Data Set ID:

APR-2 Dual-frequency Airborne Radar Observations, Wakasa Bay, Version 1

In January and February 2003, the Airborne Second Generation Precipitation Radar (APR-2) collected data in the Wakasa Bay AMSR-E validation campaign over the sea of Japan on board a NASA P-3 aircraft. Data were collected on all P-3 flights that encountered precipitation. APR-2 collected data at 13.405 and 35.605 GHz in a downward-looking, cross-track scanning geometry. The experiment was designed to validate the AMSR-E shallow rain and snow retrievals, and to extend the precipitation database needed to implement a physical validation strategy.

The Level 1 data product consists of the calibrated reflectivity at both 13.405 and 35.605 GHz, as well as the Doppler and linear depolarization ratio (LDR) at 13.405 GHz. Data are available via FTP in binary Hierarchical Data Format (HDF) and browse images.

The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) is a mission instrument launched aboard NASA's Aqua Satellite on 4 May 2002. AMSR-E validation studies linked to rainfall experiments are designed to evaluate the accuracy of AMSR-E precipitation data.

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Geographic Coverage

Data Set Tabs

Temporal Coverage:
  • 2003-01-14 to 2003-02-03
Temporal Resolution:
Not specified
Sensor(s): PR-2
Spatial Coverage:
  • N: 45, S: 30, E: 150, W: 130

Spatial Resolution:
Not Specified
  • Precipitation > Precipitation Amount
  • Precipitation > Precipitation Rate
  • Radar > Radar Backscatter
  • Radar > Radar Imagery
  • Radar > Radar Reflectivity
Data Format(s):
  • HDF
  • JPEG
Data Contributor(s): Eastwood Im

We kindly request that you cite the use of this data set in a publication using the following citation. For more information, see Use and Copyright.

Im, E. 2004. APR-2 Dual-frequency Airborne Radar Observations, Wakasa Bay, Version 1. [indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center.

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Contact Address:
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University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA