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Post by southathens on Jan 14, 2023 17:47:56 GMT -5
In my experience, rooftop sites' daytime temps aren't much different from what would be placed close to the ground (provided the surface isn't a dark color), though due to thermal inversions, like Tommy mentioned earlier, a rooftop site would generally be a few °F warmer at night, so not really representative of a station placed close to the ground. That being said, I'll take your word on it for being the warmest place in Europe, summer average highs in the mid-90s right at the coast, even for a short POR is impressive Well according to the National Observatory of Athens the T biases of their stations if I remember correctly is almost non existent (less than 0.3C) Below is the relevant bit on how meticulous they are when they install them in rooftops (page 4) meteosearch.meteo.gr/Raw%20Materials/2017-Geoscience_Data_Journal-stations.pdf |
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Post by greysrigging on Jan 14, 2023 17:49:14 GMT -5
Ok, Roebourne, Port Hedland, Onslow, Learmonth, Broome, Derby just to name a few Here is Derby, an oppressive place on the Kimberley coast  Also, you can find AU data here www.bom.gov.au/climate/data/ |
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Post by southathens on Jan 14, 2023 17:53:28 GMT -5
Ok, Roebourne, Port Hedland, Onslow, Learmonth, Broome, Derby just to name a few Here is Derby, an oppressive place on the Kimberley coast Also, you can find AU data here www.bom.gov.au/climate/data/Wow that's amazing! Do you know how far from the coast the station is located? I mean this is crucial in hot areas around the world. If its a few kms from the coast it can have a huge impact. Lindos station for example is smack bang on the coast. Like 150 meters off the coast if google earth does not lie to me |
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Post by greysrigging on Jan 14, 2023 18:04:08 GMT -5
Derby AWS is at the Airport, a few klm inland. The older Post Office manual site was in town, close to the Port.  |
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Post by southathens on Jan 14, 2023 18:07:24 GMT -5
Derby AWS is at the Airport, a few klm inland. The older Post Office manual site was in town, close to the Port. Is this station still more than 2km from the coast? Do you have any idea? I am trying to understand if a station exactly on the coast in AU (or a few hundred meters from the actual coast) can do what Lindos does. I mean I would expect the ocean to have a cooling effect on high Ts in Australia. |
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Post by AJ1013 on Jan 14, 2023 18:43:06 GMT -5
southathensMost of coastal India also manages 35C+ average highs in the hottest month.
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Post by southathens on Jan 14, 2023 19:05:55 GMT -5
southathens Most of coastal India also manages 35C+ average highs in the hottest month. Can you give me some examples? |
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Post by AJ1013 on Jan 14, 2023 19:09:08 GMT -5
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Post by southathens on Jan 14, 2023 19:28:16 GMT -5
Thanks! It's 20km inland. I calculated the distance from the center of the city until the coast from google earth. |
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Post by AJ1013 on Jan 14, 2023 19:44:22 GMT -5
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Post by greysrigging on Jan 14, 2023 19:53:04 GMT -5
Derby AWS is at the Airport, a few klm inland. The older Post Office manual site was in town, close to the Port. Is this station still more than 2km from the coast? Do you have any idea? I am trying to understand if a station exactly on the coast in AU (or a few hundred meters from the actual coast) can do what Lindos does. I mean I would expect the ocean to have a cooling effect on high Ts in Australia. Generally speaking, temps on the pilbara and kimberley coasts are 'spatially coherent', ie little if any change over a few klm from the water's edge. Afternoon sea breezes may hinder extreme max temps of course, particularly with the timing of the winds. For example, the AWS at Mardie Station on the Pilbara coast recorded 48.3c as the max temp before noon yesterday, and was back down to 34c by 3.30pm. Derby P.O. is about 2klm from the sea.  |
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Post by southathens on Jan 14, 2023 20:15:38 GMT -5
Is this station still more than 2km from the coast? Do you have any idea? I am trying to understand if a station exactly on the coast in AU (or a few hundred meters from the actual coast) can do what Lindos does. I mean I would expect the ocean to have a cooling effect on high Ts in Australia. Generally speaking, temps on the pilbara and kimberley coasts are 'spatially coherent', ie little if any change over a few klm from the water's edge. Afternoon sea breezes may hinder extreme max temps of course, particularly with the timing of the winds. For example, the AWS at Mardie Station on the Pilbara coast recorded 48.3c as the max temp before noon yesterday, and was back down to 34c by 3.30pm. Derby P.O. is about 2klm from the sea. Well it does make sense to be ''spatially coherent'' during extreme heat events. I get that but let's say on a normal day, the ocean does not have any cooling effect? I located the post office and google earth tells me its 2.6km from the coast. |
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Post by greysrigging on Jan 14, 2023 20:16:40 GMT -5
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Post by southathens on Jan 14, 2023 20:19:12 GMT -5
6km from the coast according to google earth For comparison downtown Athens 5km from the coast has a July mean max of around 34.5C while Hellenikon in the Athens Riviera just a few meters from the coast (like less than 20 meters) is around 32C. i mean especially in hot areas I think even few kms inland can give us significant T differences. |
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Post by southathens on Jan 14, 2023 20:21:38 GMT -5
Onslow post office is sited 200m from the Indian Ocean ( I worked here in 1998/99 )    Yep thats good enough! 35.7C I see on wiki the highest average max. That's really impressive for a coastal area. Still I stick to my initial hypotheses that few parts of the world can manage this right on the coasts! |
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Post by southathens on Jan 14, 2023 20:42:03 GMT -5
I found also the normals between 2014 and 2022 for Lindos (unfortunately the data between 2010 and 2014 are not public since the station was on test mode by the National Observatory of Athens) and the highest average max has slightly elevated to 35.3C in July. That must be as high as any area in Europe can go right on the coast. I will be amazed if we find anything higher than that anywhere in coastal Europe (and if we do, it will probably be somewhere in Greece).  |
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Post by Cheeseman on Jan 14, 2023 21:16:38 GMT -5
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Post by desiccatedi85 on Jan 14, 2023 21:17:47 GMT -5
Antalya, which is located right on the Turkish coast, has a similar geographical setting to Lindos, and highs also average 95F (35C) in peak summer. Not sure if I consider Anatolia to be Europe however, but this definitely competes with Lindos, and it's over a regular 30-year PoR as well. The lows are not that impressive though.
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Post by greysrigging on Jan 14, 2023 21:23:40 GMT -5
Learmonth on the Exmouth Gulf has exceptionally high coastal mean max temps in summer. To be fair I'm not sure if the instrumentation is on the Airport grounds several klm from the coast or at the Solar Observatory, 300m from the coast. Be that as it may, the site is on a peninsular dominated by the central Cape Range, so Learmonth and to a lesser extent Exmouth town are on the lee side of these ranges which rise over 300m from the Indian Ocean coast.  |
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Post by southathens on Jan 14, 2023 21:24:47 GMT -5
southathens Cheers for including the record highs and lows. Record low for all of summer: 16.8 C = no cold crummer crap on record =  Right! But then take a look at August, never dropping below 24C the past 9 years! |
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