A5082594695- Oceanographic and Atmospheric Processes
- Geology and Paleoclimatology Research
- Climate variability and models
- Coral and Marine Ecosystems Studies
- Marine and fisheries research
- Marine and coastal ecosystems
- Tropical and Extratropical Cyclones Research
- Geological and Geophysical Studies
- Meteorological Phenomena and Simulations
- Marine animal studies overview
- Coastal and Marine Dynamics
- Geological formations and processes
- GNSS positioning and interference
- Marine Biology and Ecology Research
- Geomagnetism and Paleomagnetism Studies
- Seismic Imaging and Inversion Techniques
- Geological and Geophysical Studies Worldwide
- Geophysics and Gravity Measurements
- Coastal wetland ecosystem dynamics
- Atmospheric and Environmental Gas Dynamics
- Methane Hydrates and Related Phenomena
- Tree-ring climate responses
- Marine and coastal plant biology
Earth Observatory of Singapore
2015-2024
Nanyang Technological University
2015-2023
William Paterson University
2020-2023
University of Arizona
2023
University of the Philippines Diliman
2021
Abstract On 8 November 2013, Typhoon Haiyan impacted the Philippines with estimated winds of approximately 314 km h-1 and an associated 5–7-m-high storm surge that struck Tacloban City surrounding coast shallow, funnel-shaped San Pedro Bay. killed more than 6,000 people, superseding Tropical Storm Thelma 1991 as deadliest typhoon in Philippines. Globally, it was tropical cyclone since Nargis hit Myanmar 2008. Here, we use field measurements, eyewitness accounts, video recordings to...
Abstract. The response of the hydrological cycle to anthropogenic climate change, especially across tropical oceans, remains poorly understood due scarcity long instrumental temperature and records. Massive shallow-water corals are ideally suited reconstructing past oceanic variability as they widely distributed tropics, rapidly deposit calcium carbonate skeletons that continuously record ambient environmental conditions, can be sampled at monthly annual resolution. Climate reconstructions...
Abstract The Pacific Decadal Oscillation (PDO) is a complex aggregate of different atmospheric and oceanographic forcings spanning the extratropical tropical Pacific. PDO has widespread climatic societal impacts, thus understanding processes contributing to variability critical. Distinguishing PDO‐related particularly challenging in due dominance El Niño–Southern influence anthropogenic warming signals. Century‐long western records subannual sea surface temperature (SST) salinity (SSS),...
Abstract The Indo‐Pacific coral Diploastrea heliopora reveals regional multidecadal‐ to centennial‐ scale climate variability using carbonate δ 18 O (δ c ) as a combined proxy for sea surface temperature (SST) and salinity (SSS). However, assess the coral's full potential in resolving climatic events, an independent SST would be more advantageous. We examined both Sr/Ca of against adjacent Porites lobata core collected from northeast Luzon, Philippines. Winter data show significant...
Abstract The Luzon Strait (LS) hosts the largest transport of water between Western Pacific Ocean (WPO) and South China Sea (SCS). through strait, dominated by westward propagation Kuroshio Intrusion, influences climate circulation SCS. While numerical models have investigated interannual variability subsequent exchange across LS, a lack long‐term on‐site records prevents general consensus on rates, variability, drivers. Corals offer high‐resolution, continuous histories radiocarbon (Δ 14 C)...
Abstract Reconstructions of key climate parameters prior to anthropogenic influences serve constrain decadal multicentury natural variability. In the western Pacific region, relatively few reconstructions exist north Western Warm Pool (WPWP), a region critical global climate. this study, we collected coral core from Houbihu, southern Taiwan, and generated 225‐year reconstruction annual wintertime sea surface temperature, dry season salinity, wet rainfall records derived paired Porites Sr/Ca...
Abstract Cloud and convective parameterizations strongly influence uncertainties in equilibrium climate sensitivity. We provide a proof‐of‐concept study to constrain these perturbed parameter ensemble of the atmosphere‐only version Goddard Institute for Space Studies Model E2.1 simulations by evaluating model biases present‐day runs using multiple satellite climatologies comparing simulated δ 18 O precipitation (δ p ), known be sensitive parameterization schemes, with global database...
Constraining past variability in ocean conditions the Western Pacific Warm Pool (WPWP) and examining how it has been influenced by El-Niño Southern Oscillation (ENSO) is critical to predicting these systems may change future. To characterize spatiotemporal of WPWP ENSO during three decades, we analyzed climate proxies using coral cores sampled from Porites spp. Kosrae Island (KOS) Woleai Atoll (WOL) Federated States Micronesia. Coral skeleton samples drilled along major growth axis were for...
Abstract Proxy reconstructions from the mid‐Holocene (MH: 6,000 years ago) indicate an intensification of West African Monsoon and a weakening South American Monsoon, primarily resulting orbitally‐driven insolation changes. However, model studies that account for MH orbital configurations greenhouse gas concentrations can only partially reproduce these Most do not remarkable vegetation changes occurred during MH, in particular over Sahara, precluding realistic simulations period. Here, we...
Abstract. While paleoclimate simulations have been a priority for Earth system modelers over the past three decades, little attention has paid to period between mid-Holocene and Last Millennium, although this is an important emergence of complex societies. Here, we consider climate 2500 BP (550 BCE), when compared late preindustrial time, greenhouse gas concentrations were slightly lower, orbital forcing led stronger seasonal cycle in high latitude insolation. To capture influence land cover...
Abstract The flow of Pacific water into the Indian Ocean via South China Sea (SCS) and Maritime Continent (MC) plays an important role in ocean thermohaline circulation providing only low‐latitude pathway for inter‐ocean exchange heat salt. transport SCS Indonesian throughflows is modulated by East Asian monsoon major climate modes associated with Oceans. As indicator surface layer buoyancy, sea salinity (SSS) critical to rates but instrumental records SSS are short sparse. Using empirical...
<p>The Green Sahara Period, spanning about 11,500 to 5,000 years ago, offers an opportunity test the ability of climate models simulate large-scale changes in northern African through strengthening West Monsoon. In this study, we evaluate performance four simulating mid-Holocene (6,000 BP), namely – EC-Earth, iCESM, CCSM4-Toronto, and GISS ModelE2.1-G. Two scenarios are considered for each model a standard PMIP scenario simulated with orbital parameters greenhouse...
Abstract. The response of the hydrological cycle to anthropogenic climate change, especially across tropical oceans, remains poorly understood due scarcity long instrumental temperature and records. Massive shallow-water corals are ideally suited reconstructing past oceanic variability as they widely distributed tropics, rapidly deposit calcium carbonate skeletons that continuously record ambient environmental conditions, can be sampled at monthly annual resolution. Most coral-based...
<p>The Indonesian and South China Sea throughflows play an important role in global ocean circulation as the only low-latitude pathway for exchange of heat salt between Pacific Indian oceans. This transport is modulated by different climate systems including El Niño Southern Oscillation (ENSO), Decadal (PDO) East Asian Monsoon. The interactions these across Southeast region are still being understood, particularly sea surface salinity (SSS) inhibiting flow from...
Proxy reconstructions from the mid-Holocene (MH: 6,000 years ago) indicate an intensification of West African Monsoon and a weakening South American Monsoon, primarily resulting orbitally-driven insolation changes. However, model studies that account for MH orbital configurations greenhouse gas concentrations can only partially reproduce these Most do not remarkable vegetation changes occurred during MH, in particular over Sahara, precluding realistic simulations period. Here, we study...
<p>Much of the inter-model spread in equilibrium climate sensitivity (ECS) estimates is attributed to cloud and convective parameterizations which model water vapor feedbacks. These also directly influence isotopes, may be retrieved not only from modern observations, but a plethora paleoclimate archives that represent much broader range variability than available measurements. And thus, these isotope tracers can used constrain ECS by flagging unrealistic parts parameterization...