DEPARTMENT OF GEOSCIENCES | NAME_________________________ |

SAN FRANCISCO STATE UNIV | Meteorology 201 |

Due Tuesday, 5/13/09

*What is the surface divergence or convergence at San Francisco (sealevel) if the vertical velocity at the Level of Non-divergence is -16.2 cm s ^{-1}?*

Constraints (listed in the handout discussing the simplified equation of continuity and Dine's Compensation or discussed in class):

- The vertical velocities at the Tropopause and at the surface (1000 mb) are zero.
- The Level of Non-divergence is at, roughly, the 500 mb level.
- The 500 mb height is 560 dm.
- You can assme that the divergence and convergence that occur because of Dine's Compensation take place in the upper troposphere just underneath the tropopause and in the lower troposphere just at the surface.

**Make sure you lay out the procedure carefully. Full credit not given for a scrawled answer. The drawing below should help you visualize the problem.**