Incremental evolution and devolution of Florida's Coastal High Hazard Area policy

2009 ◽  
Vol 52 (3) ◽  
pp. 297-313 ◽  
Author(s):  
Ana Puszkin-Chevlin ◽  
Ann-Margaret Esnard
2020 ◽  
Author(s):  
Sengphrachanh Phrakonkham ◽  
So Kazama ◽  
Komori Daisuke

Abstract. In the past few decades, various natural hazards have occurred in Laos. To lower the consequences and losses caused by hazardous events, it is important to understand the magnitude of each hazard and the potential impact area. The main objective of this study was to propose a new approach to integrating hazard maps to detect hazardous areas on a national scale, for which area-limited data are available. The integrated hazard maps were based on a merging of five hazard maps: floods, land use changes, landslides, climate change impacts on floods and climate change impacts on landslides. The integrated hazard map consists of 6 maps under 3 representative concentration pathway (RCP) scenarios and 2 time periods (near future and far future). The analytical hierarchy process (AHP) was used as a tool to combine the different hazard maps into an integrated hazard map. From the results, comparing the increase in the very high-hazard area between the integrated hazard maps of the far future under the RCP2.6 and RCP4.5 scenarios, Khammouan Province has the highest increase (16.45 %). Additionally, the very high-hazard area in Khammouan Province increased by approximately 12.47 % between the integrated hazard maps under the RCP4.5 and 8.5 scenarios of the far future.


2017 ◽  
Vol 2017 (1) ◽  
pp. 1784-1794
Author(s):  
Greg McGowan ◽  
Michael Algots ◽  
Josh Gravenmier

ABSTRACT 2017-427 Geographic Response Plans (GRPs) are a key tool in response preparedness, but are limited in inland settings, especially in remote areas. Development of a GRP for 200 miles of the Feather River in California required consideration of highly variable seasonal flow conditions, extremely limited access, and numerous sensitive ecological and cultural resources. This setting required adjustments to the typical prioritization of GRP response strategies based on the sensitivity of potentially exposed resources at risk, and instead increased focus on access and infrastructure locations in relation to natural and man-made collection areas. With a highway on one side of the steep-walled canyon, and a state-designated “high-hazard area” for the railroad line on the other, the GRP also needed to consider a wide variety of potentially released material types and source points. The scoping and GRP development was led by a steering committee including the Union Pacific Railroad and BNSF Railway, the U.S. EPA (Region 9), CA Department of Fish and Wildlife Office of Oil Spill Prevention and Response (OSPR), ARCADIS, and numerous regional and local organizations as well as response contractors. The resulting GRP is a pragmatic document that provides critical response information to optimize the efficiency and effectiveness of the first 24 – 48 hours of incident response in this challenging environment. This paper discusses the challenges faced and the resultant strategic measures addressing limited access, fast-water booming, resource mapping, and other critical planning parameters to develop a pragmatic and effective GRP.


2020 ◽  
pp. 190
Author(s):  
Ninda Irmayanti ◽  
Indayati Lanya ◽  
Ni Wayan Febriana Utami

Urban zoning based of flood disaster mitigation (case study in Denpasar City). Denpasar City has been experienced a calamitous event such as flooding or inundating caused by development activities and topographical conditions of urban areas which prone to risk to flood disasters. Therefore, urban planning inDenpasar City needs to be handled by developing the concept of flood mitigation approach by considering the level of risk and the characteristics of the city of Denpasar. The purpose of this research was to developzoning concept in urban areas based on flood mitigation approach. The method used in this study wasoverlaying analysis and descriptive analysis. The results showed that the level of flood vulnerability in Denpasar city was increased from 59.62% in 2015 and reached to 61.24% in 2016. The trends caused by a high rainfall during 2016 and was influenced by the hydrogeological characteristics, slope and land use change. Based on spatial analysis, the concept of flooding mitigation formed as follows: 1) high hazard zone(refers to the concept of disaster mitigation in a high hazard area); 2) Medium hazard zone (referring to the concept of disaster mitigation in medium hazard area); 3) Low hazard zone (referring to the concept ofdisaster mitigation in low hazard area). In conclusion it recommended that the government and thecommunity need to work together while maintaining the environment and monitoring the use of space in the urban area. Further research is needed related to hydraulic conditions so that results are more valid.


2021 ◽  
Vol 21 (5) ◽  
pp. 1551-1567
Author(s):  
Sengphrachanh Phakonkham ◽  
So Kazama ◽  
Daisuke Komori

Abstract. In the past few decades, various natural hazards have occurred in Laos. To lower the consequences and losses caused by hazardous events, it is important to understand the magnitude of each hazard and the potential impact area. The main objective of this study was to propose a new approach to integrating hazard maps to detect hazardous areas on a national scale, for which area-limited data are available. The integrated hazard maps were based on a merging of five hazard maps: floods, land use changes, landslides, climate change impacts on floods, and climate change impacts on landslides. The integrated hazard map consists of six maps under three representative concentration pathway (RCP) scenarios and two time periods (near future and far future). The analytical hierarchy process (AHP) was used as a tool to combine the different hazard maps into an integrated hazard map. From the results, comparing the increase in the very high hazard area between the integrated hazard maps of the far future under the RCP2.6 and RCP4.5 scenarios, Khammouan Province has the highest increase (16.45 %). Additionally, the very high hazard area in Khammouan Province increased by approximately 12.47 % between the integrated hazard maps under the RCP4.5 and RCP8.5 scenarios of the far future. The integrated hazard maps can pinpoint the dangerous area through the whole country, and the map can be used as primary data for selected future development areas. There are some limitations of the AHP methodology, which supposes linear independence of alternatives and criteria.


2017 ◽  
Vol 19 (1) ◽  
pp. 83 ◽  
Author(s):  
Iswandi U

<p class="JudulABSInd"><strong>                                                                                 ABSTRAK</strong></p><p class="abstrak">Peningkatan angka pertumbuhan penduduk pada suatu wilayah berdampak kepada peningkatan kebutuhan lahan untuk kawasan permukiman. Sedangkan lahan yang dapat dimanfaatkan untuk kawasan permukiman sangat terbatas. Tujuan penelitian ini untuk menentukan prioritas pengembangan kawasan permukiman pada zona rawan dan berisiko banjir. Metode yang digunakan untuk menentukan prioritas pengembangan kawasan permukiman adalah <em>overlay</em> peta kesesuaian lahan untuk permukiman, peta rawan banjir, dan peta ketersediaan lahan dengan menggunakan analisis Sistem Informasi Geografi (SIG). Hasil analisis kesesuaian lahan untuk permukiman menunjukkan terdapat 18% kawasan sangat sesuai (S1), 72% lahan sesuai (S2), 6,2% lahan sesuai marjinal (S3), dan 0,4% lahan tidak sesuai (N) untuk permukiman. Selanjutnya, berdasarkan zona kerawanan banjir sebesar 13,7% wilayah penelitian memiliki tingkat kerawanan tinggi, sebesar 14,7% zona kerawanan sedang, dan 71,5% zona kerawanan rendah. Selain itu, berdasarkan ketersediaan lahan untuk permukiman, lahan yang tersedia untuk pengembangan kawasan permukiman sekitar 6%. Analisis prioritas pengembangan kawasan permukiman menghasilkan sembilan tingkatan prioritas pengembangan kawasan permukiman. Berdasarkan prioritas pengembangan kawasan permukiman diharapkan masyarakat lebih membangun pada kawasan yang paling diprioritaskan untuk kawasan permukiman.</p><p><strong>Kata kunci:</strong> <em>k</em><em>awasan prioritas, permukiman, lahan tersedia</em></p><p class="judulABS"><em><strong>                                                                                  ABSTRACT</strong></em></p><p class="Abstrakeng"><em>Growth population rate in a region has affected the escalation of land necessity for residential areas. Meanwhile, the land that utilized for residential areas is very limited. The purpose of this research is to determine the development priorities of residential areas on flood hazard and risks zone. The method used to determine the priority is overlaid the land suitability for resindetial map, flood hazard map, and the land availability map by using analysis from Geographical Information System (GIS). Results of land suitability for resindetial analysis showed that there are 18% of the area is very suitable (S1) for residential, 72% were suitable for residential (S2); 6,2% were marginally suitable for residential (S3); and 0,4% were unsuitable for resindetial (N). Furthermore, approximately 13,7% of the research area has a high hazard area, 14,7% were moderate hazard area, and 71,5% are low hazard area. Based on land availability for residential,  available land for develop residential area is about 6%. The development priorities analysis for residential area produces nine levels of residential area development priorities. Based on those, society could build residential in the most prioritized area.</em></p><p><strong><em>Keyword</em></strong><em>: priority areas, residential, land </em><em>availability</em><em></em></p>


1999 ◽  
Author(s):  
M.L. Jones ◽  
S. Reynolds ◽  
C. Zwerling ◽  
W. Popendorf
Keyword(s):  

1987 ◽  
Vol 39 (4) ◽  
pp. 390-396 ◽  
Author(s):  
Karl J. Eidsvik
Keyword(s):  

2021 ◽  
Vol 43 (1) ◽  
pp. 22-38
Author(s):  
Justine Ramage ◽  
Leneisja Jungsberg ◽  
Shinan Wang ◽  
Sebastian Westermann ◽  
Hugues Lantuit ◽  
...  

AbstractPermafrost thaw is a challenge in many Arctic regions, one that modifies ecosystems and affects infrastructure and livelihoods. To date, there have been no demographic studies of the population on permafrost. We present the first estimates of the number of inhabitants on permafrost in the Arctic Circumpolar Permafrost Region (ACPR) and project changes as a result of permafrost thaw. We combine current and projected populations at settlement level with permafrost extent. Key findings indicate that there are 1162 permafrost settlements in the ACPR, accommodating 5 million inhabitants, of whom 1 million live along a coast. Climate-driven permafrost projections suggest that by 2050, 42% of the permafrost settlements will become permafrost-free due to thawing. Among the settlements remaining on permafrost, 42% are in high hazard zones, where the consequences of permafrost thaw will be most severe. In total, 3.3 million people in the ACPR live currently in settlements where permafrost will degrade and ultimately disappear by 2050.


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