Results 141 to 150 of about 6,504 (191)

Enhanced Tidal Mixing Strengthened and Stabilized the AMOC During the Bølling–Allerød

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Proxy records indicate a robust Atlantic Meridional Overturning Circulation (AMOC) during the Bølling–Allerød (BA) interstadial, despite substantial meltwater discharge. Using ocean circulation simulations, we demonstrate that enhanced tidal mixing, sustained by lower‐than‐modern sea levels, significantly strengthens the BA AMOC and increases ...
Y. Chen, P. Song, Y. Sun, X. Chen, G. Lohmann   +4 more
wiley   +1 more source

Neural‐BGC: An Observation‐Driven Emulator for Hybrid Physical‐Biogeochemical Modeling

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Coupled ocean‐biogeochemical models are essential for understanding marine ecosystems, yet they often suffer from persistent biases due to poorly constrained empirical parameters. To address this limitation, we introduce Neural‐BGC, an observation‐driven neural network emulator for hybrid physical‐biogeochemical modeling. Neural‐BGC is trained
Said Ouala, Zouhair Lachkar
wiley   +1 more source

Low Cross‐Product Agreement in Global Coastal Marine Heatwaves (1982–2023) and Implications for Trend Attribution

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Coastal marine heatwaves (MHWs) derived from satellite and blended sea surface temperature (SST) products often disagree, but the magnitude and drivers of this uncertainty remain poorly quantified. Using four daily SST products from 1982 to 2023, we quantify agreement at 9,946 global coastal points using two inter‐product intersection‐over ...
Wenjin Sun, Jiaxiang Li, Tianxiao Cui, Jingsong Yang, Changming Dong   +4 more
wiley   +1 more source

Estimating Uncertainty of PMW‐Based Convective Fraction Product

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract Convective precipitation plays a crucial role in the Earth's hydrological cycle, vertical thermodynamic transport, and natural weather hazards. While satellite passive microwave (PMW) observations offer broad spatial coverage essential for global precipitation monitoring, uncertainties in PMW‐derived precipitation class (i.e., regime) remain ...
Lei Ji, Veljko Petković, Marko Orescanin   +2 more
wiley   +1 more source

Emergy-based indicators for evaluating ecosystem health: A case study of three benthic ecosystem networks influenced by coastal upwelling in northern Chile (SE Pacific coast). [PDF]

Ecol Indic, 2018
Berrios F, Campbell DE, Ortiz M.
europepmc   +1 more source

Stratospheric Ozone Depletion Causes Southern Ocean Surface Cooling

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Stratospheric ozone depletion strongly influences Southern Ocean climate change. Using coupled climate model simulations, we quantify the transient effect of stratospheric ozone depletion on sea surface temperature (SST) over the Southern Ocean from 1982 to 2005.
Shouwei Li, Wei Liu, Liping Zhang, William J. M. Seviour, Gavin A. Schmidt   +4 more
wiley   +1 more source

An Atmosphere–Land–Ocean Coupled Global NWP System: Performance Evaluation for Potential Operational Use

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract This study assesses the influence of ocean–atmosphere coupling on short‐ and medium‐range forecasts of the July 2024 Indian summer monsoon using the newly configured coupled NCMRWF Unified Model (C‐NCUM). Forecasts are evaluated against the operational atmosphere–land model (NCUM) using GPM rainfall, OSTIA SSTs, and reanalysis‐derived moisture
Sumit Kumar, Imranali M. Momin, Sukhwinder Kaur, Kondapalli Niranjan Kumar, Jonah Roberts‐Jones, Matthew J. Martin, John P. George, V. S. Prasad   +7 more
wiley   +1 more source

Harbor porpoise distribution and habitat use in the Northern California Current over three decades. [PDF]

PeerJ
Barlow DR, Strong CS, Muhling B, Torres LG.   +3 more
europepmc   +1 more source

The Observed Circumpolar Decline of Antarctic Bottom Water Volume

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Antarctic Bottom Water (AABW) formation is a key component of the global overturning circulation, ventilating the abyssal ocean and sequestering heat and carbon. Using a new reconstruction from the SatGEM‐2 monthly‐varying gravest empirical mode climatology, a continuous, observation‐driven circumpolar record of AABW variability is presented ...
James Wyatt, Nathaniel L. Bindoff, Annie Foppert, Helen Phillips, Stephen R. Rintoul   +4 more
wiley   +1 more source

Tracing the Abyssal Water Pathways in the Indian Ocean

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Antarctic‐origin abyssal waters occupy a significant fraction of the global ocean volume and play a key role in deep circulation and ventilation, yet their volume is declining rapidly in a warming climate. Although the Indian Ocean (IO) contains a substantial fraction of these waters, abyssal pathways and upwelling in the basin remain poorly ...
Kaushik Mishra, Bishakhdatta Gayen, Kathryn L. Gunn, P. N. Vinayachandran, Nihar Paul   +4 more
wiley   +1 more source