Results 101 to 110 of about 24,612 (296)

Climate change and circulation types in the Alpine region

open access: yesMeteorologische Zeitschrift, 2017
The frequency of circulation types over the Alpine region is explored using 20 different global and regional climate model chains. The projected changes in these circulation types are investigated for the 21st century using the SRES A1B scenario.
Marco Rohrer   +2 more
doaj   +1 more source

A Weakened AMOC Could Cause Southern Ocean Temperature and Sea‐Ice Change on Multidecadal Timescales

open access: yesJournal of Geophysical Research: Oceans, Volume 130, Issue 7, July 2025.
Abstract We present the first CMIP6‐era multi‐model intercomparison of the Southern Ocean (SO) temperature and sea‐ice response to substantial Atlantic meridional overturning circulation (AMOC) weakening. Results are based on analysis of the North Atlantic Hosing Model Intercomparison Project, involving eight CMIP6 models under identical North Atlantic
Rachel Diamond   +13 more
wiley   +1 more source

Simulating the Effects of Aerosol‐Radiation Interactions on Subseasonal Prediction Using the Coupled Unified Forecast System and CCPP‐Chem: Interactive Aerosol Module Versus Prescribed Aerosol Climatology

open access: yesJournal of Advances in Modeling Earth Systems, Volume 17, Issue 7, July 2025.
Abstract This study investigates the effects of aerosol‐radiation interactions on subseasonal prediction using the Unified Forecast System, which includes atmosphere, ocean, sea ice, and wave components, coupled with an aerosol module. The aerosol module is from the current NOAA operational GEFSv12‐Aerosols model, which is based on the WRF‐Chem GOCART ...
S. Sun   +8 more
wiley   +1 more source

On the definition of height reference surfaces over an arbitrary selected area by means of DFHRS approach

open access: yesGeodesy and Cartography, 2016
The aim of this study is to analyze the best fitting geoid model for an arbitrary selected area of investigation. The Digital Finite Element Height Reference Surface (DFHRS) method, developed by Hochschule Karlsruhe has been chosen to define the height ...
Perparim Ameti, Reiner Jager
doaj   +1 more source

The ecological forecast limit revisited: Potential, absolute and relative system predictability

open access: yesMethods in Ecology and Evolution, Volume 16, Issue 7, Page 1521-1541, July 2025.
Abstract Ecological forecasts are model‐based statements about currently unknown ecosystem states in time or space. For a forecast to be useful to inform decision makers, model validation and verification determine adequacy. The measure of forecast goodness that can be translated into a limit up to which a forecast is acceptable is known as the ...
Marieke Wesselkamp   +5 more
wiley   +1 more source

The Relationship between Disturbance of the Polar Jet Stream and the Surface Low Pressure Intensity

open access: yesAl-Mustansiriyah Journal of Science, 2019
The work studied the relationship between polar jet stream and surface low pressure in April's months during years from 2014 to 2016 which the polar jet passes with high frequencies over the area of study.
hazim D. mohsin   +2 more
doaj   +1 more source

Dynamic Contributions to Recent Observed Wintertime Precipitation Trends in Mediterranean‐Type Climate Regions

open access: yesGeophysical Research Letters, Volume 52, Issue 12, 28 June 2025.
Abstract Many Mediterranean‐type climates (MCs) have experienced wintertime drying trends since 1979. Using a dynamical adjustment method, we separate the effects of circulation‐induced drying trends from other residual trends. Our analysis reveals that circulation trends are the leading cause of the observed drying in Central Chile and the US ...
Robert Doane‐Solomon   +2 more
wiley   +1 more source

On the Propagation of Convectively Coupled Kelvin Waves From Africa to the Indian Ocean

open access: yesGeophysical Research Letters, Volume 52, Issue 12, 28 June 2025.
Abstract The composite evolution of Convectively Coupled Kelvin Waves (CCKWs) is studied as they move from Africa to the Equatorial Indian Ocean. Over Africa, the East African Highlands (EAH) weakens the convective coupling of CCKWs while steering the lower‐tropospheric part of CCKWs northwards, which seems analogous to the trapping of Kelvin waves at ...
Jayesh Phadtare, Harindra J. S. Fernando
wiley   +1 more source

Understanding the Biases in Daily Extreme Precipitation Climatology in CMIP6 Models

open access: yesGeophysical Research Letters, Volume 52, Issue 12, 28 June 2025.
Abstract Future projections in extreme precipitation depend heavily on climate models. Therefore, assessing their fidelity in reproducing the extreme rainfall characteristics in historical simulation is critical. We evaluated CMIP6 models' performance in reproducing the climatology of daily extremes, focusing on the global land monsoon (GLM) domain ...
Jiaqi Chen   +4 more
wiley   +1 more source

Global atmospheric circulation statistics: Four year averages [PDF]

open access: yes
Four year averages of the monthly mean global structure of the general circulation of the atmosphere are presented in the form of latitude-altitude, time-altitude, and time-latitude cross sections. The numerical values are given in tables.
Geller, M. A.   +3 more
core   +1 more source

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