fraction: NA

rank: NA

scope: climate

fraction: NA

rank: NA

scope: climate

rank: NA

scope: climate

fraction: NA

scope: climate

rank: NA

scope: climate

fraction: NA

rank: NA

scope: climate

fraction: NA

rank: NA

scope: climate

rank: NA

scope: climate

fraction: NA

scope: climate

rank: NA

scope: climate

basis: there are some indications from the salinity record for New Caledonia [Quinn et al., 1996b] of interannual changes of as much as 0.5 per mil. The potential impact of a 0.5 per mil interannual salinity variation on d18O seawater enceo n interannucaol ral$ ?80r angefsr om 0.14 per mil [Fairbanks et al., 1997] to 0.15 per mil [Craig and Gordon, 1965]. This effect could explain part of the difference in the seasonal and mean annual slope of d180/SST is discussed above.

direction: decrease/increase

interpDirection: decrease/increase

scope: climate

variable: temperature

variableDetail: sea surface

variableGroup: temperature and salinity

scope: climate

scope: climate

basis: Calibration between the instrument (local SST and gridded GISST2) and proxy records was evaluated using two regression techniques: standard ordinary least sqaures and reduced major axis.

direction: negative

fraction: 0.77

inferredMaterial: seawater

integrationTime: 3 months (1657-1952), 12 months (1952-1992)

integrationTimeBasis: For the upper part of the record (1992-1952) a calendar year was first assigned to each density-band couplet and hence to every 12 samples assuming linear subannual skeletal extension. Second, systematic variations in oxygen isotopic composition were correlated with monthly SST values by using the AnalySeties program [Paillard et al., 1996] to match the peaks and troughs in the two time series. For the lower part of the record (1657-1951), simple band counting was used to extend the chronology back to the beginning of the record, which we estimate to be 1657. Although we have no absolute dates on this coral, Crowley et al. [1997] recently demonstrated that some of the distinctive cool excursions in the mean annual record coincide within 1 year of known volcanic eruptions as determined from the volcano chronology of Sirekin and Siebert [1994] and various ice core records

integrationTimeUncertainty: 2-3 months

integrationTimeUncertaintyType: chronological

integrationTimeUnits: year

mathematicalRelation: linear

rank: 1

scope: isotope

seasonality: subannual

variable: temperature

variableGroup: Temperature

variableGroupDirection: negative

variableGroupOriginal: T_water

coefficient: NA

direction: positive

inferredMaterial: seawater

integrationTime: 3 months (1657-1952), 12 months (1952-1992)

integrationTimeBasis: For the upper part of the record (1992-1952) a calendar year was first assigned to each density-band couplet and hence to every 12 samples assuming linear subannual skeletal extension. Second, systematic variations in oxygen isotopic composition were correlated with monthly SST values by using the AnalySeties program [Paillard et al., 1996] to match the peaks and troughs in the two time series. For the lower part of the record (1657-1951), simple band counting was used to extend the chronology back to the beginning of the record, which we estimate to be 1657. Although we have no absolute dates on this coral, Crowley et al. [1997] recently demonstrated that some of the distinctive cool excursions in the mean annual record coincide within 1 year of known volcanic eruptions as determined from the volcano chronology of Sirekin and Siebert [1994] and various ice core records

integrationTimeUncertainty: 2-3 months

integrationTimeUncertaintyType: chronological

integrationTimeUnits: year

mathematicalRelation: linear

rank: 2

scope: isotope

variable: seawaterIsotope

variableGroup: EffectiveMoisture

variableGroupDirection: negative

variableGroupOriginal: d18O_seawater

coefficient: NA

fraction: NA

scope: isotope

coefficient: NA

fraction: NA

rank: NA