Helena Öberg

Climate Change in Southern and Eastern Africa During the Past Millennium and its Implications for Societal Development

Karin Holmgren, Helena Öberg · Environment Development and Sustainability · 2006 · 94 citations

Natural Sciences, Earth Sciences, Environmental Sciences +17

The development of the ancient irrigation system at Engaruka, northern Tanzania: physical and societal factors

Lars-Ove Westerberg, Karin Holmgren, Lowe Börjeson et al. · Geographical Journal · 2010 · 34 citations

Humanities, Geography, History +17

Environmental variability in northern Tanzania from AD 1000 to 1800, as inferred from diatoms and pollen in Lake Duluti

Helena Öberg, Elin Norström, Maria Malmström Ryner et al. · Palaeogeography Palaeoclimatology Palaeoecology · 2013 · 15 citations

Natural Sciences, Earth Sciences, Environmental Sciences +13

A diatom record of recent environmental change in Lake Duluti, northern Tanzania

Helena Öberg, Thorbjørn Joest Andersen, Lars-Ove Westerberg et al. · Journal of Paleolimnology · 2012 · 12 citations

Natural Sciences, Earth Sciences, Ecology +17