Metr 415/715                                    Name __________________________

Quiz 2 Spring 2011

Part A.

Meteorologists Only. (114 points) Using correct color and symbol conventions, analyze the portion of following image (boxed portion only), indicating the following:

  1. Surface (50 points)
    • Surface Fronts (36 pts)
    • Surface Lows (14 pts)
  2. Cloud Features
    • A large area of open cell cumulus (OC) (7 pts)
    • A large area of closed cell cumulus (CC) (7 pts)
  3. Middle/Upper Tropospheric (50 points)
    • Ridges and Troughs (20 pts),
    • Closed Lows (6 pts)
    • 500 mb jet stream (blue) (12 ptts)
    • 300 mb jet stream (purple) (12 pts)

Oceanographers Only. (64 points) Using correct color and symbol conventions, analyze the portion of following image (boxed portion only), indicating the following:

  1. Ocean Temperatures on Basis of Cloud Features
    • Area in which sea surface temperatures are warmer than overlying atmosphere (based upon cloud features) (W) (7 pts)
    • Area in which sea surface temperatures are colder than overlying atmopshere (based upon cloud features) (C) (7 pts)
  2. Middle/Upper Tropospheric (50 points)
    • Ridges and Troughs (20 pts),
    • Closed Lows (6 pts)
    • 500 mb jet stream (blue) (12 pts)
    • 300 mb jet stream (purple) (12 pts)
Quiz2

 

 

 

 

 

 

Part B.

The charts below, from left to right, are the sea-surface temperatures (C) (Map 1), current speeds and streamlines (Map 2) and sea-surface altimetery (Map 3) for the Gulf of Mexico for April 18, 2011.

Meteorologists Only. (36 points) Using correct color and symbol conventions, analyze the portion of following image (boxed portion only), indicating the following:

  1. Ocean Current Features
    • Loop current (LC) (10 pts) (Map 2)
    • A warm ring associated with an eddy in the strongfest current (WR) (13 pts) (Map 1)
    • Explain why warm rings are associated (in the Northern Hemisphere) with anticyclonic eddies. (13 pts)

Oceanographers Only.. (86 points).

  1. Geostrophy (50 points)
    • Explain how, together, maps 2 and 3 illustrate that the Loop Current is in basic geostrophic balance.
  2. Ocean Current Features
    • Loop current (LC) (10 pts) (Map 2)
    • A warm ring associated with an eddy in the strongfest current (WR) (13 pts) (Map 1)
    • Explain why warm rings are associated (in the Northern Hemisphere) with anticyclonic eddies. (13 pts)

SST

Map 1

Current

Map 2

Altimetry

Map 3