TOVSAMND: Global Atmospheric Profiles from NOAA-12 Satellite

TOVSAMND provides Level 3 geophysical parameters derived from the TIROS Operational Vertical Sounder (TOVS) aboard the NOAA-12 satellite. The dataset uses a physical retrieval method (Path A) to produce global, 3-dimensional fields of atmospheric temperature and moisture structure. Derived quantities include surface temperatures, outgoing longwave radiation, cloud properties, total ozone, and precipitation estimates.

Use Cases

• Validating and initializing General Circulation Models (GCMs) using the assimilated 6-hour forecast-retrieval-analysis cycle data.
• Analyzing global cloud fraction and cloud top properties for climate feedback studies.
• Monitoring sea surface and land surface temperature trends from satellite retrievals.
• Estimating total atmospheric ozone overburden and layered precipitable water for atmospheric chemistry research.
• Studying the Earth's radiation budget through outgoing longwave radiation (OLR) measurements.

Strengths

• Employs a well-documented physical retrieval algorithm (Susskind et al., 1984) and assimilates in-situ measurements like radiosondes.
• Provides a globally consistent, 3-dimensional view of the atmosphere derived from 20-channel HIRS2 and 4-channel MSU instruments.
• Data is produced by NASA's Goddard Space Flight Center (GES_DISC), indicating institutional authority.

Limitations

• Key metadata is missing or conflicting: row/column counts and exact file size are unknown; last update dates conflict between 1994 and 2026.
• The dataset is dependent on a specific satellite (NOAA-12) and a hydrodynamic model, which may limit generalizability.
• Column names are not explicitly listed, requiring users to infer data structure from descriptions.

Provenance

Source

Satellite Data Utilization Office, Goddard Laboratory for Atmospheres, NASA/GSFC.

Collection Method

Physical retrieval from NOAA-12 TOVS (HIRS2/MSU) data using the Path A scheme, assimilated with in-situ measurements via Optimal Interpolation.

Time Range

null (specific start/end dates not provided)

Freshness

2026-04-09 21:30:17.763581 (noted on two platforms, but conflicts with a 1994 date, indicating potential metadata error)

Geography

Global