The table below list heights (in m) and temperatures (in °C) at18 UTC on February 16, 2009 for several pressure levels at SanDiego, CA. The data were derived from a computer simulation of theatmosphere. Although thunderstorms are relatively infrequent alongthe southern California Coast, there is a tendency for morethunderstorms during winter. This image is the 18 UTC radar fromSan Diego on February 16, 2009 (the white square shows the radar’slocation).
| Pressure Level | Height | Temperature (°C) |
|---|
| 1000 mb | 8 | 13.7 |
| 925 mb | 730 | 7.7 |
| 850 mb | 1420 | 2.6 |
| 700 mb | 2970 | -6.9 |
| 600 mb | 4160 | -13.1 |
- Compute the environmental lapse rate for the 1000-925 mb layer,the 925-850 mb layer, the 850-700 mb layer, and the 700-600 mblayer. Express your answers in °C/km.
- Which layers are stable? Which layers are conditionallyunstable? How did you make your decisions?
