Cloud amount/frequency, NITRATE and other data from POINT SUR in the NE Pacific from 1991-02-14 to 1991-11-03 (NODC Accession 9300174)

The Conductivity, Temperature and Depth (CTD) and other data were collected in NE Pacific (limit-180). Data was collected from Ship POINT SUR and sent to shore via telecommunication. The data was collected over a period spanning from February 14, 1991 and November 3, 1991. Data was submitted in four files by Mr. Paul Jessen, Naval Postgraduate School, Monterey, CA. Data has been processed and is available in F022-CTD-Hi Resolution file format of NODC.

F022 High-resolution CTD data is collected from high resolution (conductivity-temperature-depth) instruments. As they are lowered and raised in the oceans, these electronic devices provide nearly continuous profiles of temperature, salinity and other parameters. Data values may be subject to averaging or filtering or obtained by interpolation and may be reported at depth intervals as fine as 1 m. Cruise and instrument information, position, date, time and sampling interval are reported for each station. Environmental data at the time of the cast (meteorological and sea surface conditions) may also be reported. The data record comprises values of temperature, salinity or conductivity, density (computed sigma-t) and possibly dissolved oxygen or transmissivity at specified depth or pressure levels. Data may be reported at either equally or unequally spaced depth or pressure intervals.

电导率-温度-深度（Conductivity, Temperature and Depth, CTD）及其他数据采集于东北太平洋（范围限180°经线）。数据由POINT SUR号科考船采集，并通过通信手段传送至岸基。数据采集时段为1991年2月14日至1991年11月3日。数据由加利福尼亚州蒙特雷海军研究生院的Paul Jessen先生以4个文件提交。数据已完成处理，可通过美国国家海洋数据中心（National Oceanographic Data Center, NODC）的F022-CTD高分辨率文件格式获取。

F022高分辨率CTD数据由高分辨率电导率-温度-深度仪器采集。当该电子设备在海洋中下放与回收时，可近乎连续地获取温度、盐度及其他参数的剖面数据。数据值可经过平均、滤波处理或通过插值得到，且可按最小1米的深度间隔进行记录报告。每个测站均会记录航次与仪器信息、站位坐标、日期、时间及采样间隔。测次开展时的环境数据（气象与海表状况）亦可同步记录。数据记录包含指定深度或压力层级下的温度、盐度（或电导率）、密度距平（σ-t），以及可能存在的溶解氧或透射率数据。数据可按等间距或不等间距的深度或压力间隔进行记录报告。