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Assessment of Royal Rainmaking Performance with Ground-based Rainfall in Phetchaburi River Basin |
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| รหัสดีโอไอ | |
| Creator | Voraton Vongsamut |
| Title | Assessment of Royal Rainmaking Performance with Ground-based Rainfall in Phetchaburi River Basin |
| Contributor | Komsan Chaiyo, Wisuwat Taesombat |
| Publisher | Faculty of Engineering Mahasasakham University |
| Publication Year | 2565 |
| Journal Title | Engineering Access |
| Journal Vol. | 8 |
| Journal No. | 1 |
| Page no. | 61-66 |
| Keyword | Phetchaburi River Basin, Royal rainmaking operation, Radar rain, Spatial areal rainfall, Terrestrial rain |
| URL Website | https://ph02.tci-thaijo.org/index.php/mijet/index |
| Website title | THAIJO Engineering Access |
| ISSN | 2730-4175 |
| Abstract | Phetchaburi River Basin is a watershed that connects to the coast. There is a rainy season from May to November. The average rainfall is about 1,000 mm per year, about 200 mm less than the average rainfall in Thailand. Due to the low rain in the area, there is a problem of water shortage for agriculture and consumption. Therefore, the Department of Royal Rainmaking and Agricultural Aviation has carried out Royal Rainmaking operations to increase the amount of rainfall over the basin especially the amount of water flow through the Kaeng Krachan Reservoir. This study assessed the effectiveness of royal rain and terrestrial rain in the Phetchaburi Basin by collecting hourly rainfall data during 09.00-21.00 (12 hrs.) for 14 stations and 4 additional stations studied for installation and radar rain data in the form of a grid obtained from the operation in years 2018-2020. It found that there were 108 days of Royal precipitation during these three years by analyzing the spatial areal using the Invert Distance Weighted technique. The spatial areal rainfall of the two datasets had a correlation coefficient of 0.21, which was a relatively low correlation. Once simulating radar rainfall data, come to the 4 additional stations to find the average daily spatial areal rainfall. The data were then compared with the reference data again. It found that the correlation coefficient increased with correlation coefficient of 0.54. However, it has to wait for the actual measurement results during the Royal Rainmaking Operations Year 2021 from this additional measuring device and use the results obtained to evaluate the achievement of the Royal Rainmaking Operations in the year 2021. |
