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QRA

Index QRA

The acronym QRA may refer to. [1]

7 relations: QRA locator, Quantile regression averaging, Quaternary science, Queensland Regional Airlines, Quick Reaction Alert, Rand Airport, Risk assessment.

QRA locator

The QRA locator, also called QTH locator in some publications, is an obsolete geographic coordinate system used by amateur radio operators in Europe before the introduction of the Maidenhead Locator System.

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Quantile regression averaging

Quantile Regression Averaging (QRA) is a forecast combination approach to the computation of prediction intervals.

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Quaternary science

Quaternary science is an inter-disciplinary field of study focusing on the Quaternary period, which encompasses the last 2.6 million years.

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Queensland Regional Airlines

Queensland Regional Airlines was an airline based in Cairns, Queensland, Australia.

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Quick Reaction Alert

Quick Reaction Alert, known colloquially as QRA, is state of readiness and modus operandi of air defence maintained at all hours of the day by NATO, mainly involving the Royal Air Force (RAF).

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Rand Airport

Rand Airport is an airport in Germiston, South Africa.

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Risk assessment

Risk assessment is the determination of quantitative or qualitative estimate of risk related to a well-defined situation and a recognized threat (also called hazard).

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References

[1] https://en.wikipedia.org/wiki/QRA

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