What's that mean?billjohnson said:
Of course we do and we can. But part of PF's mission is to help folks to learn how to learn. We don't spoon-feed folks here. Please do at least a little Google searching and post what you find. If you have questions about what you have found, we are happy to help you with those questions.billjohnson said:
You have mistaken this for a Q&A forum where you DO just ask and get answered. We are much more interested in helping people learn how to learn. Spoon feeding answers is boring. As @berkeman said, we expect some effort on your part. Again, not a Q&A forum.billjohnson said:
Suggesting that you actually use Google to search on your question before asking volunteers to spend their time to do that for you? Who is insulting whom?billjohnson said:
The Earth's yearly mean temperature is calculated by taking the average of the daily temperatures recorded at various locations around the world over the course of a year. This data is then combined and analyzed to determine the overall mean temperature for the entire planet.
Several factors are considered when deriving the Earth's yearly mean temperature, including air and ocean temperatures, land surface temperatures, and sea ice coverage. These factors are measured and analyzed using various instruments and techniques to get an accurate representation of the Earth's overall temperature.
To account for changes in temperature over time, scientists use long-term data sets that span several decades or even centuries. This allows them to identify and analyze trends and patterns in temperature fluctuations, and make adjustments for any potential biases in the data.
Yes, natural events such as volcanic eruptions and solar activity can have a significant impact on the Earth's yearly mean temperature. Volcanic eruptions can release large amounts of ash and gases into the atmosphere, which can block sunlight and cause a temporary cooling effect. Solar activity, such as changes in the sun's energy output, can also influence the Earth's temperature over time.
Scientists use a variety of methods to ensure the accuracy of the Earth's yearly mean temperature data. This includes using multiple data sets from different sources, cross-checking with other climate indicators such as sea level and ice cover, and regularly calibrating and updating measurement instruments. Additionally, peer review and collaboration among scientists help to validate the accuracy of the data and results.