Climate of Arunachal Pradesh

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Arunachal Pradesh, nestled in the eastern Himalayas, boasts a diverse and dramatic climate, heavily influenced by its varied topography and altitude. From subtropical warmth in the foothills to alpine chill in the snow-capped mountains, the state experiences a wide range of temperatures and weather patterns.

Factors Influencing Arunachal's Climate:

Altitude: The most significant factor shaping Arunachal's climate is its dramatic elevation gradient. Lower valleys experience hot and humid conditions, while higher altitudes are considerably cooler, with temperatures dropping as you ascend.

Monsoon: The southwest monsoon (June-September) brings heavy rainfall to the state, drenching the land and feeding its many rivers.

Himalayan Influence: The towering Himalayas play a crucial role in moderating temperatures and influencing precipitation patterns. They act as a barrier, blocking cold winds from Central Asia and trapping moisture-laden winds from the Bay of Bengal.

Regional Climatic Variations:

Arunachal Pradesh can be broadly divided into four climatic zones:

Tropical and Subtropical Zone (Up to 1,000 meters): This zone, encompassing the foothills and lower valleys, experiences hot and humid summers with temperatures reaching 40C. Winters are mild with temperatures ranging from 15C to 21C. Rainfall is heavy, especially during the monsoon season.

Sub-Temperate Zone (1,000 – 2,000 meters): This zone, characterized by hills and valleys, has a more temperate climate with warm summers and cool winters. Rainfall is still abundant but less intense than in the lower zone.

Temperate Zone (2,000 – 3,500 meters): This zone, dominated by mountains and forests, experiences cool summers and cold winters with occasional snowfall. Rainfall is moderate.

Alpine Zone (Above 3,500 meters): This zone, comprising high mountains and glaciers, has an alpine climate with frigid temperatures and heavy snowfall. Summers are short and cool.

Impact of Climate on Biodiversity and Life:

The diverse climate of Arunachal Pradesh supports a rich variety of flora and fauna. The state is home to lush tropical rainforests, temperate forests, and alpine meadows, each harboring unique ecosystems. The climate also influences agricultural practices, with different crops cultivated at different altitudes.

Climate Change Concerns:

Arunachal Pradesh, like other Himalayan regions, is vulnerable to the impacts of climate change. Rising temperatures, changing precipitation patterns, and glacial melt pose significant threats to the state's fragile ecosystems, water resources, and biodiversity.

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