Northwest Atlantic SST animations showing the interactions of Gulf Stream rings and meanders with the Shelf Water over Georges?and Browns Bank from NOAA-14 and NOAA-15 satellites from 1997-1999 (GB project)
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<p>Yearly Animations of Northwest Atlantic Surface Temperature Showing the Interactions of Gulf Stream Rings and Meanders with the Shelf Water over Georges Bank and Browns Bank.</p> <p>Richard Limeburner<br /> WHOI<br /> Woods Hole, MA<br /> rlimeburner@whoi.edu<br /> 2/27/2000</p> <p>Daily 3-day composite SST images of the Northwest Atlantic were obtained from the John Hopkins University Applied Physics Lab AVHRR web site and combined into yearly animations of ocean surface temperature for the period December 1996 to January 2000. The objective of this effort was to document the times when Gulf Stream rings entrained shelf water and/or intruded slope water onto the shelf near Georges Bank and Browns Bank.<br /> The animations are in a flc format and require a player. Sources of free players are available from http://www.gromada.com/index.html (the Moyager PC player) and http://globec.whoi.edu/globec-dir/aaplay.html. In the near future these animations will automatically play over the Internet without installing the players.<br /> The JHUAPL SST data archives begin December 1996 for the Gulf Stream region and the yearly animations are named<a href=\"http://globec.whoi.edu/globec-dir/gulf_stream_rings/sst97.flc\"> sst97.flc</a>, <a href=\"http://globec.whoi.edu/globec-dir/gulf_stream_rings/sst98.flc\">sst98.flc</a>, and <a href=\"http://globec.whoi.edu/globec-dir/gulf_stream_rings/sst99.flc\">sst99.flc</a>. The 60-m and 200-m isobaths were laid over the SST imagery and a time stamp was added. The date of each SST image corresponds to the center of a 3-day window of images that were made into a composite image.<br /> The monthly locations of Gulf Stream rings was located in the animations and plotted below for each year. Note the anomalously high number of rings in 1999.</p> <p>Figure 1. 1997 monthly ring positions <a href=\"http://globec.whoi.edu/globec-dir/gulf_stream_rings/image001-1997.jpg\">JPEG</a>, <a href=\"http://globec.whoi.edu/globec-dir/gulf_stream_rings/image001-1997.png\">PNG</a>.<br /> Figure 2. 1998 monthly ring positions <a href=\"http://globec.whoi.edu/globec-dir/gulf_stream_rings/image003-1998.jpg\">JPEG</a>, <a href=\"http://globec.whoi.edu/globec-dir/gulf_stream_rings/image003-1998.png\">PNG</a>.<br /> Figure 3. 1999 monthly ring positions <a href=\"http://globec.whoi.edu/globec-dir/gulf_stream_rings/image005-1999.jpg\">JPEG</a>, <a href=\"http://globec.whoi.edu/globec-dir/gulf_stream_rings/image051-1999.png\">PNG</a>.</p> <p>The presence of GS Ring Water (<strong>R)</strong> and Warm Slope Water (<strong>S)</strong> north of the 200-m isobath on the south side of Georges Bank is shown for 1997 (<a href=\"http://globec.whoi.edu/globec-dir/gulf_stream_rings/table_1.xlsx\" target=\"_blank\">Table 1</a>), 1998 (Table 2, not available), and 1999 (Table 3, not available).</p>
<p>西北大西洋海表温度年度动画：展示湾流环及湾流蜿蜒与乔治滩、布朗滩陆架水的相互作用</p><p>理查德·莱姆伯纳<br />伍兹霍尔海洋研究所（Woods Hole Oceanographic Institution, WHOI）<br />马萨诸塞州伍兹霍尔<br />rlimeburner@whoi.edu<br />2000年2月27日</p><p>本数据集所用的西北大西洋每日3天合成海表温度（Sea Surface Temperature, SST）影像取自约翰·霍普金斯大学应用物理实验室的高级甚高分辨率辐射计（Advanced Very High Resolution Radiometer, AVHRR）网站，并被整合为1996年12月至2000年1月期间的海表温度年度动画。本研究的目标是记录湾流环裹挟陆架水、或将陆坡水侵入乔治滩与布朗滩附近陆架的时段。</p><p>该动画采用flc格式，需专用播放器方可播放。免费播放器可从以下网址获取：http://www.gromada.com/index.html（Moyager PC播放器）以及http://globec.whoi.edu/globec-dir/aaplay.html。未来该类动画将可直接在互联网上自动播放，无需安装播放器。</p><p>约翰·霍普金斯大学应用物理实验室（Johns Hopkins University Applied Physics Laboratory, JHUAPL）的SST数据档案始于1996年12月的湾流海域，年度动画分别命名为<a href="http://globec.whoi.edu/globec-dir/gulf_stream_rings/sst97.flc">sst97.flc</a>、<a href="http://globec.whoi.edu/globec-dir/gulf_stream_rings/sst98.flc">sst98.flc</a>与<a href="http://globec.whoi.edu/globec-dir/gulf_stream_rings/sst99.flc">sst99.flc</a>。制作时已将60米与200米等深线叠加至SST影像，并添加了时间戳。每张SST影像的日期对应用于合成该影像的3天影像窗口的中心时刻。</p><p>研究人员从动画中提取了各月湾流环的位置，并按年份绘制如下。请注意1999年的湾流环数量异常偏多。</p><p>图1. 1997年各月湾流环位置 <a href="http://globec.whoi.edu/globec-dir/gulf_stream_rings/image001-1997.jpg">JPEG</a>、<a href="http://globec.whoi.edu/globec-dir/gulf_stream_rings/image001-1997.png">PNG</a><br />图2. 1998年各月湾流环位置 <a href="http://globec.whoi.edu/globec-dir/gulf_stream_rings/image003-1998.jpg">JPEG</a>、<a href="http://globec.whoi.edu/globec-dir/gulf_stream_rings/image003-1998.png">PNG</a><br />图3. 1999年各月湾流环位置 <a href="http://globec.whoi.edu/globec-dir/gulf_stream_rings/image005-1999.jpg">JPEG</a>、<a href="http://globec.whoi.edu/globec-dir/gulf_stream_rings/image051-1999.png">PNG</a></p><p>本数据集展示了1997年乔治滩南侧200米等深线以北区域的湾流环水（标记为R）与暖陆坡水（标记为S）的分布情况，相关数据详见<a href="http://globec.whoi.edu/globec-dir/gulf_stream_rings/table_1.xlsx" target="_blank">表1</a>；1998年（表2，未公开）与1999年（表3，未公开）的相关数据同理。</p>
