Name _________________________ 

Date __________________________

 

 

 

 

 

 

 

 

 

 

Meteorology 415/715

Spring 2013

 

 

 

Lab and Homework Assignments 3

 

Basic Satellite Analysis Techniques for Meteorologists

Due Beginning of Class, Monday 15 April 2013

400 points

 

 

 
  1. All labs are to be kept in a three hole binder. Turn in the binder when you have finished the Lab.
  2. Show all work in mathematical problems. No credit given if only answer is provided.
  3. Questions requiring a written answer should be completed thoughtfully. Sentences should be complete with a subject, a verb and an object. One word, or one phrase answers will be penalized.


Part I

All are 7 points. (126 points in this section)

Locate the following features by placing the appropriate letters on the hard copies of the appropriate satellite image (click on Thumbnail to obtain large version for printing).

Image 1

Image 1

1830 UTC 2 March 1999

Hybrid

Channels 1, 2, 4

i. A cloud shield. (S)

ii. A Narrow Cold Frontal Rain Band (NCFR)

iii. A cloud street (St)

iv. Snow (Sn)

v. Stratus (Str)

vi. An area of texture (indicating either cumuliform tops or mutlilayered cloud decks) (T)

Image 2

Image 2

2000 UTC 22 February 2000

Hybrid

Channels 1, 2, 4

vii. Stratocumulus (closed-cellular pattern) (SC)

viii.Cumulus (open-cellular pattern (CU)

ix. A Narrow Cold Frontal Rain Band (NCFR)

Image 3

Image 3

1930 UTC 25 November 1998

Hybrid

Channels 1, 2, 4

x. Cirrostratus (Cs)

xi. A subsynoptic (large mesoscale) area of cumulonimbus anvils (CBA)

xii. Mountain Wave clouds (MW)

xiii. Higher clouds casting shadows on lower clouds (Shadow)

xiv. Incipient Frontal Wave Cyclone (IFW)

xv.Altostratus (As)

xv. Area where image suggests that upper tropospheric flow is NOT in phase with mid tropospheric flow (NIP)

xvi. An area of enhanced cumulus (EC)

xvii. Cirrus (Ci)


Part II

The visible, enhanced infrared and water vapor GOES-10 satellite images for approximately 1200 UTC 18 February 2003 are provided below. (60 points in this section)

 

Image A: Visible

 

Image B: 16 km Enhanced IR

 

Image C: Water Vapor

Image D: 28 km Enhanced IR

1. On the blank map provided, sketch the upper tropospheric flow (streamlines) for the entire north Pacific (use Images B and D primarily for this). (40 points)

2. Note on the infrared image (conventional notation): (40 points)

  1. Two long wave trough axes (black) (10 pts)
  2. Two long wave ridge axes (blue) (10 pts)
  3. A short wave trough axis. (purple) (10 pts)
  4. a sharp (green) and a broad (red) ridge axis (could be the same one/s you used in B. above). (10 pts)

4. Discuss why "sharp ridgelines" have little or no cirrus cloudiness past the ridgeline where as "broad ridgelines" often do. (10 points)

Part III. Satellite Oceanography (114 points in this section)

5. Get into this website: http://eddy.colorado.edu/ccar/goes/sst_viewer

 

(a) Create a map of SST's for the West Coast of the U.S. for July 4, 2007. Use the Global High Resolution Sea Surface Temperature data set. Use the following formatting options: Region....US West Coast; .Data Options: Leave defaults. Plot options: PNG. Print the map in color.(30 points)

 

(b) Indicate with the letter "U" the most dramatic upwelling plumes. (10 points)

 

(c) Indicate with a long arrow, the rough position of the California Current. (9 points)

 

6. Get into this website: http://www.cdc.noaa.gov/HistData/

 

(a) Create a map of sea-level pressure for the West Coast of the U.S. for July 4, 2007. Use the following options: start and end date are both 20070704; Variable is sea level pressure; Plot Type is mean; Map Domain is Custom; Latitude Range is 25 to 55; Longitude Range is 217 to 255; Color is Black/White; Shading Type is Contours Only; Contour Interval is 2, Range is 998 to 1024; Plot Size is 150%. Print the map. (30 points).

 

(b) Indicate the sense of the winds with schematic short vectors along the California Coast. (10 points)

 

(c) Briefly discuss the relationship between (b) here and your answer in 5 (b). (15 points)

 

Part IV. Common Problem Set for both Meteorologists and Oceanographers