d18O (SP12NOBR00A): interpretation1_seasonality: 'annual' has been replaced by 'Annual'
d18O (SP12NOBR00A): interpretation1_variable: 'P' has been replaced by 'precipitation'
d18O (SP12NOBR00A): interpretation2_seasonality: 'JJA' has been replaced by 'Jun-Aug'
d18O (SP12NOBR00A): interpretation2_variable: 'P_isotope' has been replaced by 'precipitationIsotope'

d18O (SP12NOBR00A): interpretation1_seasonality: 'annual' has been replaced by 'Annual'
d18O (SP12NOBR00A): interpretation1_variable: 'P' has been replaced by 'precipitation'
d18O (SP12NOBR00A): interpretation2_seasonality: 'JJA' has been replaced by 'Jun-Aug'
d18O (SP12NOBR00A): interpretation2_variable: 'P_isotope' has been replaced by 'precipitationIsotope'

year (MATaeaf84af37): paleoData_units: 'AD' has been replaced by 'yr AD'
year (MATaeaf84af37): paleoData_longName: '' has been replaced by 'AD'
depth (MATf540e9cb93): paleoData_longName: '' has been replaced by 'AD'
d18O (SP12NOBR00A): paleoData_longName: '' has been replaced by 'AD'

d18O (SP12NOBR00A): interpretation4_scope: '' has been replaced by 'isotope'

Novello, V. F., Cruz, F. W., Karmann, I., Burns, S. J., Strikis, N. M., Vuille, M., Cheng, H., Lawrence Edwards, R., Santos, R. V., Frigo, E. and Barreto, E. A. S.: Multidecadal climate variability in Brazil’s Nordeste during the last 3000 years based on speleothem isotope records, Geophysical Research Letters, 39(23), n/a–n/a, doi:10.1029/2012gl053936, 2012.

Because Bat Cave relative humidity today varies between 70% and 95%, dry conditions are interpreted, in part, to reflect greater kinetic fractionation, resulting in higher ?13C and ?18O values in the stalagmite calcite. The stalagmite was sampled close to the entrance

Finnigan Delta Plus ratio mass spectrometer

Internal precision is ?0.1% for ?18O and ?13C

The major features (growht banding thickness) are replicated in other speleothems from the same cave and other caves in the region

Both isotopes and the thickness of the laminae decrease during periods of drought