NIMBUS 3 AND 4 VISIBLE IMAGE CLIMATOLOGY: 1969 AND 1970
Thursday, 18 December 2014: 3:25 PM
The Nimbus 3 and Nimbus 4 satellites collected visible imagery with the Image Dissection Camera System, IDCS. We recovered this data from 70mm black and white film by digitizing the images and then providing navigation and timing meta data. As in previous studies we will discuss the sea ice extent around Antarctica as well as in the Arctic with new information about 1970 and 1971. We now have a chance to look at a full seasonal cycle of sea ice changes long before the current records. Comparisons with Ice Core proxy estimates (Curran et al.) of sea ice extent will be presented. Also we will discuss a new use of the data: measuring the variation of tropical convection. Specifically could this Nimbus data extend the Highly Reflective Cloud Climatology (1971 to 1988).