Fixing kernelloop tutorial kernel to not use dt=timedelta

erikvansebille · erikvansebille · commit d33b6807c2df · 2025-11-27T08:43:11.000+01:00
diff --git a/docs/user_guide/examples/explanation_kernelloop.md b/docs/user_guide/examples/explanation_kernelloop.md
@@ -78,12 +78,11 @@ Now we define a wind kernel that uses a forward Euler method to apply the wind f
 
 ```{code-cell}
 def wind_kernel(particles, fieldset):
-    dt_float = particles.dt / np.timedelta64(1, 's')
     particles.dlon += (
-        fieldset.UWind[particles] * dt_float
+        fieldset.UWind[particles] * particles.dt
     )
     particles.dlat += (
-        fieldset.VWind[particles] * dt_float
+        fieldset.VWind[particles] * particles.dt
     )
 ```
 

Original file line number	Diff line number	Diff line change
`@@ -78,12 +78,11 @@ Now we define a wind kernel that uses a forward Euler method to apply the wind f`
`78`	`78`
`79`	`79`	```{code-cell}
`80`	`80`	`def wind_kernel(particles, fieldset):`
`81`		`- dt_float = particles.dt / np.timedelta64(1, 's')`
`82`	`81`	`particles.dlon += (`
`83`		`- fieldset.UWind[particles] * dt_float`
	`82`	`+ fieldset.UWind[particles] * particles.dt`
`84`	`83`	`)`
`85`	`84`	`particles.dlat += (`
`86`		`- fieldset.VWind[particles] * dt_float`
	`85`	`+ fieldset.VWind[particles] * particles.dt`
`87`	`86`	`)`
`88`	`87`	```
`89`	`88`