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Browsing by Author "Barnes, Jeffrey R."

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Browsing by Author "Barnes, Jeffrey R."

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  • Assessment of Environments for Mars Science Laboratory Entry, Descent, and Surface Operations 
    Vasavada, Ashwin R.; Chen, Allen; Barnes, Jeffrey R.; Burkhart, P. Daniel; Cantor, Bruce A.; Dwyer-Cianciolo, Alicia M.; Fergason, Robin L.; Hinson, David P.; Justh, Hilary L.; Kass, David M.; Lewis, Stephen R.; Mischna, Michael A.; Murphy, James R.; Rafkin, Scot C. R.; Tyler, Daniel; Withers, Paul G. (Springer, 2012-09)
    The Mars Science Laboratory mission aims to land a car-sized rover on Mars’ surface and operate it for at least one Mars year in order to assess whether its field area was ever capable of supporting microbial life. Here ...
  • The atmosphere structure and meteorology instrument on the Mars Pathfinder lander 
    Seiff, Alvin; Tillman, James E.; Murphy, James R.; Schofield, John T.; Crisp, David; Barnes, Jeffrey R.; LaBaw, Clayton; Mahoney, Colin; Mihalov, John D.; Wilson, Gregory R.; Haberle, Robert M. (American Geophysical Union, 1997-02-25)
    An instrument on the Pathfinder lander has been designed to measure the structure of Mars’ atmosphere during spacecraft entry and descent from ~150 km altitude to the surface, and to measure meteorological parameters aft ...
  • Baroclinic eddies in the Martian atmosphere : a general circulation model study 
    Matheson, Mark (2000-11-14)
    A variety of general circulation model experiments are performed to investigate the influence of seasonality and topography on the strength of baroclinic eddies in the Martian atmosphere. Three different models are use ...
  • Diurnal and subdiurnal variability in the Mars Pathfinder Presidential meteorology sessions 
    Bennett, Scott (2003-04-28)
    The Mars Pathfinder (MPF) arrived on the Martian surface on 4 July 1997 to become only the third successful landed mission to Mars, recording surface meteorological data intermittently over a period of 83 Martian days ...
  • Expected atmospheric environment for the Phoenix landing season and location 
    Tamppari, Leslie K.; Barnes, Jeffrey R.; Bonfiglio, Eugene; Cantor, Bruce; Friedson, A. James; Ghosh, Amitabha; Grover, M. Rob; Kass, David; Martin, Terry Z.; Mellon, Michael; Michaels, Tim; Murphy, Jim; Rafkin, Scot C. R.; Smith, Michael D.; Tsuyuki, Glenn; Tyler, Daniel; Wolff, Michael (American Geophysical Union, 2008)
    The Phoenix mission, launched on 4 August 2007, landed in the far northern plains of Mars on 25 May 2008. In order to prepare for the landing events and the 90-sol mission, a significant amount of work has gone into ch ...
  • Forced Stationary Planetary Waves in Mars's Winter Atmosphere 
    Hollingsworth, Jeffery L.; Barnes, Jeffrey R. (American Meteorological Society, 1996-02)
    Mariner 9 and Viking spacecraft observations provided evidence for planetary-scale, wavelike disturbances in the Mars winter atmosphere. Possible sources of the wave activity are dynamical instabilities, for example, bar ...
  • General circulation model simulations of the Mars Pathfinder atmospheric structure investigation/meteorology data 
    Haberle, Robert M.; Joshi, Manoj M.; Murphy, James R.; Barnes, Jeffrey R.; Schofield, John T.; Wilson, Greg; Lopez-Valverde, Miguel; Hollingsworth, Jeffrey L.; Bridger, Alison F. C.; Schaeffer, James (American Geophysical Union, 1999-04-25)
    The NASA Ames Mars General Circulation Model is used to interpret selected results from the Mars Pathfinder atmospheric structure instrument/meteorology (ASI/MET) experiment. The present version of the model has an impro ...
  • Low-level jets in the NASA Ames Mars general circulation model 
    Joshi, M. M.; Haberle, Robert M.; Barnes, Jeffrey R.; Murphy, J. R.; Schaeffer, J. (American Geophysical Union, 1997-03-25)
    Previous simulations of the Martian atmosphere have shown how topography acts to confine the low-level Hadley cell flow into intense jets on the eastern flanks of Tharsis and Syrtis Major. We now conduct detailed studies ...
  • Mars atmospheric dynamics as simulated by the NASA Ames general circulation model, 3. Winter quasi-stationary eddies 
    Barnes, Jeffrey R.; Haberle, Robert M.; Pollack, James B.; Lee, Hilda; Schaeffer, James (American Geophysical Union, 1996-05-25)
    A set of simulations with the NASA Ames Mars general circulation model (GCM) has been analyzed to define the basic properties and dynamics of quasi-stationary eddy circulations in the winter hemisphere. These circulation ...
  • The Martian Zonal-Mean Circulation: Angular Momentum and Potential Vorticity Structure in GCM Simulations 
    Barnes, Jeffrey R.; Haberle, Robert M. (American Meteorological Society, 1996-11)
    Analysis of simulations performed with the NASA/Ames Mars GCM shows that under dusty conditions the Northern Hemisphere winter solstice circulation becomes characterized by a zonally averaged state in which the potential ...
  • Mesoscale and large-eddy simulation model studies of the Martian atmosphere in support of Phoenix 
    Tyler, Daniel; Barnes, Jeffrey R.; Skyllingstad, Eric D. (American Geophysical Union, 2008-08-15)
    In late May of 2008, the NASA/JPL Phoenix spacecraft will touch down near its targeted landing site on Mars (68.2°N, 126.6°W). Entry, descent, and landing (EDL) occurs in the late afternoon (~1630 hours local solar time ...
  • A mesoscale model study of atmospheric circulations for the northern hemisphere summer on Mars 
    Tyler, Daniel Jr (2004-10-01)
    The Penn-State/NCAR MM5 mesoscale model was adapted for mesoscale simulations of the Martian atmosphere (the OSU MMM5). The NASA Ames Mars GCM provides initial and boundary conditions. High-resolution maps for albedo, ...
  • A mesoscale model study of summertime atmospheric circulations in the north polar region of Mars 
    Tyler, Daniel; Barnes, Jeffrey R. (American Geophysical Union, 2005-06-29)
    The Oregon State University Mars MM5 was used in a comprehensive high-resolution study of northern polar summertime circulations. Three simulations (Ls = 120, Ls = 135, and Ls = 150) characterize the changing circulation ...
  • Meteorological predictions for the Mars Pathfinder lander 
    Haberle, Robert M.; Barnes, Jeffrey R.; Murphy, James R.; Joshi, Manoj M.; Schaeffer, James (American Geophysical Union, 1997-06-25)
    The NASA Ames Mars general circulation and boundary layer models are used as guides to forecast the meteorological environment of the Pathfinder lander site. Based on these models we predict that for a Viking-like atmosp ...
  • Modeling of forced planetary waves in the Mars atmosphere 
    Hollingsworth, Jeffery L. (1992-06-05)
    Mariner 9 and Viking spacecraft observations during the 1970's have provided evidence for planetary-scale wave-like disturbances in the Mars atmosphere. It has been suggested that possible sources of the wave activity ...
  • Numerical simulations of nonlinear baroclinic instability with a spherical wave-mean flow model 
    Wang, Chunzai (1991-06-11)
    A global, multi-level, wave-mean flow model based on an approximate version of the primitive equations is developed to investigate the development of a baroclinic wave field initially confined to a single zonal wavenu ...
  • Overview of the mars pathfinder mission : launch through landing, surface operations, data sheets, and science results 
    Golombek, M. P.; Anderson, R. C.; Barnes, Jeffrey R.; Bell III, J. R.; Bridges, N. T.; Britt, D. T.; Brückner, J.; Cook, R. A.; Crisp, J. A.; Economou, T.; Folkner, W. M.; Greely, R.; Haberle, R. M.; Hargraves, R. B.; Harris, J. A.; Haldemann, A. F. C.; Herkenhoff, K. E.; Hviid, S. F.; Jaumann, R.; Johnson, J. R.; Kallemeyn, P. H.; Keller, H. U.; Kirk, R. L.; Knudsen, J. M.; Larsen, S.; Lemmon, M. T.; Madsen, M. B.; Magalhães, J. A.; Maki, J. N.; Malin, M. C.; Manning, R. M.; Matijevic, J.; McSween, H. Y.; Moore, H. J.; Murchie, S. L.; Murphy, J. R.; Parker, T. J.; Reider, R.; Rivellini, T. P.; Schofield, J. T.; Seiff, A.; Singer, R. B.; Smith, P. H.; Soderblom, L. A.; Spencer, D. A.; Stoker, C. R.; Sullivan, R.; Thomas, N.; Thurman, S. W.; Tomasko, M. G.; Vaughn, R. M.; Wänke, H.; Wilson, G. R. (American Geophysical Union, 1999-04-25)
    Mars Pathfinder successfully landed at Ares Vallis on July 4, 1997, deployed and navigated a small rover about l00 m clockwise around the lander, and collected data from three science instruments and ten technology exp ...
  • Real time quality control for hydrometeorological data 
    Kotwica, Kyle (1996-11-26)
    This thesis investigates the feasibility of implementing a real time quality control program into a data stream of hydrometeorlogical data. The vast array of data used in the forecasting of river levels and avalanches ...
  • A simplified three-dimensional model for Martian climate studies 
    Haberle, Robert M.; Houben, Howard; Barnes, Jeffrey R.; Vong, Richard E. (American Geophysical Union, 1997-04-25)
    We described a simplified physics approach to generating time-varying global wind and temperature fields suitable for conducting transport studies on Mars. The goal is to develop a computationally fast algorithm that wil ...
  • Transport timescales in the Martian atmosphere: General circulation model simulations 
    Barnes, Jeffrey R.; Walsh, Thomas D.; Murphy, James R. (American Geophysical Union, 1996-07-25)
    Simulations with a Mars general circulation model (GCM) are used to perform idealized tracer transport experiments, which are analyzed to yield estimates of eddy mixing coefficients as well as “stratospheric” ventilation ...

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