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

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本数据集通过视频延时相机（Video Time Lapse Camera, VTLC）于墨西哥湾（Gulf of Mexico, 简称GoM）的多个喷口采集所得，用于观测天然冷泉渗漏处烃类气泡释放的时空变化。所提供的视频数据均来自租赁区块GC600与MC118内的单个喷口。利用该VTLC开展的观测记录了天然气水合物部分裸露沉积物中释放出的单个气泡的形成过程。可通过视频片段测算气泡尺寸以及随时间推移的环境变化（如细菌席覆盖度）。研究人员开发了半自动气泡计数算法（Semi-automatic Bubble Counting Algorithm, SABCA），用于分析视频数据中的气泡数量与释放量。该方法适用于冷泉渗漏处常见的、带有小型气泡流的离散喷口，支持多场景调节与原位部署（详见文件中的MATLAB代码与SABCA说明文档）。此外，为探究气泡释放与压力变化的关联，研究人员将RbRduo压力温度传感器与VTLC同步部署，以分析气泡释放速率与潮汐波动间的相关性。本次部署的采样点包括：2010年11月26日的GC600-生日蜡烛（GC600-Birthday-Candles-11-26-2010），坐标为27.3643, -90.5637；2012年11月14日的GC600-巨型羽状流（GC600-Mega-Plume-11-14-2012），坐标为27.37007, -90.57093；2013年7月24日的MC118-拉迪维尔（MC118-Ruddyville-07-24-2013），坐标为28.85227, -88.49218；以及2014年3月9日的GC600-巨型羽状流（GC600-Mega-Plume-03-09-2014），坐标为27.3701, -90.5709。