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2004•Journal of Tropical MeteorologyRequires access

ANALYSIS OF INTERDECADAL AND INTERANNUAL CHARACTERISTICS OF THE TROPICAL WESTERN PACIFIC WARM POOL HEAT STATUS

Dongxiao Wang

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Abstract

Temporal and spatial characteristics of sea surface temperature departure(SST' ) and heat storage departure(HS' ) are analyzed on the interdecal and interannual scale in January and July by using harmonious wave analysis and EOF analysis methods. Results show that (1) there are two important modes of SST and HS' : the structure of HS' for January is the simplest on the interdecadal and interannual scale, and the structure of SST for January (July) is the most complicated on the interannual(interdecadal) scale; (2) the breaking time of HS' interannual variation is later than that of SST in the late 1970s and early 1980s, with SST (HS' ) increasing(descreasing); (3) interannual anomaly of SST is not related to ENSO noticeably, but HS' has a close relationship with ENSO.

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What this paper is about

Temporal and spatial characteristics of sea surface temperature departure(SST' ) and heat storage departure(HS' ) are analyzed on the interdecal and interannual scale in January and July by using harmonious wave analysis and EOF analysis methods. Results show that (1) there are two important modes of SST and HS' : the structure of HS' for January is the simplest on the interdecadal and interannual scale, and the structure of SST for January (July) is the most complicated on the interannual(interdecadal) scale; (2) the breaking time of HS' interannual variation is later than that of SST in the late 1970s and early 1980s, with SST (HS' ) increasing(descreasing); (3) interannual anomaly of SST is not related to ENSO noticeably, but HS' has a close relationship with ENSO.

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Available abstract

Temporal and spatial characteristics of sea surface temperature departure(SST' ) and heat storage departure(HS' ) are analyzed on the interdecal and interannual scale in January and July by using harmonious wave analysis and EOF analysis methods. Results show that (1) there are two important modes of SST and HS' : the structure of HS' for January is the simplest on the interdecadal and interannual scale, and the structure of SST for January (July) is the most complicated on the interannual(interdecadal) scale; (2) the breaking time of HS' interannual variation is later than that of SST in the late 1970s and early 1980s, with SST (HS' ) increasing(descreasing); (3) interannual anomaly of SST is not related to ENSO noticeably, but HS' has a close relationship with ENSO.

Key concepts: Climatology, Sea surface temperature, Anomaly (physics), El Niño Southern Oscillation, Environmental science, Scale (ratio), Geology, Geography

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