Presentation is loading. Please wait.

Presentation is loading. Please wait.

HWU I3S IST TMS MUMM Nice, 17-18 December 2001 Underwater Robotics for Ocean Modelling and Monitoring Added value brought by AUV’s in the surveillance.

Published by Modified over 9 years ago

Similar presentations

Presentation on theme: "HWU I3S IST TMS MUMM Nice, 17-18 December 2001 Underwater Robotics for Ocean Modelling and Monitoring Added value brought by AUV’s in the surveillance."— Presentation transcript:

1 HWU I3S IST TMS MUMM Nice, 17-18 December 2001 Underwater Robotics for Ocean Modelling and Monitoring Added value brought by AUV’s in the surveillance of exploited marine sand banks G.Pichot, A.Norro, J.Ozer MUMM

2 HWU I3S IST TMS MUMM Nice, 17-18 December 2001 Underwater Robotics for Ocean Modelling and Monitoring Sources of error

3 HWU I3S IST TMS MUMM Nice, 17-18 December 2001 Underwater Robotics for Ocean Modelling and Monitoring International Hydrographic Norms In coastal areas for 20 meters depth - horizontal accuracy : 6 meters - depth accuracy : 0.564 meters

4 HWU I3S IST TMS MUMM Nice, 17-18 December 2001 Underwater Robotics for Ocean Modelling and Monitoring The tidal reduction problem H = H mes. - H T.

5 HWU I3S IST TMS MUMM Nice, 17-18 December 2001 Underwater Robotics for Ocean Modelling and Monitoring Transects over the Kwintebank (provided by MUMM) rG19 - rH01 meters centimeters

6 HWU I3S IST TMS MUMM Nice, 17-18 December 2001 Underwater Robotics for Ocean Modelling and Monitoring The I3S approach -Shape of the bank is stable -Profiles are re-aligned wrt first profile -A constant offset (vertical) and a constant horizontal shift are determined -Criteria : minimisation of the distance wrt first profile

7 HWU I3S IST TMS MUMM Nice, 17-18 December 2001 Underwater Robotics for Ocean Modelling and Monitoring Alignment correction : histogram of the observed vertical offset Compatible with the systematic part of the error budget

8 HWU I3S IST TMS MUMM Nice, 17-18 December 2001 Underwater Robotics for Ocean Modelling and Monitoring Deviation wrt the mean profile (rG19) Error max  100 cm compatible with the random part of the error budget -100 -50 0 50 100 (cm)

9 HWU I3S IST TMS MUMM Nice, 17-18 December 2001 Underwater Robotics for Ocean Modelling and Monitoring rG21 error max  250 cm rH01 error max  150 cm MUMM’s random error budget explains only 100 cm 200 100 0 100 200 Deviation wrt the mean profile (rG21 and rH01) -200 -100 0 100 200 (cm) 150 100 50 0 50 100 150 (cm)

10 HWU I3S IST TMS MUMM Nice, 17-18 December 2001 Underwater Robotics for Ocean Modelling and Monitoring Volume consideration Should a part of the volume variation be extracted from a trend in the alignement ?

11 HWU I3S IST TMS MUMM Nice, 17-18 December 2001 Underwater Robotics for Ocean Modelling and Monitoring Do we need a tidal reduction ?

12 HWU I3S IST TMS MUMM Nice, 17-18 December 2001 Underwater Robotics for Ocean Modelling and Monitoring Offset with non tidally reduced data

13 HWU I3S IST TMS MUMM Nice, 17-18 December 2001 Underwater Robotics for Ocean Modelling and Monitoring Conclusion With non tidally reduced data Win one third of the systematic error  Increased offset making the trend identification more difficult  Interest to compare or to combine the two approaches

14 HWU I3S IST TMS MUMM Nice, 17-18 December 2001 Underwater Robotics for Ocean Modelling and Monitoring Need more data Conclusion(2)

Download ppt "HWU I3S IST TMS MUMM Nice, 17-18 December 2001 Underwater Robotics for Ocean Modelling and Monitoring Added value brought by AUV’s in the surveillance."

Similar presentations

GMES Marine Service MY OCEAN 5th GEO European projects Workshop Frédéric ADRAGNA MyOcean Project Manager London – 8/9 February 2011.

GMES Marine Service MY OCEAN 5th GEO European projects Workshop Frédéric ADRAGNA MyOcean Project Manager London – 8/9 February 2011.
DATA & STATISTICS 101 Presented by Stu Nagourney NJDEP, OQA.

DATA & STATISTICS 101 Presented by Stu Nagourney NJDEP, OQA.
Section 2.5 Transformations of Functions. Overview In this section we study how certain transformations of a function affect its graph. We will specifically.

Section 2.5 Transformations of Functions. Overview In this section we study how certain transformations of a function affect its graph. We will specifically.
Adapting Ocean Surveys to the Observed Fields Characteristics Maria-João Rendas I3S, CNRS-UNSA.

Adapting Ocean Surveys to the Observed Fields Characteristics Maria-João Rendas I3S, CNRS-UNSA.
Seasonal Position Variations and Regional Reference Frame Realization Jeff Freymueller Geophysical Institute University of Alaska Fairbanks.

Seasonal Position Variations and Regional Reference Frame Realization Jeff Freymueller Geophysical Institute University of Alaska Fairbanks.
1 Chapter 9. Section 9-4. Triola, Elementary Statistics, Eighth Edition. Copyright 2001. Addison Wesley Longman C.M. Pascual S TATISTICS Section 9c Variation.

1 Chapter 9. Section 9-4. Triola, Elementary Statistics, Eighth Edition. Copyright Addison Wesley Longman C.M. Pascual S TATISTICS Section 9c Variation.
TIDES. Tides The periodic short term changes in the height (rise or fall) of the ocean surface at a particular place Caused by a combination of –Distance.

TIDES. Tides The periodic short term changes in the height (rise or fall) of the ocean surface at a particular place Caused by a combination of –Distance.
T18-03 - 1 T18-03 Exponential Smoothing Forecast Purpose Allows the analyst to create and analyze the Exponential Smoothing Average forecast. The MAD.

T T18-03 Exponential Smoothing Forecast Purpose Allows the analyst to create and analyze the "Exponential Smoothing Average" forecast. The MAD.
1 Long-term Variation of the Magnet Alignment In SPring-8 Storage Ring Main events of magnet alignment Long-term monitoring Variation of magnet alignment.

1 Long-term Variation of the Magnet Alignment In SPring-8 Storage Ring Main events of magnet alignment Long-term monitoring Variation of magnet alignment.
1 Malcolm Thomson International Centre for Island Technology Heriot Watt University(Orkney Campus) Old Academy Stromness Orkney Scotland, UK SUMARE Workshop:

1 Malcolm Thomson International Centre for Island Technology Heriot Watt University(Orkney Campus) Old Academy Stromness Orkney Scotland, UK SUMARE Workshop:
Introduction to experimental errors

Introduction to experimental errors
Qwizdom Review Questions Week 2. Example Exam Question, p.18 A new method of measuring phosphorus levels in soil is under consideration. A sample of 11.

Qwizdom Review Questions Week 2. Example Exam Question, p.18 A new method of measuring phosphorus levels in soil is under consideration. A sample of 11.
Analytical and Numerical Modelling of Surface Displacements due to Volcanism Olivia Lewis Supervised by Prof. Jurgen Neuberg School of Earth and Environment.

Analytical and Numerical Modelling of Surface Displacements due to Volcanism Olivia Lewis Supervised by Prof. Jurgen Neuberg School of Earth and Environment.
GEODETIC CONTROL SURVEYS

GEODETIC CONTROL SURVEYS
13.02.2008 Warsaw University LiCAS Linear Collider Alignment & Survey IWAA08, G. Moss 1 The LiCAS LSM System First measurements from the Laser Straightness.

Warsaw University LiCAS Linear Collider Alignment & Survey IWAA08, G. Moss 1 The LiCAS LSM System First measurements from the Laser Straightness.
I3S - Sophia Antipolis 17-18 December 2001. Presentations 17th December G. Pichot – Coordinator - Mumm – Belgium ‘The sumare project’clicclic G. Pichot.

I3S - Sophia Antipolis December Presentations 17th December G. Pichot – Coordinator - Mumm – Belgium ‘The sumare project’clicclic G. Pichot.
Harry Williams, Cartography1 Surveying Techniques I. The USGS supplies 1:24,000 scale maps for all the U.S. But detailed topography at larger scales is.

Harry Williams, Cartography1 Surveying Techniques I. The USGS supplies 1:24,000 scale maps for all the U.S. But detailed topography at larger scales is.
Monitoring the Global Sea Level Rise Budget with Jason, Argo and GRACE Observations Eric Leuliette and Laury Miller NOAA/Laboratory for Satellite Altimetry.

Monitoring the Global Sea Level Rise Budget with Jason, Argo and GRACE Observations Eric Leuliette and Laury Miller NOAA/Laboratory for Satellite Altimetry.
1 REAL-TIME IMAGE PROCESSING APPROACH TO MEASURE TRAFFIC QUEUE PARAMETERS. M. Fathy and M.Y. Siyal Conference 1995: Image Processing And Its Applications.

1 REAL-TIME IMAGE PROCESSING APPROACH TO MEASURE TRAFFIC QUEUE PARAMETERS. M. Fathy and M.Y. Siyal Conference 1995: Image Processing And Its Applications.
S. White, LBS 17 May 2010 1 Van Der Meer Scans: Preliminary Observations.

S. White, LBS 17 May Van Der Meer Scans: Preliminary Observations.

Similar presentations

Ads by Google