A5000082104- Flood Risk Assessment and Management
- Hydrology and Watershed Management Studies
- Water resources management and optimization
- Water-Energy-Food Nexus Studies
- Tropical and Extratropical Cyclones Research
- Coastal wetland ecosystem dynamics
- Geological formations and processes
- Coastal and Marine Management
- Global Energy and Sustainability Research
- Geophysics and Gravity Measurements
- Climate variability and models
- Oceanographic and Atmospheric Processes
- Land Use and Ecosystem Services
- Methane Hydrates and Related Phenomena
- Climate Change, Adaptation, Migration
- Hydrological Forecasting Using AI
- Ocean Waves and Remote Sensing
- Climate change impacts on agriculture
- Marine and Offshore Engineering Studies
- Coastal and Marine Dynamics
- Geological and Geophysical Studies
- Disaster Management and Resilience
- Arctic and Antarctic ice dynamics
- Underwater Acoustics Research
- Hydrology and Sediment Transport Processes
The Graduate Center, CUNY
2015-2024
City University of New York
2015-2018
CUNY Advanced Science Research Center
2015-2018
City College of New York
2013-2018
CrossRoads Extremity Systems (United States)
2015-2016
Lamont-Doherty Earth Observatory
2010-2012
Columbia University
2011-2012
Significance Humans alter the water cycle by constructing dams and through withdrawals. Climate change is expected to additionally affect supply demand. Here, model analyses of climate direct human impacts on terrestrial are presented. The results indicate that impact man-made reservoirs withdrawals long-term global balance small. However, in some river basins, interventions significant. In parts Asia United States, effects exceed for moderate levels warming. This study also identifies areas...
Deltas are growing centers of risk Population growth, urbanization, and rising sea levels placing populations living in delta regions under increased risk. The future resiliency potential for adaptation by these depend on a number socioeconomic geophysical factors. Tessler et al. examined 48 deltas from around the globe to assess changes regional vulnerability (see Perspective Temmerman). Some countries with high gross domestic product will be initially more resilient changes, because they...
Abstract Crop irrigation is responsible for 70% of humanity's water demand. Since the late 1990s, expansion irrigated areas has been tapering off, and this trend expected to continue in future. Future demand (IWD) is, however, subject large uncertainties due anticipated climate change. Here, we use a set seven global hydrological models (GHMs) quantify impact projected change on IWD currently by end century, assess resulting arising from both GHMs projections. The ensemble projections...
The sensitivity of Earth’s wetlands to observed shifts in global precipitation and temperature patterns their ability produce large quantities methane gas are key change questions. We present a microwave satellite-based approach for mapping fractional surface water (FW) globally at 25-km resolution. employs land cover-supported, atmospherically-corrected dynamic mixture model applied 20+ years (1992–2013) combined, daily, passive/active remote sensing data. resulting product, known as...
The impacts of global climate change on different aspects humanity’s diverse life-support systems are complex and often difficult to predict. To facilitate policy decisions mitigation adaptation strategies, it is necessary understand, quantify, synthesize these climate-change impacts, taking into account their uncertainties. Crucial an understanding how in sectors overlap, as overlapping increase exposure, lead interactions likely raise pressure. As a first step we develop herein framework...
Tropical delta regions are at risk of multiple threats including relative sea level rise and human alterations, making them more vulnerable to extreme floods, storms, surges, salinity intrusion, other hazards which could also increase in magnitude frequency with a changing climate. Given the environmental vulnerability tropical deltas, understanding interlinkages between population dynamics change these is crucial for ensuring efficient policy planning progress toward social ecological...
Modern deltas are dependent on human-mediated freshwater and sediment fluxes. Changes to these fluxes impact delta biogeophysical functioning affect the long-term sustainability of landscapes for human natural systems. Here we present contemporary estimates mean balance relative sea level rise across 46 global deltas. We model scenarios future water resource management schemes hydropower infrastructure in upstream river basins explore how changing Model results show that fluxes,...
<strong class="journal-contentHeaderColor">Abstract.</strong> Future changes in runoff can have important implications for water resources and flooding. In this study, projections from ISI-MIP (Inter-sectoral Impact Model Intercomparison Project) simulations forced with HadGEM2-ES bias-corrected climate data under the Representative Concentration Pathway 8.5 been analysed differences between impact models. Projections of change a baseline period (1981â2010) to future (2070â2099) 12...
Construction of dams and the resulting water impoundments are one most common engineering procedures implemented on river systems globally; yet simulating reservoir operation at regional global scales remains a challenge in human–earth system interactions studies. Developing general operating scheme suitable for use large-scale hydrological models can improve our understanding broad impacts operation. Here we present novel artificial neural networks to map input/output relationships actual...
Metrics can inform investors wary of “green washing”
It is broadly recognized that river delta systems around the world are under threat from a range of anthropogenic activities. These activities occur at local scale, regional and watershed global scale. Tools needed to support generalization results case studies in specific deltas. Here, we present methodology for quantitatively constructing an empirical typology change Utilizing database environmental indicators, each associated with increased relative sea-level rise coastal wetland loss,...
Abstract Observations of stratification and currents between June 2007 March 2009 reveal a strong overflow 400- 570-m depth from the Panay Strait into Sulu Sea. The water is derived approximately 400 m deep in South China Temporal mean velocity greater than 0.75 s−1 at 50 above Sill. Empirical orthogonal function analysis mooring time series shows that flow dominated by bottom current with little seasonal variance. does not descend below 1250 Sea but rather settles high-salinity Sulawesi...
[1] The Sulu Sea, isolated from the neighboring ocean below 570 m, is nearly isothermal 1250 m but with a marked salinity increase depth. source of deep Sea water has been attributed to South China overflowing topographic sill Panay Strait. However, overflow (estimated as 0.32 × 106 m3/sec) an unlikely for saltier water. We propose that ventilation derived south, Sulawesi through Sibutu Passage. between 245 527 mixed and heaved over Passage 234 by energetic tidal environment. Oxygen...
Abstract Observations of early stage, large-amplitude, nonlinear internal waves in the Sulu Sea are presented. Water column displacement and velocity profile time series show passage two solitary-like close to their generation site. Additional observations same made as they propagate through basin. These depression have an estimated maximum amplitude 44 m. Observed wave background stratification used estimate parameters for both a Korteweg–de Vries (K-dV) Joseph solution. analytic model...
Tropical delta regions experience complex population dynamics, which are strongly influenced by socio-economic and environmental factors. They subject to increasing pressure from relative sea-level rise, because of human alterations they becoming more vulnerable extreme floods, storms, surges, salinity intrusion, hazards could also increase in magnitude frequency with a changing climate. In this context, understanding dynamics is crucial for ensuring efficient policy planning progress...
Water security remains a critical global development challenge, compounded by persistent public funding shortfalls. Society urgently needs to identify opportunities for innovative private sector engagement in water solutions. To feasible and impactful solutions, quantitative tools are needed delineate complex environmental socioeconomic challenges prioritize investment opportunity spaces address these challenges. We introduce the first regional-scale maps showing where threats coincide with...