Probing Dust and Water in Martian Atmosphere with Far-Infrared Frequency Spacecraft Occultation

被引：0

作者：

Bhattacharya, Ananyo ^{[1
]}

Li, Cheng ^{[1
]}

Renno, Nilton O. ^{[1
]}

Atreya, Sushil K. ^{[1
]}

Sweeney, David ^{[1
,2
]}

机构：

[1] Univ Michigan, Dept Climate & Space Sci & Engn, Ann Arbor, MI 48109 USA

[2] NASA, Jet Prop Lab, Pasadena, CA 91109 USA

来源：

REMOTE SENSING | 2023年 / 15卷 / 18期

关键词：

Mars; radio occultation; dust storms; DATA ASSIMILATION; BOUNDARY-LAYER; MARS; PROFILES; VARIABILITY; IONOSPHERE; IMPACT; MODEL; VENUS;

D O I：

10.3390/rs15184574

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Airborne dust plays an active role in determining the thermal structure and chemical composition of the present-day atmosphere of Mars and possibly the planet's climate evolution over time through radiative-convective and cloud microphysics processes. Thus, accurate measurements of the distribution and variability of dust are required. Observations from the Mars Global Surveyor/Thermal Emission Spectrometer Mars Mars Reconnaissance Orbiter/Mars Climate Sounder and Mars Express/Fourier Transform Spectrometer and the Curiosity Rover have limited capability to measure dust. We show that spacecraft occultation of the Martian atmosphere at far-infrared frequencies between 1 and 10 THz can provide the needed global and temporal data on atmospheric dust by providing co-located measurements of temperature and dust opacity from the top of the atmosphere all the way down to the surface. In addition, spacecraft occultation by a small-satellite constellation could provide global measurements of the development of dust storms.

引用

页数：14