Name: plumes_EM302_400ftdiam

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Description: Natural gas plumes in the water column as detected by the RV Okeanos Explorer's EM302 multibeam sonar in 2011, 2012, and 2014. 400 foot diameter circles to indicate the uncertainty of the exact seep location on the seafloor, which varies with water depth. You will note many of the circles are clumped nearby each other. Due to the nature of overlapping swath data acquisition, some of those clumps may actually represent a single seep from the same spot on the seafloor; some are near the center of the swath (most accurate) and some well away from the center of the swath (less accurate). This is why there is a 400 foot diameter of uncertainty.

Copyright Text: William Shedd (william.shedd@boem.gov), Jon Burrell (jon.burrell@boem.gov), Pierre Abadie (pierre.abadie@boem.gov) & Kody Kramer, Bureau of Ocean Energy Management, Office of Resource Evaluation, New Orleans, LA. & NOAA.

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YMax: 29.0014340244607
Spatial Reference: 4267 (4267)

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Last Edit Date: 12/17/2024 7:03:02 PM

Schema Last Edit Date: 12/17/2024 7:03:02 PM

Data Last Edit Date: 11/13/2024 6:20:34 PM

Supported Operations:   Query   Query Top Features   Query Analytic   Query Bins   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat