NikonGear'23

Images => Nature, Flora, Fauna & Landscapes => Topic started by: David Paterson on January 29, 2016, 15:11:23

Title: There's a river in there somewhere . . .
Post by: David Paterson on January 29, 2016, 15:11:23
Strong weather is back with us - flooding almost the highest I have seen here, and storm-force winds - our local automatic weather station recorded a gust of 171kph (107mph) at 9am today. When walking our dog, Sally, when the gusts came it was difficult to stay on my feet, and as we were almost home she was struck by a flying branch - not really hurt, but now very nervous and afraid, and I think she blames me, unfortunately.
Title: Re: There's a river in there somewhere . . .
Post by: Akira on January 29, 2016, 15:17:07
Hope that Sally is all right and won't curse the fact that you take some picures nevertheless!

I'd rather wonder about the condition of the spot on which you were standing when you took the iamge.
Title: Re: There's a river in there somewhere . . .
Post by: Thomas Stellwag on January 29, 2016, 15:55:17
these clouds seem to have some water reserve for us in may :-)
Title: Re: There's a river in there somewhere . . .
Post by: Erik Lund on January 29, 2016, 17:03:11
Wow, please let this pass so we can get some dry land for our workshop ;)

Stay safe!
Title: Re: There's a river in there somewhere . . .
Post by: David Paterson on January 29, 2016, 18:43:47
Thank you for your comments, Akira, Thomas and Erik.

Akira - unfortunately I am not yet able to walk on water, but I'm waiting for the day to arrive. I was standing on a former railway bridge which crosses the much-swollen River Lochay. The water-level is about 2m above average, and 3m above a typical (summer) low point.

In Scotland, statistically, May/June and September are the driest months, and the months with the most "good" weather. But statistics relate to the past, and atmospheric warming is happening now . . . . this is why we are going to start each day in May witha 30-minute Quechua Indian rain-dance - performed backwards, of course, since we want it NOT to rain, and the dance is normally used to BRING rain.   ::) ::)

I sometimes like to do a little mental arithmetic, and this was this morning's exercise - in normal times, this river is about 60m wide, with an average depth of 2m, and it flows at about 1.5m/sec. Since 1 cubic metre weighs one metric ton, the weight of water flowing down that river to the sea is -

60 x 2 x 1.5 (tons per second) x 60 (t/min) x 60 (t/hour) x 24 (t/day) x 365 (tons per year) = nearly 500 million metric tons. Ain't that a surprise? Even if my initial assumptions are wrong by a factor of three, that still means that nearly 200 million tons of water flow down that river every year.

Title: Re: There's a river in there somewhere . . .
Post by: Seapy on January 29, 2016, 20:32:29
And thats just one small river David!

How many tons a day at the moment then?
Title: Re: There's a river in there somewhere . . .
Post by: David Paterson on January 29, 2016, 20:51:36
And thats just one small river David!

How many tons a day at the moment then?

Exactly!

3 times the width, 3 times the depth and at least 3 times the flow-rate - say 30 times the normal volume. That is equivalent to an annualised tonnage close to 1.8 billion tons.
Title: Re: There's a river in there somewhere . . .
Post by: Seapy on January 29, 2016, 21:36:50
Fortunately it won't run at that rate all year!  It just puts it into perspective though.

No doubt at some times in the Earths distant past that may have been normal though, I still find it hard to accept that water, frost and ice sculpted the remains of the volcanos to what we have today.
Title: Re: There's a river in there somewhere . . .
Post by: Thomas G on January 29, 2016, 23:17:23
I hope the water level doesn't increase more.

Great nature shot, the light on the trees and the shimmering reflections on the water.
Gives a very lifely stream.
I like the little free room left of the middle tree,- it allows the spectators eye wander to to background.
Title: Re: There's a river in there somewhere . . .
Post by: Akira on January 30, 2016, 05:59:22
Dave, I'm relieved to know that you seem to have come home "dry" this time.  :D

The amount of the running water is simply overwhelming...
Title: Re: There's a river in there somewhere . . .
Post by: David Paterson on January 30, 2016, 11:17:29
Dave, I'm relieved to know that you seem to have come home "dry" this time.  :D
The amount of the running water is simply overwhelming...

Just last week I fell again, full-length into near-freezing water - luckily not very deep. I was crossing a stream, much bigger than normal, put my foot on a large stone, the stone rolled . . . I understood immediately how people die in minutes if immersed in really cold water - for example, the sea in winter. My car was only a couple of minutes' walk from where I fell but by the time I got to it, it was becoming difficult to walk and I could literally feel my body shutting down. Scary.

My cameras were ok though!
Title: Re: There's a river in there somewhere . . .
Post by: Erik Lund on February 01, 2016, 09:41:51
Wow, so happy you got out of there again!
Title: Re: There's a river in there somewhere . . .
Post by: Bjørn Rørslett on February 01, 2016, 10:49:35
Dave, my sympathies. Cold water is unpleasant. But at least you didn't have to crash through the ice first :)

Good for you the cameras survived.
Title: Re: There's a river in there somewhere . . .
Post by: Jakov Minić on February 01, 2016, 11:37:27
Good to hear everything ended up well, David!
Take care!
Title: Re: There's a river in there somewhere . . .
Post by: Akira on February 01, 2016, 12:40:54
Just last week I fell again, full-length into near-freezing water - luckily not very deep. I was crossing a stream, much bigger than normal, put my foot on a large stone, the stone rolled . . . I understood immediately how people die in minutes if immersed in really cold water - for example, the sea in winter. My car was only a couple of minutes' walk from where I fell but by the time I got to it, it was becoming difficult to walk and I could literally feel my body shutting down. Scary.

My cameras were ok though!

Oh, Dave, I'm glad your CAR was ok enough to warm you up again...
Title: Re: There's a river in there somewhere . . .
Post by: Peter Connan on February 01, 2016, 18:56:08
Wow, that's a serious gust!

Despite the damage they cause I always find floods beautiful and fascinating.
Title: Re: There's a river in there somewhere . . .
Post by: David Paterson on February 01, 2016, 19:19:25
Thanks for all your concern.

It was a piece of stupidity, as usual. The stone I stepped on was too far away and only just visible, well below the surface. As I stepped on it, I was thinking "this is probably a stupid thing to do . . . . " - I was right.

Cameras were in a small Lowepro backpack which went completely under the surface. Not a drop of water entered the main compartment.
Title: Re: There's a river in there somewhere . . .
Post by: Frank Fremerey on February 01, 2016, 19:22:14
Strong geometry and colors. Stark light. Hope Sally recovers from the shock.
Title: Re: There's a river in there somewhere . . .
Post by: David Paterson on February 01, 2016, 19:26:47
Wow, that's a serious gust!
Despite the damage they cause I always find floods beautiful and fascinating.

Since then we've had a gust of 173kph and numerous ones between 140 and 165. In between the floods and the wind-storm we had this -
Title: Re: There's a river in there somewhere . . .
Post by: Peter Connan on February 01, 2016, 19:45:20
While it is undeniably beautiful, I am very glad I don't live in Scotland.
Title: Re: There's a river in there somewhere . . .
Post by: Seapy on February 01, 2016, 20:10:39
You better batten the hatches down David.  The forecast is for even stronger winds, it's pretty hectic here, hate to think what you are getting.

How do you capture wind in a photograph?  :-\
Title: Re: There's a river in there somewhere . . .
Post by: Jakov Minić on February 01, 2016, 20:47:12
I share my concerns about global warming and the abnormal winds we are experiencing this winter.
I was almost blown off my bike today at gusts of 7 Beaufort... sick of it really... it just doesn't stop...
Title: Re: There's a river in there somewhere . . .
Post by: David Paterson on February 01, 2016, 21:19:03
Thanks for your comments, Peter, Seapy and Jakov.

I share my concerns about global warming and the abnormal winds we are experiencing this winter.
I was almost blown off my bike today at gusts of 7 Beaufort... sick of it really... it just doesn't stop...

Jakov - I know exactly what you mean. I came back from Japan exactly 2 months ago. In those two months we have had perhaps 12 hours of sunshine, not more. The rain and wind just never seem to stop. I get out with the cameras nearly every day, in any conditions, but it's becoming tiring, exhausting, just coping with the weather.

Luckily, it's quite a long time until May.   :-\
Title: Re: There's a river in there somewhere . . .
Post by: Thomas G on February 02, 2016, 00:07:09
You better batten the hatches down David.  The forecast is for even stronger winds, it's pretty hectic here, hate to think what you are getting.
How do you capture wind in a photograph?  :-\
Same question hit me on saturday.
First get the cam saved and fixed on a solid tripod in cover.
Try shooting moving things, longer times perhaps or multiple eposure or both or multi exposure with varied times.
Pan with moving things.
If available add drame like dark clouds (if moving, they make up for a shot of themselves).
I just would give it a try, risk a few shots, I hope it helps.

The example is cropped from a shot I like as a result.


Title: Re: There's a river in there somewhere . . .
Post by: Seapy on February 02, 2016, 00:17:25
Thanks Thomas, I like it!

Right now if I went out I think I would be in the next street in no time flat!  But you give me some ideas...  By the time I get opportunity to try them the wind will have subsided.  ;D
Title: Re: There's a river in there somewhere . . .
Post by: Thomas G on February 02, 2016, 00:34:17
I took took them from inside a window in the house. Wind was not too strong.
Started with shooting through the glass, then, after some tries, opendened the casement, secured it and got my final shots.
Wind was blowing in heavily enough to make sure the room door was safely closed.
Wasn't the weather site, so rain drops and wind were manageable.
Title: Re: There's a river in there somewhere . . .
Post by: Thomas G on February 02, 2016, 00:37:19
Thanks Thomas, I like it!

Right now if I went out I think I would be in the next street in no time flat!  But you give me some ideas...  By the time I get opportunity to try them the wind will have subsided.  ;D
Thanks, glad you like it! There's more here (click) (http://nikongear.net/revival/index.php/topic,2411.msg33822.html#msg33822).