Am I correct with my answeres below?
During which hours of the day is the earth's emitted radiation highest and Why?
My Answer: I think it is in the afternoon because of the increase in surface temperature.
Why are values of LW^ higher in the summer than in the winter?
My Answer: Is it because of the surface temperature.
What makes the difference in surface albedo between 11:00 am and 5:00 pm?
My Answer: Surface temperature and net radiation.
I have no idea what LW^ means. Surface temperature is higher in summer because the days are longer and the sun in higher in the sky.
Ground surface albedo should not change much from 11 AM to 5PM; however many clouds disappear or become thinner during this interval, making the albedo of the earth (as seen from space) lower
Regarding your answers:
1. During which hours of the day is the earth's emitted radiation highest and why?
Your answer: "I think it is in the afternoon because of the increase in surface temperature."
Explanation: The correct answer to this question is actually during the afternoon and early evening hours (approximately 12 pm to 6 pm), as the Earth's emitted radiation, also known as longwave radiation (LW), reaches its peak during that time. This is because throughout the day, the Earth's surface absorbs solar radiation, which gradually warms the surface and the lower atmosphere. As a result, during the afternoon, the surface temperature is highest, causing more energy to be emitted as longwave radiation.
2. Why are values of LW^ higher in the summer than in the winter?
Your answer: "Is it because of the surface temperature."
Explanation: Your answer is partially correct. The values of longwave radiation (LW) are indeed higher in the summer compared to winter, primarily due to the difference in surface temperature. During the summer months, the Earth's surface receives more solar radiation, leading to an increase in surface temperature. This elevated temperature results in higher LW emissions. However, it is worth noting that other factors, such as atmospheric humidity and cloud cover, can also affect the LW values.
3. What makes the difference in surface albedo between 11:00 am and 5:00 pm?
Your answer: "Surface temperature and net radiation."
Explanation: The difference in surface albedo between 11:00 am and 5:00 pm is not primarily influenced by surface temperature and net radiation, but rather by the position of the sun in the sky. Surface albedo refers to the reflectivity of the Earth's surface, particularly to solar radiation. It varies depending on factors like the angle of the sunlight, the type of surface (land, water, ice, etc.), and the presence of vegetation or human structures.
Between 11:00 am and 5:00 pm, the sun's angle changes as it moves across the sky. Around noon (for most locations), the sun is typically at its highest position, leading to more direct and intense solar radiation. As a result, the surface albedo may be lower during this time compared to 5:00 pm when the sun is lower in the sky, causing the sunlight to have a more oblique angle of incidence.