Photosynthetically available radiation (PAR) from R/V Endeavor cruises in the Gulf of Maine and Georges Bank in 1995 as part of the U.S. GLOBEC program (GB project)
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<h2>Photosynthetically Available Radiation</h2> <p> </p> <ol> <li>Most information regarding individual profiles is provided with the individual data files (location, correction to GMT, light units, sensor type and characteristics, date of latest calibration).</li> <li>Upcast and downcast profiles sorted separately by depth, then time. Downcast listed first. Raw values listed - no averaging.</li> <li>All profiles were taken with the same two (Biospherical Instruments, Inc. San Diego, CA) instruments: underwater unit (PUV-500) and matched deck unit (PUV-510). Last Calibration of Sensors: 15 DEC 95.</li> <li>The December 1995 recalibration results have been applied to all readings. The change in calibrations from the previous April 1993 factory measurements were less than 2%.</li> <li>All profiles were taken from same location on the R/V Endeavor: starboard side using the J-frame. Whenever sea condition allowed, the ship was turned such that the sun was shining on the starboard side and as close to amidship as possible.</li> </ol> <pre> <strong>Contributor:</strong> Dr Jeff Van Keuren Wood Hole Oceanographic Inst. MS#35 Woods Hole, MA 02543-1521 <em>Updated: August 31, 2004; G.Heimerdinger</em></pre>
## 光合有效辐射（Photosynthetically Available Radiation） 1. 大部分单剖面的相关信息已随单个数据文件一并提供，包括采样位置、格林尼治标准时间（GMT）修正值、光照单位、传感器类型与特性，以及最新校准日期。 2. 上行剖面与下行剖面分别按深度、时间排序，且下行剖面优先列出。所有数据均为原始取值，未进行任何平均处理。 3. 所有剖面均由两台相同设备采集，设备制造商为加州圣地亚哥的Biospherical Instruments, Inc.公司：水下探测单元（PUV-500）及其配套甲板单元（PUV-510）。传感器最后校准日期为1995年12月15日。 4. 所有读数均已应用1995年12月的重新校准结果。相较于1993年4月的原厂校准结果，本次校准的参数变化幅度小于2%。 5. 所有剖面均在R/V Endeavor号科考船的同一位置采集：采用J型架在右舷侧开展操作。当海况允许时，船舶会调整航向，使太阳直射右舷侧且尽可能靠近船中区域。 **贡献者：** 杰夫·范·克伦（Jeff Van Keuren）博士 伍兹霍尔海洋研究所 MS#35 马萨诸塞州伍兹霍尔，02543-1521 *更新：2004年8月31日；G.海默丁格（G.Heimerdinger）*
