Shuyan Liu, Xin-Zhong Liang, Observed Diurnal Cycle Climatology of Planetary Boundary Layer Height, Journal of Climate, Vol. 23, No. 21 (1 November 2010), pp. 5790-5809 ...

Metrics are proposed—that is, a few summary statistics that condense large amounts of data from observations or model simulations—encapsulating the diurnal cycle of precipitation. Vector area ...

Air traffic over the North Atlantic follows a systematic time pattern (see animation). Every morning hundreds of airliners cruise from North America to Europe and return to North America in the early ...

The Space Cycle, a human-powered centrifuge under testing in Caiozzo's lab, generates various levels of artificial gravity ranging from Earth gravity to five times Earth's gravity.

Rare example of phase shifting The daytime toads Dr Clulow found were not just a one-off sighting; the cane toads had reversed their normal 24-hour cycle. "It's extremely rare. It's a phenomenon ...