粒子运动决定了平流层中生物气溶胶粒子的类型

IF 1.7 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

International Journal of Astrobiology Pub Date : 2023-01-09 DOI:10.1017/s1473550422000441

K. Miki

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引用次数: 1

摘要

平流层中的生物气溶胶颗粒是航空生物学和天体生物学研究的热点。尽管各种研究已经成功地对平流层中的生物气溶胶颗粒进行了采样，但评估这些生物气溶胶颗粒如何以及为什么能够上升到平流层水平的研究有限。这项研究测试了作用在平流层颗粒上的不同驱动力，以模拟具有各种生物气溶胶特征的颗粒的运动。研究结果表明，花粉大小的小颗粒几乎不能悬浮在平流层中，尽管附着在细菌或真菌等微生物上的孢子大小的灰尘颗粒可能能够做到这一点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Particle motion determines the types of bioaerosol particles in the stratosphere

Bioaerosol particles in the stratosphere are topics of interest for aerobiological and astrobiological studies. Although various studies have succeeded in sampling bioaerosol particles in the stratosphere, limited research has been conducted to evaluate how and why these bioaerosol particles can lift up to as high as the stratospheric level. This study tested different driving forces acting on particles in the stratosphere in order to simulate the motion of particles with various bioaerosol characteristics. The findings show that small pollen-sized particles can scarcely levitate in the stratosphere, although spore-sized and dust particles attached to microorganisms such as bacteria or fungus might be able to do so.

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来源期刊

International Journal of Astrobiology 地学天文-地球科学综合

CiteScore

3.70

自引率

11.80%

发文量

审稿时长

>12 weeks

期刊介绍： International Journal of Astrobiology is the peer-reviewed forum for practitioners in this exciting interdisciplinary field. Coverage includes cosmic prebiotic chemistry, planetary evolution, the search for planetary systems and habitable zones, extremophile biology and experimental simulation of extraterrestrial environments, Mars as an abode of life, life detection in our solar system and beyond, the search for extraterrestrial intelligence, the history of the science of astrobiology, as well as societal and educational aspects of astrobiology. Occasionally an issue of the journal is devoted to the keynote plenary research papers from an international meeting. A notable feature of the journal is the global distribution of its authors.