Underway surface data. NE Atlantic/North Sea. Mainly ship of opportunity data.
| Period | Map | Data (zipped) |
| 1891-99 | Map | zs189199.zip (0.1 Mb) |
| 1900-19 | Map | zs190019.zip (0.9 Mb) |
| 1920-29 | Map | zs192029.zip (0.6 Mb) |
| 1930-39 | Map | zs193039.zip (0.9 Mb) |
| 1940-49 | Map | zs194049.zip (0.2 Mb) |
| 1950-59 | Map | zs195059.zip (1 Mb) |
| 1960-69 | Map | zs196069.zip (1.1 Mb) |
| 1970-79 | Map | zs197079.zip (1.3 Mb) |
| 1980-89 | Map | zs198089.zip (0.9 Mb) |
| 1990-99 | Map | zs199099.zip (2.2 Mb) |
| 2000-00 | Map | ZS200000.zip (1.2 Mb) |
| 2001-01 | Map | ZS200101.zip (0.9 Mb) |
| 2002-02 | Map | zs200202.zip (1.9 Mb) |
| 2003-03 | Map | ZS200303.zip (2.4 Mb) |
| 2004-04 | Map | zs200404.zip (3.3 Mb) |
| 2005-05 | Map | ZS200505.zip (0.7 Mb) |
| 2006-06 | Map | zs200606.zip (1.3 Mb) |
| 2007-07 | Map | zs200707.zip (0.2 Mb) |
| 2008-08 | Map | ZS200808.zip (0.2 Mb) |
| 2012-12 | Map | zs201212.zip (0.1 Mb) |
| 2013-13 | Map | zs201313.zip (0.2 Mb) |
| 2014-14 | Map | zs201414.zip (0 Mb) |
