TROPESS CrIS-SNPP L2: Tokyo Megacity Atmospheric Gas and Temperature Profiles

Tokyo Megacity is the focus of this satellite-derived dataset, which provides vertical profiles of seven atmospheric gases and temperature from 2016 to 2021. Data from the CrIS instrument on the Suomi-NPP satellite are processed using the MUSES optimal estimation algorithm, offering daily files at 17 vertical levels and a 14 km spatial resolution. The dataset is part of the NASA TROPESS project's Special Collections, led by Principal Investigator Kevin W. Bowman.

Use Cases

• Tracking urban air pollution trends based on vertical profiles of CO, NH3, and O3.
• Studying atmospheric chemistry and transport using co-located measurements of CH4, H2O, HDO, and PAN.
• Validating regional climate or air quality models with satellite-derived temperature and gas concentration profiles.
• Analyzing seasonal and interannual variability of trace gases over a major metropolitan area.

Strengths

• Provides vertical distribution data at 17 levels from the surface to 0.1 hPa, offering detailed atmospheric structure.
• Covers a multi-year time period from 2016-01-02 to 2021-05-21 for longitudinal analysis.
• Features a defined spatial focus on a 3x3 degree region centered on Tokyo Megacity.
• Includes formal uncertainties for all retrieved atmospheric variables.

Limitations

• Dataset size, row count, and specific column names are not provided in the available metadata.
• The license is ambiguously listed as 'other-license-specified' without explicit terms.
• Data collection ended in May 2021, limiting analysis of recent conditions.

Provenance

Source

National Aeronautics and Space Administration (NASA), TROPESS project, Principal Investigator Kevin W. Bowman.

Collection Method

Satellite remote sensing data from the CrIS instrument on the Suomi-NPP satellite, processed with the MUSES optimal estimation algorithm.

Time Range

2016-01-02 to 2021-05-21

Freshness

2026-04-09 21:35:30.584498 (metadata last updated on datagov)

Geography

Centered on a 3x3 degree region over Tokyo Megacity.