We analyse a sunspot simulation in an effort to understand the origin of convective instabilities giving rise penumbral and umbral distinct regimes. applied criterion from Gough \& Tayler (1966), accounting for stabilising effect vertical magnetic field investigate MURaM simulation. find: (1) highly unstable shallow layer right beneath surface extending all over box which convection is triggere...

We present a new crustal cross section through the east-west trending ultrahigh-pressure (UHP) Dabie Shan orogenic belt, east central China, based on a 400km-long seismic refraction profile. Data from our profile reveal that the cratonal blocks north and south of the orogen are composed of 35-km-thick crust consisting of three layers (upper, middle, and lower crust) with average seismic velocit...

From 1995-1998, we tracked movements of adult Swainson's Hawks (Buteo swainsoni) using satellite telemetry to characterize migration, important stopover areas, and austral summer movements. We tagged 46 hawks from July - September on their nesting grounds in seven U.S. states and two Canadian provinces. Swainson's Hawks basically followed three routes south on a broad front, converged along the...

The current study included interpretations of the three-dimensional seismic survey data Najaf-Karbala region, which was recently implemented by Fifth Amphibious Seismic crew Oil Exploration Company for period from 30/1/2016 to 13/10/2017. total area planned be covered program about (3340 km ²). Zubair reflector picked, interpreted, and tracked within region. faults affecting this were captured....

As widespread deserts is located in west and southwest of Iran plateau, dust storms form due to west andsouthwest systems over Syria or Iraq as well as Arabian Peninsula. These systems severely affect west and southwestregions. Sometimes the fine dusts transmit to central, north east, and east regions. In this study for investigating dustysynoptical patterns, meteorological data at 5 synoptic s...

We report new data about mayfly diversity from a 85 km area in East Kalimantan (Borneo, Indonesia). More than 40 mayfly genera have been collected in a lowland Dipterocarpaceae forest. They belong to the following families (by decreasing diversity order): Baetidae (12), Leptophlebiidae (7), Caenidae (6), Heptageniidae (5), Ephemerellidae (2), Potamanthidae (2), Teloganodidae (2), Isonychiidae (...

The Alaska Volcano Observatory's lightning detection system detected and located 171 lightning strokes during the August 18, 1992, eruption of the Crater Peak vent of Mount Spurr volcano in Alaska. The strokes, predominantly intracloud, were detected during a 70-minute interval that began more than an hour into the eruption. All detected strokes were of positive polarity. The spatial distributi...

The (Mw6.1, 7.3, 6.2) 1992 Landers earthquakes began on April 23 with the Mw6.1 1992 Joshua Tree preshock and form the most substantial earthquake sequence to occur in California in the last 40 years. This sequence ruptured almost 100 km of both surficial and concealed faults and caused aftershocks over an area 100 km wide by 180 km long. The faulting was predominantly strike slip and three mai...