NDLI: Mars Express and MARSIS

Content Provider	Springer Nature Link
Author	Nielsen, Erling
Copyright Year	2004
Abstract	The Mars Express mission to be launched in 2003 will provide high resolution measurements of the Martian atmosphere and ionosphere. The neutral density, temperature, and composition will be measured, and MARSIS, a low frequency radar experiment, will probe the Martian plasma environment for electron densities in the range from 100 to 3 × 10$^{5}$ electrons/cm$^{−3}$. The radar will for the first time make measurements of the ionosphere in the sub-solar and midnight regions which were not accessible to previous missions. The radar will provide global coverage and an increase in spatial resolution of vertical electron density profiles, which can be used to improve understanding relationships between the neutral atmosphere and ionosphere, and the interactions of the solar wind with the planet. The radar may be able to detect effects associated with magnetic merging, plasma clouds, and plasma streams, which have been predicted in the dayside/terminator ionosphere. Measurements on the nightside can be used to search for proposed fine structures (‘holes’) in the electron density. Hydrodynamic waves are predicted to be excited by the solar wind/ionosphere interaction and their influence on the electron densities can be observed with the radar. Neutral density and temperature profiles are required to understand the details of the vertical variations of the electron density. This includes testing for effects induced on the electron density profiles by dust storms and by precipitations of solar wind ions in cusp-like magnetic regions. The search for trace elements by optical spectrometers may reveal magnesium ions in predicted meteoric layer.
Starting Page	245
Ending Page	262
Page Count	18
File Format	PDF
ISSN	00386308
Journal	Space Science Reviews
Volume Number	111
Issue Number	1-2
e-ISSN	15729672
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2004-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Astronomy, Astrophysics and Cosmology Extraterrestrial Physics, Space Sciences
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Space and Planetary Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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