TROPESS CrIS-SNPP: Delhi Atmospheric Gas Profiles 2016-2021

From 2016-01-02 to 2021-05-21, this dataset provides daily vertical profiles of six atmospheric gases over Delhi. It contains the vertical distribution of methane (CH4), carbon monoxide (CO), hydrogen deuterium oxide (HDO), ammonia (NH3), ozone (O3), and peroxyacetyl nitrate (PAN), retrieved from the CrIS instrument on the Suomi-NPP satellite. Data are reported at 17 vertical levels from the surface to 0.1 hPa with a spatial resolution of 14 km.

Use Cases

• Analyzing temporal trends of ozone and methane concentrations over Delhi based on daily vertical profiles.
• Studying the vertical distribution of ammonia and PAN as indicators of urban air pollution.
• Assessing satellite-derived uncertainties for trace gases like CO and HDO for model validation.
• Investigating the spatial patterns of atmospheric chemistry within a 3x3 degree region centered on Delhi.

Strengths

• Provides a multi-year time series (over 5 years) for consistent atmospheric monitoring.
• Includes formal uncertainties for each retrieved gas species, supporting quantitative analysis.
• Offers high vertical resolution with data reported at 17 distinct pressure levels.

Limitations

• Column names are unknown across all sources, limiting precise understanding of data structure.
• Row counts and dataset size are unspecified, making it difficult to gauge data volume.
• The license is ambiguously listed as 'other-license-specified' without further detail.

Provenance

Source

NASA TRopospheric Ozone and Precursors from Earth System Sounding (TROPESS) project, GES_DISC.

Collection Method

Data retrieved using the MUlti-SpEctra, MUlti-SpEcies, Multi-SEnsors (MUSES) optimal estimation algorithm from the CrIS instrument.

Time Range

2016-01-02 to 2021-05-21

Freshness

2026-04-09 21:36:03.798037

Geography

A 3x3 degree region centered on Delhi, India.