AUV CTD Time Series (900200)

09 June 2003

Project Goals

• Automate and sustain observations in Monterey Bay

• Increase the spatial resolution of regular and sustained observations (Pt Lobos CTD time series)

Team Members

• Francisco Chavez• Robert Fuhrmann• Drew Gashler• John Graybeal• Rich Henthorn

• Reiko Michisaki• Tom O’Reilly• John Ryan• Erich Rienecker• Brian Schlining

Coupled with DMO AUV Operations

• First sustained AUV science operations

• Leverage the efforts of other projects

• Low risk, high return operations.

• Near surface operations ease navigation requirement.

• Regular operations build sample size for reliability studies.

Year 2 Milestones

• Begin data acquisition operations (3/1)

• First data loaded into SSDS (6/1)

• New AUV payload integrated (8/1)

• Infrastructure for extended operations. (ongoing)

• 2003 Data set processed and loaded into SSDS (12/31)

Progress towards milestones (Data acquisition)

• Regular 25 km data acquisition operations have commenced.

• Vehicle flies sawtooth pattern between the surface and 250 meters. Passes within 500 m of M-1 mooring.

• Data sets have been acquired in April, May and June.

Year 2 Data Acquisition Operations(4 complete to date, 3-4 week intervals)

Progress towards milestones (Data handling)

• Data processing toolbox modularized.

• Data processing utilizes NetCDF format for compatibility with SSDS.

• First data sets have been processed.

• Processing procedures are a work in progress.

Progress towards milestones (Data handling)

• Data management system designed.

• Some elements have been implemented.

Portal

Original Data Archive tornado:\AUVCTD

Data Tracking

SSDS

1) Archive data and mission files

2) Send metadata to SSDS which describes: a) the mission b) the instruments on the AUV c) the data files - location of files - formats - what produced each data file

Original Data Archive tornado:\AUVCTD

Data Tracking NetCDF Archive prey:\iagdata\ssds\data

Applications

SSDS

3) SSDS retrieves the original data and converts them to NetCDF.

Original Data Archive tornado:\AUVCTD

Data Tracking NetCDF Archive prey:\iagdata\ssds\data

Applications

SSDS

4) Send an email notification of a new mission

Original Data Archive tornado:\AUVCTD

NetCDF Archive prey:\iagdata\ssds\data

SSDS

Web Server http://prey.shore.mbari.org/auvctd http://prey.shore.mbari.org/ssds/data

Progress towards milestones (CTD payload section)

• Vehicle nose section design complete.

Progress towards milestones (CTD payload section)

• Long lead items designed, ordered, fabricated, and received.

• On track for June assembly and August deployments.

Progress towards milestones (CTD payload section)

• Data acquisition housing and electronics designed, fabricated, tested, and received.

Next steps

• Participate in integration of 6 kW-hr vehicle midsection

• Install and test self contained ARGOS transmitter as emergency location aid.

• Develop and weigh concepts for extended duration operations.

• Perform attended operations of extended duration.

Some preliminary science results…