TRMM-LBA AMPR Microwave Brightness Temperatures Over Amazon Basin

AMPR microwave radiometer data were collected during the 1999 TRMM-LBA field campaign to study tropical convection. Measurements include brightness temperatures at four distinct frequencies (10.7, 19.35, 37.1, and 85.5 GHz) over a five-week period. The dataset was produced by the GHRC DAAC as part of a NASA ground validation mission.

Use Cases

• Validating satellite-based precipitation estimates from the TRMM mission using ground-based microwave brightness temperatures.
• Analyzing the relationship between multi-frequency microwave signatures and convective storm properties in the humid tropics.
• Studying spatial and temporal patterns of atmospheric convection over the Amazon rainforest during the wet season.

Strengths

• Data covers a focused, five-week intensive observation period from January 23 to February 26, 1999.
• Provides measurements at four specific microwave frequencies (10.7, 19.35, 37.1, 85.5 GHz) for detailed spectral analysis.
• Geographic domain is precisely defined within the Brazilian Amazon Basin (16°S to 6°N, 76°W to 49°W).

Limitations

• Specific column names, row counts, and file sizes are not provided by any source.
• Conflicting license information exists between 'other-license-specified' and 'None' across platforms.
• Data is from a single, historical field campaign and is not updated.

Provenance

Source

GHRC DAAC (Global Hydrology Resource Center Distributed Active Archive Center).

Collection Method

Collected by the Advanced Microwave Precipitation Radiometer (AMPR) instrument deployed on an aircraft during the TRMM-LBA field campaign.

Time Range

1999-01 23 to 1999-02-26

Freshness

2026-03-12 20:45:56.106505

Geography

Brazilian Amazon Basin, specifically Rondonia, Brazil, between 16°S to 6°N latitude and 76°W to 49°W longitude.