Search Results - "Haberle, R.M."

Simulations of the Atmospheres of Synchronously Rotating Terrestrial Planets Orbiting M Dwarfs: Conditions for Atmospheric Collapse and the Implications for Habitability by Joshi, M.M., Haberle, R.M., Reynolds, R.T.

“…Planets within the habitable zones of M dwarfs are likely to be synchronous rotators; in other words, one side is permanently illuminated while the other side…”
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Episodic Ocean-Induced CO2Greenhouse on Mars: Implications for Fluvial Valley Formation by Gulick, V.C., Tyler, D., McKay, C.P., Haberle, R.M.

“…Pulses of CO2injected into the martian atmosphere more recently than 4 Ga can place the atmosphere into a stable, higher pressure, warmer greenhouse state. One…”
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Mars-GRAM 2000: A Mars atmospheric model for engineering applications by Justus, C.G., James, B.F., Bougher, S.W., Bridger, A.F.C., Haberle, R.M., Murphy, J.R., Engel, S.

“…This paper presents Mars Global Reference Atmospheric Model 2000 Version (Mars-GRAM 2000) and its new features. All parameterizations for temperature,…”
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3D modelling of the early martian climate under a denser CO2 atmosphere: Temperatures and CO2 ice clouds by Forget, F., Wordsworth, R., Millour, E., Madeleine, J.-B., Kerber, L., Leconte, J., Marcq, E., Haberle, R.M.

“…► We present 3D simulations of the possible early Mars climate. ► We assume a faint young Sun and a thick CO2 atmosphere with CO2 clouds. ► We explore various…”
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MARCI-observed clouds in the Hellas Basin during northern hemisphere summer on Mars: Interpretation with the NASA/Ames Legacy Mars Global Climate Model by Kahre, M.A., Haberle, R.M., Hollingsworth, J.L., Wolff, M.J.

“…We present a study that is motivated by a population of water ice clouds in the Hellas Basin that has been observed by the MARs Color Imager (MARCI) instrument…”
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The NASA Ames legacy Mars global climate model: Radiation code error correction and new baseline water cycle simulation by Kahre, M.A., Haberle, R.M., Wilson, R.J., Urata, R.A., Steakley, K.E., Brecht, A.S., Bertrand, T., Kling, A., Batterson, C.M., Hartwick, V., Harman, C.E., Gkouvelis, L.

“…Haberle et al. (2019) documented the status of the NASA Ames Legacy Mars Global Climate Model (GCM) and presented a baseline water cycle simulation. Since…”
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Formation of Glaciers on Mars by Atmospheric Precipitation at High Obliquity by Forget, F., Haberle, R. M., Montmessin, F., Levrard, B., Head, J. W.

“…Surface conditions on Mars are currently cold and dry, with water ice unstable on the surface except near the poles. However, geologically recent glacierlike…”
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Dust storm impacts on the Mars upper atmosphere by Bougher, S.W., Murphy, J., Haberle, R.M.

“…Coupling between the Mars lower (≤80 km) and upper atmospheres is a fundamental issue affecting dynamics, tracer distributions, and energy balance. Also, this…”
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Coupling the Mars dust and water cycles: The importance of radiative-dynamic feedbacks during northern hemisphere summer by Kahre, M.A., Hollingsworth, J.L., Haberle, R.M., Wilson, R.J.

“…•Feedbacks between the dust and water cycles play a key role in Mars’ climate.•Feedbacks result in the redistribution of dust and increased polar warming.•The…”
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Summary of the Mars recent climate change workshop NASA/Ames Research Center, May 15–17, 2012 by Haberle, Robert M., Forget, Francois, Head, James, Kahre, Melinda A., Kreslavsky, Mikhail, Owen, Sandra J.

“…This note summarizes the results from the Mars recent climate change workshop at NASA/Ames Research Center, May 15–17, 2012…”
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The Mars Pathfinder Atmospheric Structure Investigation/Meteorology (ASI/MET) Experiment by Schofield, J. T., Barnes, J. R., Crisp, D., Haberle, R. M., Larsen, S., Magalhães, J. A., Murphy, J. R., Seiff, A., Wilson, G.

“…The Mars Pathfinder atmospheric structure investigation/meteorology (ASI/MET) experiment measured the vertical density, pressure, and temperature structure of…”
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Simulating the Martian dust cycle with a finite surface dust reservoir by Kahre, M. A., Murphy, J. R., Haberle, R. M., Montmessin, F., Schaeffer, J.

“…Multiple year General Circulation Model (GCM) simulations that include a finite surface dust reservoir and an infinite surface dust reservoir are compared…”
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Landing wind environment for future Mars landers by Haberle, R.M.

“…Mars has become a high priority science target for a number of spacefaring nations including the United States, Russia, Europe, and Japan. A major component of…”
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The science return of the pascal mars scout mission by Haberle, R.M.

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Seasonal variations of storm zones on Mars by Hollingsworth, J.L., Haberle, R.M., Schaeffer, J.

“…Using the NASA Ames Mars general circulation model, an annual cycle simulation has been performed corresponding to a low atmospheric dust loading. Surface…”
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Sensitivity of Martian Southern polar cap edge winds and surface stresses to dust optical thickness and to the large-scale sublimation flow by Siili, T., Haberle, R.M., Murphy, J.R.

“…Strong surface thermal contrasts of up to 90 K occur in the spring and early summer between the retreating seasonal polar caps and the adjacent ice-free…”
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The structure of the upper atmosphere of Mars: in situ accelerometer measurements from Mars Global Surveyor by Keating, G.M, Bougher, S.W, Zurek, R.W, Tolson, R.H, Cancro, G.J, Noll, S.N, Parker, J.S, Schellenberg, T.J, Shane, R.W, Wilkerson, B.L, Murphy, J.R, Hollingsworth, J.L, Haberle, R.M, Joshi, M, Pearl, J.C, Conrath, B.J, Smith, M.D, Clancy, R.T, Blanchard, R.C, Wilmoth, R.G, Rault, D.F, Martin, T.Z, Lyons, D.T, Esposito, P.B, Johnston, M.D, Whetzel, C.W, Justus, C.G, Babicke, J.M

“…The Mars Global Surveyor (MGS) z-axis accelerometer has obtained over 200 vertical structures of thermospheric density, temperature, and pressure, ranging from…”
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Meridional Transport and Water Reservoirs in Southern Mars during 1988-1989 by Rizk, B., Haberle, R.M., Hunten, D.M., Pollack, J.B.

“…Latitudinally resolved measurements of water-vapor column abundance in the martian atmosphere, obtained on four occasions in 1988-1989, are analyzed by a…”
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An affordable mission design for emplacement of a global network on Mars by Miller, D.D., Lozier, D.W., Haberle, R.M., Galal, K., Mitchell, S.J., Carlson, D.L.

“…Concept studies for the Pascal Mars Scout mission defined an economical approach for establishing a global network of small science stations on the surface of…”
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Evolution of the Martian water cycle by Houben, H., Haberle, R.M., Young, R.E., Zent, A.P.

“…The current Martian water cycle is extremely asymmetric, with large amounts of vapor subliming off a permanent north polar water ice cap in northern summer,…”
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