The correlation between sea surface temperature anomalies and typhoons over the Western North Pacific Ocean | |
| Author | Nutnaree Thongrueang |
| Call Number | AIT Thesis no.RS-17-30 |
| Subject(s) | Correlation--Pacific Ocean Earth temperature--Pacific Ocean |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Remote Sensing and Geographic Information Systems |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. RS-17-30 |
| Abstract | Every year tropical cyclones cause hundreds of deaths and injuries in the western part of the North Pacific . Sea Surface Temperature ( SST ) is an important environmental variable used to study weather, climate and ocean processes . Furthermore, wind shear refers to any change in wind speed or direction along a straight line . In the case of tropical cyclones, wind shear is important primarily in the vertical direction . Thus, the main purpose of this study is to investigate Sea Surface Temperature anomalies ( SSTA ) before and after typhoons and understand its relationships with changes in ocean temperatures and to characterize and analyze the correlation between Sea Surface Temperature anomalies and Typhoon relevant parameters including wind speed and wind direction . This study uses Joint Typhoon Warning center ( JTWC ) for tracking site typhoon, NOAA OI SST V2 High Resolution SSTA Daily dataset and the Cross - Calibrated Multi - Platform ( CCMP ) gridded surface vector winds dataset . The study area of this thesis was mainly focused on the western part of the North Pacific Ocean which is located over the area 122°E - 180°E From the study of SSTA in three typhoon cases, the trends SSTA during the typhoon passage, the day before typhoon and the day after typhoon are similarly for each period . The SSTA values of the day before typhon is highest than other periods . Furthermore, the lowest SSTA is at the day after typhoon . The correlation between SSTA and wind speed during the passage of typhoons . This study shows a moderate negative correlation value for Typhoon Jangmi and typhoon Soudelor between SSTA and wind speed, the value is about - 0 . 54 and - 0 . 49 respectively . In contrast, typhoon Megi has shown positive weak correlation, the value is about 0 . 21 . Also, the results indicated that the relationship between SSTA and wind direction are complicated . The correlation between SSTA and wind direction have negative correlation for three typhoons . The present study helps to understand the SSTA relationships during typhoon, the day before typhoon and the day after typhoon . Moreover, this study also helps for understand characteristics of the correlation of wind speed and wind direction during . |
| Year | 2017 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. RS-17-30 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Remote Sensing (RS) |
| Chairperson(s) | Tripathi, Nitin Kumar |
| Examination Committee(s) | Nakamura, Tai;Pal, Indrajit;Wu, Jee - Cheng |
| Scholarship Donor(s) | Greater Mekong Subregion (GMS) Scholarship |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2017 |