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GSSHA is a two-dimensional finite difference rainfall/runoff model. A finite difference grid is used to establish the computational domain and parameters for surface runoff. The GSSHA model is fully coupled with hydraulic stream flow/routing models. Parameters for stream channels are defined using arcs and then mapped to the appropriate underlying grid cells.
Gridded Surface Subsurface Hydrologic Analysis (GSSHA) is a two-dimensional finite difference rainfall/runoff model. A finite difference grid is used to establish the computational domain and parameters for surface runoff. The GSSHA model is fully coupled with hydraulic stream flow/routing models. Parameters for stream channels are defined using arcs and then mapped to the appropriate underlying grid cells.


According to the [http://www.gsshawiki.com/Overview:Overview GSSHA wiki overview] page, "features include two dimensional (2-D) overland flow, 1-D stream flow, 1-D infiltration, 2-D groundwater, and full coupling between the groundwater, shallow soils, streams, and overland flow. Sediment and constituent fate and transport are simulated in the shallow soils, overland flow plane, and in streams and channels. GSSHA can be used as an episodic or continuous model where soil surface moisture, groundwater levels, stream interactions, and constituent fate are continuously simulated. The fully coupled groundwater to surface-water interaction allows GSSHA to model basins in both arid and humid environments."[http://www.gsshawiki.com/Overview:Overview]
Features of GSSHA include 1D stream flow and infiltration, 2D overland flow and groundwater, and full coupling between the groundwater, shallow soils, streams, and overland flow.<ref name="GSSHA overview">{{cite web|url=http://www.gsshawiki.com/Overview:Overview|title=Overview:Overview|publisher=GSSHA Wiki|accessdate=April 26, 2019}}</ref> "Sediment and constituent fate and transport are simulated in the shallow soils, overland flow plane, and in streams and channels. GSSHA can be used as an episodic or continuous model where soil surface moisture, groundwater levels, stream interactions, and constituent fate are continuously simulated. The fully coupled groundwater to surface-water interaction allows GSSHA to model basins in both arid and humid environments."<ref name="GSSHA overview"/>


A detailed online reference manual for GSSHA is found here:
The GSSHA model can be added to a paid edition of WMS.<ref name="WMS Pricing">{{cite web|url=http://www.aquaveo.com/software/wms-pricing|title=WMS Editions & Pricing|publisher=Aquaveo|accessdate=April 26, 2019}}</ref>
[http://www.gsshawiki.com http://www.gsshawiki.com]


The GSSHA model can be added to a [http://www.aquaveo.com/software/wms-pricing paid edition] of WMS. [[Category:Link to Store]]
==GSSHA Menus==
==GSSHA Menus==
The main GSSHA menu is located in the 2D Grid module. Another GSSHA menu is located in the Map module. See the article [[WMS:GSSHA Menu|GSSHA Menu]] for more information.
There are two ''GSSHA'' menus in WMS:
*When in the '''Map''' [[File:Map Module Icon.svg|16px]] module, the ''GSSHA'' menu is available when a GSSHA coverage is selected. See [[WMS:GSSHA Menu#GSSHA Coverage Menu]] for more details.
*When in the '''2D Grid''' [[File:2D Grid Icon.svg|16px]] module, the main ''GSSHA'' menu is available. See [[WMS:GSSHA Menu#GSSHA Grid Menu]] for more details.


==GSSHA Files==
==GSSHA File Types==
The following are files types used in GSSHA. Many of the output files can also be used as input files.


Here are tables of some of the available files for GSSHA.
;AQE
:GSSHA lower extent of the aquifer file


* For more information on these files see the [http://gsshawiki.com/GSSHA_User%27s_Manual GSSHA online manual]
;CDP
:GSSHA channel flow depth output file in link/node format


{| class="wikitable"
;CDQ
|+'''Files'''
:GSSHA channel discharge output file in link/node format
!width="40" align="center"|Name
 
!width="250" align="center"|Description
;CIF
|-
:GSSHA channel input file
|PRJ||GSSHA [http://gsshawiki.com/File_Formats:Project_File_Format Project File]
 
|-
;CMT
|TRE||WMS Tree File
:GSSHA area property mapping table file
|-
 
|STO||WMS Stochastic Information File
;CST
|-
:GSSHA channel stage output file in link/node format
|MAP||WMS Map File
 
|-
;CVT
|OUT||GSSHA Output Summary File
:GSSHA channel velocity output file in link/node format
|-
 
|IDX||GSSHA Cell Index File
;DEP
|-
:GSSHA overland flow depth maps file
|PRO||GSSHA Projectioin File
 
|-
;DHT
|OTL||GSSHA Outlet Series Discharge File
:GSSHA channel depth hot start file
|-
 
|MSK||GSSHA Watershed Delineation Mask File
;DIK
|-
:GSSHA file containing no-flow embankments between overland grid cells
|ELE||GSSHA Cell Elevation File
 
|-
;DRN
|DEP||GSSHA Depth File
:GSSHA rainfall rate as it is being applied
|-
 
|CMT||GSSHA Area Property Mapping Table File
;DSC
|-
:GSSHA overland discharge output file
|}
 
;ELE
:GSSHA surface grid/cell elevation file
 
;EXT
:GSSHA replacement parameter or value file
 
;FGD
:GSSHA maximum water depth on the overland grid output file
 
;FST
:GSSHA maximum water depth on the stream network output file
 
;GAG
:GSSHA gaged or radar precip data input file
 
;GST
:GSSHA grid/stream file
 
;GWH
:GSSHA groundwater heads file
 
;IDP
:GSSHA infiltration depth file
 
;IDX
:GSSHA cell index file
 
;IHL
:GSSHA hydrograph output locations file
 
;ITH
:GSSHA soil moisture output locations file
 
;LSP
:GSSHA file containing low spots for overtopping on the embankments
 
;MAP
:WMS map file
 
;MSK
:GSSHA watershed delineation mask file
 
;OAL
:GSSHA gridded output file of overland algal mass and concentration
 
;OCB
:GSSHA gridded output file of overland CBOD mass and concentration
 
;ODO
:GSSHA gridded output file of overland DO mass and concentration
 
;ODP
:GSSHA gridded output overland depths file, written at the end of the simulation
 
;OHL
:GSSHA hydrograph output file
 
;ON2
:GSSHA gridded output file of overland NO2 mass and concentration
 
;ON3
:GSSHA gridded output file of overland NO3 mass and concentration
 
;ON4
:GSSHA gridded output file of overland NH4 mass and concentration
 
;OON
:GSSHA gridded output file of overland ON mass and concentration
 
;OOP
:GSSHA gridded output file of overland OP mass and concentration
 
;OP4
:GSSHA gridded output file of overland PO4 mass and concentration
 
;OPT
:GSSHA values of event peak flow and event volume for use by external optimization methods output file
 
;OTH
:GSSHA soils moisture time series output file
 
;OTL
:GSSHA outlet hydrograph time series discharge file
 
;OUT
:GSSHA output summary file
 
;OVN
:GSSHA roughness file
 
;PRJ
:GSSHA project file
 
;PRO
:GSSHA projection file
 
;QHT
:GSSHA channel flow hot start file
 
;SMO
:GSSHA soil moisture output file
 
;SMT
:GSSHA streams mapping table file
 
;SRC
:GSSHA point and non-point loadings file
 
;STO
:WMS stochastic information file
 
;SUM
:GSSHA summary output file
 
;TON
:GSSHA gridded output file of total N mass and concentration
 
;TOP
:GSSHA gridded output file of total P mass and concentration
 
;TRE
:WMS tree file
 
;TS
:GSSHA time series input file
 
;WTE
:GSSHA initial water table elevation file


==Cell Properties==
==Cell Properties==
The 2D grid cell properties include an ''I'', ''J'' location and a scalar or index map value. The scalar or index map value is associated with the currently selected dataset in the Project Explorer and can be edited in the Properties Window. The ''I'', ''J'' location can be viewed but cannot be edited in the Properties Window. The 2D grid contours are a way of visualizing the spatial variation of the scalar or index map values for the selected dataset.
The 2D grid cell properties include an ''I,J'' location and a scalar or index map value. The scalar or index map value is associated with the currently selected dataset in the Project Explorer and can be edited in the Properties Window. The ''I,J'' location can be viewed but not dited in the Properties Window. The 2D grid contours are a way of visualizing the spatial variation of the scalar or index map values for the selected dataset.
 
==References==
{{reflist}}




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[[Category:GSSHA Dialogs|G]]
[[Category:GSSHA Dialogs|G]]
[[Category:External Links]]
[[Category:External Links]]
[[Category:Link to Store]]

Revision as of 21:24, 26 April 2019

Gridded Surface Subsurface Hydrologic Analysis (GSSHA) is a two-dimensional finite difference rainfall/runoff model. A finite difference grid is used to establish the computational domain and parameters for surface runoff. The GSSHA model is fully coupled with hydraulic stream flow/routing models. Parameters for stream channels are defined using arcs and then mapped to the appropriate underlying grid cells.

Features of GSSHA include 1D stream flow and infiltration, 2D overland flow and groundwater, and full coupling between the groundwater, shallow soils, streams, and overland flow.[1] "Sediment and constituent fate and transport are simulated in the shallow soils, overland flow plane, and in streams and channels. GSSHA can be used as an episodic or continuous model where soil surface moisture, groundwater levels, stream interactions, and constituent fate are continuously simulated. The fully coupled groundwater to surface-water interaction allows GSSHA to model basins in both arid and humid environments."[1]

The GSSHA model can be added to a paid edition of WMS.[2]

GSSHA Menus

There are two GSSHA menus in WMS:

GSSHA File Types

The following are files types used in GSSHA. Many of the output files can also be used as input files.

AQE
GSSHA lower extent of the aquifer file
CDP
GSSHA channel flow depth output file in link/node format
CDQ
GSSHA channel discharge output file in link/node format
CIF
GSSHA channel input file
CMT
GSSHA area property mapping table file
CST
GSSHA channel stage output file in link/node format
CVT
GSSHA channel velocity output file in link/node format
DEP
GSSHA overland flow depth maps file
DHT
GSSHA channel depth hot start file
DIK
GSSHA file containing no-flow embankments between overland grid cells
DRN
GSSHA rainfall rate as it is being applied
DSC
GSSHA overland discharge output file
ELE
GSSHA surface grid/cell elevation file
EXT
GSSHA replacement parameter or value file
FGD
GSSHA maximum water depth on the overland grid output file
FST
GSSHA maximum water depth on the stream network output file
GAG
GSSHA gaged or radar precip data input file
GST
GSSHA grid/stream file
GWH
GSSHA groundwater heads file
IDP
GSSHA infiltration depth file
IDX
GSSHA cell index file
IHL
GSSHA hydrograph output locations file
ITH
GSSHA soil moisture output locations file
LSP
GSSHA file containing low spots for overtopping on the embankments
MAP
WMS map file
MSK
GSSHA watershed delineation mask file
OAL
GSSHA gridded output file of overland algal mass and concentration
OCB
GSSHA gridded output file of overland CBOD mass and concentration
ODO
GSSHA gridded output file of overland DO mass and concentration
ODP
GSSHA gridded output overland depths file, written at the end of the simulation
OHL
GSSHA hydrograph output file
ON2
GSSHA gridded output file of overland NO2 mass and concentration
ON3
GSSHA gridded output file of overland NO3 mass and concentration
ON4
GSSHA gridded output file of overland NH4 mass and concentration
OON
GSSHA gridded output file of overland ON mass and concentration
OOP
GSSHA gridded output file of overland OP mass and concentration
OP4
GSSHA gridded output file of overland PO4 mass and concentration
OPT
GSSHA values of event peak flow and event volume for use by external optimization methods output file
OTH
GSSHA soils moisture time series output file
OTL
GSSHA outlet hydrograph time series discharge file
OUT
GSSHA output summary file
OVN
GSSHA roughness file
PRJ
GSSHA project file
PRO
GSSHA projection file
QHT
GSSHA channel flow hot start file
SMO
GSSHA soil moisture output file
SMT
GSSHA streams mapping table file
SRC
GSSHA point and non-point loadings file
STO
WMS stochastic information file
SUM
GSSHA summary output file
TON
GSSHA gridded output file of total N mass and concentration
TOP
GSSHA gridded output file of total P mass and concentration
TRE
WMS tree file
TS
GSSHA time series input file
WTE
GSSHA initial water table elevation file

Cell Properties

The 2D grid cell properties include an I,J location and a scalar or index map value. The scalar or index map value is associated with the currently selected dataset in the Project Explorer and can be edited in the Properties Window. The I,J location can be viewed but not dited in the Properties Window. The 2D grid contours are a way of visualizing the spatial variation of the scalar or index map values for the selected dataset.

References

  1. ^ a b "Overview:Overview". GSSHA Wiki. http://www.gsshawiki.com/Overview:Overview. Retrieved on April 26, 2019. 
  2. ^ "WMS Editions & Pricing". Aquaveo. http://www.aquaveo.com/software/wms-pricing. Retrieved on April 26, 2019. 


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GSSHA
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