From 0a073b216a4fcb0f2db78c2481bb800c778bb4db Mon Sep 17 00:00:00 2001
From: AlexisRenchon <a.renchon@gmail.com>
Date: Tue, 20 Aug 2024 14:49:06 -0700
Subject: [PATCH] WIP

---
 src/diagnostics/land_compute_methods.jl | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/diagnostics/land_compute_methods.jl b/src/diagnostics/land_compute_methods.jl
index 951284c063..cf398f5ce8 100644
--- a/src/diagnostics/land_compute_methods.jl
+++ b/src/diagnostics/land_compute_methods.jl
@@ -139,7 +139,20 @@ end
 @diagnostic_compute "vapor_flux" SoilCanopyModel p.soil.turbulent_fluxes.vapor_flux
 
 # Soil - SoilCO2
-@diagnostic_compute "heterotrophic_respiration" SoilCanopyModel (p.soilco2.top_bc*83.26) # convert from kg C to mol CO2
+function compute_heterotrophic_respiration!(
+    out,
+    Y,
+    p,
+    t,
+    land_model::SoilCanopyModel{FT},
+) where {FT}
+    if isnothing(out)
+        return p.soilco2.top_bc .* FT(83.26)
+    else
+        out .= p.soilco2.top_bc .* FT(83.26)
+    end
+end # Convert from kg C to mol CO2
+
 @diagnostic_compute "soilco2_diffusivity" SoilCanopyModel p.soilco2.D
 @diagnostic_compute "soilco2_source_microbe" SoilCanopyModel p.soilco2.Sm