Articles | Volume 18, issue 12
Biogeosciences, 18, 3539–3564, 2021
Biogeosciences, 18, 3539–3564, 2021

Research article 17 Jun 2021

Research article | 17 Jun 2021

High-resolution 14C bomb peak dating and climate response analyses of subseasonal stable isotope signals in wood of the African baobab – a case study from Oman

Franziska Slotta et al.

Data sets

Normalized 14C activity ratios (F14C), tree-ring width indices (RWI) and subseasonal δ13C and δ18O of tree-ring cellulose of an African baobab (Adansonia digitata) tree from Oman Franziska Slotta, Lukas Wacker, Frank Riedel, Karl-Uwe Heußner, Kai Hartmann, Gerhard Helle

Short summary
The African baobab is a challenging climate and environmental archive for its semi-arid habitat due to dating uncertainties and parenchyma-rich wood anatomy. Annually resolved F14C data of tree-ring cellulose (1941–2005) from a tree in Oman show the annual character of the baobab’s growth rings but were up to 8.8 % lower than expected for 1964–1967. Subseasonal δ13C and δ18O patterns reveal years with low average monsoon rain as well as heavy rainfall events from pre-monsoonal cyclones.
Final-revised paper