When do polar day and polar night appear in the Antarctic and the Arctic? Where do polar day and polar night appear?

In the high latitudes of Antarctica, there is no "sunrise and sunset" life rhythm, and there is no 24-hour day and night cycle. Polar day and polar night are natural phenomena unique to the polar circle. When do polar day and polar night appear in the Antarctic and the Arctic? How does the range of polar day and polar night change? Let's enter our scientific exploration session today!

Contents of this article

1. When do polar day and polar night appear in the Antarctic and the Arctic?

2. Where do polar day and polar night occur?

3. How does the range of polar day and night change?

4. Where do polar day and polar night phenomena occur?

When do polar day and polar night appear in Antarctica?

1. There is polar day in the Arctic region from the vernal equinox to the autumnal equinox. The polar day phenomenon will gradually expand from the North Pole to the summer solstice, and the area where the polar day phenomenon occurs will gradually decrease from the summer solstice to the autumnal equinox.

2. There is polar night in the Antarctic region from the vernal equinox to the autumnal equinox. The polar night from the vernal equinox to the summer solstice will gradually expand from the South Pole outward, and the area where the polar night occurs from the summer solstice to the autumnal equinox will gradually decrease.

3. There is polar night in the Arctic region from the autumnal equinox to the vernal equinox. The polar night from the autumnal equinox to the winter solstice will gradually expand from the South Pole outward, and the area where the polar night occurs from the winter solstice to the vernal equinox will gradually decrease.

4. In the Antarctic region, the polar day phenomenon from the autumnal equinox to the winter solstice will gradually expand from the South Pole outward, and the area where the polar day phenomenon occurs from the winter solstice to the vernal equinox will gradually decrease.

Where do polar day and polar night occur?

The phenomenon of polar day and polar night occurs within the polar circles at the north and south poles of the earth. That is, in the polar regions with latitudes higher than 66°34′. The areas with polar day and polar night are the Arctic Circle and the areas to the north and the Antarctic Circle and the areas to the south, that is, the northern and southern frigid zones. Norway, Sweden, Finland, Russia, the United States, Canada, and the Dominion of Greenland (under the jurisdiction of Denmark) can all see polar day and polar night in the areas within the Arctic Circle.

Polar day and polar night are natural phenomena in the polar regions of the earth. Polar day means that the sun never sets and the sky is always bright. This phenomenon is also called white night. Polar night means the opposite of polar day. The sun never comes out and the sky is always dark. In the high latitudes of Antarctica, there is no "sunrise and sunset" life rhythm, and there is no 24-hour day and night cycle. Polar day and polar night are natural phenomena unique to the polar circle. They occur within 66 degrees 34 minutes north latitude of the Arctic Circle and within 66 degrees 34 minutes south latitude of the Antarctic Circle.

How does the range of polar day and night change?

1. After the vernal equinox, polar night will occur near the South Pole, and the scope of the polar night will become larger and larger thereafter.

2. It reaches its maximum on the summer solstice, with its boundary reaching the Antarctic Circle.

3. After the summer solstice, the range of polar night near the South Pole gradually shrinks, and shrinks to 0 on the autumnal equinox.

4. After the autumnal equinox, polar night appears near the North Pole, and then the range of polar night near the North Pole becomes larger and larger.

5. It reaches its maximum on the winter solstice, with the boundary reaching the Arctic Circle. After the winter solstice, the range of polar night near the North Pole gradually shrinks, shrinking to zero on the vernal equinox. This cycle repeats itself, and its cycle is a tropical year.

Where do polar day and polar night phenomena occur?

Polar day and polar night both occur in the Arctic Circle and the Antarctic Circle of the Earth. Polar day: Polar day will occur at the pole where the sun is directly above the hemisphere. After the spring equinox every year, polar day will appear near the North Pole, and will disappear completely on the autumnal equinox. After the autumnal equinox, polar day will begin to appear near the South Pole, and will disappear completely on the spring equinox. Polar night: If the sun is directly above the northern hemisphere, polar night will occur from the polar circle to the pole in the southern hemisphere, and vice versa. After the spring equinox, polar night will appear near the South Pole, and will shrink to zero on the autumnal equinox; after the autumnal equinox, polar night will appear near the North Pole, and will shrink to zero on the spring equinox.

The specific occurrence of polar day and polar night

1. Polar day in the Arctic Circle and polar night in the Antarctic Circle occur in the summer in the northern hemisphere.

2. Polar night in the Arctic Circle and polar day in the Antarctic Circle occur in the winter in the northern hemisphere.

3. Polar day in the Arctic Circle and polar night in the Antarctic Circle occur in the winter in the southern hemisphere.

4. The polar night in the Arctic Circle and the polar day in the Antarctic Circle occur in the summer in the southern hemisphere.