Ok, so this is a dumb question that I couldn't find the answer to anywhere and unfortunately have to ask. What is the official way to take the water temperature of a pond/lake? Is there a standard depth that you use when you take a temperature reading, or can I just shoot a laser at the surface? There's a lot of articles out there that I'm reading that toss out temperatures but without any context, so that's leading me to believe there is some sort of standard way to take a measurement when talking about temperatures.