NASA TRMM Project: Tropical Rainfall and Latent Heating Profiles

Version 07 is the current version of this NASA TRMM dataset, superseding older versions. The dataset provides monthly spectral latent heating profiles derived from TRMM Precipitation Radar (PR) information, including precipitation-top height, surface and melting-level precipitation rates, and rain type. Heating profiles are selected from lookup tables generated from TOGA COARE cloud-resolving model simulations for convective, shallow stratiform, and anvil rain types.

Use Cases

• Estimating vertical profiles of latent heating released by precipitating cloud systems based on TRMM PR information.
• Analyzing differences between shallow and deep convection based on precipitation depth, type, and intensity data.
• Studying the horizontal distribution of tropical rainfall using the 0.25x0.25 degree grid structure.
• Validating or improving cloud-resolving models using the derived heating-profile lookup tables.

Strengths

• Data is in the current Version 07 format, superseding legacy products.
• Heating profiles are derived from numerical simulations of tropical cloud systems from the TOGA COARE experiment.
• Grids are provided at a 0.25x0.25 degree resolution in the Planetary Grid 2 structure.

Limitations

• The CSH algorithm is described as 'severely limited by the inherent sensitivity of the TRMM PR'.
• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.

Provenance

Source

NASA TRMM Project, available via aws_open_data.

Collection Method

Derived from TRMM Precipitation Radar (PR) information and cloud-resolving model (CRM) simulations from the TOGA COARE experiment.

Time Range

Monthly data, but specific temporal coverage is not stated.

Freshness

Version 07 is stated as the current version, but the last update date is unknown.

Geography

Tropical regions, implied by the TRMM (Tropical Rainfall Measuring Mission) focus.