2022 暑期研習計畫成果

發表日期
報告名稱
作者
期刊
2022.08.22
Using SPOT Images to Identify the Shoreline Changes over the Coastal Area in East Taiwan
陳品妤(英國倫敦大學學院地理學系), 陳奕穎
參與「不同社會經濟發展情境下台灣土地利用變化之過程與分析」研習計畫

報告摘要

The spatial and temporal changes in shorelines were among the most significant observations in coastal area monitoring (Bamdadinejad, et al., 2021). One environmental factor that may induce rapid changes in shorelines was the sea-level rise caused by climate change (Adebisi, et al., 2021). This research focused on the impact of rising sea levels on the Eastern Taiwanese shoreline.

Multi-spectrum satellite images (SPOT) were analyzed with the Normalized Difference Water Index (NDWI), the Normalized Difference Vegetation Index (NDVI), the Green-Red Vegetation Index (GRVI), and another self-defined index to identify the water and land (Abedelhady, et al., 2022). Principal component analysis (PCA) was used afterwards to improve image pixel classification. Finally, by way of a simple statistical approach, the study concludes that there was minimal change in the eastern coastal area of Taiwan and the status of the shoreline remained relatively stable between the years 2016 and 2021.

關鍵字

Satellite image, shoreline, SPOT, classification, extraction, sea level rise

相關連結

2022.08.22
台灣夏季溫度與太平洋經向模式之關聯
蔡睫葶(國立臺灣大學氣候變遷與永續發展學程), 王懌琪
參與「運用數據分析了解氣候變遷中的降雨及溫度變化」研習計畫

報告摘要

This study investigates the association between the Taiwan summer temperature (TST) and the Pacific meridional Mode (PMM), an anomalous north-south sea surface temperature gradient over the northeastern subtropical Pacific, during 1960-2018. It’s found that when the PMM was in the positive state, the summer temperature in Taiwan significantly increased. And the reverse happened during its negative phase. When the ENSO signal was removed, the correlation between the two was higher. During the PMM positive phase, Taiwan and the adjacent area became hotter and drier.

關鍵字

the PMM、EOF analyze、summer temperature

相關連結

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