| 1
Model identification |
Soil
Erosion Network - Model |
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1.1
Model name |
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1.2
Most recent version |
3.2 |
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1.3
Date of release |
December
1994 |
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| 2
Water erosion |
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| 3
Contact person |
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3.1
Name |
Prof.A.Sidorchuk |
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3.2
Address |
Lab
of Soil Erosion and Fluvial Processes,Geographical Faculty,
Moscow State University, 119899 Moscow, Russia |
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3.3
Tel |
+7
095 9395697 |
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3.4
Fax |
+7
095 9328836 |
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3.5
Email |
sidor@yas.geogr.msu.su
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| 4
Model Author(s) |
Professor
A. Sidorchuk |
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| 5
Model components |
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5.1
Water erosion and thermoerosion: |
Based
on sediment budget equation |
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5.2
Wind erosion: |
No |
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5.3
Hydrology: |
Simulated
or observed hydrograph |
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5.4
Site/topography: |
Initial
slope longitudinal profile |
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5.5
Plant growth: |
No |
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5.6
Management: |
No |
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5.7
Soil: |
Multiple
layers |
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5.8
Chemistry: |
No |
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5.9
Weather: |
For
used hydrological model |
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| 6
Model characteristics |
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6.1
Spatial |
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6.1.1
Class of area: |
Catchment |
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6.1.2
Flow routing system: |
Streamline |
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6.1.3
Minimum area: |
Point |
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6.1.4
Maximum area: |
No
limit, in practice about 10-50 km |
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6.2.
Temporal |
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6.2.1
Timestep: |
Daily
and less |
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6.2.2
Single or multiple event? |
Multiple |
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6.2.3
Maximum simulation duration: |
30-50
years |
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| 7
Model's representation of processes |
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7.1
Water erosion processes |
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7.1.1
Interrill: |
No |
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7.1.2
Rill: |
Modelled
at the upper part of catchment |
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7.1.3
Gully: |
The
main model |
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7.1.4
Streambank: |
In
form of mass movement on the gully sides |
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7.1.5
Deposition: |
Modelled
with low accuracy, better to exclude |
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7.2
Wind erosion processes: |
No |
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7.2.1
Creep/surface roll: |
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7.2.2
Saltation: |
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7.2.3
Suspension |
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7.3
Hydrological processes: |
Simulated
separately |
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7.3.1
Evaporation/transpiration: |
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7.3.2
Runoff: |
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7.3.3
Infiltration |
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7.3.4
Subsurface flow: |
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7.3.5
Return flow |
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7.4
Plant processes: |
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7.4.1
Light interception and photsynthesis: |
No |
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7.4.2
Dry matter and residue |
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7.4.3
Root growth: |
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7.4.4
Pests: |
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7.4.5
CO2 sensitivity: |
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7.5
Soil: |
Multiple
layer system; properties changes when layer eroded away |
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7.5.1
Crust development |
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7.5.2
Aggregate properties |
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7.6
Chemistry: |
No |
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7.6.1
Nutrients: |
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7.6.2
Carbon |
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7.6.3
Pesticides |
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7.6.4
Other contaminants |
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7.7
Weather: |
No |
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7.8
Other: |
1.
Stable gully cross-section profile is modelled after each hydrological
event
2. The
critical velocity of erosion initiation is calculated, mainly
for the upper soil layer with vegetation cover and residue
3. The
process of thermoerosion is simulated for the period of negative
temperatures of the eroded layer.
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| 8
Input Data (* = Mandatory) |
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8.1
Weather: |
Row
of the air temperature for the thaw period |
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8.2
Soil: |
Erosivity
coefficient (not from USLE) for each soil layer: water resistant
soil aggregates diameter mean soil particles diameter cohesion
angle of internal friction density porosity elevations of top
surface of soil layer (longitudinal profile) roughness coefficient
(after Manning)
Erosivity
coefficient (not from USLE) for each soil layer: coefficient
of the thermoerosion; coefficient of temperature conductivity;
water resistant soil aggregates diameter; mean soil particles
diameter; cohesion; angle of internal friction; density porosity;
ice content; elevations of top surface of soil layer (longitudinal
profile); roughness coefficient (after Manning)
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8.3
Hydrology: |
Row
of specific discharge values for the thaw period and warm period |
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8.4
Plant cover: |
No |
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8.5
Soil surface cover: |
Density
of the grass roots in the upper soil layer |
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8.6
Management: |
No |
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8.7
Topography/site characteristics: = |
Longitudinal
profile in elevationsalong initial streamline; -catchment area
change along this line |
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8.8
Micro-topography: |
No |
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8.9
Other |
1.
Empirical relation between flow width and discharge
2. Empirical
relation between stable gully bottom width and discharge
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| 9
Output data |
Gully
longitudinal profile evolution during the simulation period
in hydrological event resolution listing of:
- for each event number of erosion episodes and thermoerosion
episodes
- elevations
of bottom surface along the gully
- gully depth along the gully
- gully bottom and top width along the gully
- gully volume along the gully
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| 10
Programming language |
FORTRAN-90 |
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| 11
Computer requirements |
Any
with FORTRAN translator |
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| 12
Documentation |
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12.1
Scientific documentation: |
A.
Sidorchuk (in press) Gully erosion and thermoerosion on the
Yamal Peninsula. |
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12.2
User's guide: |
In
FORTRAN listing comments |
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12.3
Technical documentation: |
Reports
in Russian |
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| 13
Availability |
On
request from author |
| 14
Other Relevant Information |
No |
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