China, a country that occupies a vast territory with a diverse climate, varied topography and great variety of flora and fauna, is situated in the southeastern Asia. Its land extends from longitude 73 0 E to 135 0 E, a stretch of over 3,200 miles. From north to south, it spans from latitude 53 0 N to 4 0 N, covering a distance of 3,400 miles. The varied climate crosses frigid, temperate, subtro...

The Udhampur district lies in the northernmost portion of India, approximately at 75” 7’ to 75” 10’ longitude east and 33” 54’ to 33” 57’ latitude north in the State of Jammu and Kashmir. The total area of the district is 2549 km2; it has a hilly topography ranging from 300 m to 2780 m above sea level. The region consists of limestone, quartzites, grit and earthy clay. The soil is sandy except ...

The effects of thermospheric winds and electric fields on the ionospheric FZlayer are controlled by the geometry of the magnetic field, and so vary with latitude and longitude. We adopt a simple model of the daytime F2-layer and study the effects at midlatitudes (25O-65” geographic) of three processes that accompany geomagnetic storms : (i) thermospheric changes due to aurora1 heating; (ii) equ...

The at-haulback mortality of swordfish (Xiphias gladius), a highly migratory fish, in the Indian Ocean during tuna longline fishery is concern Tuna Commission Fisheries Management. We obtained data 1144 recorded 1925 operations by Chinese observers from 2012–2018. A generalized linear model was used to analyze and potential influencing factors. overall rate 64.0%, average female size 166.3 cm (...