Shoreline Change of the Mucuripe Harbour Zones (Fortaleza-Ceará, Northeast of Brazil) 1972 - 2003

4区地球科学 Q3 Earth and Planetary Sciences

Journal of Coastal Research Pub Date : 2024-03-29 DOI:10.2112/jcr-si50-210.1

M.O. Bezerra, L. Pinheiro, J.O. Morais

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引用次数: 6

Abstract

BEZERRA, M.O., PINHEIRO, L. and MORAIS, J.O. 2007. Shoreline Change of the Mucuripe Harbour Zones (Fortaleza-Ceará, Northeast of Brazil) 1972 2003. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 1163 – 1167. Gold Coast, Australia, ISSN 0749.0208 This study analyses the space-time evolution along the Fortaleza coast over the past 31 years (1972-2003) with a special emphasis on the Mucuripe port area (Fortaleza, Ceará, Brazil) examining changes in the coastal dynamics produced by the building of the city’s port. The construction of the port’s jetty interrupted the natural feeding process of the beaches with sediment moving east to west. Sediment was blocked east of this structure leading to an erosion process to the west. This multi-temporal study is based on the analysis of aerial photographs and images from the Quickbird satellite. The objective is to determine the recent evolution of this coastline through calculation of the variation in retrograding and prograding areas. The variation of the city of Fortaleza's dunebeach interface shoreline, which concerns an extension of approximately 30 km of shoreline, revealed a prograding rate of 0.8284 km/31 years (1972/2003) and a retrograding rate of 0.0701 km/31 years (1972/2003). Analysis of images of Mansa Beach, located in the Mucuripe port basin, showed that in 1972 Mansa Beach had an area of 0.13843 km, in 1998 it increased to 0.15307 km and in 2003 it reached 0.15455 km. The analysis revealed that the changes in the shoreline are more subject to shoreline accretion. The analysed period shows a 92% accretion rate and an 8% erosion rate. The results contribute to the improved management of the Fortaleza coast. ADDITIONAL INDEX WORDS: Changes in the shoreline, Prograding, Multi-temporal study

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1972 - 2003 年 Mucuripe 港区（巴西东北部福塔莱萨--塞阿拉）海岸线变化情况

BEZERRA, M.O., PINHEIRO, L. and MORAIS, J.O. 2007.Mucuripe Harbour Zones (Fortaleza-Ceará, Northeast of Brazil) 1972 2003.Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 1163 - 1167.本研究分析了福塔雷萨海岸在过去 31 年（1972-2003 年）的时空演变，重点是 Mucuripe 港区（巴西塞阿拉州福塔雷萨市），考察了该市港口建设对海岸动力的影响。港口防波堤的修建打断了海滩沉积物自东向西移动的自然进给过程。沉积物被阻挡在该建筑以东，导致向西的侵蚀过程。这项多时段研究基于对航拍照片和 Quickbird 卫星图像的分析。其目的是通过计算后退和前移区域的变化，确定该海岸线的近期演变情况。福塔莱萨市沙丘滩界面海岸线的变化涉及约 30 公里的海岸线延伸，显示出 0.8284 公里/31 年（1972/2003 年）的前进速度和 0.0701 公里/31 年（1972/2003 年）的后退速度。对位于 Mucuripe 港口盆地的 Mansa 海滩的图像分析表明，1972 年 Mansa 海滩的面积为 0.13843 公里，1998 年增加到 0.15307 公里，2003 年达到 0.15455 公里。分析表明，海岸线的变化更多地受到海岸线增生的影响。分析期间的海岸线增加率为 92%，侵蚀率为 8%。这些结果有助于改善福塔莱萨海岸的管理。附加索引词：海岸线变化、坡度、多时研究

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来源期刊

Journal of Coastal Research 地学-地球科学综合

自引率

0.00%

发文量

审稿时长

3-8 weeks

期刊介绍： The Journal of Coastal Research (JCR) is one of the leading international journals for coastal studies and processes, and is published bi-monthly by the Coastal Education & Research Foundation [CERF]. By covering the entire field of coastal research, the JCR encompasses all subjects relevant to natural and engineered environments (freshwater, brackish, or marine) and the protection/management of their resources in the vicinity of coastlines of the world. Even though the journal broadly focuses on immediate shoreline zones, the JCR also embraces those coastal environments that either reach some indefinite distance inland or that extend seaward beyond the outer margins of the sublittoral (neritic) zone. The JCR disseminates accurate information to both the public and research specialists around the world on all aspects of coastal issues in an effort to maintain or improve the quality of our planet''s shoreline resources.