| 1
Model identification |
Soil
Erosion Network - Model |
|
|
|
1.1
Model name |
AUSGUL
-Water Erosion |
|
1.2
Most recent version |
3.1 |
|
1.3
Date of release |
March
1992 |
|
|
| 2
Water erosion |
|
|
|
| 3
Contact person |
|
|
3.1
Name |
Professor
A. Sidorchuk |
|
3.2
Address |
Laboratory
of Soil Erosion and Fluvial Processes,
Geographical Faculty, Moscow State University,
119889 Moscow,
Russia |
|
3.3
Tel |
+7
095 939 5697 |
|
3.4
Fax |
+7
095 932 8836 |
|
3.5
Email |
sidor@yas.geogr.msu.su |
|
| 4
Model Author(s) |
Professor
A. Sidorchuk |
|
| 5
Model components |
|
5.1
Water erosion: |
Based
on sediment budget equation |
|
5.2
Wind erosion: |
No |
|
5.3
Hydrology: |
Simulated
or observed hydrograph |
|
5.4
Site/topography: |
Initial
slope longitudinal profile |
|
5.5
Plant growth: |
No |
|
5.6
Management: |
No |
|
5.7
Soil: |
Multiple
layers |
|
5.8
Chemistry: |
No |
|
5.9
Weather: |
For
used hydrogical model |
|
|
| 6
Model characteristics |
|
6.1
Spatial |
|
|
|
6.1.1
Class of area: |
Catchment |
|
|
6.1.2
Flow routing system: |
Streamline |
|
|
6.1.3
Minimum area: |
Point |
|
|
6.1.4
Maximum area: |
No
Limit, in practice about 10 - 50 sq.km |
|
6.2.
Temporal |
|
|
|
6.2.1
Timestep: |
Daily
and less |
|
|
6.2.2
Single or multiple event? |
Multiple |
|
|
6.2.3
Maximum simulation duration: |
Until
stable gully profile development |
|
|
| 7
Model's representation of processes |
|
|
7.1
Water erosion processes |
|
|
|
7.1.1
Interrill: |
No |
|
|
7.1.2
Rill: |
Modelled
at the upper part of catchment |
|
|
7.1.3
Gully: |
The
main model |
|
|
7.1.4
Streambank: |
In
form of mass movement on the gully sides |
|
|
7.1.5
Deposition: |
Modelled
with low accuracy, better to exclude |
|
7.2
Wind erosion processes: |
No |
|
7.3
Hydrological processes: |
Simulated
separately |
|
7.4
Plant processes: |
No |
|
7.5
Soil: |
Multiple
layer system; properties changes when layer eroded away |
|
7.6
Chemistry: |
No |
|
7.7
Weather: |
No |
|
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.
|
|
| 8
Input Data (* = Mandatory) |
|
8.1
Weather: |
For
used hydrological model |
|
8.2
Soil: |
Erosivity
coefficient (not from ULSE) 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 coefficeint
(after Manning) |
|
8.3
Hydrology: |
Row
of specific discharge values for the catchment |
|
8.4
Plant cover: |
No |
|
8.5
Soil surface cover: |
Density
of the grass roots in the upper soil layer |
|
8.6
Management: |
No |
|
8.7
Topography/site characteristics: |
Longitudinal
profile in elevations along initial streamline; - catchment
area change along this line |
|
8.8
Micro-topography: |
No |
|
8.9
Other |
1.
Empirical relation between flow width and discharge
2. Empirical
relation between stable gully bottom width and discharge
|
|
| 9
Output data |
Gully
longitudinal profile evolution during the simulation period
in hydrological event resolution listing of:
-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
|
|
| 10
Programming language |
FORTRAN
- 90 |
|
| 11
Computer requirements |
Any
with FORTRAN translator |
|
| 12
Documentation |
|
|
|
|
12.1
Scientific documentation: |
A.
Sidorchuk (1994) Static and dynamic Models for estimation of
the dimensions of gullies; In: G. Larinov and M. Nearing ed.
Proc of Int. Workshop on Soil Erosion. Perdue University. pp136-156 |
|
12.2
User's guide: |
In
FORTRAN listing comments |
|
12.3
Technical documentation: |
Reports
in Russian |
|
| 13
Availability |
Upon
request from author |
|
