Výsledky vyhledávání - "Brener, Daniel J."

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A hypothesis on ergodicity and the signal-to-noise paradox

Autor: Brener, Daniel J.

Publikováno v: Atmospheric Science Letters, 2024, e1265

This letter raises the possibility that ergodicity concerns might have some bearing on the signal-to-noise paradox. This is explored by applying the ergodic theorem to the theory behind ensemble weather forecasting and the ensemble mean. Using the en

Externí odkaz: http://arxiv.org/abs/2312.04669

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Detecting microbiology in the upper atmosphere: relative-velocity filtered sampling

Autor: Berera, Arjun, Brener, Daniel J., Cockell, Charles S.

Publikováno v: Astrobiology 2023, 469 - 475

The purpose of this paper is to re-open from a practical perspective the question of the extent in altitude of the Earth's biosphere. We make a number of different suggestions for how searches for biological material could be conducted in the mesosph

Externí odkaz: http://arxiv.org/abs/2302.09280

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Akademický článek

A hypothesis on ergodicity and the signal‐to‐noise paradox.

Autor: Brener, Daniel J.¹ (AUTHOR) daniel.brener@ed.ac.uk

Publikováno v: Atmospheric Science Letters (John Wiley & Sons, Inc. ). Nov2024, Vol. 25 Issue 11, p1-9. 9p.

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On the force of vertical winds in the upper atmosphere -- consequences for small biological particles

Autor: Berera, Arjun, Brener, Daniel J.

Publikováno v: Proc. R. Soc. A., 2022, 478:20210626

For many decades vertical winds have been observed at high altitudes of the Earth's atmosphere, in the mesosphere and thermosphere layers. These observations have been used with a simple one dimensional model to make estimates of possible altitude cl

Externí odkaz: http://arxiv.org/abs/2008.02884

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Chaotic measure of the transition between two and three dimensional turbulence

Autor: Clark, Daniel, Armua, Andres, Freeman, Calum, Brener, Daniel J., Berera, Arjun

Publikováno v: Phys. Rev. Fluids 6, 054612 (2021)

Using direct numerical simulation we study the behavior of the maximal Lyapunov exponent in thin-layer turbulence, where one dimension of the system is constrained geometrically. Such systems are known to exhibit transitions from fully three dimensio

Externí odkaz: http://arxiv.org/abs/2007.10955

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