Computer Science – Sound
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufm.p52a0570p&link_type=abstract
American Geophysical Union, Fall Meeting 2001, abstract #P52A-0570
Computer Science
Sound
0343 Planetary Atmospheres (5405, 5407, 5409, 5704, 5705, 5707)
Scientific paper
The pointwise meteorological observations of the Viking Lander and Mars Pathfinder as well as the orbital mapping and sounding performed by, e.g., Mariner 9, Viking Orbiters and the Mars Climate Orbiter have given a good understanding of the basic behavior of the Martian atmosphere. However, the more detailed characterisation of the Martian circulation patterns, boundary layer phenomena and climatological cycles requires deployment of meteorological surface networks. The European NetLander concept comprising four well-instrumented landers is being studied for launch in 2007 and operations spanning at least a Martian year. The landers are to be deployed to areas in both Martian hemispheres in tropics to low mid-latitudes. The NetLander ATMIS (Atmospheric structure and Meteorological Instrument System) on board each of the landers is designed to measure atmospheric vertical profiles of density, pressure and temperature during the descent onto the surface, as well as pressure, atmospheric and ground temperatures, wind, atmospheric optical thickness and humidity through a full Martian year, possibly beyond. The main operational objective of this meteorological experiment is to provide a regular time series of the meteorological parameters as well as accelerated measurement campaigns. Such a data set would substantially improve our understanding of the atmospheric structure, dynamics, climatological cycles, and the atmosphere-surface interactions. The ATMIS sensor systems and measurement approaches described here are based on solutions and technologies tested for similar observations on Mars-96, Mars Pathfinder, Huygens, and Mars Polar Lander. These technologies are developed further for NetLander mission for the ATMIS experiment. Much emphasis is given for proper qualification and calibration of the sensors. NetLander ATMIS will more than double the number of in situ vertical profiles, perform the first in situ meteorological observations in the southern hemisphere and provide the first simultaneous multi-site observations of the local and global circulations, in a variety of locations and terrains.
Calcutt Simon
Crisp Dave
Harri A.
Larsen Soeren S.
Lehto Ari
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