We use the pronounced seasonal cycle in d18O and Sr/Ca to develop the final chronology of the coral core and assigned the highest d18O and Sr/Ca values to august 15 of each year, which is on average the coldest month. [...] The d18O and Sr/Ca time series were interpolated linearly into 6 and 12 equi- distant points for any given year between these anchor points using the Analyseries software|.083 to 0.167 yrs|chronological|months|on a seasonal scale coral d18O  and Sr/Ca at this location primarily reflects SST variability (Fig. 5; Table 1). "

Ifaty reef and Tulear Reef mean annual oxygen isotope records, 1660-1994

Column 'addR0cKoow0N7BR9Oula', with variable name 'yearEnsemble', was added to the dataset
Column 'addRlebPrQ5KSrJ238SQ', with variable name 'yearEnsemble', was added to the dataset

Zinke, J., Dullo, W.-C., Heiss, G. A. and Eisenhauer, A.: ENSO and Indian Ocean subtropical dipole variability is recorded in a coral record off southwest Madagascar for the period 1659 to 1995, Earth and Planetary Science Letters, 228(1-2), 177–194, doi:10.1016/j.epsl.2004.09.028, 2004.

ENSO and Indian Ocean subtropical dipole variability is recorded in a coral record off southwest Madagascar for the period 1659 to 1995

automated carbonate device (Kiel III, Finnigan MAT) attached to a Finnigan MAT Delta S mass spectrometer

SEM and X-ray diffraction on skeletal fragments at intervals of ~10cm

maximum and minimum ?18Ocoral values in a given year were assigned to February and August; linear interpolation between these fixed tie points

These results suggest that changes in Guam ?18Ocoral are mainly influenced by SST and SSS variations on seasonal and interannual timescales.

The d18Ocoral anomaly is significantly correlated with SST anomaly (SSTA) (r = -0.69 and p < 0.01) and SSS anomaly (SSSA) (r = 0.49 and p < 0.01). These results suggest that changes in Guam d18Ocoral are mainly influenced by SST and SSS variations on seasonal and interannual timescales.

an older version of this record can be found at: https://www.ncdc.noaa.gov/cdo/f?p=519:1:::::P1_study_id:1898