What does white on the land map stand for?

Legal analysis: What is the nature of the white area on the land map? It should be foggy. Don't go.

When the relative humidity reaches 100%, the water vapor in the air will condense into fine water droplets suspended in the air, which will reduce the visibility on the ground. This weather phenomenon is called fog. Fog is more common in spring from February to April. When the visibility in the atmosphere is lower than 1 km due to the condensation of suspended water vapor, meteorology calls this weather phenomenon fog. Conditions for fog formation: cooling, humidifying and increasing water vapor content. The types of fog are radiation fog, advection fog, mixed fog, evaporation fog and smoke.

Legal basis: Meteorological Law of People's Republic of China (PRC).

Article 6 Whoever engages in meteorological business activities shall abide by the meteorological technical standards, norms and regulations formulated by the state.

Article 7 The State encourages and supports the research and popularization of meteorological science and technology, trains meteorological talents, popularizes advanced meteorological science and technology, protects meteorological scientific and technological achievements, strengthens international meteorological cooperation and exchanges, develops meteorological information industry and improves meteorological work level. People's governments at all levels should care about and support the construction and operation of meteorological stations in ethnic minority areas, remote and poor areas, hard areas and islands. Units and individuals that have made outstanding contributions in meteorological work shall be rewarded.