The authors investigate the response of the Arctic Ocean freshwater budget to changes in the North Atlantic Oscillation (NAO) using a regional-ocean configuration of the Massachusetts Institute of Technology GCM (MITgcm) and carry out several different 10-yr and 30-yr integrations. At /68 (;18 km) resolution the model resolves the major Arctic transport pathways, including Bering Strait and the...

The ocean coastal-shelf-slope ecosystem west of the Antarctic Peninsula (WAP) is a biologically productive region that could potentially act as large sink atmospheric carbon dioxide. duration sea-ice season in WAP shows interannual variability. However, quantifying mechanisms by which sea ice impacts biological productivity and surface dissolved inorganic (DIC) remains challenge due to lack dat...

We present global, three-dimensional numerical simulations of HD 189733b and HD 209458b that couple the atmospheric dynamics to a realistic representation of non-gray cloud-free radiative transfer. The model, which we call the Substellar and Planetary Atmospheric Radiation and Circulation (SPARC) model, adopts the MITgcm for the dynamics and uses the radiative model of McKay, Marley, Fortney, a...

Numerical studies of ice flow have consistently identified the grounding zone outlet glaciers and streams (the region where starts to float) as crucial for predicting rate grounded loss ocean. Owing extreme environments difficulty access ocean cavities beneath shelves, field observations are rare. Estimates melt rates derived from satellites also difficult make near zones with confidence. There...

ABSTRACT Ultra-hot Jupiters are tidally locked gas giants with dayside temperatures high enough to dissociate hydrogen and other molecules. Their atmospheres vastly non-uniform in terms of chemistry, temperature, dynamics, this makes their high-resolution transmission spectra cross-correlation signal difficult interpret. In work, we use the SPARC/MITgcm global circulation model simulate atmosph...

ABSTRACT Hot Jupiters are tidally locked gaseous exoplanets with atmospheric circulations dominated by a super-rotating equatorial jet. Their global circulation is often studied simulations in 3D general models (GCMs). Energy builds up at the smallest scales these and must be dissipated. Many use ‘hyperdiffusion’ for this, which applies tendency to prognostic variables based on high-order Lapla...

WASP-96b is a hot Saturn exoplanet, with an equilibrium temperature well within the regime of thermodynamically expected extensive cloud formation. Prior observations Hubble/WFC3, Spitzer/IRAC, and VLT/FORS2 have been combined into single spectra for which retrievals suggest cold but cloud-free atmosphere. Recently, planet was observed James Webb Space Telescope (JWST) as part Early Release Obs...