Atmospheric Moisture Sources, Paths, and the Quantitative Importance to the Eastern Asian Monsoon Region

L. Li, A.J. Dolman, Z. Xu

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

A Lagrangian model [Flexible Particle dispersion model (FLEXPART)] was used to calculate the back trajectories of air parcels residing over the East Asian monsoon region (EAM) for a 4-yr period (2009-12). To detect the moisture source-sink relationships to the EAM, the moisture budgets [evaporation minus precipitation (E - P)] were evaluated by diagnosing the changes of specific humidity along the trajectories. A circulation constraint method was proposed to define the moisture sources of the EAM, to quantify their importance, to depict the moisture transport processes, and to reveal the fate of the moisture from different sources. The results indicated that in winter the largest airmass inflow is through the dry westerlies, but they do not form net precipitation. The much smaller contribution of the tropical oceans is more relevant to winter precipitation. In summer, the main contribution was through the southwest monsoon, with a mean specific humidity of 9.8 g kg
Original languageEnglish
Article number2
Pages (from-to)637-649
JournalJournal of Hydrometeorology
Issue number17
DOIs
Publication statusPublished - 2016

Fingerprint Dive into the research topics of 'Atmospheric Moisture Sources, Paths, and the Quantitative Importance to the Eastern Asian Monsoon Region'. Together they form a unique fingerprint.

  • Cite this