• Title/Summary/Keyword: Beaches

Search Result 202, Processing Time 0.028 seconds

Coastline Change on the Haeundae Beach using the Digital Aerial Photo (수치항공사진을 이용한 해운대해수욕장 해안선변화에 관한 연구)

  • Choi, Chul-Uong;Kim, Young-Seup
    • Journal of the Korean Association of Geographic Information Studies
    • /
    • v.4 no.4
    • /
    • pp.39-50
    • /
    • 2001
  • There has been considerable controversy over the changes in the size of the beaches in the Pusan area; any loss of beach area will have an immense effect on the tourism industry, which is an important source of income for the local economy. The best beaches in Korea are in the Pusan area and were visited by more than 8 million persons in 2000. It is expected that the number of visitors, drawn to the scenic vistas and convenient facilities of this area, will increase annually. Any loss in the size of these swimming beaches will have an important negative effect on tourism income. Therefore, the local governments have gone to great lengths to preserve these beaches, transporting tens of thousands of tons of sand to the beaches before they open each year at a cost of billions of won annually. In this study, we analyzed aerial photographs and tide data for the past 50 years using digital aerial photo analysis and GIS techniques for each 3-year interval. We abstracted beach DEM (digital elevation model) and ortho aerial photographs, and conducted a space analysis. As a result, we were able to identify changes in the area and width of sections of Haeundae Beach.

  • PDF

First Record of Two Gobiid Fishes, Luciogobius elongatus, L. platycephalus (Perciformes: Gobiidae) from Korea

  • Cho, Hyun-Geun;Choi, Seung-Ho
    • Animal Systematics, Evolution and Diversity
    • /
    • v.30 no.1
    • /
    • pp.22-25
    • /
    • 2014
  • Two species of small gobiid fishes genus Luciogobius, i.e., L. elongatus, L. platycephalus were described as the first records from Korea based on specimens collected from gravel beaches of Gijang-gun, Busan-si, Korea. Luciogobius elongatus is distinguished from congeners by very elongated and naked body, 42-44 vertebrae, 6-7 dorsal soft rays, and no free rays on pectoral fin, and L. platycephalus is characterized by having very depressed head, naked body, 40-41 vertebrae, 10-11 dorsal soft rays, and pectoral fin with only upper 2-4 free rays. We propose the new Korean name "Ga-neun-mi-kkeun-mang-dug", "Nab-jak-mi-kkeun-mang-dug" for L. elongatus and L. platycephalus, respectively.

Mysidacea (Crustacea) from the Sandy Beaches of the Eastern Coast of Korea with Four New Records in the Korean Waters

  • Jo, Soo-Gun;Jeon, Min-Kyoung
    • Ocean Science Journal
    • /
    • v.42 no.3
    • /
    • pp.171-178
    • /
    • 2007
  • The present study reports mysids on sandy beaches along the eastern coast of Korea. Samples were collected with a dip net or a sled net in sandy shores in April 1995 and November 2006. 9 species representing five genera were identified from the present study. Of these, the genus Nipponomysis including N. lingvura, N. ornata, and N. imparis, and Acanthomysis nakazatoi were newly recorded from the Korean waters. Morphological descriptions and taxonomic key to species were given. The present study reports that 45 species belonging to 15 genera from the Korean waters have been recorded.

Bragg Reflection on a Sloping Beach (경사지형에서의 Bragg반사)

  • Lee, Jong-In;Jo, Yong-Sik;Lee, Jeong-Gyu
    • Journal of Korea Water Resources Association
    • /
    • v.32 no.4
    • /
    • pp.447-455
    • /
    • 1999
  • In this study, the Bragg resonant of cnoidal waves propagating over a sinusoidally varying topography lying on a uniformly sloping beach is investigated. The governing equations derived from the Boussinesq equations are numerically integrated. The effects of fast varying terms and nonlinearity in reflection coefficients are also examined. Variation of reflection coefficient for different sloping beaches is studied. It is found that reflection coefficients are not strongly dependent on slopes of beaches.

  • PDF

A Status of Distributions and its Characteristics of the Geomorphological and Geological Landform Resources in Taeanhaean National Park (태안해안국립공원 해안지형과 지질 자원의 분포 현황과 특성)

  • Seo, Jong Cheol
    • Journal of The Geomorphological Association of Korea
    • /
    • v.26 no.4
    • /
    • pp.97-106
    • /
    • 2019
  • This study aims to investigate geomorphological and geological landscapes in the Taeanhaean National Park to ensure they are well-preserved. This study discovered 390 geomorphological and geological landform resources distributed in the coastal zone of Taeanhaean National Park. Representative geomorphological and geological landforms include : sea cliffs, sea caves, wave-cut platforms, sea-stacks, pebble beaches, sand beaches, tidal flats, coastal dunes, coastal dune wetlands and folds (or micro folds) landforms. Deposition landforms are developed more and erosion and weathering landforms are less on the land zone than island zone. These landform resources vary from district to district and can be developed for geo-tourism resources. Combined efforts from the Taeanhaean National Park authorities and residents are essential to manage ecological programs using geomorphological and geological resources.