World population in a grid of spherical quadrilaterals

"We report on a project that converted subnational population data to a raster of cells on the earth. We note that studies using satellites as collection devices yield results indexed by latitude and longitude. Thus it makes sense to assemble the terrestrial arrangement of people in a compatible manner. This alternative is explored here, using latitude/longitude quadrilaterals as bins for population information.... The results to date of putting world boundary coordinates together with estimates of the number of people are described. The estimated 1994 population of 219 countries, subdivided into 19,032 polygons, has been assigned to over six million five minute by five minute quadrilaterals covering the world."     

The geography of highly skilled international migration

"The present paper provides a research review of recent literature on international migration by the highly skilled. Its principal aim is to identify the themes which are being discussed, and suggest where research into the subject might best proceed.... [The authors outline] the two most important perspectives in extant research, economic and socio-cultural, [and review] what is known about the geography of migration by the highly skilled.... The paper proposes...a reconceptualisation of migration by the highly skilled as one element in the international movement of expertise."     

Study of annual mass balance(2011–2013) of Rikha Samba Glacier,Hidden Valley,Mustang, Nepal

Although Himalayan glaciers are of particular interest in terms of future water supplies, regional climate changes, and sea-level rises, little is known about them due to lack of reliable and consistent data. There is a need for monitoring these glaciers to bridge this knowledge gap and to provide field measurements necessary to calibrate and validate the results from different remote sensing operations. Therefore, glaciological observations have been carried out by the Cryosphere Monitoring Project(CMP) since September 2011 on Rikha Samba Glacier in Hidden valley, Mustang district in western Nepal in order to study its annual mass balance. This paper presents the first results of that study. There are 10 glaciers in Hidden Valley, named G1, G2, G3, up to G10. Of these, G5 is the Rikha Samba Glacier, which has the largest area(5.37 km2) in this valley and the highest and lowest altitudes(6,476 and 5,392 m a.s.l., respectively). The glacier mass balance discussed in this paper was calculated using the glaciological method and the equilibrium line altitude(ELA). The glacier showed a negative annual point mass balance along the longitudinal profile of its lower part from September 10, 2011 to October 3, 2012. Stake measurements from October 4, 2012 to September 30, 2013 indicated a negative areal average of annual mass balance-0.088±0.019 m w.e. for the whole glacier. Based on these observations, the ELA of the Rikha Samba Glacier is estimated at 5,800 m a.s.l. in 2013. This negative balance may be due to rising air temperatures in the region, which have been incrementally rising since 1980 accompanied by little or no significant increase in precipitation in that period. The negative mass balance confirms the general shrinking trend of the glacier.     

Neoarchaean-Palaeoproterozoic Mafic Dyke Swarms from the Singhbhum Granite Complex,Singhbhum Craton,Eastern India: Implications for Identification of Large Igneous Provinces and Their Possible Continuation on Other Formerly Adjacent Crustal Blocks

正The Singhbhum craton of the eastern India consists of the Singhbhum Granite Complex(SGC)and the Chotanagpur Gneissic Complex(CGC)separated by the Singhbhum Mobile Belt(SMB).The CGC is intruded by Mesoproterozoic as well as Cretaceous mafic dykes;in     

Role of Multi-Generation Dyke Emplacements in Moyar-Bhavani Shear Zone,South India

正The Moyar-Bhavani Shear Zone(MBSZ)of the South Indian Granulite Terrain(SIGT),a complex continental block formed by the accretion of various crustal units during the Archaean to Neoproterozoic,bear evidences of     

Mineralogy,Geochemistry and Palaeomagnetism of Mafic Dykes from Kumaun Lesser Himalaya: Implication on Petrogenesis,Tectonic Setting and Timing of Mafic Magmatism in Northern Part of Indian Lithosphere

正Occurrence of mafic dykes in Himalaya has been intriguing and debated since long because of its difficulty to ascent and emplacement through a thickened crust.Mafic dykes in Kumaun Lesser Himalaya(KLH)of central Indian     

使用威斯特波克射电望远镜对古代东方“客星”射电遗迹的探测

作者使用威斯特波克射电望远镜在610兆赫频率上对古代东方天文学家观测到的“客星”的七个视场区(1~o.5×1~o.5)进行了射电遗迹的巡天探测,结果没有发现弥漫射电辐射。本文给出了在这些视场区中的分立射电源的表,表中列出作者提出的这些射电源|b|<15°以內的光学证认。     

THE OROGENIC MOVEMENTS IN CHINA

I approach the subject of this address with a good deal of diffidence. For during the last years I have not done any geological work and am therefore not only unfamiliar with geological literature in general, but even out of touch with the work done by my old colleagues in the Survey. Then     

NOTES ON THE STRATIGRAPHY OF THE SPIRIFER TINGI BEDS OF KUEITING.

The corals described by Dr. Grabau in the preceding pages came from a place 350 m W. of the village of Machiat(?)un, which is situated 11.7 kilometers east of the district city of Kueiting in Kweichow province. The specimens from locality T107 were found in situ and those from T107a were collected from the slabs used for pavement right besides locality T107.