Results 231 to 240 of about 7,355 (309)

Evaluating anisotropy‐based Monin–Obukhov similarity theory over canopies and complex terrain

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study shows that an anisotropy‐based generalization of Monin–Obukhov surface‐layer scaling (SC23) applies readily across a wide range of atmospheric conditions with variable terrain, canopies, and land‐cover complexity. This work focuses on the scaling of velocity variances for 7 years at the 47 sites in the National Ecological Observation Network
Tyler S. Waterman, Ivana Stiperski, Nathaniel Chaney, Marc Calaf   +3 more
wiley   +1 more source

Experimental characterization of complex atmospheric flows: A wind turbine wake case study. [PDF]

Sci Adv
Angelou N, Sjöholm M, Mikkelsen TK.
europepmc   +1 more source

The benefits of a hybrid‐3DEnVar data assimilation scheme for the convection‐permitting NWP model AROME–Austria

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The climatological‐error covariance matrix used in three‐dimensional variational data assimilation (3DVar) provides smooth and isotropic increments spread to long distances. In contrast, three‐dimensional ensemble variational data assimilation (3DEnVar) with a purely ensemble‐error covariance matrix provides inhomogeneous increments and contains the ...
Kaushambi Jyoti, Philipp Griewank, Florian Meier, Martin Weissmann   +3 more
wiley   +1 more source

Desert dust exerts twice the longwave radiative heating estimated by climate models. [PDF]

Nat Commun
Kok JF, K Gupta A, Evan AT, Pérez García-Pando C, Li L, Adebiyi AA, Albani S, Balkanski Y, Checa-Garcia R, Colarco PR, Hamilton DS, Huang Y, Ito A, Klose M, Mahowald NM, Miller RL, Obiso V, Rocha Lima A, Wan J.   +18 more
europepmc   +1 more source

Impact of data assimilation on Arctic sea‐ice thickness variability and its coupling with atmospheric forcing

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We document for the first time how the assimilation of CS2SMOS observations improves the model representation of Arctic sea‐ice thickness (SIT) and its variability: biases are reduced (top row), while excessive variability in the Beaufort Sea and lack of variability in the ice pack are both corrected (bottom row).
Jiping Xie, Yue Ying, Richard Davy, Laurent Bertino   +3 more
wiley   +1 more source

Assessing the impact of ship emissions on the atmospheric chemical composition in the Eastern Mediterranean and the Piraeus port (Greece). [PDF]

Sci Rep
Poupkou A, Liora N, Kontos S, Grivas G, Fameli KM, Tsiaousidis D, Solomos S, Kapsomenakis I, Assimakopoulos V, Progiou A, Kalabokas P, Mihalopoulos N, Kotrikla AM, Melas D, Zerefos C.   +14 more
europepmc   +1 more source

Forecast‐Error Diagnostics in Neural Weather Models

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Deep learning weather prediction models enable efficient forecast‐error diagnostics through auto‐differentiation and low computational cost. We apply grid‐point relaxation and gradient‐based error sensitivity to identify key forecast‐error sources. Results show that medium‐range forecasts in the midlatitudes benefit most from relaxing the stratosphere ...
Uroš Perkan, Gregor Skok, Žiga Zaplotnik   +2 more
wiley   +1 more source

Physics of North Indian Ocean tropical cyclones. [PDF]

Sci Rep
Rao VB, T MS, Lakshmi Bhargavi VS, Govardhan D, Srinivas CV, Prasad VS.   +5 more
europepmc   +1 more source

The relationship between equatorial wave interaction and heavy rainfall in Southeast Asia

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study examines the statistical relationship between co‐occurring equatorial waves and heavy rainfall in Southeast Asia. Heavy rainfall is more closely related to combined wave activity than to individual waves in many regions of Southeast Asia. The figure shows GPM–IMERG rainfall (shading) and ERA5 850‐hPa winds (vectors) composited on days when ...
Samantha Ferrett, John Methven, Oscar Martinez‐Alvarado, Xiangbo Feng, Thomas H. A. Frame, Christopher E. Holloway, Steven J. Woolnough, Gui‐Ying Yang   +7 more
wiley   +1 more source

Increased PM_2.5 Caused by Enhanced Fireworks Burning and Secondary Aerosols in a Forested City of North China During the 2023-2025 Spring Festivals. [PDF]

Toxics
Ma Q, Zhao G, Cheng K, Wu Y, Zhang R, Gu L, Xue J, Feng W, Zhou J, Shen X, Liu D.   +10 more
europepmc   +1 more source