[Personnel: Last_Name='MITCHELL', First_Name='TODD']
Quinn (1992) El Nino Index, 1525-1987Entry ID: JISAO_QUINN_ELNINO_INDEX
Abstract: The University of Washington Joint Institute for the Study of the
Atmosphere and Ocean (JISAO) offers an El Nino Index covering the
years 1525-1987. Please link to the dataset homepage for documentation
and to download the data.
The information for this data is taken from Quinn (1992). The
assignments of strengths and El Nino years in Quinn (1992) is slightly
different from Quinn et al. (1987), ... usually with the year of
occurrence shifted by a single year or the magnitude of an episode
altered. The Quinn et al. (1987) listing is linked here. It is
probably best to use Quinn's last attempt at this characterization
(Quinn 1992). The authors based their El Nino identification on a
broad range of subjective and objective measures. Luc Ortlieb has
carried on the work of Quinn and collaborators.
Quinn and collaborators employed the following six categories:
0 neutral or cold
1 weak moderate (M-)
3 "moderate +"
5 "strong +"
6 very strong
The 1539-41, 1558-61, 1589-91, and 1707-09 episodes are designated by
Quinn as M/S; 1844-46 as M/S+; and 1887-89 M-/M+ . These designations
mean that the episode was of both magnitudes at different times.
This data may be freely downloaded from the JISAO home page.
Link to: http://jisao.washington.edu/data_sets/quinn/
[Summary extracted from the JISAO home page]
A similar data set based on the Quinn, et al. (1987) El Nino index is
(Click for Interactive Map)
Data Set Citation
Dataset Originator/Creator: Quinn, W. H.
Dataset Title: Quinn El Nino Index, 1525-1987
Dataset Release Place: Seattle, Washington, USA
Dataset Publisher: Joint Institute for the Study of the Atmosphere and Ocean (JISAO)Online Resource: http://jisao.washington.edu/data_sets/quinn/
Start Date: 1520-01-01Stop Date: 1987-12-31
Use Constraints Please cite the dataset orginator if you use this data.
Data Set Progress
Distribution Media: Online (HTTP)
Distribution Format: ASCII
Scientific Committee on Oceanic research (SCOR) 1983: Prediction of El
Nino. Proceedings No. 19 Paris. Annex VI, SCOR WG 55 47-51.
Ortlieb, L., 2000: The documented historical record of El Nino events
in Peru: An update of the Quinn record (Sixteenth through Ninententh
centuries). El Nino and the Southern Oscillation, Multiscale
Variability and Global and Regional Impacts, H. F. Diaz and
V. Markgraf, Eds., Cambridge Univ. Press, 207-295.
Quinn, W.H., 1993: The large-scale ENSO event, the El Nino and other
important regional features. Bull. Inst. Fr. Etudes Andines, 22,
Quinn, W. H., V. T. Neal, and S. E. Antunez de Mayolo, 1987: El Nino
occurrences over the past four and a half centuries. J. Geophys. Res.,
Quinn, W. H., 1992: A study of Southern Oscillation-related climatic
activity for A.D. 622-1900 incorporating Nile River flood data. El
Nino historical and paleoclimatic aspects of the Southern
Oscillation. H. F. Diaz and V. Markgraf, Eds., Cambridge Univ. Press,
Creation and Review Dates
DIF Creation Date: 2003-05-09
Last DIF Revision Date: 2006-07-03