Subtropics
**1. Subtropical Climate Characteristics:**
– Subtropical zones are located north and south of the tropics, covering latitudes from 23°26′10.1″ to approximately 35° north and south.
– Subtropical climates are characterized by hot summers and mild winters with infrequent frost.
– Common types include humid subtropical and dry summer/Mediterranean climate.
– Subtropical climates host deserts and support the growth of plants like palms, citrus, and mango.
– Rainfall patterns are influenced by Hadley cell circulation, with high-pressure areas causing semiarid/arid climates and desert formation.
– Tropical cyclones contribute significantly to local rainfall in subtropical regions.
**2. Flora in Subtropical Climates:**
– Subtropical climates support plant growth due to mild winters.
– Plants like palms and citrus flourish in subtropical regions.
– Crops traditionally farmed in tropical climates, such as mango and avocado, thrive in subtropics.
– Winter cool seasons disappear moving towards the tropical side.
**3. Classification of Subtropical Zones:**
– Subtropical zones are defined as lying poleward of the tropics at latitudes approximately 35° north and south.
– Various climate classifications differentiate subtropical regions based on temperature criteria.
– The Holdridge classification distinguishes subtropical and tropical climates based on temperature averages.
– The subtropical region is characterized by a mean annual biotemperature between specific temperature ranges.
**4. Subtropical Climate Varieties:**
– Humid subtropical climate is found in regions like the northern Middle East, southern China, southeastern United States, and southern Europe.
– Tropical lows and weakening tropical storms contribute to seasonal rainfall in humid subtropical climates.
– Subtropical highland climate features mild temperatures year-round and is found in mountainous areas.
– Mediterranean climate resembles the climate of the Mediterranean Basin and parts of Australia, South Africa, and Chile.
– Semi-desert/desert climate is characterized by high temperatures, low rainfall, and high humidity, with examples in cities like Alicante, Cairo, and Lima.
**5. Related Topics:**
– Climate Classification Systems like the Holdridge life zone system are used to classify climates based on temperature and precipitation.
– Desert Climate Characteristics include low precipitation levels, high evaporation rates, extreme temperature variations, and unique flora and fauna adaptations.
– Tropical Savannas are characterized by grasslands with scattered trees, found in tropical regions with distinct wet and dry seasons, supporting diverse wildlife populations and playing a crucial role in the global carbon cycle.
– Urban Heat Islands result from human activities and urbanization, impacting energy consumption and air quality, with strategies like green roofs and reflective surfaces mitigating their effects and exacerbating heat-related health issues.