This map shows the temperature of Earth’s lands during the nighttime. Temperature is a measure of how warm or cold an object is. During the day, the Sun’s rays warm Earth’s lands. At night, the lands typically cool off. Landscapes cool off at night because they release their warmth to air above while they are no longer receiving sunlight. Scientists can measure the temperature of Earth’s lands from space using instruments carried on satellites. Scientists want to know the land’s temperature for many important reasons. For example, in places where it is too hot or too cold food crops may die. Temperature also influences weather and climate patterns. So, mapping the temperature of Earth’s lands helps scientists to better understand our world.
These data currently include monthly composites from January 2007 to present; data from earlier years of the Terra mission will be added as they are reprocessed.
