About Lesson
Temperature
- Water temperature in ponds generally depends upon solar radiation, air temperature, and depth.
- Water has a large capacity to hold heat.
- Light energy is absorbed exponentially with depth so most heats are absorbed within the upper layer of water.
- This is particularly true in fish ponds because of high concentration of dissolved organic and particulate matter greatly increases the absorption of energy as compared to less turbid water.
- The density of water is dependent upon water temperature.
Table: Density of water( g/cm3) at different temperatures
|
0C |
g/cm3 |
|
0 |
0.999867 |
|
4 |
1 |
|
10 |
0.9997277 |
|
15 |
0.9991265 |
|
20 |
0.9982323 |
|
25 |
0.9970739 |
|
30 |
0.9956756 |
