GCOS GOOS WCRP/OOPC IX/3
Recommendations by CLIMAR II
CLIMAR II made the following recommendations which, except for the first under
Metadata , are not explicitly in the Boulder list. Within each subsection, recommendations
are in order of priority. Ideally, all (except CLIMAR III) should be implemented within 2
years. The consolidated Boulder and CLIMAR II recommendations are available at
http://www.cdc.noaa.gov/coads/climar2/recs.html. Throughout, the need to improve GCOS,
and to adhere to the GCOS Climate Monitoring Principles, is implicit.
1) All observations should be taken following the GCOS Climate Monitoring Principles,
remembering that any distinction between operational and climate observations is
2) Because remotely sensed data are an important part of the climate record, it is
recommended that the continuity and overlap of satellite missions should be planned in
line with the GCOS Climate Monitoring Principles.
3) It is important that we improve dialogue between Numerical Weather Prediction, climate
and data generation communities, through for example the GCOS Panels. Some
CLIMAR II participants should attend the JCOMM Products Workshop (OCEAN
OPS04) (Toulouse, 10 15 May 2004) to broaden its scope.
4) To ensure the extension of adequate climate observations into the future, it is necessary to
define target accuracies for fields of each of the basic meteorological variables (SST,
MAT, SLP, humidity, wind speed and direction, waves, cloud cover) and for their
combination into flux fields (sensible heat, latent heat, longwave radiation, shortwave
radiation, precipitation, atmospheric moisture, momentum). The adequacy of the
observations collected, as measured against these requirements, should be regularly
assessed. The Second Adequacy Report on the GCOS (GCOS, 2003) has already given an
overall assessment, but the Statements of Guidance on observing requirements for climate
need to be completed and regularly updated through the GCOS Panels.
5) Consider devising recommended standards for the location and design of meteorological
masts on new ships. Instruments should be stable in severe conditions. Continuity should
be maintained through any improvements and automation of in situ observations,
following the GCOS Climate Monitoring Principles.
6) Develop, through JCOMM and its Expert Team on Marine Climatology (ETMC), a list of
appropriate climate indices for winds, waves and SLP. Indices are a logical update in
technology to marine meteorological summaries under MCSS. Development of climate
indices should be done in liaison with the WMO/CLIVAR/CCl Expert Team on Climate
Change Detection and Indices, and with the GCOS Panels.
7) The Global Ocean Observing System (GOOS) should support extra spectral ocean wave
measurements at existing sites in the Southern Ocean and tropics.
8) Investigate the inclusion of wave information in ICOADS summaries.
1) Digital availability of the entire record of the WMO ship catalogue (WMO, 1955 ), in a
format suitable for use in association with both operational and climate data, should be
made a priority. Editions for 1955 72 and 1999 onwards are not yet available in digital