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Old 05-24-2018, 12:02 PM
 
Location: Mid Atlantic USA
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Quote:
Originally Posted by Joe90 View Post
That would tend to give higher temperature readings though.

Not at the depth taken and the distance offshore. We are talking a few hundred feet or more offshore at a depth of like 7' down. Temps taken in shallow pools on the beach are a joke and shouldn't be counted at all. Just what do you consider accurate then?
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Old 05-24-2018, 12:04 PM
 
Location: Mid Atlantic USA
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Name these so called more accurate other sources Joe. I'm curious being you never stepped foot in our waters here.
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Old 05-24-2018, 12:28 PM
 
Location: Top of the South, NZ
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Quote:
Originally Posted by tom77falcons View Post
Not at the depth taken and the distance offshore. We are talking a few hundred feet or more offshore at a depth of like 7' down. Temps taken in shallow pools on the beach are a joke and shouldn't be counted at all. Just what do you consider accurate then?
Yep, that sounds pretty accurate. If I'm posting "official" temperatures from here, I use the temperature from a local ocean research institute -they monitor temperatures for harvesting shellfish spat, so accuracy is critical. It's located 8km offshore at records temperatures at 1, 8 and 15 metres.

For the coldest 6-7 months of the year, it's data and Satellite data are closely matched, but for the warmer months they may as well be different locations.

Posted beach water temperatures aren't really a thing in NZ, but I like to record temperatures in the surf. Warmer temperatures than NOAA indicates, aren't really due to shallow rock pools imo, but from heating on a bigger scale - tidal estuaries of a few square miles, that discharge huge quantities of warmed water, or shallow ( under 10 metres) sandy beaches. These can sometimes see swimming temperatures 7-8C higher than satellite temperatures.
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Old 05-24-2018, 12:29 PM
 
Location: Mid Atlantic USA
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I'll just leave these here if you want an idea of what a south jersey beach is like in summer.




https://www.youtube.com/watch?v=IlVpG4fLDj8


https://www.youtube.com/watch?v=HfuInxZ-PGU
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Old 05-24-2018, 12:33 PM
 
Location: Mid Atlantic USA
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Quote:
Originally Posted by Joe90 View Post
Yep, that sounds pretty accurate. If I'm posting "official" temperatures from here, I use the temperature from a local ocean research institute -they monitor temperatures for harvesting shellfish spat, so accuracy is critical. It's located 8km offshore at records temperatures at 1, 8 and 15 metres.

For the coldest 6-7 months of the year, it's data and Satellite data are closely matched, but for the warmer months they may as well be different locations.

Posted beach water temperatures aren't really a thing in NZ, but I like to record temperatures in the surf. Warmer temperatures than NOAA indicates, aren't really due to shallow rock pools imo, but from heating on a bigger scale - tidal estuaries of a few square miles, that discharge huge quantities of warmed water, or shallow ( under 10 metres) sandy beaches. These can sometimes see swimming temperatures 7-8C higher than satellite temperatures.

Yes but those outlets aren't usually near where the piers are and on high tide the ocean water floods into the inlet having opposite impact. On the east coast the water coming out of inlets turns right due to rotation of earth and heads south down the coast. I have never noticed on beaches I swim on in NJ change temp due to tides. you have to go into the back bay itself to feel the warmer water there. I have never felt it with tide change, though I don't swim near inlets.

If anything I have found satellite imagery is warmer than NOAA buoys.
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Old 05-24-2018, 12:42 PM
 
Location: Top of the South, NZ
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Quote:
Originally Posted by tom77falcons View Post
Yes but those outlets aren't usually near where the piers are and on high tide the ocean water floods into the inlet having opposite impact. On the east coast the water coming out of inlets turns right due to rotation of earth and heads south down the coast. I have never noticed on beaches I swim on in NJ change temp due to tides. you have to go into the back bay itself to feel the warmer water there. I have never felt it with tide change, though I don't swim near inlets.

If anything I have found satellite imagery is warmer than NOAA buoys.
Probably quite different geography where you are, but here the inlets are almost entirely empty at low tide, so the (charmingly named) mudflats warm up the water as the tide comes in -the tide peaks at around 5.5 metres, so over a few square miles, that's a huge amount of warmed water.

I don't notice the change due to the tide either, but I do notice the temperature between beaches near large inlets, and those without -that's something that satellite data never makes picks up on.
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Old 05-24-2018, 12:53 PM
 
Location: Top of the South, NZ
22,216 posts, read 21,671,761 times
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Quote:
Originally Posted by tom77falcons View Post
Name these so called more accurate other sources Joe. I'm curious being you never stepped foot in our waters here.
I don't doubt what you're saying about water temperatures there, and I do think that satellite data would show differences in average sea temperature between locations. I just think that satellite data won't be much use when deciding to go to the beach.
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Old 05-24-2018, 01:17 PM
 
Location: Top of the South, NZ
22,216 posts, read 21,671,761 times
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Quote:
Originally Posted by tom77falcons View Post
I'll just leave these here if you want an idea of what a south jersey beach is like in summer.




https://www.youtube.com/watch?v=IlVpG4fLDj8


https://www.youtube.com/watch?v=HfuInxZ-PGU
Looks nice, but similar scenes are going to be found in most places with a nice beach, and swimmable temperatures -take away the high rises and condos, and even Invercargill will look much the same during the height of summer.
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Old 05-24-2018, 01:32 PM
 
Location: Victoria, BC, Canada
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Quote:
Originally Posted by Joe90 View Post
Looks nice, but similar scenes are going to be found in most places with a nice beach, and swimmable temperatures -take away the high rises and condos, and even Invercargill will look much the same during the height of summer.
Beaching in Invercargill? I'm skeptical.
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Old 05-24-2018, 07:46 PM
 
Location: Victoria, BC, Canada
5,731 posts, read 3,511,959 times
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Quote:
Originally Posted by Ed's Mountain View Post
Beaching in Invercargill? I'm skeptical.
I stand corrected. They even have a surf life saving club there!

https://www.surflifesaving.org.nz/or...nz/oreti-slsc/

Those are some brave (or foolhardy) swimmers: look at these water temperatures.


Source: Oreti Beach Water Temperature (Sea) and Wetsuit Guide (Southland, New Zealand)
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