A selection of new science articles from the past week of interest to the SPARC community (a SPARC Office choice).

A rising trend of double tropopauses over South Asia in a warming environment: implications for moistening of the lower stratosphere. By S. Fadnavis et al. in the International Journal of Climatology.

Partitioning climate projection uncertainty with multiple large ensembles and CMIP5/6. By F. Lehner et al. in Earth System Dynamics.

QBO‐MJO connection in CMIP5 models. By Y. Lim and S.-W. Son in the Journal of Geophysical Research: Atmospheres.

The vertical structure and spatial variability of lower-tropospheric water vapor and clouds in the trades. By A.K. Naumann and C. Kiemle in Atmospheric Chemistry and Physics.

Erythemal Radiation, Column Ozone and the North America Monsoon. By M.R. Schoeberl et al. in the Journal of Geophysical Research: Atmospheres.

Evaluation of the Diurnal Variation of Upper Tropospheric Humidity in Reanalysis Using Homogenized Observed Radiances from International Geostationary Weather Satellites. By Y. Xue et al. in Remote Sensing.