enso.txt

http://www.cpc.ncep.noaa.gov/data/indices/ersst3b.nino.mth.81-10.ascii

http://ftp.cpc.ncep.noaa.gov/wd52dg/data/indices/ersst3b.nino.mth.81-10.ascii
http://ftp.cpc.ncep.noaa.gov/wd52dg/data/indices/ersst3b.nino.mth.ascii


these aren't the same readings, but they go out to last month
 - could we use the last few months as a way to estimate?
http://www.cpc.ncep.noaa.gov/data/indices/sstoi.indices
http://ftp.cpc.ncep.noaa.gov/wd52dg/data/indices/sstoi.indices

http://ftp.cpc.ncep.noaa.gov/wd52dg/data/indices/soi


http://www.cpc.ncep.noaa.gov/data/indices/ersst3b.nino.mth.81-10.rt.ascii
http://www.cpc.ncep.noaa.gov/data/indices/ersst4.nino.mth.81-10.ascii

http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/ensostuff/detrend.nino34.ascii.txt




this seems to be slightly different, but more current
http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/ensostuff/ensoyears_ERSSTv3b.shtml