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Thread: Why Are Temperatures Near Lakes Warmer?

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    Question Why Are Temperatures Near Lakes Warmer?

    Can anyone give me a quick answer to why temperatures near a lake in the winter are normally warmer than surrounding areas and temperatures near a like in the summer are normally cooler than surrounding areas?

    I'm guessing it has something to do with evaporation happening at a certain temperature but I haven't been able to find the answer.

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    Post Re: Temperatures near lakes?

    In winter, lake water is warmer than the air. In summer, lake water is cooler than the air.

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    Post Re: Temperatures near lakes?

    Quote Originally Posted by AngryPotato
    Can anyone give me a quick answer to why temperatures near a lake in the winter are normally warmer than surrounding areas and temperatures near a like in the summer are normally cooler than surrounding areas?

    I'm guessing it has something to do with evaporation happening at a certain temperature but I haven't been able to find the answer.
    I believe it may have something to do with the following -

    Water is better at conserving heat than air. The oceans are basicaly large heat resevoirs. Therefore, even when the surrounding eviroment is colder, bodies of water conserve their heat for longer. This heat does gradually escape though, and this may account for the higher temperatures around such bodies of water.

    Conversely, the latent heat required to heat water is greater that that to heat air, so they would also take longer to heat up, so in summer, you could expect them to be cooler than the surrounding enviroment.

    This is why places such as the British Isles tend to have cool summers and mild winters. It's Maritime climate suffers much less weather extremes than a Continetal climate because the Gulf Stream acts like a huge storer and convector of heat from the warmer south, up north-west across the Atlantic and deposits it's heat along the coast of Britain
    Last edited by Milesian; Monday, January 19th, 2004 at 10:24 PM.

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    Post Re: Temperatures near lakes?

    Quote Originally Posted by Milesian
    I believe it may have something to do with the following -

    Water is better at conserving heat than air. The oceans are basicaly large heat resevoirs. Therefore, even when the surrounding eviroment is colder, bodies of water conserve their heat for longer. This heat does gradually escape though, and this may account for the higher temperatures around such bodies of water.

    Conversely, the latent heat required to heat water is greater that that to heat air, so they would also take longer to heat up, so in summer, you could expect them to be cooler than the surrounding enviroment.

    This is why places such as the British Isles tend to have cool summers and mild winters. It's Maritime climate suffers much less weather extremes than a Continetal climate.
    It has to do with energy flow. High enery flows to low energy. I walked away from physics a long time a go. This particular type of study is Thermodynamics. Warm air/cold water -- The cold water draws the heat out of the air making the air cooler. Cold air/warm water -- The cold air draws heat out of the warm water. On days like that you can see the water "steaming."

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    Post Re: Temperatures near lakes?

    I appreciate the answers gentlemen. I'm working on some silly thing for school.

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    Post Re: Temperatures near lakes?

    Quote Originally Posted by cosmocreator
    It has to do with energy flow. High enery flows to low energy. I walked away from physics a long time a go. This particular type of study is Thermodynamics. Warm air/cold water -- The cold water draws the heat out of the air making the air cooler. Cold air/warm water -- The cold air draws heat out of the warm water. On days like that you can see the water "steaming."

    I might also add that energy flow will continue until equilibrium is reached.

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    Post Re: Temperatures near lakes?

    Also, any wind coming off the lake in the summer will have been cooled by evaporation and bring this cooler air inland.

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