'Geostrophic balance' diaporamas de présentation

AOSS 321, Winter 2009 Earth System Dynamics Lecture 9 2/5/2009

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Atmospheric Force Balances

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Atmospheric Moisture and Stability

Atmospheric Moisture and Stability. Lecture 7 October 21, 2009. Homework #2 Comments. Winds are nearly geostrophic in the upper levels of the atmosphere because there is less friction. . Homework #2 Comments.

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General Circulation of the Atmosphere

General Circulation of the Atmosphere. Lisa Goddard. 19 September 2006. Main Points. * Atmosphere wants to attain balance - Circulation results from the atmosphere adjusting to remove imposed imbalances

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Dynamic Meteorology: A Review

Dynamic Meteorology: A Review. Total Vs. Partial Derivatives. Total Derivatives The rate of change of something following a fluid element is called the Lagrangian rate of change Example: How temperature changes following an air parcel as is moves around Partial Derivatives

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Long Waves in Ocean Circulation

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ATMS 316- Mesoscale Meteorology

ATMS 316- Mesoscale Meteorology. Packet#2 How do we quantify the potential for a mesoscale event to occur?. http://www.ucar.edu/communications/factsheets/Tornadoes.html. ATMS 316- Mesoscale Meteorology. Outline Background Synoptic scale analysis Mesoscale analysis? Scaling Parameters.

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Satellites for Meteorology and Weather Forecasting

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Vertical Cyclone Structure AOS 101 - Section 302 Ross A. Lazear May 1, 2007

Vertical Cyclone Structure AOS 101 - Section 302 Ross A. Lazear May 1, 2007. Review. We know that the winds converge at a surface low pressure center and diverge from a surface high pressure center (this is because of the frictional force at the surface)

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Balance in the EnKF

Balance in the EnKF. Jeffrey D. Kepert Centre for Australian Weather and Climate Research A partnership between the Australian Bureau of Meteorology and CSIRO WWRP/Thorpex Workshop on 4D-Var and EnKF Intercomparisons 10-13 November, 2008. EnKF and Slow Manifold.

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Importance of Rotation to Ocean Currents: Geostrophy

Importance of Rotation to Ocean Currents: Geostrophy. Lecture 11. OEAS-604. October 31, 2011. Outline: Review of Scaling Inertial Oscillations Geostrophic Balance Thermal Wind. Reynolds averaged X-momentum Equation:. Scaled form of X-momentum:.

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Atmospheric pressure and winds

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Lab 3

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Across Channel Momentum Balance

h 1. z. LNM. h 2. y. Across Channel Momentum Balance. Geostrophic balance (frictionless, steady and linear motion) in the lower layer. h. h 1. LNM. h 2. z. y. Geostrophic Balance in the upper layer. Geostrophic Balance in the lower layer:. h. h 1. LNM. h 2. z. y.

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EOSC 112: THE FLUID EARTH

EOSC 112: THE FLUID EARTH. Atm3 Read: Kump et al. Chap.4, p. 61-68 Why do weather / climate vary around the globe? Why is the response to a global climate perturbation not necessarily uniform around the globe? Objectives: To explain the Coriolis effect; T o describe Geostrophic balance ;

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EVAT 554 OCEAN-ATMOSPHERE DYNAMICS

EVAT 554 OCEAN-ATMOSPHERE DYNAMICS. FILTERING OF EQUATIONS FOR ATMOSPHERE (CONT). LECTURE 6. (Reference: Peixoto & Oort, Chapter 3). Meridional Momentum Balance:. Length scale: L ?10 6 m, l?10 2 m Depth scale: H?10 4 m, h ?10 2 m Horizontal velocity scale: u,v ?10 ms -1

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Geostrophic Currents

Geostrophic Currents. Lecture 12. OEAS-604. November 2, 2011. Outline: In-class Exercise Review of Baroclinic and Barotropic P.G.s Review of Geostrophic Balance Calculating Geostrophic Velocities Homework #3. ? = 0.01 m. z = 0. ? t = 26. ? t = 26.5. ? t = 27. ? t = 27.5.

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Advanced data-assimilation methods for satellite observations

Advanced data-assimilation methods for satellite observations. Data-Assimilation Research Centre DARC University of Reading ESA Advanced Data Assimilation project July 2012. Overview. Task 1: Data-assimilation methods for nonlinear non-Gaussian and multi-scale problems

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ATS/ESS 452: Synoptic Meteorology Wednesday 09/10/2014

ATS/ESS 452: Synoptic Meteorology Wednesday 09/10/2014. Quiz! (Short?) Weather Discussion Continue Review Material Geostrophic Wind Continuity Vorticity. Synoptic Scale Governing Equations. Frames of reference:

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