<p>This methodology won't work. Haude's method only gives a rough estimate of evaporation. Consider the hydrologic cycle: Rainfall = evaporation (or evapotranspiration) + runoff + surface detention + soil moisture storage + infiltration +/- interbasin transfer. It sounds like you don't have nearly enough data to estimate the aquifer recharge. </p>

CC BY-SA 3.0
2016-07-18T11:39:41.937Z
You are right that Haude is very crude but I don't have enough data. Also I don't need to have very exact recharge measurement. I value of recharge is to be added in groundwater to account for its affect to change water table. Water table in said model actually varies by other factors. I have data about radiation, temp, rain, humidity, wind speed.
Ather Cheema
CC BY-SA 3.0
2016-07-18T11:20:38.457Z
2016-07-18T11:20:38.457Z
Gordon Stanger
<p>I want to calculate recharge for an aquifer for which I have calculated daily ET by Haude's method and I also have daily precipitation data. How can I calculate recharge per minutes. </p>

CC BY-SA 3.0
2016-07-18T11:47:49.180Z
I know I have to first calculate field capacity and wilting point. Most methods estimate wilting point and field capacity by percentage of sand, silt and clay content. What if more than 50% of soil is > 2mm i.e fall in 'gravel' range?
Ather Cheema
<precipitation><evaporation>
Recharge calculation for an aquifer
Ather Cheema
# Recharge calculation for an aquifer

(Asked by: username_0 on 2016-07-18)

I want to calculate recharge for an aquifer for which I have calculated daily ET by Haude's method and I also have daily precipitation data. How can I calculate recharge per minutes.

**Tags:** precipitation, evaporation

> **Comments:**
> **username_0**: I know I have to first calculate field capacity and wilting point. Most methods estimate wilting point and field capacity by percentage of sand, silt and clay content. What if more than 50% of soil is > 2mm i.e fall in 'gravel' range?  

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## 1 answers

### Answer by username_1 on 2016-07-18. Score: 2

This methodology won't work. Haude's method only gives a rough estimate of evaporation. Consider the hydrologic cycle: Rainfall = evaporation (or evapotranspiration) + runoff + surface detention + soil moisture storage + infiltration +/- interbasin transfer. It sounds like you don't have nearly enough data to estimate the aquifer recharge.

> **Comments:**
> **username_0**: You are right that Haude is very crude but I don't have enough data. Also I don't need to have very exact recharge measurement. I value of recharge is to be added in groundwater to account for its affect to change water table. Water table in said model actually varies by other factors. I have data about radiation, temp, rain, humidity, wind speed.  

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