What Is Sensible Heat?
Sensible heat means that when this heat is added or removed, the temperature of the substance will change without phase change. The product of the molar amount, molar heat capacity, and temperature difference of the substance is sensible heat. That is, when the object does not undergo chemical changes or phase changes, the heat required to increase or decrease the temperature is called sensible heat.
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- Sensible heat calculation formula Q = m · c (tt)) Q = mass · specific heat (temperature difference)
- A variety of satellite remote sensing data retrieval sensible heat / latent heat information products are one of the series of meteorological / climate environment data products launched by the Geographical National Conditions Monitoring Cloud Platform. [2]
Sensible heat remote sensing satellite information source
- The table shows various information from remote sensing satellite sources.
- Remote sensing satellite information source
Sensible heat data inversion algorithm
- According to the principle of heat balance, when analyzing the energy balance of the surface of the earth system, the net radiation Rn, latent heat flux LE, sensible heat flux H, and soil surface heat flux G satisfy the surface energy balance equation:
- Surface energy balance equation
- In the formula, Rn is the net radiation flux reaching the surface, LE is the latent heat flux, H is the sensible heat flux, and G is the soil heat flux. It can be known from the formula that if we want to study the impact of different cities' surface coverage on the formation of urban heat islands from the perspective of thermal balance, we must grasp the quantitative differences in the above four parameters of different types of urban surface coverage, especially directly affecting the surface temperature. Specific quantitative differences in sensible heat flux H values.
- Product Case