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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.
The 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).
For
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.
The WGHC climatology is available as two CD–ROM ISO images containing
both observed and gridded data, respectively.
CD–ROM–1: contains
all observed profile data used for this climatology. There are 169
data files, each file including profiles from a 1–degree–latitude
zone. Download here.
CD–ROM–2: contains
objectively analysed all–data–mean profiles for one–half–degree
squares for the Global Ocean on 45 standard depth levels extending
from the sea surface to 6000 meter depth. The data are split into 6
files, each file representing a 59.5–degree longitude sector of the
World ocean. Download here
Note: Iso files can be mounted on Linux systems by means of the loop device, under Windows as virtual CD-Roms.
After successful mount the data files are accessible in the usual way.
If the downloaded file does not appear on the Desktop under MAC OSX then move it thereto.
Once on the Desktop the file can be opened just like a CDROM by clicking and the finder will open its contents.
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