Effects of freshwater runoff on a tropical pacific climate in the HadGEM2

Suryun Ham, Song You Hong, Yign Noh, Soon Il An, Young Hwa Byun, Hyun Suk Kang, Johan Lee, Won Tae Kwon

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

This paper investigates the effects of river discharge on simulated climatology from 1979 to 1988 using the Hadley Centre Global Environmental Model version 2. Two experiments are performed with and without the inclusion of Total Runoff Integrating Pathways. The results show that the inclusion of flow routing can lead to the decrease of salinity over the coastal region due to freshwater. This reduction results in a shallower mixed layer depth, which in turn leads to the weakening of trade winds and a decrease in vertical mixing in the ocean. The enhanced sensible and latent heat fluxes over warmed SST improve the simulated precipitation and thermodynamic circulation. As a result, the experiment with flow routing is capable of improving the large-scale climate feature with an increase in precipitation over the eastern tropical equatorial Pacific region.

Original languageEnglish
Pages (from-to)457-463
Number of pages7
JournalAsia-Pacific Journal of Atmospheric Sciences
Volume48
Issue number4
DOIs
Publication statusPublished - 2012 Nov 1

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routing
runoff
trade wind
climate
latent heat flux
vertical mixing
sensible heat flux
river discharge
climatology
mixed layer
sea surface temperature
thermodynamics
experiment
salinity
ocean
effect

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

Cite this

Ham, Suryun ; Hong, Song You ; Noh, Yign ; An, Soon Il ; Byun, Young Hwa ; Kang, Hyun Suk ; Lee, Johan ; Kwon, Won Tae. / Effects of freshwater runoff on a tropical pacific climate in the HadGEM2. In: Asia-Pacific Journal of Atmospheric Sciences. 2012 ; Vol. 48, No. 4. pp. 457-463.
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Effects of freshwater runoff on a tropical pacific climate in the HadGEM2. / Ham, Suryun; Hong, Song You; Noh, Yign; An, Soon Il; Byun, Young Hwa; Kang, Hyun Suk; Lee, Johan; Kwon, Won Tae.

In: Asia-Pacific Journal of Atmospheric Sciences, Vol. 48, No. 4, 01.11.2012, p. 457-463.

Research output: Contribution to journalArticle

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