# Mean Sea Level Mean Sea Level (MSL) is the average sea level, measured over 19 years. Sun and Moon gravity influences the level of water above Earth's surface. The water attracts the Sun side of the earth due to Sun's gravity while the other side due to lack gravity water level rises. To account for the fluctuations, the measurements averaged over Nineteen years. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://i.janardhanpulivarthi.com/season-1/mean-sea-level.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.