CSIRO Atlas of Regional Seas (CARS) 2006 Bottom Water Nitrate Data Standard Deviation

CARS2006 spans the southern 2/3 of the worlds oceans, from 70S to 26N, except in the Atlantic where is reaches only to10N. The six water properties mapped in are temperature (deg C), salinity (PSU), oxygen (ml/litre), nitrate (micromole/litre), silicate (micromole/litre), phosphate (micromole/litre). It comprises historic mean fields and average seasonal cycles, derived from all available historical subsurface ocean property measurements (primarily research vessel instrument casts and autonomous profiling buoys). The standard deviation for the nitrate data is used to show the spatial and temporal variation of nitrate in the bottom water utilising all of the historical data for each day of the year. This dataset is a contribution to the CERF Marine Biodiversity Hub.CARS2006数据集覆盖全球海洋南纬70°至北纬26°的海域，该范围涵盖全球海洋的南部三分之二区域；大西洋海域除外，其北界仅延伸至北纬10°。本次数据集包含六项海水参数：温度（摄氏度，°C）、盐度（实用盐度单位（PSU））、溶解氧（毫升/升）、硝酸盐（微摩尔/升）、硅酸盐（微摩尔/升）及磷酸盐（微摩尔/升）。该数据集包含历史平均场与平均季节循环序列，其数据源自所有可获取的历史次表层海洋参数观测资料，主要包括科研船舶仪器剖面测量数据与自主剖面浮标观测数据。本数据集采用硝酸盐数据的标准差，结合全年每日的全部历史观测数据，以表征底层海水中硝酸盐的时空变化特征。本数据集是CERF海洋生物多样性中心（CERF Marine Biodiversity Hub）的贡献成果。