d18O (LPD179d915e): interpretation1_seasonality: 'winter' has been replaced by 'Winter'
d18O (LPD179d915e): interpretation1_variable: 'M' has been replaced by 'effectivePrecipitation'
d18O (LPD179d915e): interpretation2_variable: 'P_E' has been replaced by 'effectivePrecipitation'
d13C (LPDb99b434c): interpretation1_seasonality: 'winter' has been replaced by 'Winter'
d13C (LPDb99b434c): interpretation1_variable: 'M' has been replaced by 'effectivePrecipitation'

d18O (LPD179d915e): interpretation1_seasonality: 'winter' has been replaced by 'Winter'
d18O (LPD179d915e): interpretation1_variable: 'M' has been replaced by 'effectivePrecipitation'
d18O (LPD179d915e): interpretation2_variable: 'P_E' has been replaced by 'effectivePrecipitation'
d13C (LPDb99b434c): interpretation1_seasonality: 'winter' has been replaced by 'Winter'
d13C (LPDb99b434c): interpretation1_variable: 'M' has been replaced by 'effectivePrecipitation'

d18O (LPD179d915e): paleoData_longName: '' has been replaced by 'AD'
d13C (LPDb99b434c): paleoData_longName: '' has been replaced by 'AD'
depth (R0z6nrGW5zF): paleoData_longName: '' has been replaced by 'AD'
age (Radlltj5WHa): paleoData_units: 'BP' has been replaced by 'yr BP'
age (Radlltj5WHa): paleoData_datum: '' has been replaced by '1950'
age (Radlltj5WHa): paleoData_longName: '' has been replaced by 'AD'
year (RxqVHmYxjD9): paleoData_units: 'AD' has been replaced by 'yr AD'
year (RxqVHmYxjD9): paleoData_longName: '' has been replaced by 'AD'

d18O (LPD179d915e): interpretation3_scope: '' has been replaced by 'isotope'
d18O (LPD179d915e): interpretation4_scope: '' has been replaced by 'isotope'
d13C (LPDb99b434c): interpretation2_scope: '' has been replaced by 'isotope'
d13C (LPDb99b434c): interpretation3_scope: '' has been replaced by 'isotope'
d13C (LPDb99b434c): interpretation4_scope: '' has been replaced by 'isotope'

terrestrial plant leaf wax hydrogen isotope, possibly some aquatic waxes

Our interpretation of Lake N3 I´2Hterr as summer temperature is supported in several ways (Figure 3). First, I´2Hterr exhibits similar centennial-scale patterns during the past ~ 300 years as midge-inferred summer temperature anomalies at North Lake, western Greenland (Figure 3c) [Axford et al., 2013]. Coldest conditions in both records correspond with the Little Ice Age and end with warming in recent decades, a pattern also documented in Disko Bugt [Perner et al., 2013]. Second, the centennial-scale variability in Lake N3 I´2Hterr is remarkably similar to the 4 kyr-long record of annual average surface temperature at Greenland Ice Sheet Project 2 (GISP2), Greenland (r2 = 0.43) [Kobashi et al., 2011] (Figure 3b and Figure S5 in the supporting information), suggesting similar con- trols on late Holocene centennial-scale temperature at these sites, desGIte seasonal and elevation differences.