links
Get the data
- niwa.co.nz /our-science/atmosphere/baring/info ↗
NIWA's atmospheric homepage with links to ftp sites with data
download · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214593439-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214593439-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Air Quality · GROUND-BASED OBSERVATIONS · Non-Methane Hydrocarbons/Volatile Organic Compounds · Trace Gases/Trace Species
- Inferred from text
- Atmospheric sciences 69%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214593439-SCIOPS | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3701 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (69%) |
| concepts[measured_variable].gcmd:earth-science/atmosphere/air-quality | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/carbon-and-hydrocarbon-compounds/non-methane-hydrocarbons-volatile-organic-compounds | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/trace-gases-trace-species | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:ground-based-observations | 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 |