EPIC / APEX Modeling Forum

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Carlos Alberto Arnillas, Luca8

Sep 15

Issue running APEX

Carlos, I am having a different error. It happens in a different subroutine from the one you posted

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Issue running APEX

Carlos, I am having a different error. It happens in a different subroutine from the one you posted

Sep 15

Javier Fernando Mendez Monroy

Aug 31

About Objective Function-OF (PBIAS and NSE)

Good morning. I am evaluating the OF equation for my data. This equation is expressed as OF=√(〖(1-NSE

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About Objective Function-OF (PBIAS and NSE)

Good morning. I am evaluating the OF equation for my data. This equation is expressed as OF=√(〖(1-NSE

Aug 31

Javier Fernando Mendez Monroy

Aug 23

Sensitivity Index Values

Hello everyone. I am performing sensitivity analysis using Sobol and Morris Method. Is there a

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Sensitivity Index Values

Hello everyone. I am performing sensitivity analysis using Sobol and Morris Method. Is there a

Aug 23

Rem Confesor Jr., Luca2

Aug 10

SOIL BULK DENSITY Dynamics

Hi, Looking at the model source code, I am not able to locate that exact equation. In APEX, the bulk

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SOIL BULK DENSITY Dynamics

Hi, Looking at the model source code, I am not able to locate that exact equation. In APEX, the bulk

Aug 10

Carlos Alberto Arnillas, Luca2

Jul 26

algorithm to codify water routing

Dear Carlos, You can find information on how the subareas must be connected to each other in the

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algorithm to codify water routing

Dear Carlos, You can find information on how the subareas must be connected to each other in the

Jul 26

Carlos Alberto Arnillas, Luca4

Jul 22

heat units vs growing days

Carlos, Unfortunately, the model does not provide information on the flowering period and does not

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heat units vs growing days

Carlos, Unfortunately, the model does not provide information on the flowering period and does not

Jul 22

万赐航, Luca4

Jul 22

Write Default Inputs

I do not have enough information to understand what is creating the problem and, as a consequence, I

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Write Default Inputs

I do not have enough information to understand what is creating the problem and, as a consequence, I

Jul 22

Jul 22

Hi, The error you are reporting seems to be related to permission to access to the specific folder

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Hi, The error you are reporting seems to be related to permission to access to the specific folder

Jul 22

Ratnajit Saha, Luca2

Jul 20

ArcAPEX subarea delineation

Dear Ratnajit, I don't recall receiving any email with shape files, but I recall the previous

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ArcAPEX subarea delineation

Dear Ratnajit, I don't recall receiving any email with shape files, but I recall the previous

Jul 20

Carlos Alberto Arnillas, Luca4

Jul 20

Newest ArcApex version

Yes, APEX will be in FORTRAN, and it will be possible to have access to the code. I am not sure about

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Newest ArcApex version

Yes, APEX will be in FORTRAN, and it will be possible to have access to the code. I am not sure about

Jul 20

Wuyan Yan, Luca2

Jul 12

When searching for "APEX model user manual", the very first link produced by Google is...

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When searching for "APEX model user manual", the very first link produced by Google is...

Jul 12

Ratnajit Saha, Luca2

Jul 12

Stream network in ArcAPEX subarea delineation

Dear Ratnajit, It is hard to tell what is creating the error, and, to be honest, I have no idea of

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Stream network in ArcAPEX subarea delineation

Dear Ratnajit, It is hard to tell what is creating the error, and, to be honest, I have no idea of

Jul 12

Jul 9

Preparations of Input Data for EPIC/APEX

Hi, EPIC/APEX (as well as other process-based models) usually need a lot of detailed input data for

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Preparations of Input Data for EPIC/APEX

Hi, EPIC/APEX (as well as other process-based models) usually need a lot of detailed input data for

Jul 9

Javier Fernando Mendez Monroy, Luca4

Jul 5

New WINAPEX version

You should have received the link already. Anyway, I sent it again at the email address you used to

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New WINAPEX version

You should have received the link already. Anyway, I sent it again at the email address you used to

Jul 5

Javier Fernando Mendez Monroy, Luca3

Jul 2

About nitrogen comparisons

Thank you so much. I will be very attentive to your response. On Monday, June 21, 2021 at 11:40:24 AM

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About nitrogen comparisons

Thank you so much. I will be very attentive to your response. On Monday, June 21, 2021 at 11:40:24 AM

Jul 2

Claire Baffaut, Luca2

Jun 25

Hello Claire, If I remember correctly, you are using APEX. In this case, the daily yield is not

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Hello Claire, If I remember correctly, you are using APEX. In this case, the daily yield is not

Jun 25

minfeng tang, … Luca26

Jun 23

about weather data format

It would be great if we could have a virtual talk and take a look at my files together. Please let me

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about weather data format

It would be great if we could have a virtual talk and take a look at my files together. Please let me

Jun 23

Carlos Alberto Arnillas, Luca2

Jun 21

Understanding ArcAPEX fertilizer and crop codes

Carlos, You are reading the tables right. Luca On Thursday, June 17, 2021 at 8:04:59 PM UTC-5

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Understanding ArcAPEX fertilizer and crop codes

Carlos, You are reading the tables right. Luca On Thursday, June 17, 2021 at 8:04:59 PM UTC-5

Jun 21

Jun 14

About EPIC1102 Code

Thank you so much, Luca. I am actually modifying the EPIC code so that the EPIC model would be much

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About EPIC1102 Code

Thank you so much, Luca. I am actually modifying the EPIC code so that the EPIC model would be much

Jun 14

minfeng tang, … Luca17

Jun 4

questions about subarea delineation or scenario simulation

Thanks for letting me know. Sincerely, Minfeng On Friday, June 4, 2021 at 9:41:47 AM UTC-5 Luca wrote

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questions about subarea delineation or scenario simulation

Thanks for letting me know. Sincerely, Minfeng On Friday, June 4, 2021 at 9:41:47 AM UTC-5 Luca wrote

Jun 4

Matteo Longo, Luca6

Jun 3

"Start graze" works on a single day

Dear Luca, Thank you for your help. Following your suggestions it does work now! Bests, Matteo Il

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"Start graze" works on a single day

Dear Luca, Thank you for your help. Following your suggestions it does work now! Bests, Matteo Il

Jun 3

Wahu Kamamia, … Luca15

May 25

Poor calibration of poplar Trees

Ann, The fact that the runoff is zero is quite suspicious. It means that all the water is

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Poor calibration of poplar Trees

Ann, The fact that the runoff is zero is quite suspicious. It means that all the water is

May 25

Adam Gallaher, Luca7

May 25

New EPIC user: Switchgrass yield for Connecticut

Hello Luca, This was very helpful and has given me a lot to think about. I will need to do some more

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New EPIC user: Switchgrass yield for Connecticut

Hello Luca, This was very helpful and has given me a lot to think about. I will need to do some more

May 25

Carlos Alberto Arnillas, … Luca30

May 17

Low sand values cause the model to generate NA values in RZSW

Thanks Luca! I will look at it shortly Carlos Alberto On Monday, May 17, 2021 at 11:31:24 AM UTC-4

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Low sand values cause the model to generate NA values in RZSW

Thanks Luca! I will look at it shortly Carlos Alberto On Monday, May 17, 2021 at 11:31:24 AM UTC-4

May 17

Burak Isik, Luca4

May 11

Dear Burak, I have never seen these errors before and I am trying to understand when they happen. I

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Dear Burak, I have never seen these errors before and I am trying to understand when they happen. I

May 11

Sayantan Samanta, Luca4

May 5

Error while using hourly rainfall

Dear Sayantan, I am sorry but I lost track of this topic and this is why I am replying so late. To be

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Error while using hourly rainfall

Dear Sayantan, I am sorry but I lost track of this topic and this is why I am replying so late. To be

May 5

Wahu Kamamia, Luca2

May 5

Modelling agroforestry

I am not sure I understand correctly what you want to simulate but, the management you have created

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Modelling agroforestry

I am not sure I understand correctly what you want to simulate but, the management you have created

May 5

minfeng tang, Jaehak5

May 4

is ArcAPEX compitable with ArcGIS pro 2.7.3

FYI: The ArcAPEX (beta version) is compatible with ArcGIS 10.7.1. Thank you Jaehak! Sincerely,

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is ArcAPEX compitable with ArcGIS pro 2.7.3

FYI: The ArcAPEX (beta version) is compatible with ArcGIS 10.7.1. Thank you Jaehak! Sincerely,

May 4

Carlos Alberto Arnillas, Luca8

Apr 9

Estimating water balance from .SAD file

Carlos, This time I didn't have time to try to calculate the values from the daily data like I

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Estimating water balance from .SAD file

Carlos, This time I didn't have time to try to calculate the values from the daily data like I

Apr 9

Matteo Longo, Luca2

Apr 9

Tree and vineyard simulations - pruning?

Matteo, It has been a while since the last time I simulated trees with EPIC or APEX but I think I can

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Tree and vineyard simulations - pruning?

Matteo, It has been a while since the last time I simulated trees with EPIC or APEX but I think I can

Apr 9

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