Unfortunately, there is no full article provided for me to summarize. The section given is just a small excerpt titled "2.12.5. Lake Temperature" without any additional context or content. Without the complete article, I am unable to generate a comprehensive summary that captures the main points and key details. Please provide the full article text so that I can create an effective summary according to the guidelines you have outlined. I'd be happy to summarize the content once the complete article is available.