diff --git a/src/dynamics/tendencies.jl b/src/dynamics/tendencies.jl
index ce82b181a..5bbc365f1 100644
--- a/src/dynamics/tendencies.jl
+++ b/src/dynamics/tendencies.jl
@@ -85,14 +85,55 @@ end
 """
 $(TYPEDSIGNATURES)
 Set the tendencies in `diagn` to zero."""
-function zero_tendencies!(diagn::DiagnosticVariables)
+function zero_tendencies!(diagn::DiagnosticVariables{NF,Grid,Model}) where {NF,Grid,Model<:Barotropic}
     for layer in diagn.layers
         fill!(layer.tendencies.u_tend_grid,0)
         fill!(layer.tendencies.v_tend_grid,0)
+        fill!(layer.tendencies.vor_tend,0)
+    end
+end
+
+"""
+$(TYPEDSIGNATURES)
+Set the tendencies in `diagn` to zero."""
+function zero_tendencies!(diagn::DiagnosticVariables{NF,Grid,Model}) where {NF,Grid,Model<:ShallowWater}
+    for layer in diagn.layers
+        fill!(layer.tendencies.u_tend_grid,0)
+        fill!(layer.tendencies.v_tend_grid,0)
+        fill!(layer.tendencies.vor_tend,0)
+        fill!(layer.tendencies.div_tend,0)
+    end
+    fill!(diagn.surface.pres_tend_grid,0)
+    fill!(diagn.surface.pres_tend,0)
+end
+
+"""
+$(TYPEDSIGNATURES)
+Set the tendencies in `diagn` to zero."""
+function zero_tendencies!(diagn::DiagnosticVariables{NF,Grid,Model}) where {NF,Grid,Model<:PrimitiveDry}
+    for layer in diagn.layers
+        fill!(layer.tendencies.u_tend_grid,0)
+        fill!(layer.tendencies.v_tend_grid,0)
+        fill!(layer.tendencies.vor_tend,0)
+        fill!(layer.tendencies.div_tend,0)
         fill!(layer.tendencies.temp_tend_grid,0)
-        fill!(layer.tendencies.humid_tend_grid,0)
     end
     fill!(diagn.surface.pres_tend_grid,0)
     fill!(diagn.surface.pres_tend,0)
-    return nothing
 end
+
+"""
+$(TYPEDSIGNATURES)
+Set the tendencies in `diagn` to zero."""
+function zero_tendencies!(diagn::DiagnosticVariables{NF,Grid,Model}) where {NF,Grid,Model<:PrimitiveWet}
+    for layer in diagn.layers
+        fill!(layer.tendencies.u_tend_grid,0)
+        fill!(layer.tendencies.v_tend_grid,0)
+        fill!(layer.tendencies.vor_tend,0)
+        fill!(layer.tendencies.div_tend,0)
+        fill!(layer.tendencies.temp_tend_grid,0)
+        fill!(layer.tendencies.humid_tend_grid,0)
+    end
+    fill!(diagn.surface.pres_tend_grid,0)
+    fill!(diagn.surface.pres_tend,0)
+end
\ No newline at end of file
diff --git a/src/dynamics/tendencies_dynamics.jl b/src/dynamics/tendencies_dynamics.jl
index 04bde2b4b..4e3487aa5 100644
--- a/src/dynamics/tendencies_dynamics.jl
+++ b/src/dynamics/tendencies_dynamics.jl
@@ -402,7 +402,8 @@ function vorticity_flux_curldiv!(   diagn::DiagnosticVariablesLayer,
                                     C::DynamicsConstants,
                                     G::Geometry,
                                     S::SpectralTransform;
-                                    div::Bool=true)    # also calculate div of vor flux?
+                                    div::Bool=true,     # also calculate div of vor flux?
+                                    add::Bool=false)    # accumulate in vor/div tendencies?
     
     (;f_coriolis) = C
     (;coslat⁻¹) = G
@@ -433,8 +434,8 @@ function vorticity_flux_curldiv!(   diagn::DiagnosticVariablesLayer,
     spectral!(u_tend,u_tend_grid,S)
     spectral!(v_tend,v_tend_grid,S)
 
-    curl!(vor_tend,u_tend,v_tend,S)                 # ∂ζ/∂t = ∇×(u_tend,v_tend)
-    div && divergence!(div_tend,u_tend,v_tend,S)    # ∂D/∂t = ∇⋅(u_tend,v_tend)   
+    curl!(vor_tend,u_tend,v_tend,S;add)                 # ∂ζ/∂t = ∇×(u_tend,v_tend)
+    div && divergence!(div_tend,u_tend,v_tend,S;add)    # ∂D/∂t = ∇⋅(u_tend,v_tend)   
     return nothing       
 end
 
@@ -456,7 +457,7 @@ function vorticity_flux!(diagn::DiagnosticVariablesLayer,model::ShallowWater)
     C = model.constants
     G = model.geometry
     S = model.spectral_transform
-    vorticity_flux_curldiv!(diagn,C,G,S,div=true)
+    vorticity_flux_curldiv!(diagn,C,G,S,div=true,add=true)
 end
 
 """
@@ -476,7 +477,7 @@ function vorticity_flux!(diagn::DiagnosticVariablesLayer,model::Barotropic)
     C = model.constants
     G = model.geometry
     S = model.spectral_transform
-    vorticity_flux_curldiv!(diagn,C,G,S,div=false)
+    vorticity_flux_curldiv!(diagn,C,G,S,div=false,add=true)
 end
 
 """
diff --git a/src/output/output.jl b/src/output/output.jl
index 8b8100f15..7f51a6372 100644
--- a/src/output/output.jl
+++ b/src/output/output.jl
@@ -131,10 +131,10 @@ function OutputWriter(
 end
 
 # default variables to output by model
-default_output_vars(::Type{<:Barotropic}) = [:vor,:u]
-default_output_vars(::Type{<:ShallowWater}) = [:vor,:u]
-default_output_vars(::Type{<:PrimitiveDry}) = [:vor,:u,:temp,:pres]
-default_output_vars(::Type{<:PrimitiveWet}) = [:vor,:u,:temp,:humid,:pres,:precip_cond,:precip_conv]
+default_output_vars(::Type{<:Barotropic}) = [:vor,:u,:v]
+default_output_vars(::Type{<:ShallowWater}) = [:vor,:u,:v]
+default_output_vars(::Type{<:PrimitiveDry}) = [:vor,:u,:v,:temp,:pres]
+default_output_vars(::Type{<:PrimitiveWet}) = [:vor,:u,:v,:temp,:humid,:pres,:precip_cond,:precip_conv]
 
 # print all fields with type <: Number
 function Base.show(io::IO,O::AbstractOutputWriter)
diff --git a/src/utility_functions.jl b/src/utility_functions.jl
index e65a0b9af..3480b76ae 100644
--- a/src/utility_functions.jl
+++ b/src/utility_functions.jl
@@ -82,7 +82,7 @@ function print_fields(io::IO,A,keys;arrays::Bool=false)
     filtered = n < length(keys)
     for (i,key) in enumerate(keys_filtered)
         last = (i == n) & ~filtered
-        key = keys[i]
+        key = keys_filtered[i]
         val = getfield(A,key)
         ~last ? println(io,"├ $key::$(typeof(val)) = $val") :
                 print(io,  "└ $key::$(typeof(val)) = $val")