NOAA/WDS Paleoclimatology - Lake Malawi 700 Year Biogenic Silica Data

Domaine:

climate

Créateur:

Joh

Éditeur:

NOA

Hôte:

Biogenic silica profiles in varved sediments from northern Lake Malawi (Nyasa), East Africa, span the past 700 yr and reflect past primary productivity in the overlying waters. On a centennial scale this has been influenced by lake level and a consequent shift in the location of high diatom productivity within the lake basin. Primary production was higher during the Little Ice Age, an arid period from about A.D. 1570 to 1850, when lake level was about 120 m lower than during the previous three centuries or the past 150 yr. The data are biogenic silica (as % SiO2) versus age from six cores in the north basin of Lake Malawi, at the southern end of the East African Rift Valley.

NOAA/WDS Paleoclimatology - Lake Tanganyika Deglacial Biogenic Silica and TOC Data

The timing and magnitude of abrupt climate change in tropical Africa during the last glacial termina

NOAA/WDS Paleoclimatology - Lake Malawi 700 Year TEX86 Surface Water Temperature Reconstruction

We have applied the TEX86 paleothermometer to produce a surface water temperature record for Lake Ma

NOAA/WDS Paleoclimatology - Lake Malawi 1.2 Million Year Ostracod and Geochemical Lake Level Data

Long paleoecological records are critical for understanding evolutionary responses to environmental

NOAA/WDS Paleoclimatology - Lake Malawi 24000 Year TEX86 Surface Temperature Reconstruction

The role of the tropics in global climate change is actively debated, particularly in regard to the

NOAA/WDS Paleoclimatology - Lake Nyamogusingiri, Uganda 800 Year Multiproxy Lake Sediment Data

The exploitation of lakes has led to large-scale contemporary impacts on freshwater systems, largely

NOAA/WDS Paleoclimatology - Lake Malawi, East Africa 1.3 Million Year TEX86 Paleotemperature

African climate is generally considered to have evolved towards progressively drier conditions over