Use the dropdown menus to choose the
year, month,
hemisphere, and type of image
you want to view.
The animation controls at the bottom provide various options to allow you to animate forwards and backwards through time.
To download the image use your browser's
Save
function (usually a right-click menu option). It is possible to select an image that doesn't exist - either the date is out of range or the data are missing for some other reason. This results in a
NO DATA
image or a regular image with the caption "Insufficient Data Available".
Note:
The viewer will always return the most recent
Concentration Trends
images regardless of the year selected.
Checking
Fixed Month Animations
causes the auto step to increment the year only. Otherwise, the month is incremented and then the year.