Sea breezes are characteristic features of coastal regions that can extend large distances from the coastline. Oscillations close to the inertial period are thought to account for around half the kinetic energy in the global surface ocean and play an important role in mixing. In the vicinity of 301N/S, through a resonance between the diurnal and inertial frequencies, diurnal winds could force e...

We analyzed diurnal variations in precipitation, surface pressure, and atmospheric static energy over the United States from observations and NCAR regional climate model (RegCM) simulations. Consistent with previous studies, the mean (1963-1993) pattern of the diurnal cycle of summer U.S. precipitation is characterized by late afternoon maxima over the Southeast and the Rocky Mountains and midn...

A young potted oak (Quercus robur L.) tree was subjected to drought by interrupting the water supply for 9 days. The tree was placed in a growth chamber in which daily patterns of temperature and radiation were constant. The effects of drought on the water and carbon status of the stem were examined by measuring stem sap flow rate, stem water potential, stem diameter variations, stem CO(2) effl...

Daily surface wind variations over the equatorial eastern Pacific Ocean during summer 1992 are documented, using hourly observations from the tropical atmosphere ocean moored buoy array. Diurnal and semidiurnal variations are apparent in the zonal wind component, with peak-to-peak amplitudes of a few tenths of a meter per second. The phase of the semidiurnal cycle in zonal wind is approximately...

To determine the influence of circadian rhythmicity and sleep on the 24-h leptin diurnal variations, plasma leptin levels were measured at 10-min intervals over 24 h in seven normal subjects, once during nocturnal sleep, and once after an 8-h shift of sleep. The subjects were submitted to constant conditions (continuous enteral nutrition and bed rest in controlled chambers). Body temperature an...

[1] The time series of clear-sky Land Surface Temperatures (LST) for one year, 2001, obtained from pyrgeometric observations at five selected US surface radiation (SURFRAD) stations and independently retrieved for the locations of these stations from Infrared Imager hourly observations of two geostationary satellites, GOES-8 and GOES-10, are presented as a sum of time-dependent expected value (...

A great deal of research has been done on the diurnal variations in different forms of animal and human activity. The first diurnal variation to be observed was the one in body temperature, and it is the one most widely recognized today. Similar diurnal variations have been observed in a series of other physical processes. Extensive surveys of the literature have been given by Holmgren (1936), ...

This chapter is a summary of the diurnal (hour-by-hour) variations observed in concentrations of ozone, carbon monoxide, and oxides of nitrogen, as well as in NO 2 /NO ratios, in the South Coast Air Basin by day of the week during the summers of 1994 and 1998. The diurnal variations are examined for consistency with each Weekend Effect Hypothesis. The plausibility of a Weekend Effect Hypothesis...