The semiannual cycle in zonal wind over the equatorial Indian Ocean is investigated by use of ocean– atmospheric reanalyses, and linear ocean–atmospheric models. In observations, the semiannual cycle in zonal wind is dominant on the equator and confined in the planetary boundary layer (PBL). Results from a momentum budget analysis show that momentum advection generated by the cross-equatorial m...

[1] On the basis of moored (35 W, 0 and 23 W, 0 ) and satellite observations, we contrast the upper equatorial Atlantic variability during 2002 with those during 2005. Inspection of the interannual boreal summer cold tongue variability revealed a warm (cold) event in 2002 (2005), with relaxed (intensified) winds in the west and the Equatorial Undercurrent (EUC) embedded in a shallower (deeper) ...

[1] Recent proxy evidences indicate that the equatorial sea surface temperature (SST) may have led global ice volume by 3 kyr during the late Pleistocene glacial cycles. Given the short timescales of equatorial dynamics, equatorial climate variability is characterized by a timescale of no more than a few years. It would seem somewhat surprising therefore that the equatorial ocean and atmosphere...

reticulorumen hypomotility leads to the impaired physiologic functions of the digestive tract. prokinetic action of ginger has been demonstrated in the laboratory animals and human. the aim of this study was to evaluate the effect of hydroalcoholic extract of ginger on contraction and motility of reticulum and rumen of ruminants. collected samples of reticulum and rumen from eight sheep were in...

Biological productivity in the equatorial Pacific is relatively high compared with other low-latitude regimes, especially east of the dateline, where divergence driven by the trade winds brings nutrient-rich waters of the Equatorial Undercurrent to the surface. The equatorial Pacific is one of the three principal high-nutrient low-chlorophyll ocean regimes where biological utilization of nitrat...

One of the unexplained striking features of tropical convection is the observed statistical self-similarity, in clusters, superclusters, and intraseasonal oscillations through complex multi-scale processes ranging from the mesoscales to the equatorial synoptic scales to the intraseasonal/planetary scales. Here new multi-spatial scale, multi-time scale, simplified asymptotic models are derived s...

Temperatures in the tropical tropopause layer (TTL) play an important role in stratosphere–troposphere exchange and in the formation and maintenance of thin cirrus clouds. Many previous studies have examined the contributions of extratropical and equatorial waves to the TTL using coarse-vertical-resolution satellite and reanalysis data. In this study, the authors provide new insight into the ro...

Considering the optimal quantum cloning transformations for equatorial qubits, the quantum cloning networks for equatorial qubits consisting of quantum gates are presented. The copied equatorial qubits are separable by using Peres-Horodecki criterion. The phase-covariant optimal quantum triplicators are given. PACS: 03.67.-a, 03.65.Bz, 89.70.+c.