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The seismicity of central and north-east Himalayan region

Abstract

The Himalayan range extends upto 2400 km arc from Indus river valley in the west to Brahmaputra river valley in the east of India. Due to distinct geological structures of Himalayan seismic belt, seismicity in Himalaya is inhomogeneous. The inhomogeneity in seismicity is responsible for a number of seismic gaps in the Himalayan seismic belt. Thus Iin the present study, we proposed the study of spatial and temporal evolution of seismicity in entire central and north-east Himalayan region by using Gutenberg-Richter relationship. A detailed study on the behavior of natural seismicity in and around the seismic gap regions is carried out. The study region is segmented in four meridional regions (A) 80°E to 83.5°E, (B) 83.5°E to 87.5°E, (C) 87.5°E to 90°E and (D) 90°E to 98°E along with a fixed latitude belt. The homogeneous catalogue with 3 ≤ Mb ≤ 6.5 is used for the spatial and temporal analysis of seismicity in terms of b-value. It is find out that pockets of lower b-values are coinciding over and around stress accumulated regions. The observed low b-value before occurrence of the Nepal earthquake of 25th April, 2015 supports the argument of impending occurrence of moderate to large magnitude earthquake in Sikkim and north-east Himalayan region in future.

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Microclimate Evaluation of the Hradec Králové City using HUMIDEX

Abstract

Urban environment differs from the surrounding landscape in terms of the values of meteorological parameters. This is often referred to as the urban heat island (UHI), which in simple terms means higher air temperatures in cities. The cause of these changes lies in the different active surfaces in cities, which subsequently results in a different radiation balance. The higher temperatures, however, also affect the living conditions in the city and during very high temperature periods can have negative effects on the health of the city inhabitants. The results presented in this paper are based on measurements taken over several years at locations near Hradec Králové, which is surrounded by different surface areas. Environment analysis was performed using the Humidex index. The obtained results show that replacing green areas with built-up areas affects temperatures in the city, when air temperatures are very high they significantly increase the discomfort of the inhabitants. Differences in the frequency of discomfort levels are observed especially during periods of high temperatures, at lower temperatures these differences are not significant. Higher frequencies of discomfort are observed at locations with artificial surfaces (asphalt, cobblestones, concrete) and in closed spaces. In contrast, locations with lots of green areas almost always have the value of this index lower or more balanced. The results should therefore be a valid argument for maintaining and extending green areas in cities.

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Is climatic regionalization in frame of estimated pedologic-ecological system actual in 21st century?

Abstract

Climatic variables defining climatic regions of estimated pedologic-ecological system (EPEU) were calculated based on fifty-year climatic data from 1961 to 2010. Obtained results were subsequently compared to intervals determining individual climatic regions defined by previous climatic data (1901-1950). In many agricultural intense areas sum of air temperature and mean air temperature exceeded upper limit. In terms of precipitation it is especially noticeable in the wet (higher) altitudes. Significant volatility was found for probability of dry periods from April to September. The values of the moisture certainty from April to September for the period 1961-2010 reached to several tens. In the final analysis, the only safe prediction is that the present and future are likely to be very different from the past. It is necessary to take it into account for actualization of EPEU methodology. Among the strongest arguments justifying the need of this actualization is in particular climate development since 1901, technological progress and improved measurement technology as well as automation and development of climate models coupled with simulations of complex characteristics and estimates of future climate. It is evident that the development of climate and other factors have an enormous impact on soil fertility. This should be also taken into consideration when fixing the official price. It is necessary to consider the possible replacement of the existing characteristics by more suitable (for example soil moisture balance). The findings might be summarized in few words: old climatic regions do not reflect actual climatic conditions.

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An optimal multiscale approach to interpret gravity data using successive decomposition of the Bouguer anomaly

No 39. Office National des Mines. Tunisie. Fedi M., Florio G., 2001: Detection of potential fields source boundaries by enhanced horizontal derivative method. Geophysical Prospecting, 49 , 40–58. Ghanmi M., Vila J. M., Ben Youssef M., Jouirou M., Ben Kherouf F., 2000: Le matériel triasique interstratifié dans l’Albien de l’anticlinal autochtone atlasique du Jebel Takrona (Tunisie): Stratigraphie Arguments gravimétriques signification dans la transversale N–S des confins algéro-tunisiens (Maghreb du Nord-Est). Bulletin Sciences Histoires Naturelles

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Regional and local phenomena influencing the thermal state in the Flysch belt of the northeastern part of Slovakia

-113. Jankowski J., Jožwiak W., Vozár J., 2008: Arguments for ionic nature of the Carpathian electric conductivity anomaly. Acta Geophysica, 56, 2, 455-465. Karwasiecka M., Bruszewska B, 1997: Surface heat flow density in the region of Poland. Centrálne Archivům Geologiczne. Warszawa. Manuscript 21/98 (in Polish). Konečný V., Kováč M., Lexa J., Sefara J., 2002: Neogene evolution of the Carpatho- Pannonian region: an interplay of subduction and back-arc diapiric uprise in the mantle. EGU Stephan Mueller Special Publication Series, 1, 105

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Topographic surface modelling using raster grid datasets by GMT: example of the Kuril–Kamchatka Trench, Pacific Ocean

-quality mapping. The flexibility of the usage of the GMT modules for data modelling proves it to be an excellent tool set for the geomatics and cartographic data visualization. The GMT compatibility with Unix commands enables a cartographer to insert echo, rm Unix commands directly in the GMT code and to integrate GMT data modelling with further data processing to Matlab. Unix echo is a command available in shell Unix scripts. Its meaning is as follows. It puts the string texts passed as arguments to the visualization on the computer screen or printed output. In other words

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Disentangling the nexus of global intermediaries: the case of bus rapid transit

proliferation of private vehicle use, the denigration of public space and unequal access to transport systems. Indeed it is regrettable that some of these auspicious bus projects have failed to result in a higher-quality system of public transport (e.g. TranSantiago in Chile) and yet few of the discouraging lessons circulate ( Gilbert 2002 ). The arguments in this paper are grounded within the policy mobilities scholarship ( McCann & Ward 2011 ; Peck & Theodore 2015 ), drawing as well on relevant debates on knowledge exchange from political science, communications and

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The rhetoric and reality of public participation in planning

planning system’ ( Rydin 1986 : 28). The debate over land availability has intensified over recent decades with, in general, builder-developers arguing that the planning-system restricts their ability to obtain a basic factor of production and that development controls inflate the price of land and, therefore, of houses. The main building pressure group, the Home Builders Federation, has extended the argument on behalf of its members to contend that planners are frustrating households’ home-ownership ambitions and threatening the livelihood of small builders, as well as

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A model of the analysis of the dynamics and structure of socio-economic development (an example of the set of the largest Polish cities in the years 1998–2015)

. & Klusacek P. 2010 Population decline in Polish and Czech cities during post – socialism? Looking behind the official statisics Urban Studies 47 11 2325 2346 Szukała, M. (2015) 4ELT. Innowacyjny, zintegrowany program nauczania w klasach I-III Trening twórczości 4ELT, Poznan [in Polish]. Szukała M. 2015 4ELT. Innowacyjny, zintegrowany program nauczania w klasach I-III Trening twórczości 4ELT, Poznan in Polish Turok, I. & McGranahan, G. (2013) Urbanization and economic growth: the arguments and evidence for Africa and Asia Environment

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Measuring citizen participation in urban regeneration: a reflection on the construction of the participation index for the Bip/Zip programme in Lisbon

area’ ( Brannan, John & Stoker 2006 : 1001). On the contrary, anecdotal evidence, compounded by a general lack of adequate description of the designs and methods used in participatory processes in favour of a more normative statement on citizen participation as good per se , is often found in this field of study. Scientific knowledge frequently produces arguments based on a self-evident legitimation of participatory processes and, as highlighted by L. Häikiö (2012: 432) , ‘discursive structures presented in scientific texts have an effect on the ways legitimate

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