A5030737137- Climate variability and models
- Meteorological Phenomena and Simulations
- Tropical and Extratropical Cyclones Research
- Oceanographic and Atmospheric Processes
- Atmospheric and Environmental Gas Dynamics
- Atmospheric aerosols and clouds
- Cryospheric studies and observations
- Ocean Waves and Remote Sensing
- Atmospheric Ozone and Climate
- Precipitation Measurement and Analysis
- Marine and coastal ecosystems
- Atmospheric chemistry and aerosols
- Arctic and Antarctic ice dynamics
- Remote Sensing and Land Use
- Hydrology and Drought Analysis
- Plant Water Relations and Carbon Dynamics
- Climate change impacts on agriculture
- Wind and Air Flow Studies
- Geophysics and Gravity Measurements
- Geology and Paleoclimatology Research
- Remote Sensing in Agriculture
- Hydrology and Watershed Management Studies
- Aeolian processes and effects
- Fire effects on ecosystems
- Environmental Changes in China
Pusan National University
2015-2024
Institute for Basic Science
2018-2024
IBS Center for Climate Physics
2022-2024
APEC Climate Center
2024
Collaboration for Australian Weather and Climate Research
2022
Korea Institute of Ocean Science and Technology
2019
University of Hawaiʻi at Mānoa
2019
Pusan National University Yangsan Hospital
2013
Abstract Prediction of Indian summer monsoon rainfall (ISMR) is at the heart tropical climate prediction. Despite enormous progress having been made in predicting ISMR since 1886, operational forecasts during recent decades (1989–2012) have little skill. Here we show, with both dynamical and physical–empirical models, that this failure largely due to models’ inability capture new predictability sources emerging global warming, is, development central-Pacific El Nino-Southern Oscillation...
Monsoon rainfall has profound economic and societal impacts for more than two-thirds of the global population. Here we provide a review on past monsoon changes their primary drivers, projected future changes, key physical processes, discuss challenges present modeling outlooks. Continued warming urbanization over century already caused significant rise in intensity frequency extreme events all regions (high confidence). Observed mean vary by region with decadal variations. Northern...
Abstract The increasing frequency of heatwaves over East Asia (EA) is impacting agriculture, water management, and people’s livelihood. However, the effect humidity on high-temperature events has not yet been fully explored. Using observations future climate change projections conducted with latest generation Earth System models, we examine mechanisms dry moist EA. In heatwave region, anticyclonic circulation amplified after onset under influence convergence anomalous wave activity flux...
Multi-year El Niño events induce severe and persistent floods droughts worldwide, with significant socioeconomic impacts, but the causes of their long-lasting behaviors are still not fully understood. Here we present a two-way feedback mechanism between tropics extratropics to argue that extratropical atmospheric variability associated North Pacific Oscillation (NPO) is key source multi-year events. The NPO during boreal winter can trigger Central subsequent winter, which excites...
A climate shift in the mid‐1990s summertime circulation over east Asia is described and dynamics associated with are discussed. The Asian summer monsoon has a large interdecadal variability as well interannual variability. It suggested herein that undergone decadal change mid‐1990s. After mid‐1990s, there been significant decrease strength of zonal winds near subtropical jet distinct increase precipitation southeastern part China. This could be understood barotropic response to steady...
ABSTRACT How boreal summer intraseasonal oscillation ( BSISO ) modulates the probability and spatial distributions of extreme rainfall occurrence over populous southern China was examined, using newly proposed indices two high‐resolution rain‐gauge‐based datasets in China. The density function May–August is skewed towards large values phases 2–4 first component 5–7 second life cycle, during which events at 75th (90th) percentile increases by 30–50% (over 60%) relative to non‐ period....
We investigate the future changes of Asian-Australian monsoon (AAM) system projected by 20 climate models that participated in phase five Coupled Model Intercomparison Project (CMIP5). A metrics for evaluation model's performance on AAM precipitation climatology and variability is used to select a subset seven best models. The CMIP5 are more skillful than CMIP3 terms metrics. projections made selected multi-model mean suggest following end 21st century. (1) total (as well as land oceanic...
Abstract Future greenhouse warming is expected to influence the characteristics of global monsoon systems. However, large regional uncertainties still remain. Here we use 16 Coupled Model Intercomparison Project Phase 6 (CMIP6) models determine how length summer rainy season and precipitation extremes over Asian domain will change in response warming. Over East Asia simulate on average earlier onset later retreat; whereas India, retreat occur later. The model simulations also show an...
This paper compares different artificial intelligence (AI) models in order to develop the best crop yield prediction model for Midwestern United States (US). Through experiments examine effects of phenology using three periods, we selected July–August (JA) database as months predict corn and soybean yields. Six AI are tested this research. Then, a comprehensive objective comparison is conducted between models. Particularly deep neural network (DNN) model, performed an optimization process...
Abstract Future change in summertime rainfall under a warmer climate will impact the lives of more than two-thirds world’s population. However, future changes duration rainy season affected by regional characteristics are not yet entirely understood. We try to understand length as well amounts precipitation, and related processes over monsoon domains using phase six Coupled Model Intercomparison Project archive. Projections reveal extensions most domains, except American monsoon. Enhancing...
Abstract By analyzing observation-based high-resolution surface air temperature (SAT) data over the Asian monsoon region (here called “monsoon Asia”) for 1981–2007, modulation by boreal summer intraseasonal oscillation (BSISO) of heat wave (HW) occurrence is examined. Strong SAT variability and a high probability HW on time scales are found consistently in densely populated regions central India (CI), Yangtze River valley China (YR), Japan (JP), Korean Peninsula (KP). The two distinct BSISO...
Abstract The Arctic warming response to greenhouse gas forcing is substantially greater than the rest of globe. It has been suggested that this phenomenon, commonly referred as amplification, and its peak in boreal fall winter result primarily from lapse‐rate feedback, which associated with vertical structure tropospheric warming, rather sea‐ice albedo operates mainly summer. However, future climate model projections show consistently an overall reduction region leads a gradual weakening...
Compound drought and heatwaves (DHW) events have much attention due to their notable impacts on socio-ecological systems. However, studies the mechanisms of DHW related land-atmosphere interaction are not still fully understood in regional aspects. Here, we investigate drastic increases from 1980 2019 over northern East Asia, one strong regions. Heatwaves occurring severely dry conditions increased after late 1990s, suggesting that Asia highly likely be compound closely drought. Moreover,...
Most future projections conducted with coupled general circulation models simulate a non-uniform Indian Ocean warming, warming hotspots occurring in the Arabian Sea (AS) and southeastern (SEIO). But little is known about underlying physical drivers. Here, we are using suite of large ensemble simulations Community Earth System Model 2 to elucidate causes warming. Strong negative air-sea interactions Eastern responsible for weakening zonal sea surface temperature gradient, resulting slowdown...
The warm-temperate regions of the globe characterized by dry summers and wet winters (Mediterranean climate; MED) are especially vulnerable to climate change. potential impact on water resources, ecosystems human livelihood requires a detailed picture future changes in this unique zone. Here we apply probabilistic approach quantitatively address how why geographic distribution MED will change based latest-available projections for 21st century. Our analysis provides, first time, robust...
Predictions of changes the land monsoon rainfall (LMR) in coming decades are vital importance for successful sustainable economic development. Current dynamic models, though, have shown little skill decadal prediction Northern Hemisphere (NH) LMR (NHLMR). The physical basis and predictability such predictions remain largely unexplored. Decadal change NHLMR reflects total NH continental precipitation, tropical general circulation, regional over northern Africa, India, East Asia, North...