Korea Polar Research Institute

Inter-hemispheric contrast in the sensitivity of polar amplification to sea-ice coverage conditions

Polar amplification of near-surface warming can have substantial global implications. However, large uncertainties remain regarding its future changes and the underlying mechanisms. Here we show substantial inter-hemispheric contrast in the climate state dependence of polar ampli...

Sea Ice Meltwater Alters Prokaryotic Community Structure and Interaction Networks in the Amundsen Sea, Antarctica

The Amundsen Sea is increasingly influenced by meltwater input from retreating glaciers, ice-shelves, and seasonal sea-ice, yet the responses of Antarctic prokaryotic communities to meltwater-associated environmental change remain poorly understood. Directly resolving microbial r...

Free tropospheric halogen oxidation drives mercury deposition in the Asia Pacific region

Asian outflow represents 50% of global anthropogenic mercury emissions, but the atmospheric oxidation pathways controlling its deposition to the adjacent Pacific Ocean remain poorly constrained. Using multi-year snow and atmospheric mercury isotope measurements from Mt. Halla, Je...

A spatially resolved dataset of stable water isotopes in monthly precipitation over Jeju Island, Korea (2000–2003)

Abstract. Spatially and temporally resolved observations of precipitation water isotopes are essential for quantifying groundwater recharge, constraining hydroclimate variability, and calibrating paleoclimate proxies, yet such datasets remain scarce for monsoon-influenced volcani...

Episodic High‐Latitude Occurrence of Walleye Pollock ( Gadus chalcogrammus ) in the Central Arctic Ocean Associated With Warm Subsurface Conditions: Multi‐Year Environmental DNA and Larval Evidence

ABSTRACT Episodic high‐latitude occurrences of subarctic fish due to Arctic warming present significant challenges for managing high‐latitude ecosystems. In this study, we present four consecutive years (2021–2024) of integrated environmental DNA (eDNA) monitoring and larval surv...

Drivers governing the seasonality of new particle formation in the Arctic

New particle formation (NPF) is the phenomenon wherein gaseous precursors form critical clusters of barely a few nanometres in diameter, after which, under favourable conditions, these particles can grow to climate-relevant sizes. Here we present measurements from 2022 to 2024 of...

Observational and numerical assessment of meteorological characteristics and climate variabilities over the Antarctic Peninsula in recent decades

Abstract The Antarctic Peninsula (AP) exhibits pronounced spatial variability in recent climate trends, with contrasting temperature changes between the West Antarctic Peninsula (WAP) and East Antarctic Peninsula (EAP). This study provides an observational and numerical assessmen...

The parent bodies of Ryugu and Ivuna formed before those of other carbonaceous chondrites

Most carbonaceous chondrite (CC) meteorites contain abundant chondrules, millimeter-scale spherical inclusions of previously molten material. Ivuna-type carbonaceous chondrites (CIs) do not contain chondrules, nor do samples of the carbonaceous asteroid Ryugu. CIs and Ryugu share...

Effects of the complexity of the ocean model on the sea ice data assimilation in a coupled sea ice-ocean model

Abstract The ocean plays a crucial role in the formation and melting of sea ice, which also affects the performance of sea ice data assimilation. To evaluate how ocean model complexity affects the assimilation performance, the sea ice model is separately coupled with two distinct...

Immunogenic Cell Death Induced by EEO in Breast Cancer Cells Promotes Dendritic Cell Activation in a CRT-Dependent Manner

Cancer immunotherapy faces significant challenges in treating “cold” tumors, which respond poorly to current strategies. Breast cancer is a major cause of cancer-related mortality in women and is a representative immunosuppressive cold tumor. The luminal A subtype of breast cance...

Delayed submarine caldera subsidence creates extreme tsunami hazard

The 2022 Hunga volcano eruption generated one of the largest and most destructive volcanic tsunamis ever recorded. We interpret the timing, nature and relative hazard of volcanic-tsunamigenic processes by combining geophysical, oceanographic, atmospheric, and eye-witness observat...

Winter sediment resuspension in a submarine canyon drives the offshore export of toxigenic Alexandrium catenella cysts

Abstract Harmful algal blooms (HABs) caused by the toxigenic dinoflagellate Alexandrium catenella recur regularly in the Lower St. Lawrence Estuary (LSLE, eastern Canada). Using quantitative polymerase chain reaction (qPCR) to detect A. catenella DNA as a proxy for cyst abundance...