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Comparison of the number of stations by instrument type in WOD09
with previous NODC/WDC global ocean databases
 
Dataset NODC (1974)1 NODC (1991)2 WOA94 WOD98 WOD01 WOD05 WOD09
OSD3 425,000 783,912 1,194,407 1,373,440 2,121,042 2,258,437 2,544,196
CTD4 na 66,450 89,000 189,555 311,943 443,953 641,845
MBT5 775,000 980,377 1,922,170 2,077,200 2,376,206 2,421,935 2,427,277
XBT 290,000 704,424 1,281,942 1,537,203 1,743,590 1,930,399 2,109,400
MRB na na na 107,715 297,936 445,371 566,540
DRB na na na na 50,549 108,564 122,226
PFL na na na na 22,637 168,988 520,816
UOR na na na na 37,645 46,699 88,184
APB na na na na 75,665 75,665 89,558
GLD na na na na na 338 5,857
Total Casts 1,490,000 2,535,163 4,487,519 5,285,113 7,037,213 7,900,349 9,115,899
Plankton       83,650 142,900 150,250 218,695
SUR6 na   na na 4,743 9,178 9,178

1 Based on statistics from Climatological Atlas of the World Ocean (1982).
2 Based on NODC Temperature Profile CD-ROM.
3 WOD09 OSD dataset includes data from 121,763 low-resolution CTD casts and 1,489 low-resolution XCTD casts.
4 WOD09 CTD dataset includes data from 5,985 high-resolution XCTD casts.
5 WOD09 MBT dataset includes data from 80,325 DBT profiles and 5,659 Micro-BT profiles.
6 Surface data are represented differently from profile data in the database – all observations in a single
cruise have been combined into one “cast” with zero depth, value(s) of variable(s) measured, latitude, longitude,
and Julian year-day to identify data and position of individual observations.

  Last modified:    Tue, 9-Nov-2010 17:09 UTC NODC.Webmaster@noaa.gov
 
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