Accession Number:

ADA289442

Title:

Measurements of HF Auroral Clutter Using the Verona Ava Linear Array Radar (VALAR).

Descriptive Note:

Rept. for Jun 90-Jun 91,

Corporate Author:

ROME LAB HANSCOM AFB MA

Personal Author(s):

• Choi, David S.
• Weijers, Bertus
• Myers, Neil B.

Report Date:

1994-03-01

Pagination or Media Count:

25.0

Abstract:

Measurements of high frequency HF auroral clutter using the Verona Ava Linear Array Radar VALAR system are presented. VALAR is an experimental HF backscatter system capable of obtaining high resolution synoptic mapping of HF auroral clutter. The receive system includes a 700 meter long linear array. providing the high azimuthal resolution required for determining the spatial distribution of HF auroral clutter. Since the completion of the system at the end of 1989, data acquisition campaigns have been carried out on a near-monthly basis. In this report, we provide a brief description of VALAR and present preliminary measurements of three types of phenomena ground backscatter, slant-F, and auroral backscatter.

Descriptors:

• *AURORAE
• *OVER THE HORIZON RADAR
• IONOSPHERE
• MAGNETIC FIELDS
• HIGH FREQUENCY
• CLUTTER
• RADAR TRACKING
• DOPPLER RADAR
• BACKSCATTERING
• REFLECTION
• HIGH RESOLUTION
• DATA ACQUISITION
• TARGET DETECTION
• F REGION
• ANTENNA ARRAYS
• IONOGRAMS

Subject Categories:

• Atmospheric Physics
• Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE