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Spatial and temporal changes of precipitable water vapour in Thailand

journal contribution
posted on 2023-05-21, 10:59 authored by Buntoung, S, Janjai, S, Manuel NunezManuel Nunez, Pattarapanitchai, S, Nimnuan, P, Pariyothon, J
The study examines spatial and temporal changes in monthly precipitable water vapour (PWV) over Thailand using 37 years of monthly ERA-Interim re-analysis data (1981-2017). PWV from ERA-Interim data was compared with that derived from radiosonde observations at four stations and it was shown to have an average root-mean-square error and mean bias error of 0.264 cm and -0.137 cm, respectively. Then, PWV from ERA data was used to estimate spatial patterns of monthly average PWV for the winter (Nov, Dec, Jan), summer (Feb, Mar, Apr, May) and rainy (Jun, Jul, Aug, Sep, Oct) seasons as well as the yearly averages. Statistically significant increases in PWV are found in the rainy season which has been related to the West Pacific index (WP). A second statistically significant increasing trend is found over the southern half of Thailand during the winter season which could be influenced by changes related to the Siberian High pressure.

History

Publication title

Physical Geography

Volume

41

Issue

5

Pagination

467-488

ISSN

0272-3646

Department/School

School of Geography, Planning and Spatial Sciences

Publisher

Taylor & Francis

Place of publication

United Kingdom

Rights statement

© 2019 Informa UK Limited, trading as Taylor & Francis Group

Repository Status

  • Restricted

Socio-economic Objectives

Climate change mitigation strategies; Expanding knowledge in the earth sciences

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