<p>I have $u$-wind, $v$-wind and specific humidity. I would like to compute moisture flux convergence at a grid point. So I need to compute the value of $q(\frac{du}{dx} + \frac{dv}{dy})$</p>

<p>My question is how to compute $\frac{du}{dx}$ and $\frac{dv}{dy}$ from $u$-wind and $v$-wind at grid point $(x,y)$? </p>

CC BY-SA 3.0
2017-02-09T08:25:11.087Z
What is $u$-wind and $v$-wind?
Yashas
CC BY-SA 3.0
2017-02-09T08:32:04.203Z
u is the zonal velocity and v is meridional velocity.
Kay
<meteorology><moisture-flux>
How to compute the moisture flux convergence at a grid point?
Kay
# How to compute the moisture flux convergence at a grid point?

(Asked by: username_0 on 2017-02-09)

I have $u$-wind, $v$-wind and specific humidity. I would like to compute moisture flux convergence at a grid point. So I need to compute the value of $q(\frac{du}{dx} + \frac{dv}{dy})$

My question is how to compute $\frac{du}{dx}$ and $\frac{dv}{dy}$ from $u$-wind and $v$-wind at grid point $(x,y)$?

**Tags:** meteorology, moisture-flux

> **Comments:**
> **username_1**: What is $u$-wind and $v$-wind?  
> **username_0**: u is the zonal velocity and v is meridional velocity.  

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