Dawn in the age of robotic oceanography: Utility in studying extreme events

7/31/2019 Dawn in the age of robotic oceanography: Utility in studying extreme events

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Dawn in the age of robotic oceanography:Dawn in the age of robotic oceanography:Utility in studying extreme eventsUtility in studying extreme events

Oscar Schofield, Scott Glenn, Josh KohutOscar Schofield, Scott Glenn, Josh KohutRutgers UniversityRutgers University

Coastal Observation and Prediction Sponsors:
http://www.sebs.rutgers.edu/


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Since October 2003

273 deployments, >100,000 kilometers flown, >5,000 days at sea


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Vessels-

Satellite

Satellite

Ships/Vessels

REMUS

Modelin

gLeadership

CODAR

Glider

DataVis.Secur

ityEducation

CODAR Network GliderFleet

L-Band & X-BandSatellite Receivers

3-D Nowcasts& Forecasts

Rutgers University - Coastal OceanObservation Lab


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Total inches of rainfall

0 32

Aug 20-29

First tropical storm to threaten NYCsince Hurricane Gloria in 1985

Flooding records broken in 26 rivers

Caused at least 56 deaths

Damage nearly $8 billion

Hurricane Irene

Science Results 1


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Two Gliders

Deployed by MARACOOS

in Hurricane Irene

RU16 Deployed for mappingbottom dissolvedoxygen. Provided data onmixing during storm.

RU23 Deployed to mapsubsurface T/S structure for

fisheries. Damaged early - drifter Recovered by fisherman Provided data on inertialcurrents during storm.


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14

33

29

105

60

salinity

% oxygen

temperature55

55

0

0

55

depth

depth

depth

8/12 9/07date

260

Hurricane IreneHurricane Irene


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WARM (RTG only)Assimilation of SST, after clouds

assume SST remains warm

COLD Update (AVHRR)Assimilation of SST, use glidertemp after storm enters region

Using glider temperatures decrease RMSE of Hurricane wind forecast intensityby 61% in the glider domains

Gliders can improve our understanding of extreme storms and improve

forecasting now, the main hurdle is deploying the network of gliders


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Understanding ecosystem changes along the West AntarcticPeninsula

Science Results 2


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We are using the WAP as zone to study how rapid warming can shift the food web

Fastest winter warming location on Earth

Northern WAP perennial ice is gone

87% glaciers in retreat

Sea ice duration decreased by ~60 days

Increase in ocean heat content

Increase in wind and clouds


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Adaptive Sampling of Penguin Habitats

Penguin

Foraging

locations


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Anvers Island

Hot spots along the peninsula are associated with

deep undersea canyons located near suitable breeding areas,which can be reached in a days foraging effort (~30 km).


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Data from 2007


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15/27Mark Moline & Bill Frazer


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Glider Data Traditional Sampling

Gliders can provide a sustained presence in sampling

extreme polar oceans allowing us to study ecosystem

responses to climate change

Th F t A t ti d M hi t M hi N t k


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Observatory (simulated) data

Virtual Ocean

Design, Testing and Deploy

Models

Data Assimilation

DataAnalysis

Science Questions & Drivers

~100 m

~3 km

Sensor &Platform

Data Synthesis: Nowcast & Data Impact

The Future: Automation and Machine to Machine Networks

Demonstration by the Ocean Observatory Initiative (10/30/2009-11/20/2009)


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A fleet of four glidersOctober 30 November 20, 2009

4 Deployments(3 Rutgers, 1University ofDelaware)

77 in-waterdays

1608 km flown


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COMBINING THE FIELD ASSETTS WITH OCEAN FORECASTSFOR PLANNING AND PROSECUTION EFFORTS

Known constraints (slow 0.5knot, Battery, shippinglanes)

Uncertain constraints(time-varying 3D currents)

Operate autonomously & re-plan daily

From A to B in theshortest time

Follow a time-varyingfeature (shelf-slopesalinity intrusion)


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PLANNING IN THE FUTURE


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Increase model resolution Reduce forecast error

The Future: Engaging next generation: The example of the Scarlet


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The Future: Engaging next generation: The example of the Scarlet

Knights Mission Summary

221 days at sea, first ocean basin crossing by an underwater robot.

Preparing for recovery offGalicia, Spain

Rutgers studentsin the COOLroom


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Web Portal

Interactive Data Interface

Google Earth, Glider GUI

Briefing Blog

Social networking tools developedto enable collaboration between

scientists and students in theU.S., Canada, Spain and Portugalon the RU15, RU17, and RU27 long-duration glider missions.

Trans-Atlantic Education

Gl b l Glid Ch ll Th Ch ll Mi i


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Global Glider Challenge The Challenger MissionDecember 9, 2009 Baiona, Spain

HMS Challenger VoyageFirst Scientific Circumnavigation1872-1876111,000 km =(15 gliders x 7,400 km/glider)

Rick Spinrad toBob Goodman:

Build and Coordinatea Global Glider Fleet

to complete the first

robotic revisit of the

HMS Challengers

Circumnavigation,

and inspire studentsalong the way.

Bob Goodman toRick Spinrad:

We acceptyour challenge.


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The undergraduate Challenger Mission: Please join the team

Documents

Dawn in the age of robotic oceanography: Utility in studying extreme events