WebHeight of base: 20,000 - 40,000 ft; Shape: layered, tufty or patchy; Latin: cirrus - lock or tuft of hair; Precipitation: none; What are cirrus clouds? … Cirrus clouds are usually formed as warm, dry air rises, causing water vapor to undergo deposition onto rocky or metallic dust particles at high altitudes. The average cirrus cloud altitude increases as latitude decreases, but the altitude is always capped by the tropopause. These conditions commonly occur at … See more Cirrus (cloud classification symbol: Ci) is a genus of high cloud made of ice crystals. Cirrus clouds typically appear delicate and wispy with white strands. Cirrus are usually formed when warm, dry air rises, causing See more Random, isolated cirrus do not have any particular significance. A large number of cirrus clouds can be a sign of an approaching See more Scientists have studied the properties of cirrus using several different methods. Lidar (laser-based radar) gives highly accurate information on the cloud's altitude, length, and … See more Cirrus clouds are one of three different genera of high-level clouds, all of which are given the prefix "cirro-". The other two genera are cirrocumulus and cirrostratus. High-level clouds … See more Cirrus are wispy clouds made of long strands of ice crystals that are described as feathery, hair-like, or layered in appearance. First defined scientifically by Luke Howard in … See more Cirrus clouds cover up to 25% of the Earth (up to 70% in the tropics at night ) and have a net heating effect. When they are thin and translucent, the clouds efficiently absorb outgoing See more Cirrus clouds can produce several optical effects like halos around the Sun and Moon. Halos are caused by interaction of the light with hexagonal ice crystals present in the clouds which, depending on their shape and orientation, can result in a wide variety of … See more
Exactly How Much Does a Cloud Weigh? - ThoughtCo
WebCumulonimbus (from Latin cumulus 'heaped', and nimbus 'rainstorm') is a dense, towering vertical cloud, [1] typically forming from water vapor condensing in the lower troposphere that builds upward carried by powerful buoyant air currents. Above the lower portions of the cumulonimbus the water vapor becomes ice crystals, such as snow and ... WebIn addition to cloud type determining its height, latitude plays a role in how high a cloud is in the sky. Most clouds we see, ... Cirrus Cirrus clouds are the most common of the High Cloud (5000-13000m) group. They … theoretical models in human services
Cirrus Clouds - an overview ScienceDirect Topics
WebThere are ten main cloud types, which are further divided into 27 sub-types according to their height shape, colour and associated weather, Clouds are categorised as low (from … WebApr 26, 2024 · Cloud cover is often used to evaluate cloud forecasts. However, this is not a good metric due to inconsistent methods for assessing the cloud cover. Some ceilometers only measure clouds up to a height of 7 km (e.g., ), and thus, cirrus clouds are not included as part of the cloud cover. In some countries, the cloud cover is assessed by a … WebApr 14, 2024 · Retrieved and model cirrus cloud effective particle size for the case of cloud thickness Δz c = 0.5 km but keeping the same average cloud height = 8.5 km as a function of cloud optical depth for (a) τ c = 1 and (b) τ c = 4. Here we use another wavenumber set shown in Figure 8 in addition to the wavenumber set shown in Figure S11. theoretical models in healthcare