Global Climatology and Atlantic Ocean Atlas

The WOCE Global Hydrographic Climatology WGHC (published as BSH Report 35, 2004) provides a consistent and coherent hydrographic gridded full depth data set on 45 depth levels with a 0.5° spatial resolution. High quality hydrographic observations from the WOCE one time and repeat hydrographic cruises with ca. 9000 stations for the period 1990 - 1998 are the modern basis. \n\nThe reference observed data set, comprising WOCE and high quality cruises occupied after 1970 (a total of 19867 profiles distributed over 384 cruises) is used to quality control a historical data set of older cruises occupied mostly before 1970 and profiles not included in the high quality subset (a total of 1 039 668 profiles distributed over ca. 42 000 cruises). \n\nFor the WGHC climatology the original profile data have been isopycnically averaged using optimal interpolation. Seven parameters subjected to a strict quality control are given: temperature, potential temperature, salinity, oxygen, silicate, nitrate, phosphate.

WOCE全球水文气候图集（WOCE Global Hydrographic Climatology，简称WGHC，以BSH报告第35号于2004年发布）提供了一套一致性与连贯性俱佳的网格化全深度水文数据集，该数据集涵盖45个深度层级，空间分辨率为0.5°。其现代数据基础源自1990年至1998年间，WOCE单次与重复水文巡航获取的高质量水文观测数据，共计约9000个测站。

包含WOCE巡航与1970年后开展的高质量巡航在内的参考观测数据集（共计384次巡航，分布19867条剖面），被用于对主要于1970年前开展的历史巡航数据集，以及未纳入高质量子集的剖面（共计约42000次巡航，分布1039668条剖面）开展质量控制。

针对WGHC气候图集，原始剖面数据通过最优插值（optimal interpolation）法完成等密度面平均。本次数据集给出7项经过严格质量控制的参数：温度、位温（potential temperature）、盐度、溶解氧、硅酸盐（silicate）、硝酸盐（nitrate）以及磷酸盐（phosphate）。