A5090726959- Climate variability and models
- Hydrology and Drought Analysis
- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Meteorological Phenomena and Simulations
- Climate change impacts on agriculture
- Marine and coastal ecosystems
- Hydrological Forecasting Using AI
- Atmospheric and Environmental Gas Dynamics
- Water resources management and optimization
- Soil and Water Nutrient Dynamics
- Tropical and Extratropical Cyclones Research
- Data-Driven Disease Surveillance
- Methane Hydrates and Related Phenomena
- Air Quality Monitoring and Forecasting
- Cryospheric studies and observations
- COVID-19 Pandemic Impacts
- Water Quality Monitoring Technologies
- Fish Ecology and Management Studies
- Consumer Retail Behavior Studies
- Coastal and Marine Management
- Energy Load and Power Forecasting
- Plant Water Relations and Carbon Dynamics
- Hydrology and Sediment Transport Processes
- Digital Marketing and Social Media
Pohang University of Science and Technology
2020-2025
Yonsei University
2021-2024
University of Alabama
2018-2023
Pukyong National University
2023
Korea Institute of Ocean Science and Technology
2023
Hanyang University
2023
Seoul National University
2023
City University of Hong Kong
2023
Convergence
2023
Advanced Institute of Convergence Technology
2022
Abstract As a natural phenomenon, drought can have devastating impacts on local populations through food insecurity and famine in the developing world, such as Africa. In this study, authors established seasonal hydrologic forecasting system for The is based Climate Forecast System, version 2 (CFSv2), Variable Infiltration Capacity (VIC) land surface model. With set of 26-yr (1982–2007) hindcasts run at 0.25°, probabilistic forecasts are validated using 6-month Standard Precipitation Index...
Abstract Despite recent advances in land surface modeling and remote sensing, estimates of the global water budget are still fairly uncertain. This study aims to evaluate Amazon basin based on several state-of-the-art model (LSM) outputs. Water variables (terrestrial storage TWS, evapotranspiration ET, runoff R, base flow B) evaluated at scale using both sensing situ data. Meteorological forcings a 3-hourly time step 1° spatial resolution were used run 14 LSMs. Precipitation datasets that...
Abstract This study introduces “Google Trends” as a social data source in monitoring and modeling the dynamics of drought awareness during 2011–17 California drought. In this study, is defined operationalized relative search interest activities within California, using term “drought” from Google Trends. First, characterized duration–intensity curve with other historical droughts for comparative purposes, 12-month standard precipitation index (1895–2017). Second, potential triggers peaks are...
Abstract To assess the influence of Atlantic tropical cyclones (TCs) on eastern U.S. drought regime, Variable Infiltration Capacity (VIC) land surface hydrologic model was run over United States forced by North American Land Data Assimilation System phase 2 (NLDAS-2) analysis with and without TC-related precipitation for period 1980–2007. A defined in terms soil moisture as a prolonged below percentile threshold. Different duration droughts were analyzed—short term (longer than 30 days) long...
Abstract We assess uncertainties in the influence of sea surface temperatures on annual meteorological droughts over contiguous U.S. within a Bayesian approach. Observational data for 1901–2012 indicate that negative phase Pacific Decadal Oscillation (PDO) and El Niño–Southern (ENSO) elevated drought risk southern U.S., such 4 year return period event becomes 3 event, while positive Atlantic Multidecadal has weak influence. In recent decades, impacts phases PDO ENSO have weakened shifted...
Abstract. The analysis of the spatial and temporal patterns low flows as well their generation mechanisms over large geographic regions can provide valuable insights understanding for climate change impacts, regional frequency analysis, risk assessment extreme events, decision-making regarding allowable withdrawals. goal this paper is to examine nonstationarity in flow across eastern US explore potential anthropogenic influences or drivers. We use nonparametric tests identify abrupt gradual...
Drought is a creeping climatological phenomenon with persistent precipitation deficits. Unlike rapid onset natural hazards such as floods and wildfires, the intangible gradual characteristics of drought cause lack social response during onset. The level awareness local increases rapidly through mass media reports online information searching activities when reaches its peak severity. This high drives concerns for water shortage support policy. However, spatiotemporal patterns national-scale...
Abstract Although interannual streamflow variability is primarily a result of precipitation variability, temperature also plays role. The relative weakness the effect at annual time scale hinders understanding, but may belie substantial importance on climatic scales. Here we develop and evaluate simple theory relating variations evapotranspiration ( E ) to those P temperature. based extensions Budyko water‐balance hypothesis, Priestley‐Taylor for potential ), linear model basin storage....
The Southeast (SE) U.S. has experienced several severe droughts over the past 30 years, with most recent drought during 2006–2008 causing agricultural impacts of $1 billion. However, mechanisms that lead to region and their persistence have been poorly understood due region's humid coastal environment its complex climate. In this study, we carry out a multiscale analysis for SE 1979–2008 using North American Regional Reanalysis (NARR) identify conditions associated contrast those pluvials....
Abstract Earthquake insurance can be a useful tool to build more sustainable societies and disaster-resilient communities. However, the coverage is not common in many countries. This article aims contribute literature through an empirical analysis of online interest earthquake Google Trends. The proposed methodology implies move from top-down conceptual approach bottom-up/data-enabled one. It allows us explore potential triggers dynamic patterns at daily time-scale lens Big Data. In order...
The Effective Drought Index (EDI) is designed to monitor and characterize the drought condition at a daily scale, using last 30 years of precipitation records as climatic yardstick. A critique EDI that behavior index depends on reference period, making comparisons values difficult over long record period. Here, self-calibrating (scEDI) calculated 244-year (1777–2020) in Seoul, Republic Korea. scEDI evaluated by comparing with damage reports from Annals Joseon Dynasty (1807–1907) relevant...
Drought is a pervasive natural hazard, which can profoundly affect ecosystems and societies globally. To strengthen the global community's resilience to droughts, multi-dimensional understanding of drought awareness imperative. Here we investigate at local (awareness droughts in affected country), remote other countries), levels from non-exposed countries). This study uses relevant search activity volumes country as proxy national-level awareness. We find that recent decade has experienced...
The latest drought to hit the Midwestern (MW) US region, in 2012, was driven by least summer precipitation for last three decades with $20 billion agriculture losses. For forecast skill Pacific and Atlantic sea surface temperature (SST) anomalies low MW is remarkably good some National Multi-Model Ensemble (NMME) models, but this not generally repeated other years, models predicting extreme wet anomalies, despite SST anomalies. In order diagnose origins of limited NMME we use singular value...
© 2018 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).A supplement to article is available online (10.1175/BAMS-D-17-0104.2)
Abstract. Marine phytoplankton play a crucial role in the ocean’s food web, marine ecosystems, and carbon cycles. Their responses to external forcing vary across species, community shifts can have important implications for their roles Earth’s system. Here, we find that communities Sub-Polar North Atlantic shift towards smaller species under greenhouse warming is not easily recovered even CO2 removal scenarios. Despite negative emissions, persistent collapse of larger-celled diatom...