Chad Lembke, Andrew Warren, David Edwards, Andrew Farmer
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NSTC JSOST Deepwater Horizon Oil Spill Principal Investigator (PI) Conference St. Petersburg, FL, October 5-6, 2010 Acknowledgements Funding for activities provided by the Office of Naval Research and the State of Florida. Thanks for scientific guidance from Robert Weisberg, Chuanmin Hu, Yonggang Lui, David English, David Mann, Frank Muller-Karger, Ernst Peebles (USF CMS). Thanks for engineering and operational support from Steven Butcher, Karen Dreger, Graham Tilbury, Mike Lindemuth (USF COT), and Mike Hall (AEOS). Thanks for glider collaborations from John Kerfoot, Oscar Schofield (RU), Gary Kirkpatrick, and Alan Hailes (MML). Temperature Mission 48, Late June 2010 (MG portion of deployment) Mission 49, Mid July 2010 (MG portion of deployment) Density [g/l] Dissolved Oxygen [m/l] Chlorophyll [ug/l] CDOM [ppb] Backscatter Salinity Mission 47, Early June 2010 Middle Grounds Transect Comparisons: • Three missions were conducted that passed over similar areas along the Middle Grounds transect. • These missions encompass early June through late July. • Plots are tailored to portions of the missions through the Middle Grounds, roughly from the 30m to 60m isobaths. • All plots of a particular variable are all scaled similar. • Data gaps near the surface in some plots are due to incomplete yos because of density and/or remora induced buoyancy issues. Since the blowout of the Deepwater Horizon rig, a number of institutions performed operations to demonstrate the utility of autonomous gliders in monitoring the water property structure to assist in locating and tracking sub-surface oil plumes. On the West Florida Shelf, the University of South Florida, Mote Marine Laboratories, Rutgers University, and the University of Delaware performed at least 14 deployments of varying length (one currently ongoing). All of the data from these deployments have been displayed real time via the Rutgers University Coastal Ocean Observation Lab website to be shared with the response community. University of South Florida’s College of Marine Science’s glider deployments focused on the shelf region from Tampa Bay north to near the Big Bend region. USF’s gliders are equipped with a CTD, a WetLabs Triple-puck Fluorometer (chl, cdom, red backscatter), an Aanderraa Dissolved Oxygen Optode, Satlantic Radiance / Irradiance sensors, and USF’s Passive Acoustic Recorder. Since mid-April, USF gliders have performed eight full or partial across shelf transects as part of a series of five deployments. Presented here is some of the data collected and plotted as comparative transects over the same locations weeks to months apart. The resulting data sets provide indispensible three-dimensional water property structure for the Eastern Gulf of Mexico. Glider Deployments on the West Florida Shelf following the Deepwater Horizon Blowout Chad Lembke, Andrew Warren, David Edwards, Andrew Farmer Mission 43 April 2010 (1 st Leg of Deployment) Mission 49 August 2010 (<100m portion of Tampa Bay transect) Temperature Salinity Density [g/l] Dissolved Oxygen [m/l] Chlorophyll [ug/l] CDOM [ppb] Backscatter Tampa Bay Transect • Two missions were conducted this year that passed over similar areas along the Tampa Bay transect in late April and early August. • Plots are tailored to portions of missions along transect roughly from 90m to 30m isobaths. • All plots of a particular variable are all scaled similar. • Optical data late in the second mission may be compromised due to biofouling. Mission 46 Early June 2010 Mission 48 July 2010 Last leg of deployment Temperature Salinity Density [g/l] Dissolved Oxygen [m/l] Chlorophyll [ug/l] CDOM [ppb] Backscatter Tarpon Springs Transect Comparisons: • Two missions were conducted that completed a full shelf transect offshore of Tarpon Springs. • These missions encompass early June and mid-July. • Following are plots that depict the entire transect, from the shelf break at 200m to 30m. • Plots of a particular variable are all scaled similar.
Transcript of Chad Lembke, Andrew Warren, David Edwards, Andrew Farmer
NSTC JSOST Deepwater Horizon Oil Spill Principal Investigator (PI) Conference
St. Petersburg, FL, October 5-6, 2010
AcknowledgementsFunding for activities provided by the Office of Naval Research and the State of Florida.
Thanks for scientific guidance from Robert Weisberg, Chuanmin Hu, Yonggang Lui, David English, David Mann, Frank Muller-Karger, Ernst Peebles (USF CMS).
Thanks for engineering and operational support from Steven Butcher, Karen Dreger, Graham Tilbury, Mike Lindemuth (USF COT), and Mike Hall (AEOS).
Thanks for glider collaborations from John Kerfoot, Oscar Schofield (RU), Gary Kirkpatrick, and Alan Hailes (MML).
Temperature
Mission 48, Late June 2010 (MG portion of deployment)
Mission 49, Mid July 2010 (MG portion of deployment)
Density [g/l] Dissolved Oxygen [m/l] Chlorophyll [ug/l] CDOM [ppb] BackscatterSalinity
Mission 47, Early June 2010
Middle Grounds Transect Comparisons:
• Three missions were conducted that passed over similar areas along the Middle Grounds transect.
• These missions encompass early June through late July.
• Plots are tailored to portions of the missions through the Middle Grounds, roughly from the 30m to 60m isobaths.
• All plots of a particular variable are all scaled similar.
• Data gaps near the surface in some plots are due to incomplete yos because of density and/or remora induced buoyancy issues.
Since the blowout of the Deepwater Horizon rig, a number of institutions performedoperations to demonstrate the utility of autonomous gliders in monitoring the waterproperty structure to assist in locating and tracking sub-surface oil plumes.
On the West Florida Shelf, the University of South Florida, Mote Marine Laboratories,Rutgers University, and the University of Delaware performed at least 14 deployments ofvarying length (one currently ongoing). All of the data from these deployments havebeen displayed real time via the Rutgers University Coastal Ocean Observation Labwebsite to be shared with the response community.
University of South Florida’s College of Marine Science’s glider deployments focused onthe shelf region from Tampa Bay north to near the Big Bend region. USF’s gliders areequipped with a CTD, a WetLabs Triple-puck Fluorometer (chl, cdom, red backscatter), anAanderraa Dissolved Oxygen Optode, Satlantic Radiance / Irradiance sensors, and USF’sPassive Acoustic Recorder. Since mid-April, USF gliders have performed eight full orpartial across shelf transects as part of a series of five deployments. Presented here issome of the data collected and plotted as comparative transects over the same locationsweeks to months apart. The resulting data sets provide indispensible three-dimensionalwater property structure for the Eastern Gulf of Mexico.
Glider Deployments on the West Florida Shelf following the Deepwater Horizon Blowout
Chad Lembke, Andrew Warren, David Edwards, Andrew Farmer
Mission 43April 2010 (1st Leg of Deployment)
Mission 49August 2010(<100m portionof Tampa Bay transect)
Temperature Salinity Density [g/l] Dissolved Oxygen [m/l] Chlorophyll [ug/l] CDOM [ppb] Backscatter
Tampa Bay Transect
• Two missions were conducted this year that passed over similar areas along the Tampa Bay transect in late April and early August.
• Plots are tailored to portions of missions along transect roughly from 90m to 30m isobaths.
• All plots of a particular variable are all scaled similar.
• Optical data late in the second mission may be compromised due to biofouling.
Mission 46Early June 2010
Mission 48July 2010Last leg of deployment
Temperature Salinity Density [g/l] Dissolved Oxygen [m/l] Chlorophyll [ug/l] CDOM [ppb] BackscatterTarpon Springs Transect Comparisons:
• Two missions were conducted that completed a full shelf transect offshore of Tarpon Springs.
• These missions encompass early June and mid-July.
• Following are plots that depict the entire transect, from the shelf break at 200m to 30m.
• Plots of a particular variable are all scaled similar.
