D-R-A-F-T
CI CARD: Clay Characteristics By ID
Required for Clay
Card Description: Active parameters on this card cause the program to use the
specified parameter values in place of the default values
Field
Variable
Value
Description
0, C 1-2
Card group identifier.
IC1
CI
≥0
1
IDCL
ID type number
(#1 is freshly deposited and unconsolidated)
If IDCL > MNCL (CC card) do not consolidate
≥0
2
THKTYP
Typical layer thickness (m) for this id type
<0
Default = .03 meters
≥0
Bed shear stress at which cohesive particles begin to
3
TAUP
erode (Newtons/sq m)
Default = 0.06 n/m2
<0
≥0
4
PERC
Erosion rate constant for particle erosion
Default = 0.002 kg/m2/sec
<0
≥0
Bed shear stress at which cohesive layers begin to
5
QSI
erode in mass (newtons/m2)
Default = 0.06, .12, .41, and 3.4 for layers 1 through
<0
4 and 3.4 (n/m2) for layers 5 through MNCL
≥0
Bed shear stress at which cohesive at age = 1 year
6
QSE
begin to erode in mass (n/m2)
<0
Default = 1.1 x QSI values (see above)
≥0
Initial dry density of a deposit of this type of
7
RHOI
cohesive material (kg/m3)
Default = 90, 108, 144, and 263 for layers 1 through
<0
4 and 402 for layers type 5 through MNCL
≥0
The consolidated dry density of deposits of this type
8
RHOE
of cohesive material at age = 1 year.
<0
Default = 1.1 times default values for RHOI (above)
≥0
Consolidation coefficient relating the change from
9
CCC
RHOE and QSE to time in years
<0
CCC=reference time (days) for QSE and RHOE
NOTE: Values of the variables in Fields 5-8 vary widely among sediment types.
The default values may be wrong for a given sediment. ID types are numbered such
that the highest number is the deepest core.
NOTE: CC card should precede CI cards.
82 Run Control CI Card
Users Guide To SED2D-WES
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