Abstract: 

All planetary atmospheres are 3D in nature. This is particularly true for the majority of exoplanets we observe today : tidally-locked, close in, giant planets. Atmospheric flow from the dayside to nightside of these worlds shape the 3D thermal, chemical and cloud structure. Understanding this 3D structure is crucial to properly interpret current and future observations.

I will show how recent breakthrough in telescopes and instrumentations allow us directly measure dynamical quantities and map the 3D structure of exoplanets. I will particularly highlight how wind speeds can be directly measured from ground-based high-spectral resolution observations and how temperature, chemical and cloud maps can be obtained through JWST observations, including the recently observed NIRspec/PRISM phase curve of the hot Jupiter NGTS-10b.

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