ABSTRACT

Following the resumption of the investigation after the Libyan revolution in 2011, the WMO evaluation team began a detailed examination of the then-accepted world extreme for the highest recorded temperature. In this chapter, the five problems with 1922 observation identified by the committee are discussed: a) a poor sensing instrument, b) an inadequately trained observer, c) unrepresentative siting, d) failure to match earlier or prior observations at the site, and e) failure to match surrounding stations. These problems led to the committee’s recommendation to reject the 1922 Libyan temperature value as a world record. The chapter is concluded by a short interlude involving the horrendously hot temperatures associated with creation of Hoover Dam in the American Southwest.