AMPR Microwave Radiometer Data from Arctic Cloud Experiment

Four microwave frequencies (10.7, 19.35, 37.1, and 85.5 GHz) were recorded by the Advanced Microwave Precipitation Radiometer during the FIRE-III/ACE campaign. The dataset captures observations from May 18 to June 6, 1998, focused on the Arctic Ocean near the Beaufort Sea. It was managed by the GHRC DAAC and is hosted on NASA Earthdata and Data.gov platforms.

Use Cases

• Analyzing sea-ice melt onset and progression using multi-frequency brightness temperature time series.
• Studying Arctic cloud properties and their interaction with the surface via 10.7 to 85.5 GHz channel data.
• Validating satellite-derived sea-ice drift models with geolocated radiometer observations from the SHEBA ship.
• Investigating microwave emissivity of different sea-ice types across four distinct frequency bands.

Strengths

• Data is calibrated for four specific microwave frequencies (10.7, 19.35, 37.1, 85.5 GHz), enabling multi-spectral analysis.
• Observations are temporally focused on a key Arctic transition period from May 18 to June 6, 1998.
• Cross-platform presence on NASA Earthdata and Data.gov signals its curated importance for the research community.

Limitations

• Core dataset attributes like row count, file size, and specific column names are not provided by any source.
• Sources conflict on the last updated date, listing both 1998-06 06 and 2026-03-13.
• The license is ambiguously noted as 'other-license-specified' or 'None', requiring user verification.

Provenance

Source

GHRC_DAAC (Global Hydrology Resource Center Distributed Active Archive Center)

Collection Method

Collected by the Advanced Microwave Precipitation Radiometer (AMPR) instrument deployed during the FIRE-III/ACE field campaign.

Time Range

1998-05-18 to 1998-06-06

Freshness

2026-03-13 18:13:15.112128

Geography

Arctic Ocean, in and near the Beaufort Sea off the northern coast of Alaska.