Results 121 to 130 of about 10,485 (275)
Stochastic Forcing of Potential Vorticity: Observations
, 2011 The linear theory of point correlation maps for synoptic systems relies so far mainly on specifications of stochastic forcing due to nonlinear processes that are not based on observations.
Egger, Joseph +3 more
core +1 more source
Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.Abstract Ocean models can represent surface circulation at kilometer scales, but their computational cost limits broad experimentation. We present DeepCUN, a deep convolutional encoder–decoder (U‐Net) that emulates daily mean Baltic Sea surface current components on a 1‐nautical‐mile grid.
Amirhossein Barzandeh +5 more
wiley +1 more source
, 2009 A one-parameter family of exact solutions describing the bifurcation of a steady two-dimensional current with uniform vorticity near a gap in a thin barrier is found.
Johnson, ER, McDonald, NR
core
Moisture Decomposition With Normal Modes in Global Data: Balanced and Unbalanced Components
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 13, 16 July 2026.Abstract Decompositions with normal modes have been useful for numerous purposes, such as theoretical understanding of balanced and unbalanced circulations, and applications to data assimilation. However, normal mode decompositions have typically been formulated for dry dynamics without moisture.
Bradley Kumm +3 more
wiley +1 more source
Integrable unsteady motion with an application to ocean eddies [PDF]
Nonlinear Processes in Geophysics, 1998 Application of the Brown-Samelson theorem, which shows that particle motion is integrable in a class of vorticity-conserving, two-dimensional incompressible flows, is extended here to a class of explicit time dependent dynamically balanced flows in ...
A. D. Kirwan, Jr., B. L. Lipphardt, Jr.
doaj
On Potential Vorticity Flux Vectors
Journal of the Atmospheric Sciences, 2003 Abstract Dynamical, rather than kinematical, considerations indicate that a generalized potential vorticity in terms of the gradient of an arbitrary scalar function requires that the potential vorticity flux vector contain a contribution due to gravity and the pressure gradient force.
Peter R. Bannon +2 more
openaire +1 more source
Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.Abstract Under anthropogenic warming, a strengthened wintertime anticyclonic anomaly over the Barents–Kara Sea (BKS) has emerged as a hallmark of recent Arctic climate change. While local forcing from sea ice loss has been widely emphasized, the quantitative contribution of remote tropical forcing remains poorly constrained.
Zhongfang Liu +5 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.Abstract Global medium‐range weather forecasts suffer occasional failures (“busts”) linked to tropical cyclones (TCs). We investigate TC influences on extratropical predictability by comparing forecasts from a physics‐based model (ECMWF‐IFS) and an AI‐hybrid model (Google‐NGCM) initialized near TC genesis.
Gan Zhang
wiley +1 more source
Assessing atmospheric bias correction for dynamical consistency using potential vorticity
Environmental Research Letters, 2014 Correcting biases in atmospheric variables prior to impact studies or dynamical downscaling can lead to new biases as dynamical consistency between the ‘corrected’ fields is not maintained. Use of these bias corrected fields for subsequent impact studies
Eytan Rocheta +2 more
doaj +1 more source
Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.Abstract The diurnal variation of regional precipitation events (RPE) over the Middle and Lower Yangtze River Basin (MLYRB) significantly affects human activities and serves as a key reference for weather forecasting. Here, the diurnal variation of summer RPE over MLYRB under two monsoonal synoptic types and their regulatory factors have been addressed.
Rongchang Wu +4 more
wiley +1 more source