Summary
The effects of atmospheric boundary-layer stability on urban heat island-induced circulation are numerically and theoretically investigated using a nonlinear numerical model (ARPS) and a two-layer linear analytical model. Numerical model simulations show that as the boundary layer becomes less stable, a downwind updraft cell induced by the urban heat island strengthens. It is also shown that as the boundary layer becomes less stable, both the height of the maximum updraft velocity and the vertical extent of the downwind updraft cell increase. Hence, in the daytime with a nearly neutral or less stable boundary layer the urban heat island-induced circulation can become strong, even though the urban heat island is weak. It is suggested that these findings can be a mechanism for urban-induced thunderstorms observed in the late afternoon or evening with a nearly neutral or less stable boundary layer. The boundary-layer stability affects the spatial distribution of scalar concentration through its influencing urban heat island-induced circulation. Analytical results from a two-layer model with different boundary-layer stabilities in the lower and upper layers are in general qualitatively consistent with the numerical simulation results, although the low-level maximum vertical velocity does not change monotonically with lower-layer stability.
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References
JJ Baik (1992) ArticleTitleResponse of a stably stratified atmosphere to low-level heating – an application to the heat island problem J Appl Meteor 31 291–303 Occurrence Handle10.1175/1520-0450(1992)031<0291:ROASSA>2.0.CO;2
JJ Baik YH Kim HY Chun (2001) ArticleTitleDry and moist convection forced by an urban heat island J Appl Meteor 40 1462–1475 Occurrence Handle10.1175/1520-0450(2001)040<1462:DAMCFB>2.0.CO;2
SA Changnon (1968) ArticleTitleThe La Porte anomaly: fact or fiction? Bull Amer Meteor Soc 49 4–11
SA Changnon RT Shealy RW Scott (1991) ArticleTitlePrecipitation changes in fall, winter, and spring caused by St. Louis J Appl Meteor 30 126–134 Occurrence Handle10.1175/1520-0450(1991)030<0126:PCIFWA>2.0.CO;2
HY Chun (1995) ArticleTitleEnhanced response of a stably stratified two-layer atmosphere to low-level heating J Meteor Soc Japan 73 685–696
JE Diem DP Brown (2003) ArticleTitleAnthropogenic impacts on summer precipitation in central Arizona, U.S.A. Prof Geogr 55 343–355
JE Diem TL Mote (2005) ArticleTitleInterepochal changes in summer precipitation in the Southeastern United States: evidence of possible urban effects near Atlanta, Georgia J Appl Meteor 44 717–730 Occurrence Handle10.1175/JAM2221.1
FA Huff SA Changnon (1972) ArticleTitleClimatological assessment of urban effects on precipitation at St. Louis J Appl Meteor 11 823–842 Occurrence Handle10.1175/1520-0450(1972)011<0823:CAOUEO>2.0.CO;2
FA Huff SA Changnon (1973) ArticleTitlePrecipitation modification by major urban areas Bull Amer Meteor Soc 54 1220–1232 Occurrence Handle10.1175/1520-0477(1973)054<1220:PMBMUA>2.0.CO;2
YL Lin RB Smith (1986) ArticleTitleTransient dynamics of airflow near a local heat source J Atmos Sci 43 40–49 Occurrence Handle10.1175/1520-0469(1986)043<0040:TDOANA>2.0.CO;2
Oke TR (1987) Boundary Layer Climates, 2nd edn. Routledge, 435 pp
DB Olfe RL Lee (1971) ArticleTitleLinearized calculations of urban heat island convection effects J Atmos Sci 28 1374–1388 Occurrence Handle10.1175/1520-0469(1971)028<1374:LCOUHI>2.0.CO;2
D Rosenfeld (2000) ArticleTitleSuppression of rain and snow by urban and industrial air pollution Science 287 1793–1796 Occurrence Handle10.1126/science.287.5459.1793
CM Rozoff WR Cotton JO Adegoke (2003) ArticleTitleSimulation of St. Louis, Missouri, land use impacts on thunderstorms J Appl Meteor 42 716–738 Occurrence Handle10.1175/1520-0450(2003)042<0716:SOSLML>2.0.CO;2
JM Shepherd (2005) ArticleTitleA review of current investigations of urban-induced rainfall and recommendations for the future Earth Interactions 9 1–27 Occurrence Handle10.1175/EI156.1
JM Shepherd H Pierce AJ Negri (2002) ArticleTitleRainfall modification by major urban areas: observations from spaceborne rain radar on the TRMM satellite J Appl Meteor 41 689–701 Occurrence Handle10.1175/1520-0450(2002)041<0689:RMBMUA>2.0.CO;2
RB Smith YL Lin (1982) ArticleTitleThe addition of heat to a stratified airstream with application to the dynamics of orographic rain Quart J Roy Meteor Soc 108 353–378 Occurrence Handle10.1002/qj.49710845605
J Thielen W Wobrock A Gadian PG Mestayer JD Creutin (2000) ArticleTitleThe possible influence of urban surfaces on rainfall development: a sensitivity study in 2D in the meso-γ-scale Atmos Res 54 15–39 Occurrence Handle10.1016/S0169-8095(00)00041-7
Xue M, Droegemeier KK, Wong V, Shapiro A, Brewster K (1995) ARPS version 4.0 User’s Guide. CAPS, University of Oklahoma, 380 pp
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Baik, JJ., Kim, YH., Kim, JJ. et al. Effects of boundary-layer stability on urban heat island-induced circulation. Theor. Appl. Climatol. 89, 73–81 (2007). https://doi.org/10.1007/s00704-006-0254-4
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DOI: https://doi.org/10.1007/s00704-006-0254-4