Declassified UFO / UAP Document
VOLUME 3 - MISCELLANEOUS RELATED STUDIES: CHAPTER 1 - RADAR DETECTION OF UAPs IN THE UKADR
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AI-Generated Summary
This intelligence assessment examines the technical difficulties of detecting UAP via radar, concluding they are likely atmospheric plasma phenomena with small, fluctuating radar cross-sections. It highlights the disparity between visual sightings and radar tracking, referencing historical data from the UK and Spain.
This document, titled 'Volume 3 - Miscellaneous Related Studies: Chapter 1 - Radar Detection of UAPs in the UKADR', provides a technical analysis of the challenges associated with detecting Unidentified Aerial Phenomena (UAP) using radar systems within the United Kingdom Air Defence Region (UKADR). The assessment posits that UAP are primarily atmospheric plasma phenomena. The text details various factors that complicate radar detection, including atmospheric conditions like temperature inversions and pressure gradients, which can cause anomalous propagation or 'angels.' It also discusses the impact of electromagnetic effects, such as those generated by aircraft moving through the Earth's magnetic field, and the physical characteristics of plasma, which can manifest as spheres, tubes, or cylinders. The document highlights that the radar cross-section (RCS) of these plasma phenomena is often small and highly variable, making them difficult to distinguish from noise or clutter. It notes that even when radar contact is made, the dwell time of a search beam on a small, fast-moving target may be insufficient to achieve a reliable detection. The author references external research, including a study by the Spanish Air Force, to contextualize the discrepancy between the high number of visual UAP reports and the relatively low number of radar detections. The document concludes that the nature of these plasma targets, combined with the limitations of radar performance, explains the difficulty in consistently tracking UAP.
If as seems quite likely, UAP phenomena is mainly caused by atmospheric plasmas (mis-reporting of man-made objects excepted), this phenomenon can be created by various natural causes for which examples are detailed in the Working Papers at Volume 2.
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Official Assessment
UAP phenomena are likely caused by atmospheric plasmas.
The document concludes that UAP are likely atmospheric plasmas which present significant challenges for radar detection due to small and fluctuating radar cross-sections, atmospheric interference, and the limitations of radar search beams. It notes that visual reports of UAP far outnumber radar detections, citing a Spanish Air Force study as a comparison.
Key Persons
- Bean D.R.Author of cited work
- Dutton E.J.Author of cited work
- Shi JiammingAuthor of cited work