Data · collection
Aerosol optical depths at BTN station
Listed in NASA Earthdata CMR
Measurements performed at BTN (Icaro Camp) in the austral summers 1988 and 1993 with the UVISIR-2 sun-photometer built at the FISBAT-Institute (cfr.
Description
References below). Aerosol optical depth was evaluated taking into account molecular scattering and gaseous absorption as H2O, O3 and NO2 (cfr. references below).
Aerosol optical depths were evaluated at 8 channels centered in the 400 - 1050 nm wavelength range. Because each scanning has the physical meaning of an instantaneous picture of the atmosphere (with the sun at elevation h), we use a single average time for each scanning . The scanning time interval is about 1.5 minutes.
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The relative optical air mass is also given. Data was taken under clear-sky conditions. Legal maximum value of optical depth depends on turbidity daily conditions and wavelength, ranging from 0.03 and 0.15.All values are given with 3 digit.
Missing data are indicated with a 999.000 value.
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214615123-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214615123-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Aerosol Optical Depth/Thickness · Not provided · SUN PHOTOMETERS
- Inferred from text
- Atmospheric sciences 74%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214615123-SCIOPS | 12 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 (74%) |
| concepts[instrument].gcmd_instrument:sun-photometers | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/aerosols/aerosol-optical-depth-thickness | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| 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 |
| license_text | 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 |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |