How unstable is the tropical ocean–atmosphere system? Are two successive El Niño events independent, or are they part of a continual (perhaps weakly damped) cycle sustained by random atmospheric disturbances? How important is energy dissipation for ENSO dynamics? These closely related questions are frequently raised in connection with several climate problems ranging from El Niño predictability...

A series of tsunami-like waves of non-seismic origin struck several southern European countries during the period of 23 to 27 June 2014. The event caused considerable damage from Spain to Ukraine. Here, we show that these waves were long-period ocean oscillations known as meteorological tsunamis which are generated by intense small-scale air pressure disturbances. An unique atmospheric synoptic...

Effects of blowdown, salvage logging, and wildfire on regeneration and fuel characteristics in Minnesota's forests" (2011). ABSTRACT The patchiness resulting from a sequence of recent disturbances – blowdown, salvage logging, and wildfire – provided an excellent opportunity to assess the impacts of these disturbances, singly and in combination, on (1) wildfire severity (2) post-disturbance vege...

Investigation of coupling mechanisms between the troposphere and the ionosphere requires a multidisciplinary approach involving several branches of atmospheric sciences, from meteorology, atmospheric chemistry, and fulminology to aeronomy, plasma physics, and space weather. In this work, we review low frequency electromagnetic wave propagation in the Earthionosphere cavity from a troposphere-io...

Among other atmospheric regions, ionosphere, which is ionized region of the atmosphere, is considered to impose serious limitations on satellite communication while the effect of other layers, more especially, the troposphere is often treated as negligible. At higher frequencies, radio waves pass through the ionosphere and are attenuated due to the free electrons present in ionosphere. However,...

[1] The North American monsoon is a key feature affecting summer climate over Southwestern North America. During the monsoon, evapotranspiration from the Southwest promotes transference of water to the atmosphere which is subsequently distributed across the continent linking the SW to other regions via atmospheric hydrologic connectivity. However, the degree to which atmospheric connectivity re...

This study addresses the origin of the synoptic-scale disturbances that occur in the tropical western North Pacific ocean (WP) region in Northern Hemisphere summer. These have been called ‘‘easterly waves’’ and ‘‘tropical depression–type’’ (TD) disturbances. This analysis uses the National Center for Environmental Prediction–National Center for Atmospheric Research reanalysis dataset. By perfor...

the present study was conducted to see the effect of non-specific genital infections and ovulatory disturbances on clinical signs of oestrusnamely oestrus duration, tonicity of uterus, relaxation of cervix and persistence of follicle. the mean values of oestrus duration, tonicity of uterus and relaxation of cervix varied significantly (p

Atmospheric properties have a significant influence on electromagnetic (EM) waves, including the propagation of EM signals used for remote sensing. For this reason, changes in received amplitudes and phases these can be detection atmospheric disturbances and, consequently, their investigation. Some most important sources temporal space variations parameters come from outer space. Although solar...

Abstract The violent eruption of Hunga Tonga-Hunga Ha’apai volcano on January 15, 2022 induced strong atmospheric disturbances, which traveled around the world as Lamb waves. When this wave passed through superconducting gravimeter station at Matsushiro, Japan, a large signal gravity changes was recorded. Also, barometers installed Matsushiro recorded trains pressure changes. Analysis barometer...