Arctic Climate Change Factors

The video discusses Arctic amplification, where surface temperatures in the Arctic rise faster than the global average, particularly in winter. It explores the energy budget imbalance and feedback mechanisms like albedo and greenhouse effects. The video explains solar radiation interactions with atmospheric components and introduces an empirical model for solar irradiance. The model's application in the Arctic shows variations in solar irradiance and its relationship with atmospheric conditions. Albedo calculations reveal their impact on climate, highlighting changes in global solar radiation and diffuse radiation. The video concludes with insights into solar radiation and climate interactions.

What is the term used to describe the phenomenon where Arctic temperatures rise faster than the global average?

• Climate Change

• Arctic Amplification

• Global Warming

• Polar Vortex

Which season experiences the most significant increase in Arctic temperatures?

• Autumn

• Spring

• Winter

• Summer

What initiates changes in atmospheric gases, liquids, and particles?

• Ocean Currents

• Wind Patterns

• Solar Radiation

• Volcanic Eruptions

What is the purpose of the empirical model of global solar irradiance (EMGSI)?

• To predict weather patterns

• To calculate solar radiation under all sky conditions

• To measure sea ice thickness

• To monitor greenhouse gas emissions

During which years was the EMGSI model applied to calculate solar irradiance in the Arctic?

• 2000-2018

• 1990-2000

• 2010-2020

• 1980-1990

What was the annual decrease in global solar irradiance due to absorption from 2000 to 2018?

• 1.37%

• 0.02%

• 0.24%

• 0.8%

What factor increased by 0.43% per year, affecting solar irradiance losses?

• Sea Ice Extent

• Cloud Cover

• Water Vapor Pressure

• Air Temperature

What is the significance of albedos at the top of the atmosphere and the surface?

• They determine ocean currents

• They regulate wind patterns

• They influence energy balance and climate

• They control volcanic activity

How did the annual albedos at the top of the atmosphere change over four years?

• They remained constant

• They fluctuated randomly

• They increased significantly

• They showed decreasing tendencies

What was the observed change in annual air temperature from 2000 to 2018?

• 0.07 degrees centigrade increase

• 0.07 degrees centigrade decrease

• No change

• 0.5 degrees centigrade increase