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ICOADS Value-Added Database (IVAD)

Project aim: to confront the complex obstacles associated with our current inability to trace value-added improvements back to individual ICOADS observations, specifically through: (a) establishment of a database management system to support development of value-added records and facilitate user access; (b) implementation of supporting modifications to the International Maritime Meteorological Archive (IMMA) format; and (c) to scientifically demonstrate the impact of value-added records on air-sea flux estimates and common climate indicator series. Variation of measurement height (m) with ship length (m) in the period 1980-2002
Kent et al. (2007)
Fig. 7 from Kent, E.C., S.D. Woodruff and D.I. Berry, 2007: WMO Publication No. 47 metadata and an assessment of observation heights in ICOADS. J. Atmos. Oceanic Technol., 24, 214-234 (doi:10.1175/JTECH1949.1).
Comparison of two sea surface temperature (SST) bias adjustments (degrees C)
Kent et al. (2010)
Comparison of linear trend (ms-1 decade-1) in measured (top) and estimated (bottom) ship wind speeds (1982-2002)
Thomas et al. (2007)
After Fig. 4 from Kent, E.C., J.J. Kennedy, D.I. Berry, and R.O. Smith, 2010: Effects of instrumentation changes on sea surface temperature measured in situ. Wiley Interdisciplinary Reviews: Climate Change, 1, 718-728 (doi:10.1002/wcc.55).
Upper part of Fig. 9 from Thomas B.R., E.C. Kent, V.R. Swail, and D.I. Berry, 2008: Trends in ship wind speeds adjusted for observation method and height. Int. J. Climatol., 28, 747-763 (doi:10.1002/joc.1570).