Effect of the 3D distribution on water observations made with the SWI - I. Ganymede E. S. Wirström, P. Bjerkeli, L. Rezac, C. Brinch and P. Hartogh A&A, 637 (2020) A90 Published online: 21 May 2020 DOI: 10.1051/0004-6361/202037609