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Great to read Chris, some images a recall from lectures yo have been giving over the decades, mxed with newer thoughts and observations.

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Thanks Steve. Graham’s work is great for supplying figures for what we’ve known for a long time. More to come, at some point.

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Very interesting. When I've seen wispy clouds over forest like that I've always thought it was clouds clearing away that had been 'caught' somehow in the woodland. It reminds me of when I was 15 and I went camping for the very first time with the Guides on a hill near Rowen. We had to sleep with our tent flaps open and I have an abiding memory of waking up and looking straight along the Conwy Valley and seeing little wisps of cloud 'caught' in the woods above Dolgarrog. On a side note I also looked down and saw a little lane snaking up a hill opposite little thinking that I'd end up living up that hill many years later! It's no longer possible to see the lane from where I camped because there are too many trees.

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Thanks for that Doughty Louise. Your side note is great- how strange the way things can turn out. Its especially interesting to me because I had a rather similar experience after moving up to Dolgellau from Aberystwyth. Every time I crossed the bridge over the Afon Mawddach at Llanelltyd, my eyes would be drawn to the north and a view of the receding planes of hills, one behind the other and, at that time, all completely clothed in trees. Over several years, a very strong feeling grew, that one day, I would live up there and through a series of wholly unexpected coincidences, it did indeed turn out that way. Life, eh?

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Super interesting. We live very close to the Otways rain forest where we can see exactly the same micro climate operating with high local rainfall and evaporation happening underneath the canopy of the bigger trees. The plant species are hgely different however with large tree ferns, native conifers and gums somtimes giving the whole forest a unique eucalypt smell. This foest continues on to the east of Melbourne in the Campaspe ranges. Thankfully theyve stopped chopping it down to make dairy farms

Btw, maybe your professer conducted an observation not an experiment. An experiment would involve manipulating one independent variable. For example, why not drop some silver chloride pellets out of a plane over Dubai when its a cloudy day. What could possibly go wrong.😀

Do please keep writing more of these informative articles.

Btw, the skinny woman on the bridge looks familiar

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Thanks Andrew. Otways sound fantastic- glad to hear its won out over dairy farms, for now anyway.

Yes, much of Graham's work was detailed observation followed by thoughtful analysis of data but he also carried out several experiements as well, whcih I haven't got to yet, where he makes more obvious interventions and then measures the consequences. One of which we did at our place, involving cutting a face into a slope and measuring the through-flow of water at different depths. I'll get to it eventaully as, again, its fascinating stuff. I'm afraid he didn't manipulate a variable using anything dodgy- at least I don't think he did, though thinking about it now, that 2001 flash flood was a bit extreme...I wonder...no, surely not!

Yes, the skinny woman on the bridge should indeed look familiar!

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