CeNCOOS Glider CeNCOOS Glider ActivitiesActivities

Francisco ChavezSenior Scientist

Monterey Bay Aquarium Research Institute

Glider/AUV ActivitiesGlider/AUV Activities•Spray glider continuously along CalCOFI Line 67 in collaboration Spray glider continuously along CalCOFI Line 67 in collaboration with Davis and Rudnick –Scripps with Davis and Rudnick –Scripps •Support deployments of 2 NPS Spray and 1 Webb glider – time Support deployments of 2 NPS Spray and 1 Webb glider – time and data available to CeNCOOSand data available to CeNCOOS•Support deployments of 2 UCSC Webb gliders – time and data Support deployments of 2 UCSC Webb gliders – time and data available to CeNCOOSavailable to CeNCOOS•Work collaboratively with Teledyne-Webb on development of Work collaboratively with Teledyne-Webb on development of deep gliders – data collected available to CeNCOOSdeep gliders – data collected available to CeNCOOS•Work collaboratively with Liquid Robotics on payloads for Wave Work collaboratively with Liquid Robotics on payloads for Wave GliderGlider•Work with MBARI on AUV developmentsWork with MBARI on AUV developments

Glider applicationsGlider applications• Climate/modelsClimate/models• HABsHABs• Biogeochemical cyclesBiogeochemical cycles• Ocean acidification/hypoxiaOcean acidification/hypoxia• Internal tides/sediment resuspensionInternal tides/sediment resuspension

CeNCOOS region “feels” large scale/global variations in climate

Gliders good tools to track variations in climate, feed models

Glider deployment Glider deployment strategiesstrategies• Continuous (lines – how long, grids – Continuous (lines – how long, grids –

scale)scale)• Process experimentsProcess experiments• Rapid responseRapid response

Existing and proposed glider operations

In support of climate change, modeling, process studies, HABs, etc. data in near real time

MBARI Ocean Acidification (OA) mooring – NSF support .

Wave Glider equipped with the same OA sensors

Upwelling Relaxation

Satellite sea surface temperature

Upwelling as observed from wave glider

Relaxation as observed from wave glider

CO2 pH

Very large gradients (as large as global means) observed on order of a

kilometer

Wave glider observations of pCO2 and pH

Atmosphere

A Spectrum of VehiclesLate ’90s>500 kgCarry many sensors at 1.5 m/s, but only lasts on order a day.

Early ’00s48 kgCan run for months, but can only carry a few sensors, and goes quite slowly (0.3 m/s).

2011100 kgMultiple operation modes>1000 km at 1 m/s>3000 km at 0.5 m/s>1 month

LRAUV

Spray

Jim Bellingham, MBARI

Ship

LRAUV

Glider

FutureFuture• 2012 – samplers for particles and 2012 – samplers for particles and

water, adaptive sampling, patch water, adaptive sampling, patch budgetsbudgetsUnder development by MBARI (Scholin, Bellingham) now

Long range AUV

Observations

Basic Ecosystem Rules

Managing our oceans

Model

Predictions of climate change

Modify behavior

No action

Physical modification, unexpected

eventsMitigationAdaptation

Regularly spaced Rapid focused response

How do mobile platforms fit into the big picture?

Finally the national Finally the national backbone!!!backbone!!!