Scnc n Sphr (SS) s sphrcl prjctn systm crtd by th ntd Stts Ntnl cnc nd tmsphrc dmnstrtn (N). t dsplys hgh-rsltn vd n sspndd glb wth th m f bttr rprsntng glbl phnmn. nmtd mgs f tmsphrc strms, clmt chng, nd cn tmprtr cn b dsplyd n th sphr t dsply nvrnmntl prcsss. SS systms r mst frqntly nstlld n scnc msms, nvrsts, zs, nd rsrch nstttns.