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Products
There are three types of Level 2 data products:
- Archival
- Standard
- Summary
TROPESS-MUSES Level 2 data are in netcdf format and contain retrieved trace gas species (or temperature) profiles at the observation targets. Level 2 data are generated using legacy TES data processing algorithms and L1B inputs from either a single instrument (e.g., AIRS, CrIS) or combinations of multiple instruments (e.g. AIRS-OMI). Data products also include geolocation information, estimated errors, quality flags and other information needed for science and applications end uses.
Processing Streams: Forward Stream (FS), Reanalysis Stream (RS), and Special Collections (SC).
Value | Description | Notes |
|---|---|---|
| FS | Forward Stream | Products are generated from the MUSES-SDPS forward processing streams. |
| RS | Reanalysis Stream | Products are generated from the MUSES-SDPS reanalysis processing streams. |
| SC | Special Collections | Special Collections including data products produced for measurement campaigns |
Level 2 Product Types and File Size Estimates
| Product Level | Product Name | Granularity | Description | File Size Estimate (approximate size per file, per day; actual size will vary depending on gas species) |
|---|---|---|---|---|
| L2 = Level 2 | Full archival | Daily | Full, archival version of the L2 product, with daily granularity. Contains all variables required for science analysis | ~10 GB |
| Standard | Daily | Standard data product, with daily granularity. “Lite” product that contains a limited set of variables needed for science analysis. | ~100 MB | |
| Summary | Daily | Summary data product, with daily granularity. Contains a limited set of variables needed for science analysis. | ~10 MB |
Summary of species included for each data stream in the TROPESS “Regular Collections” for Archive and Distribution by GES DISC
| Atmospheric Species | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Data stream | Processing Strategy | Sub-streams | Day/Night Coverage | O3 | CO | TATM | HDO_H2O** | CH4 | NH3 | PAN | O3 IRKs | Methanol |
| AIRS+OMI | FS, RS | AIRS+OMI | Daytime only | |||||||||
| OMI | Daytime only | |||||||||||
| AIRS | Daytime + Nighttime | |||||||||||
| CrIS | FS, RS | CrIS-SNPP | Daytime + Nighttime | |||||||||
| CrIS-JPSS-1 | Daytime + Nighttime | |||||||||||
*Note: Surface Temperature (T_SURF) is included in the species product files, not as a separate file so it is not included in this table.
**H2O (water vapor) product was to be contained within the HDO product.
File Format and Structure
The files in these collections are in NetCDF-4 format. NetCDF is a set of software libraries and self-describing, machine-independent data formats that support the creation, access, and sharing of array-oriented scientific data that was developed by UCAR/Unidata (http://doi.org/10.5065/D6H70CW6) https://www.unidata.ucar.edu/software/netcdf/.
Special Collections
Products that are typically made available through the DAAC include:
- West Coast Fires 2020
- CrIS CO dataset (Buchholz et al., 2020)
- Australian Fires 2019-2020