While technology of our satellite systems have greatly improved the quality and range of observations over the past 50 years, it is the lgacy of the first global coverage environment satellites launched by NASA in the 1960s, that marks the beginning of a unique perspective from space. Mankind first saw Earth from these satellites and there have been significant changes over the last half-century.
The recovery of this old data can be something of a treasure hunt, results are not guaranteed, but the data can reveal answers to question never considered by the original designers. Exploring data, not seen in decades, is both exciting and challenging. Ultimately, this early satellite data is highly valuable, as it has extended our climate records and provided important context in longer-term climate changes.