The locations of humpback whale catches in the early 20th century indicate that most climate models overestimate the historic extent of sea ice in the Southern Ocean.
Modeling
Defining the Tropopause in Chemical Transport Models
Synthetic tracers are useful in defining the chemically-heterogeneous tropopause in chemical transport models, especially where more traditional gradient-based tropopause methods may be lacking.
Earth’s Energy Imbalance is Growing Faster Than Expected
Satellite observation of the imbalance between incoming and outgoing radiation in the atmosphere, which causes global warming, shows growth beyond what climate models have predicted.
More Bubbles Means More Variation in Ocean Carbon Storage
A new model accounting for the role of bubbles in air-sea gas exchanges suggests that ocean carbon uptake is more variable than previously thought.
Years-Old Groundwater Dominates Spring Mountain Streams
Alpine rain and snow take much longer to percolate into western U.S. streams than previously thought, adding complexity to long-standing hydrologic models.
Deep Root Respiration Helps Break Down Rocks
The carbon dioxide that results from respiration in and around deep roots is an essential component in the chemical weathering of sandstone rock soils.
Un antiguo evento de calentamiento podría haber durado más de lo que pensábamos
Una nueva investigación sobre el Máximo Térmico del Paleoceno-Eoceno usó análisis probabilístico para entender mejor su duración y sobre cuánto tiempo podría afectar el calentamiento moderno al ciclo del carbono.
ARMing SCREAM with Observations to Expose Cloud Errors
Modern ARM observations expose persistent process-level errors in a global cloud-permitting model, guiding future developments and improvements.
Obtaining Local Streamflow at Any Resolution
A new upscaling method ensures that global simulations at low resolution preserve the streamflow at local points of interest, such as stream gauges.
Scientists Spot Sputtering on Mars
Nearly a decade’s worth of data went into the first direct observation of sputtering on Mars, which researchers believe contributed to the loss of the Red Planet’s atmosphere.