Nutrients; silicate, nitrate plus nitrite, and phosphate from R/V Weatherbird II WB0409, WB0413, WB0506, WB0508 in the Sargasso Sea from 2004-2005 (EDDIES project)

<h3>Nutrients; silicate, nitrate plus nitrite, phospate<br />
from Niskin bottle samples taken on all EDDIES WB cruises</h3>

<pre>
<strong>dates:</strong> 2004 - 2005
<strong>location:</strong> Sargasso Sea
<strong>project/cruise:</strong> EDDIES/WB0409 2004 Transect 1 (EDT1)
EDDIES/WB0413 2004 Transect 2 (EDT2)
EDDIES/WB0506 2005 Transect 1 (EDT3)
EDDIES/WB0508 2005 Transect 2 (EDT4)
<strong>platform:</strong> R/V Weatherbird II

Methodology: analyses performed by Paul Henderson ([e-mail]) at
WHOI Nutrients Facility; for sampling methodology, please refer to
U.S. JGOFS BATS Method Manual Version 4 (1997). Bermuda Atlantic
Time-Series Study April 1997. Anthony H. Knap, Anthony F. Michaels et al.,
136 pp. (link to <a href=\"http://ocb.whoi.edu/EDDIES/PI-NOTES/BATS_methods_TOC.html\">BATS Method Manual version 4</a> local copy)

Change history: YYMMDD
061211: downloaded original data from EDDIES data web site;
EddiesBBSR05 (client) 2006_final.xls;
070112: added to OCB database by Nancy Copley and Cyndy Chandler, OCB DMO
071004: downloaded CruiseID_nuts_final.txt files from EDDIES data Web site
and prepared for OCB; ammonium data and EDT sample identification
codes were not reported with this version of the data

OCB DMO note: match station number in cruise event log to determine
sampling location, date and time; depth_n estimated from depth and added
to enable merge with bottle data; these data are reported in umol/kg
for which the conversion is roughly: N_umol/kg = N_umol/L / 1.025

Analysis Note: files listing those data that are from the sample rerun:
<a href=\"http://ocb.whoi.edu/EDDIES/PI-NOTES/nutrient_reruns/WB_nuts_final_Si_reruns.txt\">WB Silicate reruns</a>
</pre>

<h3>营养盐：硅酸盐、硝酸盐与亚硝酸盐、磷酸盐<br />
采自所有EDDIES WB航次的尼斯金采水器（Niskin bottle）样品</h3>

<pre>
<strong>时间范围：</strong> 2004年—2005年
<strong>采样海域：</strong> 马尾藻海（Sargasso Sea）
<strong>项目/航次：</strong> EDDIES/WB0409 2004年断面1（EDT1）
EDDIES/WB0413 2004年断面2（EDT2）
EDDIES/WB0506 2005年断面1（EDT3）
EDDIES/WB0508 2005年断面2（EDT4）
<strong>调查平台：</strong> R/V Weatherbird II号科考船

<strong>分析方法：</strong> 分析工作由Paul Henderson（邮箱：[e-mail]）在WHOI营养盐实验室完成；采样方法请参考《美国全球海洋通量联合研究（JGOFS）百慕大大西洋时间序列研究（BATS）方法手册第4版（1997）》，百慕大大西洋时间序列研究，1997年4月，Anthony H. Knap、Anthony F. Michaels等，共136页。（本地副本链接：<a href="http://ocb.whoi.edu/EDDIES/PI-NOTES/BATS_methods_TOC.html">BATS方法手册第4版</a>）

<strong>变更记录：</strong> 格式为YYMMDD
061211：从EDDIES数据网站下载原始数据；对应文件为EddiesBBSR05（客户端）2006_final.xls；
070112：由Nancy Copley与Cyndy Chandler（OCB数据管理专员（DMO））将数据导入OCB数据库；
071004：从EDDIES数据网站下载CruiseID_nuts_final.txt文件并为OCB整理数据；此版本数据未包含铵盐数据与EDT样品识别码。

<strong>OCB DMO备注：</strong> 可通过航次事件日志中的站位编号匹配采样位置、日期与时间；补充估算得到的depth_n字段以适配与采水器数据的合并；本数据集以微摩尔每千克（umol/kg）为单位报告，其换算关系近似为：N_umol/kg = N_umol/L / 1.025

<strong>分析说明：</strong> 样品复测数据清单文件可参见：<a href="http://ocb.whoi.edu/EDDIES/PI-NOTES/nutrient_reruns/WB_nuts_final_Si_reruns.txt">WB硅酸盐复测数据</a>
</pre>