A Study on Maintenance of the Population Density and Inundation Damage Risk Reduction in the Residence Guidance Area

2021 ◽  
Vol 56 (3) ◽  
pp. 952-959
Author(s):  
Shono Sakurai ◽  
Hiroki Ogawa
Water Policy ◽  
2021 ◽  
Vol 23 (S1) ◽  
pp. 174-187
Author(s):  
Lewis E. Link

Abstract Following Hurricane Katrina, the US Army Corps of Engineers, supported in part by the risk and reliability analysis conducted by the Interagency Performance Evaluation Task Force (IPET), made a major shift from ‘protection’ to ‘risk reduction’ as the principal goal in flood mitigation. The mitigation of the flood risk in Southeast Louisiana was embodied in the design and construction of the ‘Hurricane and Storm Damage Risk Reduction System’, the post-Katrina initiative for New Orleans flood mitigation. It also spawned a major overhaul of many of the Corps of Engineers’ technical guidance and engineering practice documents, incorporating risk as a key measure in the planning and design processes. The criteria applied for the design of the HSDRRS are discussed, with summaries of the associated major changes in Corps engineering guidance and practice relevant to flood mitigation.


2021 ◽  
Author(s):  
Christina Saltus ◽  
Glenn Suir

This study used remote sensing techniques to identify and assess the current condition of bottomland hardwood (BLH) and swamp habitats within the West Shore Lake Pontchartrain (WSLP) hurricane storm-damage risk reduction system (HSDRRS) project area. This effort provides baseline knowledge of the location and quality of these habitats prior to the construction of the WSLP HSDRRS project. The resultant products will assist the USACE—New Orleans District (MVN) by informing ecosystem decision-making related to environmental assessments.


2018 ◽  
Vol 10 (9) ◽  
pp. 1378 ◽  
Author(s):  
Daniele Ehrlich ◽  
Michele Melchiorri ◽  
Aneta Florczyk ◽  
Martino Pesaresi ◽  
Thomas Kemper ◽  
...  

Exposure is reported to be the biggest determinant of disaster risk, it is continuously growing and by monitoring and understanding its variations over time it is possible to address disaster risk reduction, also at the global level. This work uses Earth observation image archives to derive information on human settlements that are used to quantify exposure to five natural hazards. This paper first summarizes the procedure used within the global human settlement layer (GHSL) project to extract global built-up area from 40 year deep Landsat image archive and the procedure to derive global population density by disaggregating population census data over built-up area. Then it combines the global built-up area and the global population density data with five global hazard maps to produce global layers of built-up area and population exposure to each single hazard for the epochs 1975, 1990, 2000, and 2015 to assess changes in exposure to each hazard over 40 years. Results show that more than 35% of the global population in 2015 was potentially exposed to earthquakes (with a return period of 475 years); one billion people are potentially exposed to floods (with a return period of 100 years). In light of the expansion of settlements over time and the changing nature of meteorological and climatological hazards, a repeated acquisition of human settlement information through remote sensing and other data sources is required to update exposure and risk maps, and to better understand disaster risk and define appropriate disaster risk reduction strategies as well as risk management practices. Regular updates and refined spatial information on human settlements are foreseen in the near future with the Copernicus Sentinel Earth observation constellation that will measure the evolving nature of exposure to hazards. These improvements will contribute to more detailed and data-driven understanding of disaster risk as advocated by the Sendai Framework for Disaster Risk Reduction.


2018 ◽  
Vol 2 (2) ◽  
pp. 98
Author(s):  
Tiffa Yuki Dewanti ◽  
Heru Sri Naryanto

ABSTRACTDepok City has a function as a water catchment in reducing flooding in Jakarta City and in Depok City itself, the existence of existing sites is very important to be maximized. At present there are only 21 small lake in Depok City whose existence is still maintained. The conditions there each year decrease both in terms of quality and quantity. There are 6 small lake in Cimanggis subdistricts, namely: Situ Gadog, Situ Pedongkelan, Situ Rawa Kalong, Situ Tipar, Situ Jemblung, and Situ Rawa Gede, which as a whole have an area of 32.4 Ha. To maintain small lake preservation in the Cimanggis sub-district, damage risk reduction is urgently needed to sustain the small lake's existence in a sustainable manner. There are 5 variables of community participation in damage risk reduction in Cimanggis sub-district. Five variables to measure the level of community participation are community participation in the form of thoughts, community participation in the form of property, community participation in the form of energy, community participation in the form of skills, and community participation in social forms. Keywords: Community participation, small lake, Cimanggis, damage risk reduction


2011 ◽  
Vol 2203 (1) ◽  
pp. 211-218 ◽  
Author(s):  
Gordon Keller ◽  
Gary Ketcheson

1976 ◽  
Vol 19 (2) ◽  
pp. 216-224 ◽  
Author(s):  
James T. Yates ◽  
Jerry D. Ramsey ◽  
Jay W. Holland

The purpose of this study was to compare the damage risk of 85 and 90 dBA of white noise for equivalent full-day exposures. The damage risk of the two noise levels was determined by comparing the temporary threshold shift (TTS) of 12 subjects exposed to either 85 or 90 dBA of white noise for equivalent half- and full-day exposures. TTS was determined by comparing the pre- and postexposure binaural audiograms of each subject at 1, 2, 3, 4, 6, and 8 kHz. It was concluded that the potential damage risk, that is, hazardous effect, of 90 dBA is greater than 85 dBA of noise for equivalent full-day exposures. The statistical difference between the overall effects of equivalent exposures to 85 dBA as compared to 90 dBA of noise could not be traced to any one frequency. The damage risk of a full-day exposure to 85 dBA is equivalent to that of a half-day exposure to 90 dBA of noise. Within the limits of this study, TTS t was as effective as TTS 2 for estimating the damage risk of noise exposure.


Haemophilia ◽  
2001 ◽  
Vol 7 (1) ◽  
pp. 64-71 ◽  
Author(s):  
J. R. Schultz ◽  
R. B. Butler ◽  
L. Mckernan ◽  
R. Boelsen ◽  

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