Model:ATS (The Advanced Terrestrial Simulator)


ATS (The Advanced Terrestrial Simulator)


Also known as Arctic Terrestrial Simulator
Model type Single
Model part of larger framework Amanzi
Note on status model
Date note status model
Incorporated models or components:
Spatial dimensions 1D, 1.5D, 2D, 3D
Spatial extent Landscape-Scale, Watershed-Scale, Reach-Scale, Patch-Scale, Grain-Scale, Point-Based
Model domain Terrestrial, Hydrology, Cryosphere
One-line model description The Advanced Terrestrial Simulator (formerly sometimes known as the Arctic Terrestrial Simulator) is a code for solving ecosystem-based, integrated, distributed hydrology.
Extended model description The Advanced Terrestrial Simulator (formerly sometimes known as the Arctic Terrestrial Simulator) is a code for solving ecosystem-based, integrated, distributed hydrology.

Capabilities are largely based on solving various forms of Richards equation coupled to a surface flow equation, along with the needed sources and sinks for ecosystem and climate models. This can (but need not) include thermal processes (especially ice for frozen soils), evapo-transpiration, albedo-driven surface energy balances, snow, biogeochemistry, plant dynamics, deformation, transport, and much more. In addition, we solve problems of reactive transport in both the subsurface and surface, leveraging external geochemical engines through the Alquimia interface.


integrated hydrologic model, Hydrological model, ecohydrology, Cryosphere,

Name Ethan Coon
Type of contact
Institute / Organization Oak Ridge National Laboratory
Postal address 1
Postal address 2
Town / City Oak Ridge
Postal code 37830
Country United States
Email address

Supported platforms
Unix, Linux, Mac OS, Windows
Other platform
Programming language


Other program language
Code optimized Multiple Processors
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development 2020
Does model development still take place? No
If above answer is no, provide end year model development 2023
Code development status Active
When did you indicate the 'code development status'? 2023
Model availability As code
Source code availability
(Or provide future intension)
Through web repository
Source web address
Source csdms web address
Program license type BSD or MIT X11
Program license type other
Memory requirements
Typical run time

Describe input parameters
Input format
Other input format
Describe output parameters
Output format
Other output format
Pre-processing software needed? No
Describe pre-processing software
Post-processing software needed? No
Describe post-processing software
Visualization software needed? No
If above answer is yes
Other visualization software

Describe processes represented by the model
Describe key physical parameters and equations
Describe length scale and resolution constraints
Describe time scale and resolution constraints
Describe any numerical limitations and issues

Describe available calibration data sets
Upload calibration data sets if available:
Describe available test data sets
Upload test data sets if available:
Describe ideal data for testing

Do you have current or future plans for collaborating with other researchers?
Is there a manual available? Yes
Upload manual if available:
Model website if any
Model forum / discussion board!forum/ats-users

This part will be filled out by CSDMS staff

OpenMI compliant No but possible
BMI compliant No but possible
WMT component No but possible
PyMT component No but possible
Is this a data component No
Can be coupled with:

Animation_model_name, Animation_model_name,

Model info
Ethan Coon
Qrcode ATS (The Advanced Terrestrial Simulator).png
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Input Files

Output Files