Diffusion: random motions
This series of talks aims to be an introduction to the various processes that affect the This series of talks aims to be an introduction to the various processes that […]
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Model simulations of El Niño
Southern Oscillation (ENSO) are usually evaluated by comparing them to observations using a multitude of metrics. However, this approach can not provide an objective summary metric of model performance. Here we […]
Global lake responses to climate change
Lakes are a critical natural resource that contain a large majority of Earth’s accessible surface freshwater, support important biodiversity and provide many benefits to people around the world. However, lakes […]
Data Science for Social Impact
Artificial intelligence (AI) and big data are bringing innovations to many research fields that have a direct social impact. In this talk, I’d like to share recent efforts on research […]
The Structure of Climate Variability Across Scales
One of the most intriguing facets of the climate system is that it exhibits variability across all temporal and spatial scales; pronounced examples are temperature and precipitation. The structure of […]
Multidecadal variability of North Atlantic climate
Multidecadal variations in North Atlantic sea surface temperatures are linked to areas far beyond that region, via atmospheric teleconnections. We take advantage of one such linkage, to reconstruct multi-decadal variations […]
Revisiting the Mid-Pleistocene Transition
Present descriptions of Quaternary climate assert that after major Northern Hemisphere ice sheets first appeared three million years ago, a steady rhythm of obliquity-driven, 40-ky glacial cycles dominated global climate […]
Modeling Human Dispersal
The genus homo started about 3-2.5 million years ago – likely in the savannas of Eastern Africa. Over the following 2 million years further speciation events occurred and some groups, […]
History of the Development of Numerical Models of the Ocean
In the early 1950’s John von Neumann and Jules Charney carried out the first successful numerical weather forecasts at the Institute of Advanced Study at Princeton. The United States Weather […]
Precipitation Patterns in Korea through the Geostatistical Analysis and the Principal Component Analysis
Most precipitation systems in Korea are highly influenced by the East Asian summer monsoon (Changma) as well as by synoptic scale/mesoscale weather phenomena, and hence have high seasonal variation; they […]