Inshore Frontal Features of the California Current

Slides:

Advertisements

Similar presentations

Chapter 4. Atmospheric Pressure and Wind

Advertisements

Air Pressure and Winds III

Chapter 6 Section 6.4 Goals: Look at vertical distribution of geostrophic wind. Identify thermal advection, and backing and veering winds. Look at an example.

C. A. Collins 1, R. Castro Valdez 2, A.S. Mascarenhas 2, and T. Margolina 1 Correspondence: Curtis A. Collins, Department of Oceanography, Naval Postgraduate.

Horizontal Pressure Gradients Pressure changes provide the push that drive ocean currents Balance between pressure & Coriolis forces gives us geostrophic.

Current. Moving Charge  A charge in an electric field is subject to a force. Acceleration  Positive charges move with the field.  Negative charges.

Horizontal Pressure Gradients Pressure changes provide the push that drive ocean currents Balance between pressure & Coriolis forces gives us geostrophic.

Ocean Gyres - combine knowledge of global winds and Ekman flow - surface transport can be determined from wind direction/velocity - surface transport alters.

Weather Patterns Chapter I. Changes in Weather A. Air Masses 1. An air mass is … … a large body of air that has the same … a large body of air that.

Generalized Surface Circulation

Atmospheric Circulation

Temperature, pressure, and winds. Review of last lecture Earth’s energy balance at the top of the atmosphere and at the surface. What percentage of solar.

Lessons 22,23,24 Upper Level Winds

The General Circulation of the Atmosphere Background and Theory.

Hans Burchard Leibniz Institute for Baltic Sea Research Warnemünde Coastal Ocean Dynamics First course: Hydrodynamics.

Structure and dynamical characteristics of mid-latitude fronts.

What set the atmosphere in motion?. Review of last lecture Thickness of the atmosphere: less than 2% of Earth’s thickness Thickness of the atmosphere:

Planetary Atmospheres, the Environment and Life (ExCos2Y) Topic 6: Wind Chris Parkes Rm 455 Kelvin Building.

Historically the First Fluid Flow Solution …. P M V Subbarao Professor Mechanical Engineering Department I I T Delhi Second Class of Simple Flows.

Physical Oceanography SACS/AAPT Spring Meeting March 29, 2003 Coastal Carolina University.

WOCE hydrographic Atlas, 1 As a result of the World Ocean Circulation Experiment (WOCE), a hydrographic survey of the world oceans occurred from

FLUID ROTATION Circulation and Vorticity. Arbitrary blob of fluid rotating in a horizontal plane Circulation: A measure of the rotation within a finite.

What set the atmosphere in motion?

An example of vertical profiles of temperature, salinity and density.

Section 8 Vertical Circulation at Fronts

Ekman pumping Integrating the continuity equation through the layer:. Assume and let, we have is transport into or out of the bottom of the Ekman layer.

Geopotential and isobaric surfaces

Class 8. Oceans Figure: Ocean Depth (mean = 3.7 km)

Introductory Physical Oceanography (MAR 555) - Fall 2009

OCN 5401 Chapter 1 Overview Instructor: Dr. George A. Maul / X 7453.

Ocean Dynamics Previous Lectures So far we have discussed the equations of motion ignoring the role of friction In order to understand ocean circulations.

Basic dynamics ●The equations of motion and continuity Scaling Hydrostatic relation Boussinesq approximation ●Geostrophic balance in ocean’s interior.

 p and  surfaces are parallel =>  =  (p) Given a barotropic and hydrostatic conditions, is geostrophic current. For a barotropic flow, we have and.

Thermodynamics System Surroundings - + Thermo = dynamics = heat or energy movement.

Density Density- mass per unit volume D = m/v Specific gravity- refers to the density of a dimensionless substance.

Forces and accelerations in a fluid: (a) acceleration, (b) advection, (c) pressure gradient force, (d) gravity, and (e) acceleration associated with viscosity.

Boundary Currents - combine knowledge of global winds and Ekman flow - surface transport can be determined from wind direction/velocity - surface transport.

For a barotropic flow, we have is geostrophic current.

HEAT EXCHANGER DESIGNPROJECT ME 414 Thermal Fluid System Design

Air Masses and fronts An air mass is a large body of air that has similar temperature and moisture properties throughout. A front is defined as the transition.

At the Bell: Pick up a worksheet at the front of class

For a barotropic flow, we have is geostrophic current.

Weather Maps Isotherms and Isobars.

Across Channel Momentum Balance

Jupiter and Saturn Chapter 12.

TRANSPORT PROPERTIES Ch 30 Quantity Gradiant Laws Temperature Heat HOT

Kinetic-Molecular Theory

Oceans and Climate Review

21-1 Ocean Currents.

Ocean Currents Chapter 16.1.

How to Calculate the Geostrophic Wind Using ‘Real’ Data

Ocean Circulation Currents and Causes.

Summer 04 vs Winter 06 LT Boyd.

Combination of oceanographic data with wind data acquired during the cruise to try to draw conclusions on wind stress, Ekman transport and Ekman layer.

Warm-up What is ocean water made of?

Equation of State (EOS-80)

HYDROGRAPHY OF THE NAVO CENCAL REGION FOR DEC01

LT Ricardo Roman OC3570 March 7, 2006

2008 vs Winter Conditions in the Monterey Bay

The California Current System: Comparison of Geostrophic Currents, ADCP Currents and Satellite Altimetry LCDR David Neander, NOAA OC3570, Summer 2001.

Turbidity in Monterey Bay: Operational Oceanography Winter 2009 Project Rip Coke 16MAR09.

Focus on One of the Blue Circles

Operational Oceanography and Meteorolgy

ADCP Referenced Geostrophic Velocities and Transport Part II: Along-Shore LT Eric Macdonald Line 85.

Unit: Water and the Atmosphere

An Analysis of San Clemente Basin: Crosshore vs. Alongshore

ENS Alicia A. Washkevich, USN

Ocean Currents Chapter 16.1.

Density Mass per unit volume.

Ocean Currents.

Presentation transcript:

Inshore Frontal Features of the California Current By Travis Clem, LT, USN With contributions from Professor Curtis Collins and Tarry Rago

Definition of an Ocean Front A line where two water masses of differing properties meet, where: Salinity, pressure, and temperature change rapidly over a horizontal distance. Or a tightening of the gradient for these properties. Flow direction changes.

Salinity

Salinity

Salinity

Dynamic Height

Mean Flow Flow binned over every 0.1 degrees.

Salinity Contour 1

Salinity Contour 2

Temp Contour

Density Contour

Density Contour Close Up

Temp Contour Close Up

Sound Velocity Contour

Averaged Geostrophic Velocity

Along-Front Velocity (N/S) (Rotated 30 deg) Rotated view

Across-Front Velocity (E/W) (Rotated 30 deg) Rotated view

Fluorometer Data Contour

Transmissivity Contour

Mean Flow Second String

Salinity Contour

Temperature Contour Degrees Celsius

Temp Contour Close Up

Density Contour

Sound Velocity Contour

Averaged Geostrophic Velocity

Along-Front Velocity (N/S) (Rotated 30 deg)

Across-Front Velocity (E/W) (Rotated 30 deg)

Fluorometer Data Contour

Fluorometer Data Close Up

Transmissivity Contour

Transmissivity Contour Close Up

Mean Flow Third String

Salinity Contour

Temperature Contour Degrees Celsius

Temp Contour Close Up

Density Contour

Sound Velocity Contour

Averaged Geostrophic Velocity

Along-Front Velocity (N/S)

Along-Front Velocity (N/S) (Rotated 30 deg)

Across-Front Velocity (E/W)

Across-Front Velocity (E/W) (Rotated 30 deg)

Fluorometer Data Contour

Fluorometer Data Close Up

Transmissivity Contour

Transmissivity Contour Close Up

(a) (b) (c) (d)