<p><strong>Question:</strong> What is the zero-offset reflection time from the horizontal seafloor surface at the same depth?</p>
<p><strong>If I have a point for e.g. at depth = 250m I do know how to solve it, but not sure how to solve this for an horizontal seafloor.</strong></p>
<p><a href="https://i.sstatic.net/7YrK1.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/7YrK1.png" alt="enter image description here" /></a></p>

CC BY-SA 4.0
2022-01-25T22:52:31.947Z
Looks like a homework question?  You'd need to offer your own thoughts/work as a minimum, and no guarantee you'll get much response as such a specific question may not have much widespread interest/use.  Using StackExchange for homework is generally only helpful if you're struggling with a concept or how to do a whole type of question.
JeopardyTempest
CC BY-SA 4.0
2022-01-26T09:04:35.313Z
Also, I don't understand the question. The answer given in the question gives an appropriate answer? The zero-offset reflection time for a horizontal reflector 250 m below the point of interest is (250+250)/velocity = 500/3000=0.166... as found by AnaRhisT. The assumption of the horizontal seafloor is what is already assumed in the theory.
Erik
<sea-floor>
zero-offset reflection time from the horizontal seafloor surface at the same depth
AnaRhisT
# zero-offset reflection time from the horizontal seafloor surface at the same depth

(Asked by: username_0 on 2022-01-24)

**Question:** What is the zero-offset reflection time from the horizontal seafloor surface at the same depth?

**If I have a point for e.g. at depth = 250m I do know how to solve it, but not sure how to solve this for an horizontal seafloor.**

[![enter image description here](https://i.sstatic.net/7YrK1.png)](https://i.sstatic.net/7YrK1.png)

**Tags:** sea-floor

> **Comments:**
> **username_1**: Looks like a homework question?  You'd need to offer your own thoughts/work as a minimum, and no guarantee you'll get much response as such a specific question may not have much widespread interest/use.  Using StackExchange for homework is generally only helpful if you're struggling with a concept or how to do a whole type of question.  
> **username_2**: Also, I don't understand the question. The answer given in the question gives an appropriate answer? The zero-offset reflection time for a horizontal reflector 250 m below the point of interest is (250+250)/velocity = 500/3000=0.166... as found by username_0. The assumption of the horizontal seafloor is what is already assumed in the theory.  

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