What size is this wave face?

> 10 years ago
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GizzieNZ
GizzieNZ
4103 posts
4103 posts
7 May 2010 2:45pm
Presumably while ocean swell size might be 3 or 4 foot obviously the wave face is a bit bigger.....wot do you reckon?

zola
zola
WA
79 posts
WA, 79 posts
7 May 2010 2:59pm
about the same size as the camera mounting!!
doggie
doggie
WA
15849 posts
WA, 15849 posts
7 May 2010 3:00pm
Judging on the size of the surfer about 6ft up the face, hard to tell with the depth of the photo.
OG SUP
OG SUP
VIC
3516 posts
VIC, 3516 posts
7 May 2010 5:07pm
To help you out Kristi is 5'5

Interested to see the answers on this one as its always a point of discussion.

Thats why we use waist, chest, head, over head etc.

Phill
theDoctor
theDoctor
NSW
5786 posts
NSW, 5786 posts
7 May 2010 5:14pm
three foot
Bender
Bender
WA
2236 posts
WA, 2236 posts
7 May 2010 3:15pm
looks like a fun 3-4ft day to me if it was this size consistantly
supbelly
supbelly
WA
384 posts
WA, 384 posts
7 May 2010 3:33pm
THis is something that spins me out also.. How do you get the 3 to 4 foot measurement?? And if a wave is head height and you are 6ft is it a 6ft wave??..
Can any one clarify this for me.. Ive head people say it goes on back face but how does that even work??? We used to surf a wave when i bodyboarding (before i saw the light) that had almost no back face but would be over 6ft front face because is was sucking so hard.. Sure trips me out

Belly
doggie
doggie
WA
15849 posts
WA, 15849 posts
7 May 2010 3:39pm
supbelly said...

THis is something that spins me out also.. How do you get the 3 to 4 foot measurement?? And if a wave is head height and you are 6ft is it a 6ft wave??..
Can any one clarify this for me.. Ive head people say it goes on back face but how does that even work??? We used to surf a wave when i bodyboarding (before i saw the light) that had almost no back face but would be over 6ft front face because is was sucking so hard.. Sure trips me out

Belly


3ft is the Hawawian mesurment and they use the back of the wave, stupid I know.
Its like using the term waterman to decribe yourself
supbelly
supbelly
WA
384 posts
WA, 384 posts
7 May 2010 3:42pm
Haha thats just silly so does that mean when teahupoo is 20ft faces its only 2foot??

I just dont get it..

Belly
cRAZY Canuk
cRAZY Canuk
NSW
2528 posts
NSW, 2528 posts
7 May 2010 6:02pm
doggie said...

supbelly said...

THis is something that spins me out also.. How do you get the 3 to 4 foot measurement?? And if a wave is head height and you are 6ft is it a 6ft wave??..
Can any one clarify this for me.. Ive head people say it goes on back face but how does that even work??? We used to surf a wave when i bodyboarding (before i saw the light) that had almost no back face but would be over 6ft front face because is was sucking so hard.. Sure trips me out

Belly


3ft is the Hawawian mesurment and they use the back of the wave, stupid I know.
Its like using the term waterman to decribe yourself


I though Hawaiians used the wave amplitude for wave measurement? Not sure how you measure the back of a wave.....

My guess a little over 6' one the face so around head high for me at 6'5" - perfect surf conditions
Legion
Legion
WA
2222 posts
WA, 2222 posts
7 May 2010 4:06pm
2-3' depending. Can't really tell if the light shadow is making the wave appear bigger than it is, can't really tell from the angle either where the bottom of the face is. At any rate, no way I'd be calling that 4'.
doggie
doggie
WA
15849 posts
WA, 15849 posts
7 May 2010 4:13pm
cRAZY Canuk said...

doggie said...

supbelly said...

THis is something that spins me out also.. How do you get the 3 to 4 foot measurement?? And if a wave is head height and you are 6ft is it a 6ft wave??..
Can any one clarify this for me.. Ive head people say it goes on back face but how does that even work??? We used to surf a wave when i bodyboarding (before i saw the light) that had almost no back face but would be over 6ft front face because is was sucking so hard.. Sure trips me out

Belly


3ft is the Hawawian mesurment and they use the back of the wave, stupid I know.
Its like using the term waterman to decribe yourself


I though Hawaiians used the wave amplitude for wave measurement? Not sure how you measure the back of a wave.....

My guess a little over 6' one the face so around head high for me at 6'5" - perfect surf conditions



I havnt heard of that type of measurment, how does it work?
I agree perfect surf, maybe a touch bigger..
Legion
Legion
WA
2222 posts
WA, 2222 posts
7 May 2010 4:13pm
Generally if you've been surfing in Australia for a while and know what's up, the safe way to measure is half the face then round down, be conservative. Also, there are certain wave sizes that don't exist, such as odd numbers over 5'. You can't say it was 9' today, you can say it was 8-10'. Same for 14' - it's 12-15'. It's something like either of 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 25, etc.

You can also use face measurements if you use the "head" system, e.g. head-high == ~3', overhead == 4', DOH == 6-8', TOH == 10' or 10-12'.

That's just the way it is in Australia. If you measure otherwise, e.g. using the "foot" system for faces, expect to get called out or laughed at.
doggie
doggie
WA
15849 posts
WA, 15849 posts
7 May 2010 4:14pm
Legion said...

2-3' depending. Can't really tell if the light shadow is making the wave appear bigger than it is, can't really tell from the angle either where the bottom of the face is. At any rate, no way I'd be calling that 4'.


Yea but its a 6ft face tho, dont ya recon??
supbelly
supbelly
WA
384 posts
WA, 384 posts
7 May 2010 4:16pm
Legion said...

Generally if you've been surfing in Australia for a while and know what's up, the safe way to measure is half the face then round down, be conservative. Also, there are certain wave sizes that don't exist, such as odd numbers over 5'. You can't say it was 9' today, you can say it was 8-10'. Same for 14' - it's 12-15'. It's something like either of 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 25, etc.

You can also use face measurements if you use the "head" system, e.g. head-high == ~3', overhead == 4', DOH == 6-8', TOH == 10' or 10-12'.

That's just the way it is in Australia. If you measure otherwise, e.g. using the "foot" system for faces, expect to get called out or laughed at.


Cheers Buddy makes more sence now

Belly
cRAZY Canuk
cRAZY Canuk
NSW
2528 posts
NSW, 2528 posts
7 May 2010 6:16pm
doggie said...

cRAZY Canuk said...

doggie said...

supbelly said...

THis is something that spins me out also.. How do you get the 3 to 4 foot measurement?? And if a wave is head height and you are 6ft is it a 6ft wave??..
Can any one clarify this for me.. Ive head people say it goes on back face but how does that even work??? We used to surf a wave when i bodyboarding (before i saw the light) that had almost no back face but would be over 6ft front face because is was sucking so hard.. Sure trips me out

Belly


3ft is the Hawawian mesurment and they use the back of the wave, stupid I know.
Its like using the term waterman to decribe yourself


I though Hawaiians used the wave amplitude for wave measurement? Not sure how you measure the back of a wave.....

My guess a little over 6' one the face so around head high for me at 6'5" - perfect surf conditions



I havnt heard of that type of measurment, how does it work?
I agree perfect surf, maybe a touch bigger..


Amplitude is half the wave high - where is wave height is the depth from trough to top amplitude is the distance from where the "flat water level" to the top of the wave.
doggie
doggie
WA
15849 posts
WA, 15849 posts
7 May 2010 4:21pm
cRAZY Canuk said...

doggie said...

cRAZY Canuk said...

doggie said...

supbelly said...

THis is something that spins me out also.. How do you get the 3 to 4 foot measurement?? And if a wave is head height and you are 6ft is it a 6ft wave??..
Can any one clarify this for me.. Ive head people say it goes on back face but how does that even work??? We used to surf a wave when i bodyboarding (before i saw the light) that had almost no back face but would be over 6ft front face because is was sucking so hard.. Sure trips me out

Belly


3ft is the Hawawian mesurment and they use the back of the wave, stupid I know.
Its like using the term waterman to decribe yourself


I though Hawaiians used the wave amplitude for wave measurement? Not sure how you measure the back of a wave.....

My guess a little over 6' one the face so around head high for me at 6'5" - perfect surf conditions



I havnt heard of that type of measurment, how does it work?
I agree perfect surf, maybe a touch bigger..


Amplitude is half the wave high - where is wave height is the depth from trough to top amplitude is the distance from where the "flat water level" to the top of the wave.


Never seen it called like that, so now there is three ways you can do it, bloody confusing if you ask me
CMC
CMC
QLD
3954 posts
CMC CMC
QLD, 3954 posts
7 May 2010 6:25pm
doggie said...

cRAZY Canuk said...

doggie said...

cRAZY Canuk said...

doggie said...

supbelly said...

THis is something that spins me out also.. How do you get the 3 to 4 foot measurement?? And if a wave is head height and you are 6ft is it a 6ft wave??..
Can any one clarify this for me.. Ive head people say it goes on back face but how does that even work??? We used to surf a wave when i bodyboarding (before i saw the light) that had almost no back face but would be over 6ft front face because is was sucking so hard.. Sure trips me out

Belly


3ft is the Hawawian mesurment and they use the back of the wave, stupid I know.
Its like using the term waterman to decribe yourself


I though Hawaiians used the wave amplitude for wave measurement? Not sure how you measure the back of a wave.....

My guess a little over 6' one the face so around head high for me at 6'5" - perfect surf conditions



I havnt heard of that type of measurment, how does it work?
I agree perfect surf, maybe a touch bigger..


Amplitude is half the wave high - where is wave height is the depth from trough to top amplitude is the distance from where the "flat water level" to the top of the wave.


Never seen it called like that, so now there is three ways you can do it, bloody confusing if you ask me


I thought they were more interested in intervals.
Legion
Legion
WA
2222 posts
WA, 2222 posts
7 May 2010 4:27pm
^ Amplitude is the same as what I was talking about, i.e. the Hawaiian system:




Number (1) in the image.

<edit>Whoops, didn't like the image much. Go to:

en.wikipedia.org/wiki/Amplitude

and look at the peak amplitude measurement</edit>
daletor
daletor
VIC
301 posts
VIC, 301 posts
7 May 2010 6:30pm
These discussions are always a crack up.

Its nose high.

Did you know the guys who do the surf reports in the mornings like on swellnet and coastwatch paddle out just before first light so they can accurately measure the height of the wave from behind. They learnt that from the guys in Hawaii.

Phil I reckon the knee high, waist high head high is the way to go to stop the crap of measuring in feet. Just don't convert the height of the various body parts to Imperial measurements or you will get laughed at.

Looks like good waves all weekend. Good luck to those in the Vic Titles but don't quote the wave height!
Legion
Legion
WA
2222 posts
WA, 2222 posts
7 May 2010 4:34pm
doggie said...

Legion said...

2-3' depending. Can't really tell if the light shadow is making the wave appear bigger than it is, can't really tell from the angle either where the bottom of the face is. At any rate, no way I'd be calling that 4'.


Yea but its a 6ft face tho, dont ya recon??

Dunno. Depends on whether the wave goes to the red line or the blue line:




I think it's somewhere in between, closer to the red line. There's also a depth-of-field issue, which could also be deceptive. Show us another photo OG SUP, next one in the sequence.
CMC
CMC
QLD
3954 posts
CMC CMC
QLD, 3954 posts
7 May 2010 6:37pm
Legion said...

^ Amplitude is the same as what I was talking about, i.e. the Hawaiian system:




Number (1) in the image.

<edit>Whoops, didn't like the image much. Go to:

en.wikipedia.org/wiki/Amplitude

and look at the peak amplitude measurement</edit>


Now keep the amplitude constant and increase the interval and see how much more area is under the line per wave.

This is why waves from far distances with longer intervals have far greater power. Interval also greatly affects the speed in which waves travel.

Lets get scientific:

If you study waves, you will find that wavelength and frequency are related by an equation.

Speed of the wave = Frequency x Wavelength

Therefore, what you can see is that when the waves have greater intervals they also travel at far greater speeds. This is why islands such as Hawaii, Fiji etc with very short or nil continental shelf to slow waves down combined with very long interval swells from great distances away get very big waves.

Any more questions?
Legion
Legion
WA
2222 posts
WA, 2222 posts
7 May 2010 4:45pm
It's not that hard daletor. I've got no problems calling wave sizes in feet. Generally:

1' == waist high sets if you're lucky and you bend your knees
2' == waist to chest high
3' == head high
4' == OH
5' == almost 2 x HH
6' == around 2 x HH
6-8' == solid DOH sets
8-10' == TOH sets
10-12' == TOH - 4xOH

etc.

Don't need to paddle out to evaluate.

Or if you live around here, I'd also add:

3", 6", etc. for the more common days.
DavidJohn
DavidJohn
VIC
17570 posts
VIC, 17570 posts
7 May 2010 6:49pm
I call it double overhead... if you're a hobbit..

DJ
aussiefreebs
aussiefreebs
VIC
228 posts
VIC, 228 posts
7 May 2010 6:53pm
"With a glass and a half of full cream dairy milk in every half pound block", Professor Sumner Miller would say 4 ft, maybe a tincy bit bigger.
Jack Mack
Jack Mack
NSW
343 posts
NSW, 343 posts
7 May 2010 7:00pm
3 foot
Stop discussing it!
It' bloody 3 foot.[}:)]
Kristy tell em how big it was.
doggie
doggie
WA
15849 posts
WA, 15849 posts
7 May 2010 5:02pm
Legion said...

It's not that hard daletor. I've got no problems calling wave sizes in feet. Generally:

1' == waist high sets if you're lucky and you bend your knees
2' == waist to chest high
3' == head high
4' == OH
5' == almost 2 x HH
6' == around 2 x HH
6-8' == solid DOH sets
8-10' == TOH sets
10-12' == TOH - 4xOH

etc.

Don't need to paddle out to evaluate.

Or if you live around here, I'd also add:

3", 6", etc. for the more common days.


I would have gone to the red line.

3"-6" too funny mate
byronmaui
byronmaui
448 posts
448 posts
7 May 2010 5:03pm
5 foot face max. Great shot.

Aloha
OG SUP
OG SUP
VIC
3516 posts
VIC, 3516 posts
7 May 2010 7:04pm
Another hint


Legion
Legion
WA
2222 posts
WA, 2222 posts
7 May 2010 5:09pm
Easier other photos:


2'


Maybe 1' once it turns from a swell into a wave.


2-3'. For me to say 3' I want it to be clearly (at least marginally) above the person's head. Too big to say 2', and 2 1/2' doesn't exist so 2-3' it is.

I'll say "it's a solid x foot" when the waves are between x and x 1/2 feet.

And I'll use "it's x-y foot" if x == y - 0.5.
Legion
Legion
WA
2222 posts
WA, 2222 posts
7 May 2010 5:12pm
I tried doing something like that OG but that's where depth-of-field is deceptive. You've gotta shrink your daughter, but by how much? There could be a good 10m between her and the wave.
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