Results 171 to 180 of about 6,692 (259)

Projections of Meteorological Drought and Potential Evapotranspiration Using the RegCM4 Over Northeastern Iran

open access: yesInternational Journal of Climatology, Volume 46, Issue 10, August 2026.
We downscale CanESM2 with the Regional Climate Model version 4 (20 km) and evaluate against 15 stations to derive monthly PET (Hargreaves–Samani) and SPEI for northeastern Iran (1990–2009, 2040–2059, 2080–2099). Results show robust PET increases and a shift toward more negative monthly SPEI—especially April–September—indicating earlier onset and longer
Nasrin Salehnia   +6 more
wiley   +1 more source

Detection, Attribution and Projection of Precipitation Structure Changes Over Northwest China

open access: yesInternational Journal of Climatology, Volume 46, Issue 10, August 2026.
The precipitation structure shows a change trend of ‘the frequency of light precipitation decreased and the intensity of heavy precipitation increased’; attribution analysis shows that greenhouse gas forcing (GHG) is the main driving factor of precipitation structure change, and the model underestimates its impact, while aerosol forcing (AER) and ...
Shigen Wang   +3 more
wiley   +1 more source

Phylogenetics of Clusia sect. Criuva (Clusiaceae) unveils a new species, reinstates an old name and clarifies sectional circumscription

open access: yesTAXON, Volume 75, Issue 4, August 2026.
Abstract Clusia sect. Criuva has long been a taxonomic catch‐all, particularly in the final decades of the 20th century, when misapplications conflated eastern Brazilian taxa with species from the Guiana Shield. We combine herbarium‐based genome skimming, targeted fieldwork, and critical examination of historical literature and types to reassess ...
José E. do Nascimento Jr   +2 more
wiley   +1 more source

An Analysis of Future Wind Energy Resources and Cost Uncertainties Across the United States

open access: yesWind Energy, Volume 29, Issue 8, August 2026.
ABSTRACT Wind power is a growing source of energy generation that relies on complex global atmospheric and earth system processes. There has been evidence of reductions in average wind speeds over land in North America since the 1980s, and several models project that average wind speeds will continue to decrease.
Grant Buster   +3 more
wiley   +1 more source

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