- Version 2.2 of the global sea-ice and sea surface temperature data set, 1903-1994.
Report, electronic
Bib No.:
- 176530
Authors / Editors:
- Rayner, N.A.
- Horton, E.B.
- Parker, D.E.
- Folland, C.K.
- Hackett, R.B.
Corporate Author:
- Hadley Centre for Climate Prediction and Research.
Publication Date:
- 1996
Place of Publication:
- Bracknell
Publisher:
- Hadley Cent.Clim.Predict.Res
Physical Description:
- Pp.i+22+13pls.
Series:
- Climate Research Technical Note
Series Number:
- NO. 074
General Notes:
- An unpublished document - not to be quoted without permission.
Language:
- English
Media Type:
- Report, electronic
Collection:
- Digital Library and Archive
Holding Location:
- METDLA/5/5/4
Websites:
Attached Documents:
Abstract:
- This note presents version 2.2 of the monthly Global sea-Ice and Sea Surface Temperature (GISST) data set. GISST2.2 provides monthly SST and sea-ice fields for the period 1903-1994. GISST2.2 is intended as a forcing data set for Atmospheric GCMs and supersedes the first version, GISST1.1. We describe the development of the Empirical Orthogonal Function (EOF) technique used in the creation of global fields from incomplete observed data coverage. A coarse global trend EOF and finer 2 deg latitude by 2 deg longitude ocean basin EOFs are used to reconstruct the monthly fields for 1949-1981. The fields for 1903-1948 are used to reconstruct the monthly fields for 1949-1981. The fields for 1903-1948 are interpolated using ocean basin EOFs only on an equal area resolution equivalent to 10 deg latitude by 12 deg longitude at the equator. Fields for 1982-1994 include the influence of bias-corrected satellite-based Advanced Very High Resolution Radiometer (AVHRR) data and require very little interpolation. A new method of assigning SST to the marginal ice-zones is presented in detail. GISST2.2 is a significant improvement on GISST1.1. It incorporates a more accurate 1 deg latitude by 1 deg longitude 1961-1990 climatology and observed sea-ice concentration data, as well as the improved resolution and analysis methods of the SST fields.