Where can I find the measured data of surface temperature?

The ventusky application combines accurate weather forecasts for any geographical location on the earth with weather maps for a wider area. Obviously, you can see where the rain in this area comes from or the wind direction. The uniqueness of this application lies in the amount of data displayed. Facing the world, it provides forecast information of various meteorological variable values such as temperature, precipitation, wind direction, cloud cover, air pressure and snow cover at different altitudes. Real-time display of global climate, heat map visualization effect is very good. DRYAD has a well-organized data set that can be downloaded. Includes a global thermal comfort data set, which contains a lot of sensor data.

The surface temperature is the temperature of the ground. After the heat energy of the sun radiates to the ground, part of it is reflected and part of it is absorbed by the ground, which makes the ground warm. The temperature obtained after measuring the ground temperature is the ground temperature. The surface temperature will also change according to the location environment. There are many factors that affect the change of surface temperature, such as surface humidity, temperature, light intensity, surface materials (such as lawn or bare land, cement floor or asphalt floor) and so on. For a region, the surface temperature of the region mainly depends on the latitude of the region (for example, the temperature difference between the region on the equatorial line and the Arctic Ocean region in the Arctic is tens of degrees), as well as the altitude difference, population density, industrial development and forest coverage (for example, the temperature difference between the desert region and the virgin forest region in the same latitude is also very large).