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HALSTEDS BAY
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  Halsted's Bay Morphometry

The table below summarizes information about theHalsted's Bay basin. The lake has been "sliced" into layers, or slabs, of water that are 2 meters (6.5 feet) thick. The table reports the volume of each layer and the surface area at the middle of each layer. Adding up the layers yields a total volume of 18.9 x 106 m3 (cubic meters). The surface area of the lake was determined by GIS from the Landuse maps(lit cite) and equals 344 hectares (3.44 x 106 m2).

To estimate the area at the top of any layer, use the following formula: Regression of : Area (hectares) @ top of layer vs depth of layer top (meters) A(z) = (-20.86)*z + 291.6.

To estimate the volume of any 1 meter thick layer, use the following formula: Regression of: Volume of 1m layers versus mid-layer depth (z) V(z) = (-0.1974)*z + 2.827

Table 1
Morphometry of Halsted's Bay.
Areas in hectares (1 hectare [ha] = 10,000 m2).
LAYER (meters)
AREA
(hectares at mid-depth)
VOLUME
(x 105 m3)
0-2    
2-4    
4-6    
6-8    
8-10    
10-12    
12-14    
14-16    
16-18    
 Total Volume =  

 

Table 2
Complete depth profiles of area (at top of layers) and layer
volumes for Halsted's Bay. Z1 and z2 refer to the
top and bottom depths of a particular layer.
DEPTH
Z (meters)
AREA
@ top (hectares)
LAYER FROM
z1 to z2 (m)
LAYER VOLUME
(x106 m3)
0      
1      
2      
3      
4      
5      
6      
7      
8      
9      
10      
11      
12      
13      
14      
15      
16      
17      
  Total Volume =  

 

 
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http://www.waterontheweb.org/data/halsted/context/morphometry.html
date last updated: Tuesday March 09 2004