Bruce Murray Space Image Library
Mars polar vortex from MARCI
![Mars polar vortex from MARCI](https://planetary.s3.amazonaws.com/web/assets/pictures/_1200x1200_crop_center-center_82_line/20140109_2012_1022_nph1.jpg 1200w, https://planetary.s3.amazonaws.com/web/assets/pictures/_768x768_crop_center-center_60_line/20140109_2012_1022_nph1.jpg 768w, https://planetary.s3.amazonaws.com/web/assets/pictures/_576x576_crop_center-center_60_line/20140109_2012_1022_nph1.jpg 576w)
This is a polar stereographic projection (west longitude increasing in a clockwise direction from the bottom of the image).
Bruce Murray Space Image Library
This is a polar stereographic projection (west longitude increasing in a clockwise direction from the bottom of the image).