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Video Time Lapse Camera data of hydrocarbon bubble release at natural seeps in Mississippi Canyon and Green Canyon, northern Gulf of Mexico, November 2010 – March 2014

Ecosystem Impacts of Oil and Gas Inputs to the Gulf (ECOGIG)

DOI:
10.7266/N7M906N3
 
UDI:
R1.x132.137:0037
Last Update:
Oct 10 2016 23:07 UTC
 
Dataset Author(s):
Ian MacDonald
Point of Contact:
MacDonald, Ian
Florida State University / Department of Earth, Ocean, and Atmospheric Science
1017 Academic Way PO Box 3064520
Tallahassee, Florida  32306
USA
imacdonald@fsu.edu
Funding Source:
RFP-I
Data Collection Period:
2010-11-26 to 2014-03-09

Identified Submitted Review Available
3 3 3 3

Abstract:

This data was collected using a Video Time Lapse Camera (VTLC) at various vents in the GoM to observe spatial and temporal variation in hydrocarbon bubble release at natural seeps. The video data provided are from individual vents in lease blocks GC600 and MC118. Observations with the VTLC captured the formation of individual bubbles as they were released through partly exposed deposits of gas hydrate. Bubble size, and environmental changes over time (i.e. bacterial mat coverage) can be determined from video clips. A semi-automatic bubble counting algorithm (SABCA) was developed to analyze bubble count and release measurements from video data. This method is suitable for discrete vents with small bubble streams commonly seen at seeps. It is adjustable to multiple settings, and in situ set-ups (refer to MATLAB code and SABCA description in file). Additionally, to determine a relationship between bubble release and pressure changes, a RbRduo pressure and temperature sensor was deployed with the VTLC to determine if there was a correlation between bubble release rates, and tidal fluctuations. Deployments include GC600-Birthday-Candles-11-26-2010 at 27.3643 -90.5637; GC600-Mega-Plume-11-14-2012 at 27.37007 -90.57093; MC118-Ruddyville-07-24-2013 at 28.85227 -88.49218; and GC600-Mega-Plume-03-09-2014 at 27.3701 -90.5709

Purpose:

We observe the variability of bubble release from natural seeps over longer time scales. Longer term deployments (days to months) are necessary in order to capture important processes such as temporal and spatial variability, biological effects, and changes in oil and gas content of bubbles. This is accomplished by deploying the autonomous VTLC at individual seeps for extended periods of time.

Theme Keywords:

bubble flux, natural seeps, hydrocarbon seep, GC600, MC118

File Format:

mov, jpg, txt, xlsx

Dataset Downloads:

31

Video Time Lapse Camera data of hydrocarbon bubble release at natural seeps in Mississippi Canyon and Green Canyon, northern Gulf of Mexico, November 2010 – March 2014



Identification Information
Distribution Information
Metadata Maintenance Information

Metadata: 
  File identifier: 
      R1.x132.137-0037-metadata.xml
  Language: 
      eng; USA
  Character set: 
    Character set code: 
      utf8
  Hierarchy level: 
    Scope code: 
      dataset
  Metadata author: 
    Responsible party: 
      Individual name: 
          Ian MacDonald
      Organisation name: 
          Florida State University / Department of Earth, Ocean, and Atmospheric Science
      Position name: 
          Professor
      Contact info: 
        Contact: 
          Phone: 
            Telephone: 
              Voice: 
                  8506445498
              Facsimile: 
          Address: 
            Address: 
              Delivery point: 
                  1017 Academic Way
                  PO Box 3064520
              City: 
                  Tallahassee
              Administrative area: 
                  Florida
              Postal code: 
                  32306
              Country: 
                  USA
              Electronic mail address: 
                  imacdonald@fsu.edu
      Role: 
        Role code: 
          principalInvestigator
  Date stamp: 
      2018-08-11T13:35:56+00:00
  Metadata standard name: 
      ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
  Metadata standard version: 
      ISO 19115-2:2009(E)
  Dataset URI: 
      https://data.gulfresearchinitiative.org/metadata/R1.x132.137:0037
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Identification info: Data identification: Citation: Citation: Title: Video Time Lapse Camera data of hydrocarbon bubble release at natural seeps in Mississippi Canyon and Green Canyon, northern Gulf of Mexico, November 2010 – March 2014 Alternate title: Date: Date: Date: 2016-10-10 Date type: Date type code: publication Abstract: This data was collected using a Video Time Lapse Camera (VTLC) at various vents in the GoM to observe spatial and temporal variation in hydrocarbon bubble release at natural seeps. The video data provided are from individual vents in lease blocks GC600 and MC118. Observations with the VTLC captured the formation of individual bubbles as they were released through partly exposed deposits of gas hydrate. Bubble size, and environmental changes over time (i.e. bacterial mat coverage) can be determined from video clips. A semi-automatic bubble counting algorithm (SABCA) was developed to analyze bubble count and release measurements from video data. This method is suitable for discrete vents with small bubble streams commonly seen at seeps. It is adjustable to multiple settings, and in situ set-ups (refer to MATLAB code and SABCA description in file). Additionally, to determine a relationship between bubble release and pressure changes, a RbRduo pressure and temperature sensor was deployed with the VTLC to determine if there was a correlation between bubble release rates, and tidal fluctuations. Deployments include GC600-Birthday-Candles-11-26-2010 at 27.3643 -90.5637; GC600-Mega-Plume-11-14-2012 at 27.37007 -90.57093; MC118-Ruddyville-07-24-2013 at 28.85227 -88.49218; and GC600-Mega-Plume-03-09-2014 at 27.3701 -90.5709 Purpose: We observe the variability of bubble release from natural seeps over longer time scales. Longer term deployments (days to months) are necessary in order to capture important processes such as temporal and spatial variability, biological effects, and changes in oil and gas content of bubbles. This is accomplished by deploying the autonomous VTLC at individual seeps for extended periods of time. Status: Progress code: completed Point of contact: Responsible party: Individual name: Ian MacDonald Organisation name: Florida State University / Department of Earth, Ocean, and Atmospheric Science Position name: Professor Contact info: Contact: Phone: Telephone: Voice: 8506445498 Facsimile: Address: Address: Delivery point: 1017 Academic Way PO Box 3064520 City: Tallahassee Administrative area: Florida Postal code: 32306 Country: USA Electronic mail address: imacdonald@fsu.edu Role: Role code: principalInvestigator Descriptive keywords: Keywords: Keyword: bubble flux Keyword: natural seeps Keyword: hydrocarbon seep Keyword: GC600 Keyword: MC118 Type: Keyword type code: theme Descriptive keywords: Keywords: Keyword: Gulf of Mexico Type: Keyword type code: place Language: eng; USA Topic category: Topic category code: geoscientificInformation Topic category: Topic category code: oceans Extent: Extent: Geographic element: Geographic bounding box: West bound longitude: -90.57093 East bound longitude: -88.49218 South bound latitude: 27.3643 North bound latitude: 28.85227 Geographic element: BoundingPolygon: Polygon: gml:MultiPoint: gml:pointMember: Point: gml:pos: 27.3643 -90.5637 gml:pointMember: Point: gml:pos: 27.37007 -90.57093 gml:pointMember: Point: gml:pos: 28.85227 -88.49218 gml:pointMember: Point: gml:pos: 27.3701 -90.5709 Temporal element: Temporal extent: Extent: Time period: Description: ground condition Begin date: 2010-11-26 End date: 2014-03-09 Supplemental Information: video files (.mov), video time lapse image files (.jpg); SABCA matlab code and instructions; Text files containing variable lists and summary results of bubble counts and release measurement; VLTCdeployments.xlsx - describes deployement info and some annotations, Camera; Deployed; Recovered; ROV; Benthos Release (Yes/No); Site (Lease Block); Vent (location); Lat (latitude); Long (longitude); Deployed (date camera deployed (mm-dd-yy)); Retrieved (Date camera retrieved (mm-dd-yy)); Trigger; Snap; Interval; RbRduo (Depth in meter/pressure in dBar); Folder Frames; DurationInSeconds; LowEstimate; LowBubblePerSec; MediumEstimate; MediumBubblePerSec; HighEstimate; HighBubblePerSec|||||
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Distribution info: Distribution: Distributor: Distributor: Distributor contact: Responsible party: Organisation name: Gulf of Mexico Research Initiative Information and Data Cooperative (GRIIDC) Contact info: Contact: Phone: Telephone: Voice: 3618253604 Address: Address: Delivery point: 6300 Ocean Drive City: Corpus Christi Administrative area: TX Postal code: 78412 Country: USA Electronic mail address: griidc@gomri.org Online Resource: Online Resource: Linkage: URL: https://data.gulfresearchinitiative.org Role: Role code: distributor Distributor format: Format: Name: mov, jpg, txt, xlsx Version: inapplicable File decompression technique: zip Distributor transfer options: Digital transfer options: Transfer size: 42995.7081 Online: Online Resource: Linkage: URL: https://data.gulfresearchinitiative.org/data/R1.x132.137:0037 Protocol: https
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Metadata maintenance: Maintenance information: Maintenance and update frequency: unknown Maintenance note: This ISO metadata record was automatically generated from information provided to GRIIDC for dataset: R1.x132.137:0037 on 2018-12-12T17:02:35+00:00
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