Results 121 to 130 of about 8,734 (269)

Estimating the Geostrophic–Ageostrophic Transition Scale in Ocean Currents From Wind Generated Waves

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract SWOT resolves sea surface height at spatial scales where geostrophic balance may break down and ageostrophic motions become significant, making identification of the transition scale essential. We test whether wind generated waves provide an independent diagnostic of this transition.
Nelson Violante‐Carvalho, Thiago de Paula, Felipe Marques dos Santos, Luiz Mariano Carvalho, Andre Cordeiro dos Santos, Leandro Calado   +5 more
wiley   +1 more source

Transition of Turbulence Features From Frontal Modulation to Typhoon Forcing Over the Northern South China Sea Shelf

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Ocean turbulence, crucial for regulating Earth systems, is substantially modulated by background dynamic processes. Using 8‐day‐long hourly microstructure observations over the South China Sea shelf in summer, we investigate turbulence evolution under strong stratification and successively modulated by a front and a typhoon. In the mixed layer,
Jianing Li, Qingxuan Yang, Hui Sun, Yanwei Zhang, Wei Zhao, Jiwei Tian   +5 more
wiley   +1 more source

Physically Consistent Reconstruction of Sparse Scatterometer Ocean Surface Wind Fields Based on Physics‐Guided Generative Learning

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Accurate and timely reconstruction of sea surface wind fields from available scatterometer‐derived observations is essential for rapid‐response forecasting and operational oceanography. In this study, we explore a novel physics‐guided generative learning network to reconstruct sea surface wind vector fields directly from sparse scatterometer ...
Ran Bo, Zengliang Zang, Zeming Zhou, Pinglv Yang, Huadong Du, Xiaofeng Zhao, Qian Li, Yangfan Hu   +7 more
wiley   +1 more source

Helicity: A Possible Indicator of Negative Feedback Initiation of Tropical Cyclone–Ocean Interaction

Earth and Space Science
The development of large‐scale vortex dynamo during tropical cyclogenesis through the mutual intensification of primary and secondary circulation in terms of helical evolution is well studied.
A. Munsi, A. P. Kesarkar, J. N. Bhate, V. S. Tallapragada   +3 more
doaj   +1 more source

Bias Correction Can Strongly Shape California's Projected Megaflood Risk

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 16, 28 August 2026.
Abstract A California “megaflood”—a weeks‐long cluster of storms with centuries‐long return times—would be catastrophic, yet its timing and magnitude under climate change remains uncertain. A central source of uncertainty is whether Earth System Model boundary conditions should be bias corrected before dynamical downscaling.
Stefan Rahimi, Lei Huang, Chad W. Thackeray, Mark D. Risser, Emilie Tarouilly, Jesse Norris, Alan Rhoades, Benjamin Bass, Alex Hall, Zachary J. Lebo, Weichen Liu, Flavio Lehner, Tim Corrie, Ankur Dixit   +13 more
wiley   +1 more source

Is Europe Under UNSEEN Risk of Cyclones of Tropical Origin?

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract The impacts and potential multidecadal variability of cyclones of tropical origin (CTOs) remain poorly understood, particularly when these events make landfall or pass near Europe (named CTO‐Es) or cause measurable impacts in Europe (named CTO‐EIs).
K. S. Ng, E. Bianco, K. I. Hodges, G. C. Leckebusch   +3 more
wiley   +1 more source

Unique Vertical Characteristics of Hydrometeors Observed in the Tropical Cyclone Outer Rainband Region

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 15, 16 August 2026.
Abstract This study investigates the vertical cloud microphysics in the stratiform sectors of Hurricane Tammy's outer rainband region and their relationship to local environments. We used in situ Optical Array Probe (OAP) measurements and tail‐Doppler radar data from four NOAA P‐3 spiral modules on 19–22 October 2023, as Tammy intensified from a ...
Xin Yang, Xuejin Zhang, Jun A. Zhang
wiley   +1 more source

Uncovering Ocean Mixed Layer Dynamics From the Sea Surface State

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Submesoscale dynamics strongly influence the upper ocean, regulating mixing, air–sea exchange, and vertical heat transport. The recent Surface Water and Ocean Topography mission provides unprecedented high‐resolution observations of sea surface height (SSH), yet linking these surface measurements to subsurface ocean dynamics remains ...
Yidongfang Si, Leah Johnson, Abigail Bodner   +2 more
wiley   +1 more source

Quantifying Daily Vertical Heat Flux in the Loop Current System: A Quasi‐Lagrangian Assessment of Frontal Hotspots

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Vertical heat exchange within the upper ocean critically influences regional climate but remains difficult to observe directly. In the Gulf of Mexico, the Loop Current and its associated eddies significantly enhance this exchange. High‐resolution glider observations reveal that this transport is dominated by sub‐daily variability an order of ...
Sakib Mahmud, Xiao Ge, Uchenna Nwankwo, Anthony Knap, Steven F. DiMarco   +4 more
wiley   +1 more source

Multidecadal Changes in ENSO Drive a Substantial Decline in West Antarctic Sea Ice Predictability

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract ENSO teleconnections are a key source of Antarctic sea‐ice predictability, particularly in the Antarctic Dipole (ADP) region, but whether this predictability remains stable under the recent transition toward Central Pacific (CP) El Niño is unclear.
Yunhe Wang, Xiaojun Yuan, Xiaofeng Li, Yibin Ren, Bernard Wang   +4 more
wiley   +1 more source