Prospective Cohort Study


 The spectral ratio between horizontal and vertical components (H/V ratio) of microtremors measured at the ground surface has been used to estimate fundamental periods and amplification factors of a site, although this technique lacks theoretical background. The aim of this article is to formulate the H/V technique in terms of the characteristics of Rayleigh and Love waves, and to contribute to improve the technique. The improvement includes use of not only peaks but also troughs in the H/V ratio for reliable estimation of the period and use of a newly proposed smoothing function for better estimation of the amplification factor. The formulation leads to a simple formula for the amplification factor expressed with the H/V ratio. With microtremor data measured at 546 junior high schools in 23 wards of Tokyo, the improved technique is applied to mapping site periods and amplification factors in the area.

Ground Motion Characteristics Estimated from Spectral Ratio between Horizontal and Verticcl Components of Mietremors.

Interpretation theory in applied geophysics: Grant, F S ... Interpretation theory in applied geophysics Unknown Binding – January 1, 1965 5.0 out of 5 stars 1 rating. See all formats and editions Hide other formats and editions. The Amazon Book Review Book recommendations, author interviews, editors' picks, and more. Read it now. Enter your mobile number or email address below and we'll send you a ...

Interpretation Theory in Applied Geophysics Grant (McGraw-Hill, 140s.)

Lunar sourcebook. A user's guide to the moon

Ground penetrating radar (GPR) is a tool for indirectly looking at underground objects (such as graves), gravel and sand layers, and other underground structures. The information or data received by GPR is like an x-ray or map of the underground. In fact, GPR uses electromagnetic (EM) waves, as xray machines do, but GPR uses radio waves, which have a longer wavelength (see Figure A1). The wavelength, or the length of one wave, is the fundamental difference between the forms of electromagnetic energy. For example, the wavelength of x-rays range from about 10 billionths of a meter to about 10 trillionths of a meter, whereas radio waves can be a few meters long.

Ground Penetrating Radar

/pdf/time-lapse-parsimonious-refraction-interferometry-a-field-36j58somo6.pdf

Time-lapse parsimonious refraction interferometry: A field experiment

Date processing for Lunar Penetrating Radar of Chang'E-4 based on variational mode decomposition

Community-based natural resource management (CBNRM) originally aimed to promote nature conservation through community empowerment, but this aim is not easy to achieve. To analyze the reasons and propose responses, this paper constructed an analytical framework for CBNRM based on the theory of socio-ecological system synergies. A mixed-method (questionnaires, interviews, and observations) explanatory case study of Feicui village within the Mount Huangshan World Natural Heritage Site in Eastern China was conducted. The research illuminates the complexity of the CBNRM initiative in Feicui village, which neglects socio-ecological system synergies, leading to a lack of connection between the benefits from and attitudes toward natural conservation and a loss of integrated resource management. This study responds to the incomprehensibility of CBNRM and provides important theoretical contributions to international debates on CBNRM by highlighting the essence of recognizing system synergies to avoid deviating from the original intent of CBNRM.

Synergizing a socio-ecological system: reflections on community-based natural resource management at the World Heritage Site of Mount Huangshan, China

Abstract Although the World Heritage Sustainable Tourism Programme has great potential for addressing the Sustainable Development Goals, it faces a continual lack of on-the-ground community-level tools. This paper explores the potential for community-level intervention to guide the evolution of rural landscapes under the World Heritage Sustainable Tourism Programme. This community-level intervention comprises three phases (knowledge coproduction, perspective planning and community action) and nine stages (village representative assembly, internalising knowledge workshop, field trip and casual interviews, knowledge demonstration, joint fieldwork, perspective discussions, tangible landscape element design, intangible landscape element coordination, and effectiveness evaluation). Our case study, Dragon Tail Village, reveals that community-level interveners should facilitate community development by recognising the important role of rural communities—co-owners of heritage sites—and rural landscapes—sets of attributes with heritage value. Our findings therefore improve the understanding of the World Heritage Sustainable Tourism Programme’s driving rationale for community development.

How does the World Heritage Sustainable Tourism Programme guide the evolution of rural landscapes?

We thank the sponsors of the CSIM consortium for their financial support. We also thank the KAUST supercomputing center for use of their supercomputer.

/pdf/robust-imaging-methodology-for-challenging-environments-wave-34lxurd7he.pdf

Jing Li

Papers

Time-lapse parsimonious refraction interferometry: A field experiment

Date processing for Lunar Penetrating Radar of Chang'E-4 based on variational mode decomposition

Synergizing a socio-ecological system: reflections on community-based natural resource management at the World Heritage Site of Mount Huangshan, China

How does the World Heritage Sustainable Tourism Programme guide the evolution of rural landscapes?

Robust Imaging Methodology for Challenging Environments: Wave Equation Dispersion Inversion of Surface Waves