Using Leng and Marshall's (2004) expression of Kim and O'Neil's (1997) equation, the surface sediment 18O value of 6.2? (core top taken in 1999) and 18O water of 8.1? (average between 1997 and 2001, Table 2) suggests precipitation temperatures of around 23C, higher than the measured mean annual air temperature of 18C.

Rainfall at Addis Ababa has a weighted mean 18O composition of 1.2?, while groundwater values recorded in Ethiopia range from a6.2? to a1.3? (table 2 in Lamb et al., 2000). It seems likely that the oxygen isotope values for the lake surface water (up to 9? VSMOW) result from evaporative enrichment (confirmed by the hydrological balance, Table 1), which is also represented in the high values for the carbonates in the surface sediments (18O 6.2? VPDB).

Using Leng and Marshall?s (2004) expression of Kim and O?Neil?s (1997) equation, the surface sediment 18O value of 6.2? (core top taken in 1999) and 18O water of 8.1? (average between 1997 and 2001, Table 2) suggests precipitation temperatures of around 23C, higher than the measured mean annual air temperature of 18C.

LS07LAHA: corrected age values in chronData

d18O (LS07LAHA): interpretation3_scope: '' has been replaced by 'isotope'

year (MAT87d407967c): The paleoData_values have changed

Column 'addR6dqlwNuk7Ysy1frX', with variable name 'depth', was added to the dataset
Column 'addRB5eoWNwQVntBHvU8', with variable name 'depth', was added to the dataset
Column 'addRkhUSZbQFK9hMkTif', with variable name 'ageEnsemble', was added to the dataset
Column 'addRnIbtaqX8eK3rlR8T', with variable name 'age.rangeLow', was added to the dataset
Column 'addRrS9ZF54H1E0yGKgO', with variable name 'reject', was added to the dataset
Column 'addRrUh6ymrGteUpcdsG', with variable name 'age.rangeHigh', was added to the dataset
Column 'addRXdkVUITEXnwbUAu6', with variable name 'age', was added to the dataset
Column 'LS07LAHA-chron-NA1', with variable name 'depth', was added to the dataset
Column 'LS07LAHA-chron-NA2', with variable name 'age.rangeLow', was added to the dataset
Column 'LS07LAHA-chron-NA3', with variable name 'age.rangeHigh', was added to the dataset
Column 'LS07LAHA-chron-NA4', with variable name 'age', was added to the dataset