Christopher Lee

M. A. Mischna, V. Baker, R. Milliken, M. I. Richardson, C. Lee (2013). (pdf)

There is substantial geologic and geochemical evidence that points to an early Mars that was substantially warmer and wetter than at present. However, the mechanism by which the climate of Mars was maintained in this warm, we state remains elusive. We present here a review of work in that suggests an interaction between the orbital state of Mars, atmosphere water vapor and other trace gases, which serves as a possible mechanism past.

There have been a number of approaches to explaining how warm conditions (i.e. > 273 K) could be met on early Mars, randing form simple, thicker, CO2 atmospheres to more complex mixtures of increasingly exotic trace gases. Nearly all suffer from complications of one form or another than largely preclude the possibility of them achieving warm conditions, further augmented by the reduced solar luminosity of the young Sun (result in the so-called faint young Sun paradox).

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C. Lee, M. I. Richardson (AGU Fall Meeting 2013).

We use the DART Data Assimilation (DA) framework to ingest radiance observations from the Thermal Emission Spectrometer (TES) into the PlanetWRF Mars General Circulation Model (GCM) and measure the skill of the model in reproducing the observations, [Read more]

C. E. Newman, M. I. Richardson, Y. Lian, C. Lee (2013).

Titan has been inferred to have an active methane hydrological cycle, with convective clouds observed in the troposphere, high latitude lakes thought to be composed of methane and ethane, and evidence of past and recent rainfall at the [Read more]

M. A. Mischna, V. R. Baker, R. Milliken, M. I. Richardson, C. Lee (AGU Fall Meeting 2013).

We have explored possible mechanisms for the generation of warm, wet climates on early Mars as a result of greenhouse warming by both water vapor and periodic volcanic trace gas emissions, using the Mars Weather Research and Forecasting (MarsWRF) [Read more]

M. A. Mischna, V. Baker, R. Milliken, M. I. Richardson, C. Lee (2013). (10.1002/jgre.20054)

We explore possible mechanisms for the generation of warm, wet climates on early Mars as a result of greenhouse warming by both water vapor and periodic volcanic trace emissions. The presence of both water vapor (a strong greenhouse gas) and other [Read more]

C. Lee, M. I. Richardson, M. A. Mischna, Y. Lian, C. E. Newman (2012).

The latest version of the Ashima VenusFMS General Circulation Model (GCM) includes realistic solar and infra-red radiation, topography, and consistent treatment of temperature-dependent heat capacity throughout the GCM. Simulations using this GCM [Read more]

C. Lee and M. I. Richardson (2012). (10.1016/j.icarus.2012.10.007) (pdf)

Angular Momentum (AM) conservation and transport are critical components of all General Circulation Model (GCM) simulations, and particularly for simulations of the Venus atmosphere. We show that a Venus GCM based upon the Geophysical Fluid Dynamics [Read more]

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Christopher Lee

Reviewed and Recommended by Erik Baquero