FIGURE T5. Time-longitude section of mean (minus 1000 mb, top) and anomalous (bottom) sea level pressure for 5oN-5oS. Pentad data are low-pass filtered to remove high-frequency variability. Contour intervals are 1 mb and 0.5 mb, respectively. Dashed contours (bottom) indicate negative anomalies. Anomalies are departures from the 1979-1988 base period pentad means.


FIGURE T6. Time-longitude section of mean (top) and anomalous (bottom) 850-mb zonal wind for 5oN-5oS. Pentad data are low-pass filtered to remove high frequency-variability. Contour intervals are 2 ms-1 and 1 ms-1, respectively. Dashed contours indicate easterlies or easterly anomalies. Anomalies are departures from the 1979-1988 base period pentad means.


FIGURE T7. Time-longitude section of mean (top) and anomalous (bottom) outgoing longwave radiation for 5oN- 5oS. Pentad data are low-pass filtered to remove high-frequency variability. Contour interval is 10 Wm-2. Dashed contours indicate negative OLR anomalies. Anomalies are departures from the 1979-1988 base period pentad means.


FIGURE T8. Time-longitude section of mean (top) and anomalous (bottom) sea surface temperature for 5oN-5oS. Contour interval is 1oC (top) and 0.5oC (bottom), respectively. Negative anomalies are indicated by dashed contours. Anomalies are departures from the adjusted OI climatology (Reynolds and Smith, submitted to J. Climate).


FIGURE T9. Time-longitude section (5oN-5oS) of anomalous sea level pressure (mb). Contour interval is 1 mb. Negative (positive) anomalies are indicated by lighter (darker) shading. Anomalies are departures from the 1979-1988 base period pentad means. The data are smoothed temporally by using a 3-point running average. Anomalies in the elevated terrain regions of Africa (15-40oE) and South America (near 70oW) should be ignored.


FIGURE T10. Time-longitude section (5oN-5oS) of anomalous outgoing longwave radiation (Wm-2). Contour interval is 15 Wm-2. Negative (positive) anomalies are indicated by darker (lighter) shading. Anomalies are departures from the 1979-1988 base period pentad means. The data are smoothed temporally by using a 3-point running average.


FIGURE T11. Time-longitude section (5oN-5oS) of anomalous 250-mb velocity potential (106 m2s-1). Contour interval is 2 x 106 m2s-1. Negative (positive) anomalies are indicated by darker (lighter) shading. Anomalies are departures from the 1987-1992 base period pentad means. The data are smoothed temporally by using a 3- point running average. The 73-pentad mean at each longitude has been removed.


FIGURE T12. Time-longitude section (5oN-5oS) of anomalous 850-mb zonal wind (ms-1). Contour interval is 2 ms-1. Negative (positive) anomalies are indicated by lighter (darker) shading. Anomalies are departures from the 1979-1988 base period pentad means. The data are smoothed temporally by using a 3-point running average.


FIGURE T13. Mean (top) and anomalous (bottom) depth of the 20oC isotherm along the equator in the Pacific Ocean. Data are derived from an analysis system which assimilates oceanic observations into an oceanic GCM (Leetmaa and Ji 1989, Dyn. Atmos. Oceans, 13, 465-490). The contour interval is 10 m. Dashed contours in bottom panel indicate negative anomalies. Anomalies are departures from the 1983-1992 base period means.

FIGURE T14. Mean (top) and anomalous (bottom) heat storage (integrated temperature) along the equator in the upper 408 m of the Pacific Ocean. Data are derived from an analysis system which assimilates oceanic observations into an oceanic GCM (Leetmaa and Ji 1989, Dyn. Atmos. Oceans, 13, 465-490). The contour interval is 1 x 102 moC (top) and 2 x 102 moC (bottom). Anomalies are departures from the 1983-1992 base period means.