Global characterization of the early-season dust storm of Mars year 36

IF 2.5 2区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS

Icarus Pub Date : 2024-11-07 DOI:10.1016/j.icarus.2024.116369

C. Martín-Rubio, A. Vicente-Retortillo, G. Martínez-Esteve, F. Gómez, J.A. Rodríguez-Manfredi

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引用次数: 0

Abstract

Dust storms are one of the most important dust transport mechanisms on Mars with significant impacts on temperatures and atmospheric dynamics. Regional storms generally occur during the spring and summer of the southern hemisphere, but some of them have been observed earlier in the year. While these early-season storms have been little studied over the years, their occurrence produces important dust liftings. Their study, both vertically and horizontally, allows us to understand the mechanism of dust distribution that initiates them and the areas in which their onset takes place. In this study we compare the dust patterns of the early storms of MY 29 and 36. In addition, we analyzed globally, in each longitude, the early storm that occurred in MY 36 which was the most intense detected in such an early time. It presents maximum values of column dust optical depth (CDOD) of 0.5 and temperatures of 197 K. We use dust and temperature measurements provided by the Mars Climate Sounder (MCS) instrument and images by the Mars Color Imager (MARCI), both on board Mars Reconnaissance Orbiter (MRO).

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火星第 36 年早季沙尘暴的全球特征

尘暴是火星上最重要的尘土飞扬机制之一，对温度和大气动力学有重大影响。区域性风暴一般发生在南半球的春季和夏季，但也观测到一些在一年中较早的时候发生。虽然多年来对这些早季风暴的研究很少，但它们的出现会产生重要的尘埃扬升。通过对它们的垂直和水平研究，我们可以了解引发它们的沙尘分布机制以及它们发生的地区。在这项研究中，我们比较了 MY 29 和 36 早期风暴的沙尘模式。此外，我们还在每个经度对发生在 MY 36 的早期风暴进行了全球分析，该风暴是在如此早的时间内探测到的最强烈的风暴。我们使用了火星气候探测器（MCS）提供的尘埃和温度测量数据以及火星彩色成像仪（MARCI）提供的图像，这两台仪器都搭载在火星勘测轨道器（MRO）上。

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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来源期刊

Icarus 地学天文-天文与天体物理

CiteScore

6.30

自引率

18.80%

发文量

356

审稿时长

2-4 weeks

期刊介绍： Icarus is devoted to the publication of original contributions in the field of Solar System studies. Manuscripts reporting the results of new research - observational, experimental, or theoretical - concerning the astronomy, geology, meteorology, physics, chemistry, biology, and other scientific aspects of our Solar System or extrasolar systems are welcome. The journal generally does not publish papers devoted exclusively to the Sun, the Earth, celestial mechanics, meteoritics, or astrophysics. Icarus does not publish papers that provide "improved" versions of Bode''s law, or other numerical relations, without a sound physical basis. Icarus does not publish meeting announcements or general notices. Reviews, historical papers, and manuscripts describing spacecraft instrumentation may be considered, but only with prior approval of the editor. An entire issue of the journal is occasionally devoted to a single subject, usually arising from a conference on the same topic. The language of publication is English. American or British usage is accepted, but not a mixture of these.