# WAQTEL / AED2 **URL:** https://opentelemac.org/forum/c/system-modules/waqtel-aed2/25.md [Latest](https://opentelemac.org/forum/latest.md) · [Categories](https://opentelemac.org/forum/categories.md) · [Tags](https://opentelemac.org/forum/tags.md) --- ## [About the WAQTEL / AED2 category](https://opentelemac.org/forum/t/about-the-waqtel-aed2-category/27)
**Author:** [@system](https://opentelemac.org/forum/u/system)\ **Replies:** 0\ **Last updated:** [October 20, 2026, 1:39pm UTC](https://opentelemac.org/forum/t/about-the-waqtel-aed2-category/27 "2026-10-20T13:39:51Z")
Water Quality processes --- ## [aed water heating](https://opentelemac.org/forum/t/aed-water-heating/8153)
**Author:** [@user\_15804](https://opentelemac.org/forum/u/user_15804)\ **Replies:** 5\ **Last updated:** [August 13, 2026, 5:47am UTC](https://opentelemac.org/forum/t/aed-water-heating/8153 "2026-08-13T05:47:16Z")
Hi, I’m running \[name removed\] coupled with AED v1.2 + salinity and temperature. I’ve disabled any atmospheric exchange, but for some reason the water temperature keeps increasing at a constant rate during the simulat… --- ## [TELEMAC-3D libaed2 v1.3.0 build - carbonate solver](https://opentelemac.org/forum/t/telemac-3d-libaed2-v1-3-0-build-carbonate-solver/8148)
**Author:** [@user\_18916](https://opentelemac.org/forum/u/user_18916)\ **Replies:** 1\ **Last updated:** [July 2, 2026, 1:25pm UTC](https://opentelemac.org/forum/t/telemac-3d-libaed2-v1-3-0-build-carbonate-solver/8148 "2026-07-02T13:25:23Z")
Hello, I’m coupling TELEMAC-3D (v9.1, gfortran 11.3.0) with AED2 for an estuary biogeochemistry model. I need the carbonate equilibrium solver (aed2\_equilibrate\_carbon), which is a non-functional stub in the shipped v1.… --- ## [aed2\_carbon](https://opentelemac.org/forum/t/aed2-carbon/7797)
**Author:** [@user\_17573](https://opentelemac.org/forum/u/user_17573)\ **Replies:** 3\ **Last updated:** [June 29, 2026, 11:00pm UTC](https://opentelemac.org/forum/t/aed2-carbon/7797 "2026-06-29T23:00:43Z")
Hello I’m coupling TELEMAC3D with aed2 and I want to output the CO2 flux at the air/water interface (in regards with some water input rich in dissolved organic carbon (DIC) in my study field). I succeeded in output var… --- ## [\[WAQTEL/T3D\] O2 sources applied to dry columns](https://opentelemac.org/forum/t/waqtel-t3d-o2-sources-applied-to-dry-columns/8146)
**Author:** [@user\_18545](https://opentelemac.org/forum/u/user_18545)\ **Replies:** 5\ **Last updated:** [June 17, 2026, 3:34pm UTC](https://opentelemac.org/forum/t/waqtel-t3d-o2-sources-applied-to-dry-columns/8146 "2026-06-17T15:34:54Z")
Hello, I would like to report a possible issue in sources/waqtel/calcs3d\_o2.f in TELEMAC/WAQTEL 9.1.1. In a TELEMAC-3D + WAQTEL O2 case with tidal flats, I found that O2 source terms are applied to dry 3D columns. This… --- ## [error in initialization](https://opentelemac.org/forum/t/error-in-initialization/8145)
**Author:** [@user\_15804](https://opentelemac.org/forum/u/user_15804)\ **Replies:** 1\ **Last updated:** [June 8, 2026, 10:29am UTC](https://opentelemac.org/forum/t/error-in-initialization/8145 "2026-06-08T10:29:32Z")
Hi, I’m trying to run a t3d+waq (eutro) case, and I get this error: CPSTVC : FORBIDDEN CASE FOR X AND Y: X=RAINFA SIZE : 1301 Y=PLUIE MAXIMUM SIZE: 1 PLANTE: PROGRAM STOPPED AFTER AN ERROR It works… --- ## [WAQTEL thermal module with two tracers (salinty, temperature)](https://opentelemac.org/forum/t/waqtel-thermal-module-with-two-tracers-salinty-temperature/8134)
**Author:** [@user\_18951](https://opentelemac.org/forum/u/user_18951)\ **Replies:** 3\ **Last updated:** [May 6, 2026, 5:12pm UTC](https://opentelemac.org/forum/t/waqtel-thermal-module-with-two-tracers-salinty-temperature/8134 "2026-05-06T17:12:28Z")
Hello, I am attempting to couple the WAQTEL thermal module to my model, but I have only managed to add one tracer (temperature), whereas I need two (temperature and salinity). First, I would like to know if it is possi… --- ## [Phase lag of simulated stream temperatures in TELEMAC-2D + WAQTEL](https://opentelemac.org/forum/t/phase-lag-of-simulated-stream-temperatures-in-telemac-2d-waqtel/8046)
**Author:** [@user\_17496](https://opentelemac.org/forum/u/user_17496)\ **Replies:** 4\ **Last updated:** [April 26, 2026, 9:49am UTC](https://opentelemac.org/forum/t/phase-lag-of-simulated-stream-temperatures-in-telemac-2d-waqtel/8046 "2026-04-26T09:49:32Z")
Context We aim to simulate the spatio-temporal stream temperature of a river reach using TELEMAC-2D coupled with \[name removed\] (THERMIC). The hydraulics are calibrated. Solar radiation was reduced to account for site-s… --- ## [WAQTEL module (heat exchange) in TELEMAC V8P5R0](https://opentelemac.org/forum/t/waqtel-module-heat-exchange-in-telemac-v8p5r0/8127)
**Author:** [@user\_18951](https://opentelemac.org/forum/u/user_18951)\ **Replies:** 1\ **Last updated:** [April 26, 2026, 9:19am UTC](https://opentelemac.org/forum/t/waqtel-module-heat-exchange-in-telemac-v8p5r0/8127 "2026-04-26T09:19:02Z")
Hello, I am working in a hypersaline environment and need to incorporate evaporation into my 3D model. I am attempting to use the WAQTEL module, but it hasn’t worked. I have followed the example file and adapted the CAS… --- ## [waqtel telemac3d + salinity+temp](https://opentelemac.org/forum/t/waqtel-telemac3d-salinity-temp/8067)
**Author:** [@user\_15804](https://opentelemac.org/forum/u/user_15804)\ **Replies:** 3\ **Last updated:** [April 26, 2026, 8:54am UTC](https://opentelemac.org/forum/t/waqtel-telemac3d-salinity-temp/8067 "2026-04-26T08:54:15Z")
hi, is it possible to couple t3d with the Eutro module and also consider salinity and temperature effects on density? i’ve tried to add salinity and temperature to the simpled eutro exampled case, and failed. GRACJG (… --- ## [TELEMAC3D + WAQTEL - source file for suspende matters](https://opentelemac.org/forum/t/telemac3d-waqtel-source-file-for-suspende-matters/8068)
**Author:** [@user\_1054](https://opentelemac.org/forum/u/user_1054)\ **Replies:** 4\ **Last updated:** [October 19, 2025, 7:42pm UTC](https://opentelemac.org/forum/t/telemac3d-waqtel-source-file-for-suspende-matters/8068 "2025-10-19T19:42:57Z")
Hello, I am using TELEMAC3D coupled with WAQTEL to simulate suspended matter evolution over time. Supended matter is prescribed in a source file (flowrate and concentrations). Either in V8P5R0 nor V9, I get the same er… --- ## [Negative DO values in zones with shallow water area](https://opentelemac.org/forum/t/negative-do-values-in-zones-with-shallow-water-area/8010)
**Author:** [@user\_18857](https://opentelemac.org/forum/u/user_18857)\ **Replies:** 1\ **Last updated:** [October 19, 2025, 6:16pm UTC](https://opentelemac.org/forum/t/negative-do-values-in-zones-with-shallow-water-area/8010 "2025-10-19T18:16:34Z")
Hi \[name removed\], I’m using TELEMAC-2D coupled with WAQTEL to simulate DO (dissolved oxygen) distribution in a wetland with vegetation. The model includes shallow zones that experience frequent drying and wetting due… --- ## [Waqtel formulations. Thermic 2D](https://opentelemac.org/forum/t/waqtel-formulations-thermic-2d/8048)
**Author:** [@user\_9315](https://opentelemac.org/forum/u/user_9315)\ **Replies:** 0\ **Last updated:** [August 27, 2025, 4:41pm UTC](https://opentelemac.org/forum/t/waqtel-formulations-thermic-2d/8048 "2025-08-27T16:41:49Z")
Hello, I have been working with WAQTEL, specifically with the thermic module coupled to a 2D hydrodynamic model. In this context, I have conducted some evaluations of the formulations by integrating different data sourc… --- ## [run waqtel alone with t3d result](https://opentelemac.org/forum/t/run-waqtel-alone-with-t3d-result/7766)
**Author:** [@user\_11650](https://opentelemac.org/forum/u/user_11650)\ **Replies:** 1\ **Last updated:** [August 25, 2024, 6:01pm UTC](https://opentelemac.org/forum/t/run-waqtel-alone-with-t3d-result/7766 "2024-08-25T18:01:01Z")
Hi \[name removed\], Can WAQTEL be run alone with T3D or T2D simulation result without coupling T3D/T2D? \[name removed\] --- ## [Model error when running telemac3d coupling aed2](https://opentelemac.org/forum/t/model-error-when-running-telemac3d-coupling-aed2/7609)
**Author:** [@user\_18200](https://opentelemac.org/forum/u/user_18200)\ **Replies:** 5\ **Last updated:** [April 29, 2024, 6:22am UTC](https://opentelemac.org/forum/t/model-error-when-running-telemac3d-coupling-aed2/7609 "2024-04-29T06:22:04Z")
Hello \[name removed\] I’m trying to use Telemac3D in combination with AED2. The cas file I use is similar to the waq3d\_aed2\_flume example. With 02 open boundaries including 01 Q boundary and 01 SL boundary. However, desp… --- ## [Simulate BOD in Waqtel](https://opentelemac.org/forum/t/simulate-bod-in-waqtel/7524)
**Author:** [@user\_17660](https://opentelemac.org/forum/u/user_17660)\ **Replies:** 6\ **Last updated:** [March 8, 2024, 1:34pm UTC](https://opentelemac.org/forum/t/simulate-bod-in-waqtel/7524 "2024-03-08T13:34:18Z")
Hello \[name removed\]+Waqtel users; I want to know if Telemac2d allows simulation of BOD parameters? If not, what can I do with open source \[name removed\] to simulate this value? Thank you very much for your support. \[n… --- ## [NUMBER OF LETTERS PER WORD of tracers](https://opentelemac.org/forum/t/number-of-letters-per-word-of-tracers/7566)
**Author:** [@user\_17573](https://opentelemac.org/forum/u/user_17573)\ **Replies:** 7\ **Last updated:** [March 2, 2024, 8:19am UTC](https://opentelemac.org/forum/t/number-of-letters-per-word-of-tracers/7566 "2024-03-02T08:19:58Z")
Hello, I’m using aed2 examples (waq3d\_aed2\_flume) and I wanted to output other tracers than those initialy proposed (\[name removed\] to TA16). But when I want to output for example \[name removed\] and TA19, I have this er… --- ## [SOURCES in telemac3d and AED2 coupling](https://opentelemac.org/forum/t/sources-in-telemac3d-and-aed2-coupling/7506)
**Author:** [@user\_17573](https://opentelemac.org/forum/u/user_17573)\ **Replies:** 3\ **Last updated:** [February 7, 2024, 4:23pm UTC](https://opentelemac.org/forum/t/sources-in-telemac3d-and-aed2-coupling/7506 "2024-02-07T16:23:26Z")
Hello, In parameter and configuration of aed steering file ( and aed nml), it is possible to overwrite initial parameter concentrations (ex dic\_initial in aed\_carbon) by GLM or TFV IC. In my case, I would like to overwr… --- ## [WAQTEL Thermic and Telemac3D coupling](https://opentelemac.org/forum/t/waqtel-thermic-and-telemac3d-coupling/7533)
**Author:** [@user\_8462](https://opentelemac.org/forum/u/user_8462)\ **Replies:** 1\ **Last updated:** [February 7, 2024, 2:17pm UTC](https://opentelemac.org/forum/t/waqtel-thermic-and-telemac3d-coupling/7533 "2024-02-07T14:17:02Z")
Good afternoon, We are currently developing a 3D estuary model which, we are attempting to couple to WAQTEL thermic and ultimately Eutro. The 3D model with temperature and salinity runs fine and the results look reasona… --- ## [WAQTEL,Temp increasing more than 10°C.](https://opentelemac.org/forum/t/waqtel-temp-increasing-more-than-10-c/6253)
**Author:** [@user\_12249](https://opentelemac.org/forum/u/user_12249)\ **Replies:** 5\ **Last updated:** [September 25, 2023, 10:25am UTC](https://opentelemac.org/forum/t/waqtel-temp-increasing-more-than-10-c/6253 "2023-09-25T10:25:32Z")
Hello \[name removed\] I am simulating a 2d river, the river has more or less 38 km in length, water depth between 6 and 3.4m, velocities between 3 and 1.5m/s. The hydrodynamics was calibrated successfully, for unsteady … --- ## [Couple Waqtel](https://opentelemac.org/forum/t/couple-waqtel/7382)
**Author:** [@user\_17644](https://opentelemac.org/forum/u/user_17644)\ **Replies:** 1\ **Last updated:** [September 11, 2023, 3:23pm UTC](https://opentelemac.org/forum/t/couple-waqtel/7382 "2023-09-11T15:23:10Z")
Bonjour， J’ai une question sur le couplage de plusieurs modules de Waqtel. Par exemple, je veux utiliser le module de “\[name removed\]” et “Eutro” en meme temps.Pour les valeurs initiales de \[name removed\], je dois uti… --- ## [Units in atmospheric data file. In particular CLDC.](https://opentelemac.org/forum/t/units-in-atmospheric-data-file-in-particular-cldc/7172)
**Author:** [@user\_17051](https://opentelemac.org/forum/u/user_17051)\ **Replies:** 4\ **Last updated:** [March 2, 2023, 12:39pm UTC](https://opentelemac.org/forum/t/units-in-atmospheric-data-file-in-particular-cldc/7172 "2023-03-02T12:39:04Z")
Hi \[name removed\], In the ASCII ATMOSPHERIC DATA FILE, the latest Telemac release allows to add a selection of columns, including the units. For example: T WINDS WINDD TAIR PATM HREL CLD… --- ## [Atmospheric Radiation Formula](https://opentelemac.org/forum/t/atmospheric-radiation-formula/7022)
**Author:** [@user\_16900](https://opentelemac.org/forum/u/user_16900)\ **Replies:** 1\ **Last updated:** [October 25, 2022, 1:55pm UTC](https://opentelemac.org/forum/t/atmospheric-radiation-formula/7022 "2022-10-25T13:55:15Z")
Does someone knows why the default formula for computing atmospheric radiation is not the one by Yajima and \[name removed\] (2014)? Does this formula is more accurate? I didn’t found any information about how better thi… --- ## [Bed Sediment Advected/Diffused in MICROPOL v8p1r0](https://opentelemac.org/forum/t/bed-sediment-advected-diffused-in-micropol-v8p1r0/6850)
**Author:** [@user\_13543](https://opentelemac.org/forum/u/user_13543)\ **Replies:** 20\ **Last updated:** [September 21, 2022, 11:29am UTC](https://opentelemac.org/forum/t/bed-sediment-advected-diffused-in-micropol-v8p1r0/6850 "2022-09-21T11:29:56Z")
Hello \[name removed\], I am currently experimenting with the micropol module using t2d’s gouttedo example, because i desire to make some changes to it to adapt it to my case. I started a simulation with erotion rate = 0… --- ## [Additional sediment classes](https://opentelemac.org/forum/t/additional-sediment-classes/6938)
**Author:** [@user\_15079](https://opentelemac.org/forum/u/user_15079)\ **Replies:** 5\ **Last updated:** [August 24, 2022, 5:14pm UTC](https://opentelemac.org/forum/t/additional-sediment-classes/6938 "2022-08-24T17:14:31Z")
I am trying to adapt the micropol module of waqtel. I am fairly new to working with fortran files, therefore any guidance is welcome. In micropol there is one suspended sediment and one deposited sediment class. However … --- ## [WAQTEL](https://opentelemac.org/forum/t/waqtel/6834)
**Author:** [@user\_15644](https://opentelemac.org/forum/u/user_15644)\ **Replies:** 17\ **Last updated:** [January 31, 2022, 4:58pm UTC](https://opentelemac.org/forum/t/waqtel/6834 "2022-01-31T16:58:29Z")
Dear \[name removed\] I am trying to couple Telemac2d with \[name removed\]. My water flow simulation with Tel2d had 7000000 time steps and took 13 hours on HPC. Now I have coupled with \[name removed\] and the runtime is mor… --- ## [AED2.0](https://opentelemac.org/forum/t/aed2-0/6855)
**Author:** [@user\_15644](https://opentelemac.org/forum/u/user_15644)\ **Replies:** 8\ **Last updated:** [December 8, 2021, 2:01pm UTC](https://opentelemac.org/forum/t/aed2-0/6855 "2021-12-08T14:01:51Z")
Dear \[name removed\] I am coupling Telemac2d with AED 2.0 to predict water quality parameters in a coastal area. I have no problem with serial mode but in parallel mode I receive this error: Currently Loaded Modulefiles… --- ## [Problem coupling 2 modules of WAQTEL with TELEMAC-3D (THERMIC and EUTRO)](https://opentelemac.org/forum/t/problem-coupling-2-modules-of-waqtel-with-telemac-3d-thermic-and-eutro/6835)
**Author:** [@user\_9988](https://opentelemac.org/forum/u/user_9988)\ **Replies:** 3\ **Last updated:** [April 21, 2021, 8:09am UTC](https://opentelemac.org/forum/t/problem-coupling-2-modules-of-waqtel-with-telemac-3d-thermic-and-eutro/6835 "2021-04-21T08:09:29Z")
Hello \[name removed\], I allowed myself to continue this post as another issue occurred. First I ran the T3D+THERMIC to calibrate the related coefficients and the modeled temperature matched the field data, but after the… --- ## [Issue about the formula to calculate light effect on algae growth](https://opentelemac.org/forum/t/issue-about-the-formula-to-calculate-light-effect-on-algae-growth/6854)
**Author:** [@user\_9988](https://opentelemac.org/forum/u/user_9988)\ **Replies:** 1\ **Last updated:** [April 20, 2021, 3:02pm UTC](https://opentelemac.org/forum/t/issue-about-the-formula-to-calculate-light-effect-on-algae-growth/6854 "2021-04-20T15:02:41Z")
Hello, According to the source code of waqtel/ray\_effect.f and WAQTEL theory guide, the light effect on algae growth was calculated by Smith formula shown in the Figure attached, but it is averaged over the depth for no… --- ## [Water quality simulations](https://opentelemac.org/forum/t/water-quality-simulations/6856)
**Author:** [@user\_13819](https://opentelemac.org/forum/u/user_13819)\ **Replies:** 1\ **Last updated:** [April 13, 2021, 10:48am UTC](https://opentelemac.org/forum/t/water-quality-simulations/6856 "2021-04-13T10:48:51Z")
Hello \[name removed\], I want to ask if there are cases where DO (Dissolved Oxygen) and Eutro (Eutrophication) modules for water quality simulations have been tested that I can refer to them in a journal paper. Thank y… [Next page](https://opentelemac.org/forum/c/system-modules/waqtel-aed2/25.md?page=1)