Table · collection · 1999
Measurement of Air Pollution from Satellites (MAPS) Office of Space and Terrestrial Applications - 3 (OSTA3) Carbon Monoxide 5 degree by 5 degree data
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/maps_osta3_co5x5_hdf
MAPS Overview The MAPS experiment measures the global distribution of carbon monoxide (CO) mixing ratios in the free troposphere.
Description
Because of MAPS' previous flights on board the Space Shuttle, Earth system scientists now know that carbon monoxide concentrations in the troposphere are highly variable around the planet, and that widespread burning in the South American Amazon Basin and southern cerrados, the African savannahs,and the Australian grasslands and ranches are major sources of carbon monoxide in the southern hemisphere and tropical troposphere.InstrumentThe MAPS instrument is based on a technique called gas filter radiometry.
Thermal energy from the Earth passes through the atmosphere and enters the viewport of the downlooking MAPS instrument. Carbon monoxide and nitrous oxide (N2O) in the atmosphere produce unique absorption lines in the transmitted energy. The energy which enters the MAPS instrument is split into & three beams.
Read the rest (3 more)
One beam passes through a cell containing CO and falls onto a detector. This CO gas cell acts as a filter for the effects of CO present in the middle troposphere. A second beam falls directly onto a detector without passing through any gas filter.
The difference in the voltage of the signals from these two detectors can be used to determine the amount of CO present in the atmosphere at an altitude of 7-8 km. A third beam of the incident energy passes through a cell containing N2O and falls onto a detector. This N2O gas cell acts as a filter for the effects of N2O present in the atmosphere.
The global distribution of N2O is well known, so the N2O signal can be used to detect the presence of clouds in the field of view and to correct the simultaneous CO measurement for systematic errors in the data. The data that are available from MAPS OSTA3 include a 5 by 5 degree gridded box (MAPS_OSTA3_5X5_HDF) and a second by second data product (MAPS_OSTA3_COSEC_HDF). These data sets are available from the Langley DAAC.
Links
Get the data
- Resource doi.org/10.5067/maps_osta3_co5x5_hdf ↗
DOI data set landing page for MAPS_OSTA3_CO5X5_HDF_1
landing page · download · DOI / persistent id · from NASA CMR, data nasa gov
- Text asdc.larc.nasa.gov/documents/maps/readme/readme_maps_osta3_co5x5_hdf.txt ↗
Readme Information about the MAPS sample read software and data files
documentation · download · from NASA CMR, data nasa gov
- Text asdc.larc.nasa.gov/documents/maps/read_software/compile_read_maps_co5x5.txt ↗
Script that compiles the C code necessary to read the following MAPS HDF data files: 1) MAPS_OSTA3_CO5X5_HDF, 2) MAPS_SRL1_CO5X5_HDF, 3) MAPS_SRL2_CO5X5_HDF
documentation · download · from NASA CMR, data nasa gov
- Resource asdc.larc.nasa.gov/documents/maps/read_software/maps_co5x5_read.c ↗
Sample read program for the following MAPS data sets: MAPS_SRL1_CO5x5_HDF, MAPS_SRL2_CO5x5_HDF, MAPS_OSTA3_CO5x5_HDF - Direct File Download (.c)
documentation · download · from NASA CMR, data nasa gov
- ASDC Data and Information for MAPS asdc.larc.nasa.gov/project/MAPS ↗
documentation · download · project · from NASA CMR, data nasa gov
- PDF asdc.larc.nasa.gov/documents/maps/guide/base_maps_co5x5_dataset.pdf ↗
MAPS 5 degree by 5 degree Langley DAAC Data Set Document
documentation · download · from NASA CMR, data nasa gov
- How to cite ASDC data asdc.larc.nasa.gov/citing-data ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C3880763307-LARC_CLOUD.iso19115 ↗
download · from data nasa gov
- Virtual Directory for MAPS_OSTA3_CO5X5_HDF_1 cmr.earthdata.nasa.gov/virtual-directory/collections/C3880763307-LARC_CLOUD ↗
download · from NASA CMR
- Resource cdiac.ess-dive.lbl.gov/epubs/db/db1020/db1020.html ↗
download · from data nasa gov
- search.earthdata.nasa.gov /search/granules?p=C3880763307-LARC_CLOUD ↗
Earthdata Search for MAPS_OSTA3_CO5X5_HDF_1 (NASA Application to search, discover, visualize, refine, and access NASA Earth Observation data)
download · from NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/measurement-of-air-pollution-from-satellites-maps-offi… ↗
landing page · from data nasa gov
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3880763307-LARC_CLOUD.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=fb68d24f-1310-4feb-8e5c-9fe89d6e4… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3880763307-LARC_CLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Atmospheric Carbon Monoxide · Carbon Monoxide · Gas Filter Correlated Radiometer · Measurement of Air Pollution from Satellite · Nitrous Oxide · NOT APPLICABLE · SPACE SHUTTLES · Space Transport System STS-41G
- From keywords
- Astronomy & Astrophysics · Chemistry · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Atmospheric sciences 74%
Provenance · 2 source records, 24 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3880763307-LARC_CLOUD | 8 d ago | JSON v1 |
| NASA Data Portal | fb68d24f-1310-4feb-8e5c-9fe89d6e4069 | 5 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@1.0.0 | title+keywords+description (74%) |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:chemistry | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[instrument].gcmd_instrument:gfc-radiometer | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:maps | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:not-applicable | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/air-quality/carbon-monoxide | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/carbon-and-hydrocarbon-compounds/atmospheric-carbon-monoxide | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/nitrogen-compounds/nitrous-oxide | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:space-shuttles | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:sts-41g | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| 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 |
| updated_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |