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Welcome! This is the users group for Amanzi-ATS, an integrated hydrologic code developed by the US Department of Energy and collaborators. All are welcome to join the conversation by requesting to join the group. When joining, please indicate (in the join request) your name and institution -- this helps us filter out bots.

Please prefer to use this group over directly emailing the developers. This both helps us, because a knowledge base can get formed, archived, and searched, and it helps you, because you might get a faster response from someone else who has had the same issue!

Source: https://github.com/amanzi/ats

Documentation: https://amanzi.github.io/ats/

Installation instructions: https://github.com/amanzi/amanzi/blob/master/INSTALL_ATS.md

Bugs and feature requests*: https://github.com/amanzi/ats/issues

* When to start an issue vs when to ask about it here: If you think it would be useful to get broader input, ask about it here. If you think it is clearly a bug and just needs to be fixed, open an issue, but you may get a faster response by also posting about it here. If you're asking for a new feature, put it here, though we may move the conversation to an issue if we plan to work on it. If you're not sure, ask about it here.

0 selected

Utkarsh Mital, … Coon, Ethan6

Aug 28

Visualization dump of cumulative ET

On the ticket, yes – otherwise it will get forgotten. It still won't happen until after the short

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Visualization dump of cumulative ET

On the ticket, yes – otherwise it will get forgotten. It still won't happen until after the short

Aug 28

Aug 7

Messages pending

Hi all, You may have seen some of the oddities in the user group messages order lately – for some

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Messages pending

Hi all, You may have seen some of the oddities in the user group messages order lately – for some

Aug 7

Neelarun Mukherjee, … Bo Gao6

Aug 7

Question on 09_arctic_hydrology_transport in ats-demos

Hi Neel, I see Ethan's earlier reply to Sam and I think Sam is correct, you should have the same

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Question on 09_arctic_hydrology_transport in ats-demos

Hi Neel, I see Ethan's earlier reply to Sam and I think Sam is correct, you should have the same

Aug 7

Yeonju Kim, Rathore, Saubhagya4

Aug 6

width and length ratio for tessalate_river_aligned in WW

Thank you so much, Dr. Saubhagya — your insight has opened up a new direction for me! I looked into

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width and length ratio for tessalate_river_aligned in WW

Thank you so much, Dr. Saubhagya — your insight has opened up a new direction for me! I looked into

Aug 6

Aug 5

ATS Short Course -- Registration Closes August 8!

Hi all, Just one last reminder; the ATS Short Course registration for all attendees, even virtual

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ATS Short Course -- Registration Closes August 8!

Hi all, Just one last reminder; the ATS Short Course registration for all attendees, even virtual

Aug 5

Rathore, Saubhagya

Jul 31

Cannot Install PETSc: non-compliant with C++14

Hi, I am trying to install ATS-1.6 but continue to encounter issues with PETSc. Below is the log from

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Cannot Install PETSc: non-compliant with C++14

Hi, I am trying to install ATS-1.6 but continue to encounter issues with PETSc. Below is the log from

Jul 31

Yi Xiao, Coon, Ethan6

Jul 30

Question on Mass Imbalance and Initial Condition Dependence in ATS-master Transport Simulations

Hi Ethan, My apologies for the delayed response; I was just back from travel. That's great to

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Question on Mass Imbalance and Initial Condition Dependence in ATS-master Transport Simulations

Hi Ethan, My apologies for the delayed response; I was just back from travel. That's great to

Jul 30

suraj shrestha, Ethan Coon2

Jul 30

problem after update 1.6

Watershed Workflow is not fully updated for ATS 1.6, so I wouldn't necessarily expect it to work

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problem after update 1.6

Watershed Workflow is not fully updated for ATS 1.6, so I wouldn't necessarily expect it to work

Jul 30

Amanzi-ATS Users, … Chuyang Liu4

Jul 29

ATS Release 1.6

Thanks for the clarification, Ethan! I am looking forward to the upcoming ATS short course! Best,

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ATS Release 1.6

Thanks for the clarification, Ethan! I am looking forward to the upcoming ATS short course! Best,

Jul 29

Xueyuan Kang, Coon, Ethan4

Jul 26

How to extract source contributions (surface runoff, soil, geology) to stream water in ATS

Velocity is m/s. I'm not sure what your goal in multiplying by area is. What area do you mean? A

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How to extract source contributions (surface runoff, soil, geology) to stream water in ATS

Velocity is m/s. I'm not sure what your goal in multiplying by area is. What area do you mean? A

Jul 26

Sam Shaheen, … Coon, Ethan14

Jul 22

Temperature for chemistry in the new master

Hi Ethan, Just wanted to check: was this an ok regression test for troubleshooting the issue? I know

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Temperature for chemistry in the new master

Hi Ethan, Just wanted to check: was this an ok regression test for troubleshooting the issue? I know

Jul 22

Amanzi-ATS Users

Jul 21

ATS Short Course Registration and Meeting Info

Hi all, The ATS Short Course will be held in Knoxville, TN and virtually, Sept 8-10. If you're

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ATS Short Course Registration and Meeting Info

Hi all, The ATS Short Course will be held in Knoxville, TN and virtually, Sept 8-10. If you're

Jul 21

Wyatt Tatge, Phong Le3

Jul 19

ATS Solute Mass Fluxes

Hi Wyatt, I looked at the surface_tracer_advection_diffusion_withsources.xml example. Initially, I

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ATS Solute Mass Fluxes

Hi Wyatt, I looked at the surface_tracer_advection_diffusion_withsources.xml example. Initially, I

Jul 19

Chuyang Liu, Zhi Li3

Jul 18

Question about the climate forcing datasets

Thank you all so much for sharing the info! I will take a close look at them! Best, Chuyang On

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Question about the climate forcing datasets

Thank you all so much for sharing the info! I will take a close look at them! Best, Chuyang On

Jul 18

Amanzi-ATS Users

Jul 8

ATS Short Course, Sept 8-10, Knoxville TN -- REGISTRATION

Hi all, We are excited to open registration for an ATS Short Course, to be held Sept 9-10 (with an

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ATS Short Course, Sept 8-10, Knoxville TN -- REGISTRATION

Hi all, We are excited to open registration for an ATS Short Course, to be held Sept 9-10 (with an

Jul 8

Jul 2

Visualization of WW results in paraview.

Hi all, I encountered some difficulties in visualizing the simulation results from ATS on a stream-

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Visualization of WW results in paraview.

Hi all, I encountered some difficulties in visualizing the simulation results from ATS on a stream-

Jul 2

Haoyuan YU, Coon, Ethan2

Jun 20

Transpiration Models in ATS

Rooting depth is described in Bhanja et al J Hydrology, 2023. The rel perm based down regulation is

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Transpiration Models in ATS

Rooting depth is described in Bhanja et al J Hydrology, 2023. The rel perm based down regulation is

Jun 20

Zhi Li, Ethan Coon3

Jun 19

[Survey Invitation] Share Your Input on ATS Model Data Archiving (MDA)

Hi all, it would be a really big help to get some more responses to this. We are trying (with an ESS

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[Survey Invitation] Share Your Input on ATS Model Data Archiving (MDA)

Hi all, it would be a really big help to get some more responses to this. We are trying (with an ESS

Jun 19

Sergi Molins Rafa, … Wyatt Tatge6

Jun 17

MPC for coupling energy and water in the subsurface without freezing

I ended up using the permafrost model etc as in the full energy example and added an arbitrarily low

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MPC for coupling energy and water in the subsurface without freezing

I ended up using the permafrost model etc as in the full energy example and added an arbitrarily low

Jun 17

Yi Xiao, Coon, Ethan3

Jun 17

strange concentration and mole_fraction with ats-master using multiple processors

Hi Ethan, Thanks for the quick fix and letting me know. I've pulled the latest master and

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strange concentration and mole_fraction with ats-master using multiple processors

Hi Ethan, Thanks for the quick fix and letting me know. I've pulled the latest master and

Jun 17

Jun 17

Flow IC issue w/ Transport PK

Hi all, I am running a flow and transport simulation using the new master, and I am getting an error

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Flow IC issue w/ Transport PK

Hi all, I am running a flow and transport simulation using the new master, and I am getting an error

Jun 17

Amanzi-ATS Users, Coon, Ethan2

Jun 13

ATS Short Course in September 2025

Hi all, Just a reminder to please take 30 seconds (literally all the time it will take) to fill out

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ATS Short Course in September 2025

Hi all, Just a reminder to please take 30 seconds (literally all the time it will take) to fill out

Jun 13

Utkarsh Mital, Coon, Ethan2

Jun 13

MODIS LAI time resolution

There is always an interpolation under the hood, even in the daily data case. ATS is a variable

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MODIS LAI time resolution

There is always an interpolation under the hood, even in the daily data case. ATS is a variable

Jun 13

chen ding, … Coon, Ethan7

Jun 11

Question about GW discharge of a catchment with frozen ground.

Hi Ethan, Thank you for your prompt response. The physics does works in 2D, and I will doble check my

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Question about GW discharge of a catchment with frozen ground.

Hi Ethan, Thank you for your prompt response. The physics does works in 2D, and I will doble check my

Jun 11

Saubhagya Singh Rathore, … Xueyuan Kang3

Jun 9

Anisotropic Permeability Field for Hydrology Runs

Hello all, I'm wondering whether the current version of ATS (either 1.5 or the master branch)

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Anisotropic Permeability Field for Hydrology Runs

Hello all, I'm wondering whether the current version of ATS (either 1.5 or the master branch)

Jun 9

Lijing Wang, Coon, Ethan2

Jun 9

Transport update, pressure evaluator syntax error

Pressure should not be used on the transport tag. So most likely what is happening is that saturation

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Transport update, pressure evaluator syntax error

Pressure should not be used on the transport tag. So most likely what is happening is that saturation

Jun 9

Sam Shaheen, … Coon, Ethan12

Jun 5

Coupled flow and transport PK with more complex water balance

Ok, seems like we need to do some more parallel testing. Thanks for checking, Ethan From: ats-users@

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Coupled flow and transport PK with more complex water balance

Ok, seems like we need to do some more parallel testing. Thanks for checking, Ethan From: ats-users@

Jun 5

Rathore, Saubhagya, Coon, Ethan8

Jun 3

Issue with PETSc Installation: C++ compiler (/opt/homebrew/bin/mpicxx) appears non-compliant with C++14

HI Ethan, The hillslope_inf-np2.xml test is now running fine in parallel—I had to reinstall ATS to

unread,

Issue with PETSc Installation: C++ compiler (/opt/homebrew/bin/mpicxx) appears non-compliant with C++14

HI Ethan, The hillslope_inf-np2.xml test is now running fine in parallel—I had to reinstall ATS to

Jun 3

Yi Xiao, Phong Le3

Jun 2

Question on getting boundary mass fluxes in ATS-PFLOTRAN

Hi Phong, Thank you for your reply and suggestion. It solved my issue partially, but I'm still

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Question on getting boundary mass fluxes in ATS-PFLOTRAN

Hi Phong, Thank you for your reply and suggestion. It solved my issue partially, but I'm still

Jun 2

P. James Dennedy-Frank, … Coon, Ethan5

May 30

ATS installation error

Variable density flow is fine on ats-1.5. There have been significant changes to transport in general

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ATS installation error

Variable density flow is fine on ats-1.5. There have been significant changes to transport in general

May 30

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