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Climate Trend Analysis Using Mann-Kendall and Sen’s Slope Estimator Tests in Central Luzon, Philippines |
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| รหัสดีโอไอ | |
| Creator | Shiella Mae H. Fajardo |
| Title | Climate Trend Analysis Using Mann-Kendall and Sen’s Slope Estimator Tests in Central Luzon, Philippines |
| Contributor | Jocell D. Calma |
| Publisher | Phetchaburi Rajabhat University |
| Publication Year | 2568 |
| Journal Title | Interdisciplinary Research Review (IRR) |
| Journal Vol. | 20 |
| Journal No. | 1 |
| Page no. | 21–31 |
| Keyword | Climate change, Trend analysis, Mann-Kendall, Sen’s Slope Estimator |
| URL Website | https://ph02.tci-thaijo.org/index.php/jtir |
| Website title | Interdisciplinary Research Review (IRR) |
| ISSN | 2697-536X |
| Abstract | Climate change is one of the most pressing global challenges, affecting weather patterns, ecosystems, and human livelihoods. The climatological factors of rainfall, temperature, relative humidity, and wind speed were analyzed to determine the climate trend over the last 41 years in Central Luzon, Philippines. The non-parametric Mann-Kendall (MK) and Sen's Slope Estimator (SSE) tests were applied to annual and monthly datasets from 1980 to 2021 across seven synoptic weather stations in the region. Results indicate a significant upward trend in annual temperature at all stations, with the most pronounced increases occurring in May, November, and December. This suggests that Central Luzon will experience continued warming in the coming years. Relative humidity exhibited a declining trend annually across the region and in all months in Casiguran. Wind speed showed a downward trend in Baler Radar, Cabanatuan, and Iba stations, while Casiguran experienced an upward trend. Although annual rainfall did not display a significant overall trend, an increasing pattern was observed in December in Casiguran, while May rainfall declined in Cubi Point. These findings indicate that climate change is already affecting the region, potentially leading to extreme weather events such as droughts and heatwaves that could severely impact the agricultural sector. Further studies are necessary to investigate the underlying causes of rising temperatures and declining humidity, as well as their broader implications for local and regional climate systems. |
