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ESTIMATION OF SOURCE PARAMETERS OF LOCAL .4 EARTHQUAKES IN THE ENVIRONS OF KOLDAM SITE

Sat, 01 Jun 2013 00:00:00 GMT

Title: ESTIMATION OF SOURCE PARAMETERS OF LOCAL .4 EARTHQUAKES IN THE ENVIRONS OF KOLDAM SITE Authors: Kumar, Paidi Vinodh Abstract: The Koldain site falls in the 1-limachal Lesser Himalaya in the vicinity of the Main Boundary Thrust. The Main Central Thrust is located about 80 km northeast of the dam site. The region around Koldam site is marked by the occurrence of moderate to largesized earthquake activity. In this study hypocenter parameters and source parameters of 70 local events (l.3M3.7) have been interpreted from the local earthquake data collected from the region employing a 5-station temporary network. Source parameters of events have been estimated adopting Brune model and using digital data from single station recordings. The seismic moments (M0), source radii and Brune stress drops (z\) vary from 9.83x 1017 dyne-cm to 4.77x 1021 dyne-cm, 132 m to 633 in, and 0.08 bars to 30 bars respectively. Other estimated parameters of local events include: rms stress drops, apparent stress, and/, rms stress drops vary from more than one bar to about 40 bars and were not found to be correlated with Brune stress drops. For majority of events, apparent stress and Brune stress drops are found to be correlated and follow the relation: Ta (bars) = 4.47A °89 The maximum stress drop of 30 bars is observercl at a depth of about 15 km. Apparent stress and Brune stress drops have almost same distribution with focal depths. Maximum envelope encompassing Brune stress drops show an increasing trend with focal depths upto focal depths of 20 km and then shows a decreasing trend and seems to be related to the strength of the crust. The estimates of radiated seismic energy vary from l.lxlo'' to 2.2x 10' and following the relation E (crgs) = 2x10 17 M0(dyne_cm)15. The source radii increased with seismic moments The values of J - < vary from 4.7 Hz to 15.6 I-Iz respectively. The corner frequency, f, and .tax follow almost same trend and decrease with seismic moments. Based on the local earthquake data, two scaling relations: M0 (N-rn/see3) = lxlO15 ç33 (between M0 and corner frequency) and frnax (Hz) = 314.28M&°°79 (between fmax and M0) are proposed for the region studied. These relations can be adopted to constrain the strong ground motion.

Investigation the weaving craft of Kerala and exploring application in space-making

Wed, 01 May 2024 00:00:00 GMT

Title: Investigation the weaving craft of Kerala and exploring application in space-making Authors: Dongre, Isha Pramod

UNDERSTANDING THE ROLE OF RITUALISTIC ART FORM IN PLACE MAKING: A STUDY OF THEYYAM

Wed, 01 May 2024 00:00:00 GMT

Title: UNDERSTANDING THE ROLE OF RITUALISTIC ART FORM IN PLACE MAKING: A STUDY OF THEYYAM Authors: Viayan, Anusha

POLICY PLANNING FOR SUSTAINABLE LAND DEVELOPMENT IN GOA STATE, INDIA

Mon, 01 Apr 2024 00:00:00 GMT

Title: POLICY PLANNING FOR SUSTAINABLE LAND DEVELOPMENT IN GOA STATE, INDIA Authors: Jindal, Saurabh Abstract: The land market in urban peripheral areas is critical for distributing land for urbanization, yet it frequently results in social exclusion and inefficient land distribution. The rising expenses of urban infrastructure and services stymie private urban sprawl developments and raise environmental concerns. In an urban context, two viable extension strategies are to increase the holding capacity of current urban areas or extend the urban area beyond its boundaries. Re-densification, which enhances storage capacity, causes inadequate infrastructure and environmental degradation. Land development plans prioritize multifamily building typologies, increased densities, job and educational possibilities, housing affordability, public services, health facilities, and infrastructure. However, the challenges of social inclusion, proper value, displacement and relocation, controlled land use development, environmental repercussions, infrastructural upgrades, and equitable disposition of improved land are major obstacles in the process of Sustainable Land Development. Moreover, Sustainable Development and Land Policies are well-researched and acknowledged global subjects. Since the United Nations Conference on Environment and Development, 1992, sustainable development has been promoted. The 2015 Sustainable Development Goals tackle several issues, including the threat posed by climate change, gender equality, managing natural resources, better health, fighting against poverty, promoting peace, and an inclusive society. This study attempts to review the literature on applying integrated approaches to Land Development Policy. However, recent research indicates that an integrated approach to land development is still lacking in achieving the Sustainable Development Goals (SDGs). It will be difficult to meet Goal 11 of the Sustainable Development Goals: “Make cities and human settlements inclusive, safe, resilient, and sustainable,” unless those issues are resolved. Thus, it has become crucial to employ the System Dynamics technique to recognize and gain a deeper understanding of the dynamic behavior of the system, i.e., the interconnection and interdependence of the complex systems and subsystems (physical, social, economic, infrastructure, environment, ecosystem, and institutional) in the context of land development. In order to attain the goal of sustainable development, land development sustainability needs to be evaluated using quantitative methods and models in addition to the systematic framework of land development. In this regard, amethodology has been developed to assess the policies for land development to address the complex challenges of cities for sustainable development.