A5083827539- Oceanographic and Atmospheric Processes
- Climate variability and models
- Ocean Waves and Remote Sensing
- Meteorological Phenomena and Simulations
- Tropical and Extratropical Cyclones Research
- Marine and coastal ecosystems
- Arctic and Antarctic ice dynamics
- Atmospheric and Environmental Gas Dynamics
- Geology and Paleoclimatology Research
- demographic modeling and climate adaptation
- Geomagnetism and Paleomagnetism Studies
- Climate Change, Adaptation, Migration
- Ship Hydrodynamics and Maneuverability
- Underwater Acoustics Research
- Geological formations and processes
- Hydrology and Sediment Transport Processes
- Ocean Acidification Effects and Responses
- Plant Water Relations and Carbon Dynamics
- Cryospheric studies and observations
- Ionosphere and magnetosphere dynamics
- Earthquake and Tsunami Effects
- Coral and Marine Ecosystems Studies
- Fluid Dynamics and Turbulent Flows
- Hydrology and Drought Analysis
- Coastal and Marine Management
Hohai University
2019-2024
Ministry of Natural Resources
2020-2024
Ocean University of China
2009-2019
National Marine Environmental Forecasting Center
2017
Woods Hole Oceanographic Institution
2011-2013
The increased concentration of greenhouse gases in the atmosphere from human activities traps heat within climate system and increases ocean content (OHC). Here, we provide first analysis recent OHC changes through 2021 two international groups. world ocean, 2021, was hottest ever recorded by humans, annual value is even higher than last year's record 14 ± 11 ZJ (1 zetta J = 1021 J) using IAP/CAS dataset 16 10 NCEI/NOAA dataset. long-term warming larger Atlantic Southern Oceans other regions...
Abstract The global physical and biogeochemical environment has been substantially altered in response to increased atmospheric greenhouse gases from human activities. In 2023, the sea surface temperature (SST) upper 2000 m ocean heat content (OHC) reached record highs. 0–2000 OHC 2023 exceeded that of 2022 by 15 ± 10 ZJ (1 Zetta Joules = 21 Joules) (updated IAP/CAS data); 9 5 (NCEI/NOAA data). Tropical Atlantic Ocean, Mediterranean Sea, southern oceans recorded their highest observed since...
Changes in ocean heat content (OHC), salinity, and stratification provide critical indicators for changes Earth's energy water cycles. These cycles have been profoundly altered due to the emission of greenhouse gasses other anthropogenic substances by human activities, driving pervasive climate system. In 2022, world's oceans, as given OHC, were again hottest historical record exceeded previous 2021 maximum. According IAP/CAS data, 0-2000 m OHC 2022 that 10.9 ± 8.3 ZJ (1 Zetta Joules = 1021...
Rapid intensification (RI) is an essential process in the development of strong tropical cyclones and a major challenge prediction. RI offshore regions more threatening to coastal populations economies. Although much effort has been devoted studying basin-wide temporal-spatial fluctuations, variations global events remain uncertain. Here, we show that compared with open oceans, where annual counts do not significant changes, areas within 400 km coastline have experienced increase events,...
[1] The winter water mass along the Yellow Sea Trough (YST), especially on western side of trough, is considerably warmer and saltier than ambient shelf mass. This observed tongue-shape hydrographic feature implies existence a along-trough onshore current, often referred to as Warm Current (YSWC). However, YSWC has not been confirmed by direct current measurements therefore skepticism remains regarding its existence. Some studies suggest that presence warm could be due frontal instability,...
Abstract In the latter half of twentieth century, a significant climate phenomenon “diurnal asymmetric warming” emerged, wherein global land surface temperatures increased more rapidly during night than day. However, recent episodes brightening and regional droughts heatwaves have brought notable alterations to this warming trend. Here, we re-evaluate sub-diurnal temperature patterns, revealing substantial increase in rates daily maximum (T max ), while minimum remained relatively stable....
Abstract Mesoscale and submesoscale processes have crucial impacts on ocean biogeochemistry, importantly enhancing the primary production in nutrient‐deficient regions. Yet, intricate biophysical interplay still holds mysteries. Using targeted high‐resolution situ observations South China Sea, we reveal that isopycnal stirring serves as driver of vertical nutrient transport to sustain dome‐shaped subsurface chlorophyll maximum (SCM) within a long‐lived cyclonic mesoscale eddy. Density...
The mid-depth ocean circulation is critically linked to actual changes in the long-term global climate system. However, past few decades, predictions based on models highlight lack of data, knowledge, and implications change assessment. Here, using 842,421 observations produced by Argo floats from 2001-2020, Lagrangian simulations, we show that only 3.8% oceans, including part equatorial Pacific Ocean Antarctic Circumpolar Current, can be regarded as accurately modelled, while other regions...
During the Argo period, Pacific Ocean as well global oceans became saltier in upper-200 m from 2005 to 2015, with a significant spatial variability. Using Argo-based observations and Estimating Circulation Climate of (ECCO), salinity budget analysis upper 200 was conducted investigate what controls recent observed change Ocean. The results showed that increasing since mainly caused by reduction surface precipitation. ocean advection dampened freshwater anomalies rebuilt regional balance....
Abstract Six-month buoy-based heat flux observations from the poorly sampled tropical southeastern Indian Ocean are examined to document extremes during three cyclones (TCs) December 2018 May 2019. The most striking feature at mooring site (16.9°S, 115.2°E) TCs is extensively suppressed diurnal cycle of net surface (Qnet), with a mean daytime (nighttime) reduction 470 (131) W m −2 , peak decrease approximately noon 695 and an extreme drop TC Riley 800 . cooling in primarily contributed by...
Abstract Using 2‐year platform observations, this study investigates seasonal characteristics of sea land breeze (SLB) and how it influences air‐sea turbulent heat fluxes (THFs) in the coastal areas East China Sea (ECS) different seasons. Unlike other SLB studies, uses hourly observation on a to explore SLB's effect both latent sensible transferring. The results show that wind (SW) does not have an obvious variation pattern while (LW) is stronger autumn winter. day number shows clear...
Abstract This study provides an analysis of the Mediterranean Sea surface energy budget using nine heat flux climatologies. The ensemble mean estimation shows that net downward shortwave radiation (192 ± 19 W m −2 ) is balanced by latent (−98 10 ), followed longwave (−78 13 and sensible (−13 4 ). resulting (Qnet) 2 12 into ocean, which appears to be warm biased. annual‐mean Qnet should −5.6 1.6 when estimated from observed transport through Strait Gibraltar. To diagnose uncertainty in...
The classical theory predicts that a geostrophically balanced mesoscale eddy can cause sea surface temperature (SST) anomaly related to Ekman pumping. Previous studies show an eddy-induced SST result in latent heat flux (LH) at maximum magnitude of ∼ O (10) Wm –2 , decaying radially outward from the center margin. In this study, we investigate LH anomalies associated with submesoscale processes within cyclonic for first time using recent satellite-ship-coordinated air-sea observations South...
mean of 18 Wm � 2 for the five-member low net heat flux group (ERA-Interim, CORE.2, NCEP 1 and 2, ERA-40) 49 four-member high (CFSR, OAFluxþISCCP, NOCSv2.0, MERRA). This study used a pool-area based budget analysis together with in situ air-sea subsurface measurements to examine physical consistency nine climatologies ascribe statistical uncertainty each product. The indicates that annual surface should be 28 6 10 . observed eddy coefficient along C isotherm is 1.5 cm s on TAO/TRION buoys...
Abstract Sea surface currents are commonly neglected when estimating the air–sea turbulent heat fluxes in bulk formulas. Using buoy observations Bohai Sea, this paper investigated effects of near-coast multiscale on quantification fluxes, namely, latent flux (LH) and sensible (SH). The maximum current reached 1 m s −1 magnitude, a steady northeastward 0.16 appeared southern Strait. predominant tidal signal was semidiurnal current, followed by diurnal components. mean absolute wind from...
Abstract Using buoy observations from 2004 to 2010 and newly released atmospheric reanalysis satellite altimetry-derived geostrophic currents 1993 2017, the quantitative contribution of daily mean surface air–sea turbulent heat flux wind stress uncertainties in Gulf Stream (GS) region is investigated based on bulk formulas. At four stations, latent (sensible) difference between estimates with without range −18 (−4) 20 (4) W m −2 , while ranges −0.04 0.02 N . The positive values indicate...
Abstract The study examined global variability of air–sea sensible heat flux (SHF) from 1980 to 2009 and the large-scale atmospheric ocean circulations that gave rise this variability. contribution high-latitude wintertime SHF was identified, relative importance effect sea–air temperature difference versus wind on decadal analyzed using an empirical orthogonal function (EOF) approach. showed anomalies are strongly modulated by at high latitudes (poleward 45°) during winter seasons. Decadal...
Abstract Surface heating occurs over the streamline of Antarctic Circumpolar Current (ACC) and balances heat transport associated with global meridional overturning circulation. With a combination ocean assimilation model output, objectively analyzed products, atmospheric reanalysis, this paper investigates mechanism climatological surface cooling in Pacific sector zonal asymmetry. The poleward shift ACC path barotropic potential vorticity conservation was found to account for cooling....
Abstract Oceanic submesoscale dynamics with horizontal scales < 20 km have similar temporal and spatial as internal gravity waves (IGWs), but they differ dynamically distinct impacts on the ocean. Separating unbalanced motions (USMs), quasi-balanced (QBMs), IGWs in observations remains a great challenge. Based wave–vortex decomposition vertical scale separation approach for distinguishing USMs, long-term repeat Oleander Gulf Stream region provide an opportunity to quantify these processes...
Abstract Diurnal variation in surface latent heat flux (LHF) and the effects of diurnal variations LHF-related variables on climatological LHF are examined using observations from Global Tropical Moored Buoy Array. The estimated amplitude over Indo-Pacific warm pool equatorial Pacific Atlantic cold tongues is remarkable, with maximum values exceeding 20.0 W m −2 . variability sea skin temperature (SSTskin) primary contributor to amplitude. Because SSTskin has an inverse relationship wind...