I haven't been 20 foot above a charred body so I can't vouch for what that would smell like in the rain,
However I would guess that it depends on the conditions beforehand and the ground that you're on.
For example if it has been dry for a while - have you never stuck your head out the window and smelt the rich organic, earthy waft that a rainfall can bring in summer? All those volatiles and minerals that had been locked up in dry dirt and dust now mixing with water vapour. But if the ground was already wet beforehand, then that smell will be background already.
I assume that your logic is that the rain is putting out fires and hot bits of flesh and stuff and this smell will decline. Which I kinda can see.
So I guess I'm saying that I imagine that rain modifies the original burning and smoky smell, perhaps de-emphasising it (and over time will put it out completely I guess) but will replace it with other smell 'tones'. Unless you are in winter, a sterile environment of some sort or it's a torrential rainstorm that definitely can wash away smells on the ground.
Not a great answer, I'm afraid, sort of 'it depends'.
However I would guess that it depends on the conditions beforehand and the ground that you're on.
For example if it has been dry for a while - have you never stuck your head out the window and smelt the rich organic, earthy waft that a rainfall can bring in summer? All those volatiles and minerals that had been locked up in dry dirt and dust now mixing with water vapour. But if the ground was already wet beforehand, then that smell will be background already.
I assume that your logic is that the rain is putting out fires and hot bits of flesh and stuff and this smell will decline. Which I kinda can see.
So I guess I'm saying that I imagine that rain modifies the original burning and smoky smell, perhaps de-emphasising it (and over time will put it out completely I guess) but will replace it with other smell 'tones'. Unless you are in winter, a sterile environment of some sort or it's a torrential rainstorm that definitely can wash away smells on the ground.
Not a great answer, I'm afraid, sort of 'it depends'.