Seminar by Dr. Gokhan Danabasoglu

Atlantic Meridional Overturning Circulation:
Low-Frequency Variability and Model Representation

The Atlantic meridional overturning circulation (AMOC) is thought to play a major role in decadal and longer time-scale climate variability as well as in prediction of the earth’s future climate on these time scales. However, because only rather short records of continuous observational estimates of AMOC transports are available at very limited locations and only for the recent period, support for such a prominent role for AMOC primarily comes from model simulations.

Jasmine - Seminar Room (1010), 10th floor, M Building

Seminar by Dr. Yun-Young Lee

Two Types of California Central Valley Summer Heat waves

Understanding the mechanisms of how Californian Central Valley (CCV) extreme heat waves develop is very important as the events have major impacts on the economy and human safety. This study diagnoses the temporal and spatial evolution as well as the thermodynamics and dynamics of Large Scale Meteorological Patterns (LSMPs) during extreme CCV heat waves.

Jasmine - Seminar Room (1010), 10th floor, M Building

Seminar by Prof. Christopher J. Bae

Paleoenvironmental Influences on the Earliest Peopling of the Japanese Archipelago

During major glacial periods when sea levels were substantially lower the main islands of the Japanese archipelago (Honshu, Kyushu, Shikoku) that form paleo-Honshu would have been connected to the Asian landmass at the southern end of the Korean peninsula. Hokkaido has been connected to the Asian landmass more frequently through Sakhalin, but deeper ocean trenches suggests very irregular connections between Hokkaido and paleo-Honshu.

Jasmine - Seminar Room (1010), 10th floor, M Building

Seminar by Dr. Ji-Woong Yang

Global- and regional paleoclimate reconstructions from greenhouse gas and borehole temperature of polar ice cores

According to IPCC report, the Earth’s climate has been warming rapidly since the 20thcentury, and the current warming trend is expected to continue in the upcoming decades. Therefore, the “paleoclimatologists” are searching for hints from the history of the Earth’s climate. The paleoclimate proxy archives have recorded the temporal evolution of the climate and environment in local to global scale.

Jasmine - Seminar Room (1010), 10th floor, M Building

Seminar by Prof. Kyoung-nam Jo

Paleoclimatic investigations using carbonate speleothems in South Korea

A cave is defined as a naturally formed underground cavity large enough for human entry. According to the formation processes, caves are usually divided into solution, volcanic, glacier, crevice, and erosion caves, etc. Among solution types, limestone caves commonly include various types of carbonate speleothems. The speleothems in limestone caves are mostly composed of carbonate minerals with calcite, aragonite, or a combination of two.

Jasmine - Seminar Room (1010), 10th floor, M Building

Seminar by Prof. Fei-Fei Jin

On ENSO Theory

The fundamental dynamical mechanisms of the El Nino-Southern Oscillation (ENSO)phenomenon have been extensively studied since Bjerknes envisioned ocean-atmosphere interaction in the equatorial Pacific as its main cause.

Jasmine - Seminar Room (1010), 10th floor, M Building

Seminar by Prof. Vanessa M. Hayes

Identifying the Garden of Eden

Archaeological and genetic data concur that anatomically modern humans (AMHs or Homo sapiens sapiens) arose in Africa some 200 thousand years ago (ka). However, the exact birthplace and the reasons for subsequent migrations remain elusive. While the oldest AMH skeletal remains suggest an east African origin, southern Africa is home to contemporary populations representing the earliest branch of human phylogeny.

Jasmine - Seminar Room (1010), 10th floor, M Building

Seminar by Dr. Hanna Lee

The risks of changing cryospheric environments on nature and society

Cryosphere is where water is in its solid form. The cryosphere is changing faster than global mean under current and future warming scenarios and has great consequences to the feedback cycles of global climate. Among them, permafrost exists on land and is the only cryospheric environment where people live. Thawing permafrost, therefore, has risks to existing human infrastructure as well as lives of people depending on the landscape. I will present ongoing and future research topics at NORCE Climate related to cryospheric research.

Jasmine - Seminar Room (1010), 10th floor, M Building

Seminar by Dr. Øyvind Paasche

How can we tell how glaciers vary over time?

Mountain glaciers are still abundant in high-latitude, high-altitude areas on Earth. Their presence in the landscape, and dynamic behaviour, are intimately linked to the local climate. From observations we know that relatively minor shifts in temperature and precipitation are quickly manifested in the mass balance budget of the glacier, which can result in a glacier advance or retreat. Glaciers are consequently among the most trusted indicators of global climate change and therefore a valued proxy.

Jasmine - Seminar Room (1010), 10th floor, M Building