A new analytical model describes how the amount and grain size of sediment transported by rivers influences bedrock channel width, which can be used to predict where rivers will widen or narrow.
Energy budgets
El debate sobre las proyecciones de emisiones energéticas de las Naciones Unidas
Un nuevo estudio encuentra el factor económico que controla la divergencia entre las trayectorias de las emisiones en las evaluaciones climáticas y la realidad.
The Debate over the United Nations’ Energy Emissions Projections
A new study finds the economic factor driving the divergence between emissions trajectories in climate assessments and reality.
Forested Streams May Warm More Than Observations Predict
Understanding how temperatures of cold-water streams respond to global warming could help clarify the impacts of climate change on aquatic ecosystems.
A Simplified Model of Water Vapor Exchange in the Amazon
Evapotranspiration is the exchange of water vapor between land and the atmosphere, and it is hard to measure and model. A new study shows promise for its estimation over large, vegetated landscapes.
A Comprehensive Estimate on the Entropy Budget in the Ocean
An analysis of the energy budget in the ocean estimates the Carnot work to be 110 terawatts and the ocean’s Carnot efficiency to be 0.86%.
Restored Wetlands Could Lower Local Surface Temperatures
A 3-year study of wetlands and cropland in a major California delta highlights the need to consider the physical effects of vegetation when planning land use changes.
Rethinking How Water Circulates Between the Oceans and Land
A reexamination of the global water cycle shows that tropical coastlines exert a profound influence on atmospheric water circulation by wringing water vapor from the atmosphere.
Wet Soils Elevate Nighttime Temperatures
Soil moisture can elevate overnight temperatures, offsetting daytime cooling, especially over areas of strong land-atmosphere interactions.
The Power of Water, Wind, and Solar (and Nothing Else)
Road map for improving climate calls for 100% clean, renewable energy by 2050.
