TROPESS CrIS-SNPP: Atmospheric Profiles Over Beijing Megacity

From 2016-01-02 to 2021-05-21, this dataset provides daily vertical profiles of seven atmospheric gases and temperature over a 3x3 degree region centered on Beijing. The data are derived from the CrIS instrument on the Suomi-NPP satellite using the MUSES optimal estimation algorithm. Each file contains measurements at 17 vertical levels from the surface to 0.1 hPa, with a spatial resolution of 14 km.

Use Cases

• Analyzing vertical distribution of methane (CH4) and carbon monoxide (CO) to study pollution sources and transport.
• Monitoring ozone (O3) profiles to assess stratospheric-tropospheric exchange and urban air quality.
• Investigating ammonia (NH3) and peroxyacetyl nitrate (PAN) concentrations as indicators of agricultural and photochemical pollution.
• Studying water vapor (H2O) and its deuterated form (HDO) for insights into atmospheric humidity and hydrological processes.
• Validating atmospheric models with satellite-derived temperature and trace gas profiles over a specific urban region.

Strengths

• Provides multi-year coverage (over 5 years) for a consistent urban study area.
• Contains vertical profiles for seven specific gases (CH4, CO, H2O, HDO, NH3, O3, PAN) and temperature with formal uncertainties.
• Offers high vertical resolution with data reported at 17 distinct levels from the surface to 0.1 hPa.

Limitations

• The dataset's exact row count and file size are unspecified across all sources, limiting precise volume assessment.
• Metadata for columns is listed as 'unknown', hindering detailed understanding of the data structure.
• The license is noted as 'other-license-specified' without further detail, requiring users to investigate terms.

Provenance

Source

NASA TROPESS project, GES DISC.

Collection Method

Data retrieved from the CrIS instrument on the Suomi-NPP satellite using the MUSES optimal estimation algorithm.

Time Range

2016-01-02 to 2021-05-21

Freshness

2026-04-09 21:22:05.592768

Geography

A 3x3 degree region centered on Beijing, China.