• Title/Summary/Keyword: 포항시

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Distribution and Ecology of Genus Corbicula in the North Kyungsang Province I. Distribution and Classification of Genus Corbicula in the North Kyungsang Province (경상북도 재첩자원 분포 및 생태 조사 1.경상북도산 재첩선(Corbicula) 이매패류)

  • 주문규;변경숙;장명호
    • Journal of Aquaculture
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    • v.11 no.4
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    • pp.581-592
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    • 1998
  • To know on the distribution and ecological characteristics of genus Corbicula field survey made from August 1997 to July 1998 in the North Kyungsang Province. Three species, i.e. Corbicula japonica, C. leand and C. papyracea, were inhabited in the North Kyungsang Provice. C. japonica was dioecious and oviparous species and C. leana and C. papyracea were monoecious and viviparous species.

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A Cross-Validation of SeismicVulnerability Assessment Model: Application to Earthquake of 9.12 Gyeongju and 2017 Pohang (지진 취약성 평가 모델 교차검증: 경주(2016)와 포항(2017) 지진을 대상으로)

  • Han, Jihye;Kim, Jinsoo
    • Korean Journal of Remote Sensing
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    • v.37 no.3
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    • pp.649-655
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    • 2021
  • This study purposes to cross-validate its performance by applying the optimal seismic vulnerability assessment model based on previous studies conducted in Gyeongju to other regions. The test area was Pohang City, the occurrence site for the 2017 Pohang Earthquake, and the dataset was built the same influencing factors and earthquake-damaged buildings as in the previous studies. The validation dataset was built via random sampling, and the prediction accuracy was derived by applying it to a model based on a random forest (RF) of Gyeongju. The accuracy of the model success and prediction in Gyeongju was 100% and 94.9%, respectively, and as a result of confirming the prediction accuracy by applying the Pohang validation dataset, it appeared as 70.4%.

Pohang City Fire Vulnerable Area Prediction and Fire Damage Rating Measurement by Administrative District (포항시 화재 취약지역 예측 및 이에 따른 행정구역별 화재 피해 등급 측정)

  • Lim, Jung-Hoon;Kim, Heon-Joo
    • The Journal of the Korea Contents Association
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    • v.21 no.4
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    • pp.166-176
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    • 2021
  • Due to urbanization and industrialization, the importance of large-scale fire prevention, management and measures is increasing day by day. However, the fire site arrival rate in Golden Time, which is a factor that can minimize large-scale fire damage, of Pohang, a large city with a population of over 500,000, is relatively low. So additional fire fighting power deployment and infrastructure investment are required. However, as budget and manpower are limited, it is necessary to selectively deploy fire fighting power and invest in infrastructure. Therefore, this study attempted to present a fire damage rating that can compare the level of fire damage, which is an index that can help selectively provide fire fighting services in Pohang and make related decisions. For the index, the OD cost matrix was used to predict fire vulnerable areas with a high probability of increasing the fire scale in the event of a fire. Also fire damage was measured by predicting the level of fire damage in the event of a fire according to population, building density, and access of fire trucks. It is expected that the fire damage rating will be able to help in various decisions related to fire fighting service deployment and services not only in Pohang city, but also in other regions.

Engineering Characteristics and D istribution of Marine Clay in Pohang City (포항 해성점토의 분포와 공학적 특성)

  • 정철호
    • Geotechnical Engineering
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    • v.14 no.5
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    • pp.77-88
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    • 1998
  • This study discusses the engineering characteristics and distribution of marine clay in Pohang by providing evidence that Pohang area has been upheaving in connection with the changes of sea level and geographical development in the Babt Coast. It is estimated that the sea level of the East Coast about 10,000 years ago had been 25 meters below than that of the present. The corroborative fact is that the marine clay deposited below the sea level due to the changes of the crust in Pohang is usually found above the sea level. Judging from their OCR values of leas than 0.77 and Bu/po'ratio of less than 0.14 at the depth of 7.8 meters below the ground level, marine clays of Dohu 1-dong and Jangsung-dong in Pohang City are presumed to be in a state of underconsolidation. However, more sophisticated measures and analysis are needed to prove it.

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