![\"GOES-16](\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2017\/11\/171116_goes16_Visible_SnowIce_ShortwaveInfrared_Lake_Superior_ship_tracks_anim.gif\")
<\/a>GOES-16 “Red” Visible (0.64 \u00b5m, left), Near-Infrared “Snow\/Ice” (1.61 \u00b5m, center) and Shortwave Infrared (3.9 \u00b5m, right) images, with hourly surface wind barbs plotted in yellow [click to play animation]<\/p><\/div>* GOES-16 data posted on this page are preliminary, non-operational and are undergoing testing *<\/em><\/p>\n GOES-16 “Red” Visible (0.64 \u00b5m<\/strong><\/a>), Near-Infrared “Snow\/Ice” (1.61 \u00b5m<\/strong><\/a>) and Shortwave Infrared (3.9 \u00b5m<\/strong><\/a>) images (above)<\/strong><\/em> revealed the presence of ship tracks across Lake Superior on 16 November 2017<\/strong><\/a>. Aerosols from the exhaust of ships cause a \u201ccloud seeding effect\u201d, which results in a higher concentration of smaller<\/em> cloud droplets compared to the surrounding unperturbed clouds. These smaller cloud droplets are more effective reflectors of sunlight, resulting in a brighter white signature on the Snow\/Ice imagery and a warmer (darker gray)<\/em> signature on the Shortwave Infrared imagery.<\/p>\n A view of the entire lake — using similar Visible, Snow\/Ice and Shortwave Infrared images from the Terra MODIS instrument — is shown below. In addition to the ship tracks, plumes from power plants and\/or industrial sites can be seen in southern Ontario, streaming southward near Thunder Bay (station identifier CYQT)<\/em> and southwestward near Upsala (CWDV);<\/em> another plume was evident in northeastern Wisconsin, to the southeast of Eagle River (KEGV)<\/em>.<\/p>\n