TROPESS CrIS-SNPP L2: Atmospheric Gas Profiles for Sao Paulo

NASA's TROPESS project provides vertical profiles of six atmospheric gases measured by the Suomi-NPP satellite's CrIS instrument. The dataset contains daily retrievals of methane, carbon monoxide, water vapor isotope, ammonia, ozone, and peroxyacetyl nitrate over a 3x3 degree region centered on Sao Paulo. Data are reported at 17 vertical levels from the surface to 0.1 hPa with a spatial resolution of 14 km.

Use Cases

• Monitoring urban air pollution trends based on vertical profiles of CO, O3, and NH3.
• Studying tropospheric ozone and its precursors using the MUSES optimal estimation algorithm.
• Analyzing methane and water vapor isotope distributions for climate research.
• Assessing satellite-derived pollutant concentrations for model validation.
• Tracking seasonal and interannual variability of PAN and other trace gases.

Strengths

• Provides vertical distribution data at 17 discrete levels, offering detailed atmospheric structure.
• Uses a sophisticated optimal estimation algorithm (MUSES) for multi-species retrieval.
• Has a consistent daily temporal resolution from February 2021 onward.
• Offers a focused spatial coverage (3x3 degree region) for a major urban area.

Limitations

• Column names and exact row counts are unspecified across all sources.
• License is ambiguously listed as 'other-license-specified' without details.
• Spatial coverage is limited to a single regional target, not global.

Provenance

Source

NASA TROPESS project, GES DISC, Principal Investigator Kevin W. Bowman.

Collection Method

Satellite remote sensing via the CrIS instrument on Suomi-NPP, processed with the MUSES algorithm.

Time Range

2021-02-01 to present

Freshness

2026-04-09 21:21:42.867122

Geography

3x3 degree region centered on Sao Paulo, Brazil.