List of Figures

Figure 1. Maps showing USGS land-cover data for pre-1900 natural land cover and 1993 land use

Figure 2. Map showing grid configurations for the RAMS domain used in this study

Figure 3. Maps of accumulated precipitation (mm) from the CPC analysis of cooperative observation network rain gauge data (analysis on 0.258 grid) for Jul-Aug 1973, Jul-Aug 1989, and Jul-Aug 1994

Figure 4. Maps of accumulated convective rainfall (mm) from the model simulations of Jul-Aug 1973 with pre-1900 land cover, 1993 land use, and the difference field for the two (1993 minus pre-1900 case)

Figure 5. Maps of accumulated convective rainfall (mm) from the model simulations of Jul-Aug 1989 with pre-1900 land cover, 1993 land use, and the difference field for the two (1993 minus pre-1900 case)

Figure 6. Maps of accumulated convective rainfall (mm) from the model simulations of Jul-Aug 1994 with pre-1900 land cover, 1993 land use, and the difference field for the two (1993 minus pre-1900 case)

Figure 7. Maps showing two-month average of the surface sensible heat flux (W m^-2) from the model simulations of Jul-Aug 1973 with pre-1900 land cover, 1993 land use, and the difference field for the two (1993 minus pre-1900 case)

Figure 8. Maps showing two-month average of the surface latent heat flux (W m^-2) from the model simulations of Jul-Aug 1973 with pre-1900 land cover, 1993 land use, and the difference field for the two (1993 minus pre-1900 case)

Figure 9. Maps showing two-month average of the surface sensible heat flux (W m^-2) from the model simulations of Jul-Aug 1989 with pre-1900 land cover, 1993 land use, and the difference field for the two (1993 minus pre-1900 case)

Figure 10. Maps showing two-month average of the surface latent heat flux (W m^-2) from the model simulations of Jul-Aug 1989 with pre-1900 land cover, 1993 land use, and the difference field for the two (1993 minus pre-1900 case)

Figure 11. Maps showing two-month average of the surface sensible heat flux (W m^-2) from the model simulations of Jul-Aug 1994 with pre-1900 land cover, 1993 land use, and the difference field for the two (1993 minus pre-1900 case)

Figure 12. Maps showing two-month average of the surface latent heat flux (W m^-2) from the model simulations of Jul-Aug 1994 with pre-1900 land cover, 1993 land use, and the difference field for the two (1993 minus pre-1900 case)

Figure 13. Maps showing two-month average of the daily maximum shelter-level temperature from the model simulations of Jul-Aug 1989 with pre-1900 land cover, 1993 land use, and the difference field for the two (1993 minus pre-1900 case)

Figure 14. Maps showing two-month average of the daily minimum shelter-level temperature from the model simulations of Jul-Aug 1989 with pre-1900 land cover, 1993 land use, and the difference field for the two (1993 minus pre-1900 case)

Figure 15. Graphs showing two-month average of the diurnal cycle of shelter-level temperature from the model simulations for Jul-Aug 1989 averaged over all land grid points in the domain, and for a grid point in the Kissimmee River valley

Figure 16. Maps showing two-month average of the 1600 UTC 10-m horizontal wind (vectors) and derived divergence field (color shaded; 10⁵ s^-1) from the simulations of Jul-Aug 1989 with pre-1900 land cover and 1993 land use

Figure 17. Map showing the difference (1993 minus pre-1900 case) of the fields shown in Fig. 16

Figure 18. Maps showing two-month average of the 1600 UTC u-w wind component (vectors are in m s^-1, but w component is multiplied by 100 for visual emphasis) and vertical velocity (cm s^-1; color shaded) from the simulations for Jul-Aug 1989 with pre-1900s land cover and 1993 land use

Figure 19. Map showing the difference (1993 minus pre-1900 case) of the fields shown in Fig. 18

Figure 20. Maps showing the difference field of accumulated precipitation (mm; 1993 minus pre-1900) from the simulations for Jul-Aug 1989 incorporating the Chen-Cotton radiation scheme, the Kuo convection scheme, default physics at 40-km grid spacing, and default physics, with weekly observed SST and VIC model initial soil moisture

Figure 21. Histogram of grid-average accumulated rainfall (mm) of all possible combinations of SST and soil moisture sensitivity experiments with the Jul-Aug 1989 simulations for both land-cover scenarios

Figure 22. Maps showing Jul-Aug average SST (K) for the weekly observed NCEP data from 1989 and the monthly climatological dataset

Figure 23. Maps showing initial soil moisture (m³ m^-3) as derived from the VIC model valid for 1 Jul 1989 for the pre-1900 land cover and 1993 land use

Figure 24. Map showing locations of observation stations used to compile regional-average long-term time series

Figure 25. Graph showing regional-average time series of accumulated convective rainfall (cm) from 1924 to 2000, with corresponding trend based on linear regression of all Jul-Aug regional average amounts

Figure 26. Graphs showing regional-mean time series of maximum and minimum shelter-level temperature (^oC)

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