Mathematics – Logic
Scientific paper
Jan 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004qjrms.130..669s&link_type=abstract
Quarterly Journal of the Royal Meteorological Society, vol. 130, Issue 597, p.669-683
Mathematics
Logic
18
Diurnal Cycle, Planetary Atmospheres, 1-D Modelling
Scientific paper
The diurnal cycle in the temperature and wind speed of the Mars Pathfinder lander (MPF) is compared with the results from a one-dimensional high-solution boundary-layer model. The radiation scheme of the model has been validated against line-by-line calculations in an average Martian case. The agreement with MPF observations is good. Strong daytime turbulent variability and steep vertical temperature gradients characterize the observations. A detailed look at the model physics reveals that the thin atmosphere responds strongly to thermal radiation. During the daytime, absorption of surface-emitted thermal radiation by CO2, water vapour and dust is the main heating agent below 200 m despite the fact that the surface layer is strongly convective and dust absorbs solar radiation. The night-time inversion is also transferred to the air mainly by long-wave processes, although turbulent cooling dominates very near the surface (below 40 m). The near-surface net heating/cooling displays a sensitive balance between several large and opposite physical processes, wherefore accurate algorithms and high resolution are needed for detailed model results. The modelled hydrologic cycle reveals a well-mixed layer of up to 5 km with thin icy fog and frost forming in the night-time. These sublimate back to the air soon after sunrise.
Harri Ari-Matti
Kauhanen Janne
Määttänen Anni
Savijärvi Hannu
No associations
LandOfFree
Mars Pathfinder: New data and new model simulations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Mars Pathfinder: New data and new model simulations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mars Pathfinder: New data and new model simulations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-828260