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

Slides:

Advertisements

Similar presentations

Reanalysis of the Iceland-Faroe inflow Bogi Hansen, Karin Margretha H. Larsen, Hjálmar Hátún and Svein Østerhus NACLIM CT2, Hamburg, January 2015.

Advertisements

Turbulent Mixing During an Admiralty Inlet Bottom Water Intrusion Philip Orton Hats off to the A-Team: Sally, Erin, Karin and Christie! Profs extraordinaire:

Groom-gliders Trieste data-management meeting Trieste, June 2013 T&S real-time QC n 1. Platform identification : valid wmo ID n 2. Impossible date test.

First Analysis of the Nares Strait CT-String Data Berit Rabe & Helen Johnson.

1 Evaluation of two global HYCOM 1/12º hindcasts in the Mediterranean Sea Cedric Sommen 1 In collaboration with Alexandra Bozec 2 and Eric Chassignet 2.

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.

1 4 th International Symposium on Flood Defence: Managing Flood Risk, Reliability and Vulnerability, Toronto, Ontario, Canada, May 6-8, 2008 J. Chen, J.

The Faroe Current: T-S properties and volume, heat and salt transports Karin Margretha H. Larsen Bogi Hansen, Hjálmar Hátún, Svein Østerhus Extended Ellett.

Generalized Surface Circulation

Section 7: Conducting Surveys along the Texas Coast.

Quality Control Standards for SeaDataNet Review status at 1 st Annual Meeting (March 2007) Review developments over last year Current status Future work.

PAX VOBIS PAX VOBIS PAX VOBIS PAX VOBIS PAX VOBIS PAX VOBIS PAX VOBIS PAX VOBIS PAX VOBIS PAX VOBIS PAX VOBIS PAX VOBIS PAX VOBIS PAX VOBISPAX VOBISPAX.

Reanalysis of the Iceland-Faroe inflow Bogi Hansen, Karin Margretha H. Larsen, Hjálmar Hátún and Svein Østerhus ICES WGOH, San Sebastian, March 2015.

AGU, 2003 Greenland Iceland Shet- land Faroes image:AGU 2003 Cost ‐ efficient monitoring of the main Atlantis inflow to the Arctic Mediterranean B. Hansen,

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

MMS - Ozonesonde Wind and Temperature Comparison during CR-AVE T.P. Bui, J. Dean-Day, C. Chang, R. Castaneda NASA-Ames Research Center H. Voemel University.

REMUS AUV Jennifer Patterson HIOOS Workshop June 23, 2009.

Monitoring Heat Transport Changes using Expendable Bathythermographs Molly Baringer and Silvia Garzoli NOAA, AOML What are time/space scales of climate.

Institute of Oceanology PAS In the Arctic Jan Piechura Arctic GOOS Planning Meeting NERSC, Bergen Sep

Isolines: contour lines on an elevation map Isotherms: contour lines on a temperature map Isobars: contour lines on an air pressure.

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

Analysis of OTC Modeling Base RAMMPP Modeling Team Review of Application and Assessment of CMAQ in OTR November 16, 2005 Outline Scatterplots of model-calculated.

12.808, Problem 1, problem set #2 This is a 3 part question dealing with the wind-driven circulation. At 26 o N in the N. Atlantic, the average wind stress.

Geopotential and isobaric surfaces

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

Geostrophy, Vorticity, and Sverdrup

LOWEST POSSIBLE ELEVATION WHAT IS THE LOWEST POSSIBLE ELEVATION? POSSIBLE ELEVATION? North South West East.

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

Demonstration and Comparison of Sequential Approaches for Altimeter Data Assimilation in HYCOM A. Srinivasan, E. P. Chassignet, O. M. Smedstad, C. Thacker,

Figure 1: Locations of CTD (triangles) and XBT (squares) stations occupied during February Numbers represent CTD stations. A schematic of the surface.

Variation of the Kuroshio in the East China Sea Magdalena Andres Ocean Sciences OS 54B-05 February 24, 2006.

Modelling activities at Institute of Oceanography and Fisheries (IOF), Split within ADRICOSM-EXT project Gordana Beg Paklar Institute of Oceanography and.

I. Objectives and Methodology DETERMINATION OF CIRCULATION IN NORTH ATLANTIC BY INVERSION OF ARGO FLOAT DATA Carole GRIT, Herlé Mercier The methodology.

Increased oceanic heat transport in the main Atlantic inflow branch to the Nordic Seas Bogi Hansen, Karin Margretha H. Larsen Hjálmar Hátún,

The Bering Slope Current System Revisited Gregory C

WESTERN AND EASTERN BOUNDARY CURRENTS

Comparisons of Argo profiles and nearby high resolution CTD stations

Janelle Reynolds-Fleming and Rick Luettich

ATOC 4720 class31 1. Coordinate systems 2. Forces.

Scale: Kilometers.

Apr-Jun Jan-Mar Jul-Sep Oct-Dec

ECOLOGY OF THE SEASHORE

Manned Boat ADCP Deployment

Section 10.2: Fitting a Linear Model to Data

How to Calculate the Geostrophic Wind Using ‘Real’ Data

Inshore Frontal Features of the California Current

presented by LCDR Allon Turek, USN 14 March 2008

Geostrophic and thermal wind

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

Operational Oceanography Cruise February 2003

Characterization of Sound Speed Profiles

HYDROGRAPHY OF THE NAVO CENCAL REGION FOR DEC01

GEOSTROPHIC, EKMAN & ADCP VOLUME TRANSPORT

LT Ricardo Roman OC3570 March 7, 2006

Comparison of CTD/XBT Temperature Profiles and XBT/GDEM Sound Speed Profiles LT Annie Laird 08 March 2006.

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

Validating NAVO’s Navy Coastal Ocean Model

Comparison of Computed Geostropic Currents and ADCP

Operational Oceanography and Meteorolgy

What are we seeing in the surface currents?

Scale: Kilometers.

Circulation in the atmosphere

LT Anna C. (Christy) Bryant

P6314 / ENGI 9098 : Field Oceanography Cruise Report

An Analysis of San Clemente Basin: Crosshore vs. Alongshore

Peering through Jupiter’s clouds with radio spectral imaging

Supervisor: Eric Chassignet

CTD RELATIVE GEOSTROPHIC VELOCITY VS. ADCP VELOCITY

Event, March 19-24th 2013 Pressure.

ADCP-Corrected Absolute Geostrophic Current and Transport

Presentation transcript:

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

Goals Calculate transport across a CTD transect Calculate geostrophic current from CTD temperature and salinity profiles between stations. Compare that geostrophic velocity to ADCP measured currents at a specified level. Use the difference between these two velocity measurements as an adjustment to the geostrophic velocity. Apply that adjustment to the entire geostrophic velocity field. Use the adjusted geostrophic velocity field to calculate transport across the CTD transect.

Geostrophic Velocity Calculated using a geopotential anomoly from CTD salinity, temperature, and pressure measurements 202 dbar

ADCP Measured Currents 30o u v

Comparison of ADCP Measured Velocity and Geostrophic Velocity

Comparison of ADCP Measured Currents and Geostrophic Currents VAdj = VObs – VGeo 180 dbar 202 dbar VObs = 1.75 VGeo = 3.10 VAdj = -1.35

Comparison of Geostrophic Velocity and Adjusted Geostrophic Velocity

Comparison of Geostrophic Transport and Adjusted Geostrophic Transport

Horizontally Summed Transport and Averaged Velocity

Comparison of ADCP Calculated Transport and Adjusted Geostrophic Transport

Comparison of ADCP Calculated Transport and Adjusted Geostrophic Transport

Things to think about (possible sources for error): What might be the error caused by the different units in z? Due to horizontal variability of the velocity, would this result be more accurate if a different adjustment were made between each of the CTD casts? Should the ADCP data be interpolated onto the same latitude and longitude of the CTD casts?

Questions?