A seesaw pattern of PM_2.5 interannual anomalies between Beijing-Tianjin-Hebei (BTH) and Yangtze River Delta (YRD) was found

The difference in regional transport driven by interannual variation in the East Asian winter monsoon (EAWM) was the dominant mechanism

Higher PM_2.5 anomalies in northern BTH during the COVID-19 lockdown were mainly caused by the nonactive EAWM

Climate model ensembles driven by estimated radiative forcing can be used to estimate both forced and internal climate variability

Such exercises can yield biased results in the presence of uncertainty in both forcing and response as pertains to the past millennium

Ensemble analysis shows a widely used procedure yields biased results for past millennium

Kīlauea caldera collapse-related seismicity is a source of seismic hazard in Hawai‘i and should be included in a complete seismic hazard assessment

Their occurrence is modeled by combining distributions for the number of caldera collapses and number of earthquakes per collapse

The event occurrence model is non-Poisson, and this approach may be generalizable for other seismogenic processes

Morphometric boundaries investigated in 105 modern deltas globally

Slope break and avulsion lengths show the strongest scaling relationship, more significant than previous scaling relationships

Processes contributing to this slope-break avulsion length scaling relationship are proposed along with conceptual model of the implications

‘Urban Dry Islands’ (UDI) effects are detected across a large climatic gradient

Urbanization exacerbates global warming and UHI effects on UDI through reducing evapotranspiration and water vapor availability

The magnitude and frequency of UDI are more pronounced in humid regions than arid regions due to differences in vegetation and climate

Turbulence emerges in a marginally stable ocean interior by localized bursts in shear

Data suggests shear instability is the prevalent facilitator of turbulence, even close to boundaries

The marginally unstable turbulent patches seem to mix optimally during most of their life cycles

We estimate Central Valley groundwater unloading viscoelastic effects on present-day central San Andreas (CSAF) fault stressing

Coulomb stress change for the CSAF during the 2006-2010 drought corresponds positively with seismicity and low frequency earthquakes

Cumulative Coulomb stress change on the CSAF for 1860-2010 is on the order of ∼0.01-0.02 MPa depending on the lower crustal viscosity

We parameterize the turbulent mixing enhanced over high-wavenumber bathymetry with a revised formulation of its vertical decay scale

The vertical decay scale of bottom-enhanced mixing is given by the vertical mean free path of internal lee waves from the ocean bottom

The upward extent of mixing is in proportion to the abyssal current velocity squared and the inverse abyssal buoyancy frequency squared

Cloud electric field substantially modifies the raindrop size distribution

WRF model simulations show a significant underestimation of the observed rain intensity for strongly electrified rain events

The simulated rain intensity improved significantly with the incorporation of electrically modified raindrop size distribution parameters

Keck-NIRSPEC observations of Saturn’s northern infrared auroral emission from 2017 are analysed

First clear picture of how the ionosphere moves in relation to planetary period currents is provided

Saturn’s measured variable rotation rate is driven by twin-vortex flows in the upper atmosphere