• Corpus ID: 53321956

SST – convection relation over tropical oceans

  title={SST – convection relation over tropical oceans},
  author={T. P. Sabina and C. A. Babub and P. V. Josephb},
According to current knowledge, convection over the tropical oceans increases with sea surface temperature (SST) from 26 to 29 °C, and at SSTs above 29 °C, it sharply decreases. Our research shows that it is only over the summer warm pool areas of Indian and west Pacific Oceans (monsoon areas) where the zone of maximum SST is away from the equator that this kind of SST-convection relationship exists. In these areas (1) convection is related to the SST gradient that generates low-level moisture… 
Sensitivity of precipitation to sea surface temperature over the tropical summer monsoon region—and its quantification
  • M. Roxy
  • Environmental Science
    Climate Dynamics
  • 2013
Over the tropical oceans, higher sea surface temperatures (SST, above 26 °C) in summer are generally accompanied by increased precipitation. However, it has been argued for the last three decades
Attribution of the seasonality of atmospheric heating changes over the western tropical Pacific with a focus on the spring season
Atmospheric diabatic heating, a major driving force of atmospheric circulation over the tropics, is strongly confined to the tropical western North Pacific (TWNP) region, with the global warmest sea
Delayed Impact of Indian Ocean Warming on the East Asian Surface Temperature Variation in Boreal Summer
A significant negative relationship is found between the summer mean north Indian Ocean sea surface temperature (SST) and East Asian surface temperature anomalies. However, the relationship is
Ocean-atmosphere interactions in the tropical Atlantic seasonal cycle and multidecadal variability of ENSO
We investigate the role of sea surface temperature (SST) and land surface temperature (LST) in driving the seasonal cycle of the atmosphere (surface winds and precipitation) in the tropical Atlantic.
Distinct winter patterns of tropical Pacific convection anomaly and the associated extratropical wave trains in the Northern Hemisphere
In this paper, distinct patterns of boreal winter convection anomalies over the tropical Pacific and associated wave trains in the extratropics are addressed. The first leading mode (EOF1) of
Origin of cold bias over the Arabian Sea in Climate Models
It is shown that an equatorward bias in subtropical Jetstream during boreal spring season anomalously cools down the northern Arabian Sea and adjoining land regions in CMIP5 models.
Indo-Pacific Warm Pool Area Expansion, Modoki Activity, and Tropical Cold-Point Tropopause Temperature Variations
The present study reveals that the continuous expansion of the area of the Indo-Pacific warm pool (IPWP) since the 1980s represents an increase in the total heat energy of the IPWP available to heat the tropospheric air, which is likely to expand as a result.
Differences in the association of sea surface temperature—precipitating systems over the Bay of Bengal and the Arabian Sea during southwest monsoon season
The intriguing, but complex, association among sea surface temperature (SST) and different types of precipitating systems (deep and shallow) over the Bay of Bengal and the Arabian Sea has been
OLR perspective on the Indian Ocean Dipole with application to East African precipitation
Interannual variability of precipitation over eastern Africa (Somalia, Ethiopia, and Kenya) is impacted by the Indian Ocean dipole (IOD), which has its maximum amplitude during autumn. During
Impact of Tropical Pacific Precipitation Anomaly on the East Asian Upper-Tropospheric Westerly Jet during the Boreal Winter
AbstractThe leading mode of boreal winter precipitation variability over the tropical Pacific for the period 1980–2010 shows a west–east dipole pattern with one center over the western North Pacific


Sea Surface Temperature, Surface Wind Divergence, and Convection over Tropical Oceans
Analysis of regional associations between ocean temperature, surface wind divergence, and convection produced two important results: changes in atmospheric stability caused by remotely forced changes in subsidence aloft may play a major role in regulating convection over warm tropical oceans.
Ocean–atmosphere coupling over monsoon regions
In monsoon regions, the seasonal migration of the intertropical convergence zone (ITCZ) is manifested as a seasonal reversal of winds. Most of the summer monsoon rainfall over India occurs owing to
The Role of Large-Scale Atmospheric Circulation in the Relationship between Tropical Convection and Sea Surface Temperature
Abstract In this paper, the authors study the influence of the large-scale atmospheric circulation on the relationship between sea surface temperature (SST) and tropical convection inferred from
On the Relationship between SST Gradients, Boundary Layer Winds, and Convergence over the Tropical Oceans
A linear mixed layer model that skillfully reproduces observed surface winds and convergence over the tropicaloceans is used to examine the relative influenceof boundarylayer and free-tropospheric
Large-Scale Variability of Atmospheric Deep Convection in Relation to Sea Surface Temperature in the Tropics
Abstract Empirical relationships between tropical sea surface temperature (SST) and atmospheric deep convection are examined. Large-scale features of tropical deep convection are estimated from two
On the role of sea surface temperature gradients in forcing low-level winds and convergence in the tropics
Abstract We examine the importance of pressure gradients due to surface temperature gradients to low-level (p ≥ 700 mb) flow and convergence in the tropics over time scales ≳ 1 month. The latter
Intraseasonal Variability of the Low-Level Jet Stream of the Asian Summer Monsoon
Abstract The strong cross-equatorial low level jet stream (LLJ) with its core around 850 hPa of the Asian summer monsoon (June–September) is found to have large intraseasonal variability. During the
An ocean–atmosphere interaction mechanism for the active break cycle of the Asian summer monsoon
A typical active–break cycle of the Asian summer monsoon is taken as beginning with maximum SST (pentad 0) over the north Bay of Bengal when the oceans to its west and east from longitude 40°–160°E,
Link between convection and meridional gradient of sea surface temperature in the Bay of Bengal
We use daily satellite estimates of sea surface temperature (SST) and rainfall during 1998–2005 to show that onset of convection over the central Bay of Bengal (88–92°E, 14–18°N) during the core
A possible response of the atmospheric Hadley circulation to equatorial anomalies of ocean temperature
Weakness and temporary elimination of the equatorial easterly winds over the eastern and central Pacific in late 1957 and early 1958 brought about a brief cessation of equatorial upwelling which in