TROPESS CrIS-JPSS1: Deuterated Water Vapor Vertical Profiles

From April 1, 2021 to the present, this dataset provides daily global vertical profiles of semi-heavy water (HDO) in the atmosphere. It is derived from the CrIS instrument on the NOAA-20 satellite using the MUSES optimal estimation algorithm. The data offers the retrieved atmospheric state, formal uncertainties, and diagnostic information at 17 vertical levels from the surface to 0.1 hPa.

Use Cases

• Studying the global hydrological cycle and water isotope fractionation based on HDO concentration profiles.
• Validating atmospheric chemistry and climate models using vertical distribution data with formal uncertainties.
• Investigating tropospheric transport processes and moisture sources using deuterated water vapor as a tracer.
• Assimilating satellite-retrieved atmospheric state information into numerical weather prediction systems.

Strengths

• Provides a continuous, daily global record from April 2021 onward, supporting longitudinal climate studies.
• Offers high vertical resolution with data reported at 17 distinct pressure levels.
• Data is processed using a sophisticated, documented optimal estimation algorithm (MUSES).
• Has a fine spatial resolution of approximately 14 km at the satellite nadir.

Limitations

• Column names and a precise row count are not provided in the available metadata, limiting immediate usability.
• The license is ambiguously listed as 'other-license-specified' without clear terms.
• Metadata completeness varies across platforms, with some listing no tags, size, or author.

Provenance

Source

NASA TROPESS project, Principal Investigator Kevin W. Bowman, data from CrIS instrument on JPSS-1 (NOAA-20) satellite.

Collection Method

Satellite remote sensing data processed with the MUlti-SpEctra, MUlti-SpEcies, Multi-SEnsors (MUSES) optimal estimation algorithm.

Time Range

2021-04-01 to present

Freshness

2026-04-09 21:36:35.461337

Geography

Global