Finescale Planktonic Vertical Structure: Horizontal Extent and the Controlling Physical Processes

2009 ◽  
Author(s):  
Timothy J. Cowles
Keyword(s):  
Vertical Structure ◽  
Physical Processes ◽  
Horizontal Extent

scholarly journals Vertical structure and physical processes of the Madden-Julian oscillation: Exploring key model physics in climate simulations

2015 ◽  
Vol 120 (10) ◽  
pp. 4718-4748 ◽  
Author(s):  
Xianan Jiang ◽  
Duane E. Waliser ◽  
Prince K. Xavier ◽  
Jon Petch ◽  
Nicholas P. Klingaman ◽  
...  
Keyword(s):  
Vertical Structure ◽  
Madden Julian Oscillation ◽  
Physical Processes ◽  
Climate Simulations

scholarly journals Vertical structure and physical processes of the Madden-Julian Oscillation: Biases and uncertainties at short range

2015 ◽  
Vol 120 (10) ◽  
pp. 4749-4763 ◽  
Author(s):  
Prince K. Xavier ◽  
Jon C. Petch ◽  
Nicholas P. Klingaman ◽  
Steve J. Woolnough ◽  
Xianan Jiang ◽  
...  
Keyword(s):  
Short Range ◽  
Vertical Structure ◽  
Madden Julian Oscillation ◽  
Physical Processes

scholarly journals Vertical structure and physical processes of the Madden-Julian oscillation: Synthesis and summary

2015 ◽  
Vol 120 (10) ◽  
pp. 4671-4689 ◽  
Author(s):  
Nicholas P. Klingaman ◽  
Xianan Jiang ◽  
Prince K. Xavier ◽  
Jon Petch ◽  
Duane Waliser ◽  
...  
Keyword(s):  
Vertical Structure ◽  
Madden Julian Oscillation ◽  
Physical Processes

scholarly journals Vertical structure and physical processes of the Madden-Julian oscillation: Linking hindcast fidelity to simulated diabatic heating and moistening

2015 ◽  
Vol 120 (10) ◽  
pp. 4690-4717 ◽  
Author(s):  
Nicholas P. Klingaman ◽  
Steven J. Woolnough ◽  
Xianan Jiang ◽  
Duane Waliser ◽  
Prince K. Xavier ◽  
...  
Keyword(s):  
Vertical Structure ◽  
Diabatic Heating ◽  
Madden Julian Oscillation ◽  
Physical Processes

scholarly journals An idealized physical model for the severe convective storm environmental sounding

2020 ◽  
Author(s):  
Daniel R. Chavas ◽  
Daniel T. Dawson
Keyword(s):  
Vertical Structure ◽  
Potential Utility ◽  
Convective Storm ◽  
Physical Processes ◽  
Simulation Experiments ◽  
Convective Storms ◽  
Independent Variation ◽  
Static Energy ◽  
Capping Inversion

AbstractThis work develops a theoretical model for steady thermodynamic and kinematic profiles for severe convective storm environments, building off of the two-layer static energy framework developed in Agard and Emanuel (2017). The model is phrased in terms of static energy, and it allows for independent variation of the boundary layer and free troposphere separated by a capping inversion. An algorithm is presented to apply the model to generate a sounding for numerical simulations of severe convective storms, and the model is compared and contrasted with that of Weisman and Klemp. The model is then fit to a case-study sounding associated with the 3 May 1999 tornado outbreak, and its potential utility is demonstrated via idealized numerical simulation experiments. A long-lived supercell is successfully simulated with the historical sounding but not the analogous theoretical sounding. Two types of example experiments are then performed that do simulate a long-lived supercell: 1) a semi-theoretical experiment in which a portion of the theoretical sounding is modified to match the real sounding (low-level moisture); 2) a fully-theoretical experiment in which a model physical parameter is modified (free-tropospheric relative humidity). Overall, the construction of this minimal model is flexible and amenable to additional modifications as needed. The model offers a novel framework that may be useful for testing how severe convective storms depend on the vertical structure of the hydrostatic environment, as well as for linking variability in these environments to the physical processes that produce them within the climate system.

scholarly journals Can a global model chemical mechanism reproduce NO, NO<sub>2</sub>, and O<sub>3</sub> measurements above a tropical rainforest?

2009 ◽  
Vol 9 (6) ◽  
pp. 27611-27648 ◽  
Author(s):  
R. C. Pike ◽  
J. D. Lee ◽  
P. J. Young ◽  
S. Moller ◽  
G. D. Carver ◽  
...  
Keyword(s):  
Vertical Structure ◽  
Tropical Rainforest ◽  
Global Model ◽  
Time Dependent ◽  
Box Model ◽  
Chemical Mechanism ◽  
Free Troposphere ◽  
Physical Processes ◽  
Cross Platform ◽  
Malaysian Borneo

Abstract. A cross-platform field campaign, OP3, was conducted in the state of Sabah in Malaysian Borneo between April and July of 2008. Among the suite of observations recorded, the campaign included measurements of NOx and O3–crucial outputs of any model chemistry mechanism. We describe the measurements of these species made from both the ground site and aircraft. We examine the output from the global model p-TOMCAT at two resolutions for this location during the April campaign period. The models exhibit reasonable ability in capturing the NOx diurnal cycle, but ozone is overestimated. We use a box model containing the same chemical mechanism to explore the weaknesses in the global model and the ability of the simplified global model chemical mechanism to capture the chemistry at the rainforest site. We achieve a good fit to the data for all three species (NO, NO2, and O3), though the model is much more sensitive to changes in the treatment of physical processes than to changes in the chemical mechanism. Indeed, without some parameterization of the nighttime boundary layer-free troposphere mixing, a time dependent box model will not reproduce the observations. The final simulation uses this mixing parameterization for NO and NO2 but not O3, as determined by the vertical structure of each species, and matches the measurements well.

Models of Thermodynamic Properties of Prominences

1979 ◽  
Vol 44 ◽  
pp. 349-355
Author(s):  
R.W. Milkey
Keyword(s):  
Thermodynamic Properties ◽  
Mass Transport ◽  
Emission Spectrum ◽  
Thermodynamic Parameters ◽  
Working Group ◽  
Physical Processes ◽  
Theoretical Concepts ◽  
Group 3 ◽  
Observational Techniques

The focus of discussion in Working Group 3 was on the Thermodynamic Properties as determined spectroscopically, including the observational techniques and the theoretical modeling of physical processes responsible for the emission spectrum. Recent advances in observational techniques and theoretical concepts make this discussion particularly timely. It is wise to remember that the determination of thermodynamic parameters is not an end in itself and that these are interesting chiefly for what they can tell us about the energetics and mass transport in prominences.

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