Coordinates: 90°0′0″N 0°0′0″E / 90.00000°N
0.00000°E / 90.00000; 0.00000
Northern Hemisphere shaded blue. The hemispheres appear to be unequal
in this image due to
Antarctica not being shown, but in reality are
the same size.
Northern Hemisphere from above the
Northern Hemisphere is the half of
Earth that is north of the
Equator. For other planets in the Solar System, north is defined as
being in the same celestial hemisphere relative to the invariable
plane of the solar system as Earth's
Owing to the Earth's axial tilt, winter in the Northern Hemisphere
lasts from the December solstice (typically December 21 UTC) to
March equinox (typically March 20 UTC), while summer lasts
from the June solstice (typically June 21 UTC) through to the
September equinox (typically September 23 UTC). The dates vary
each year due to the difference between the calendar year and the
Its surface is 60.7% water, compared with 80.9% water in the case of
the Southern Hemisphere, and it contains 67.3% of Earth's land.
1 Geography and climate
3 List of continents
4 See also
6 External links
Geography and climate
The Arctic is the region north of the Arctic Circle. Its climate is
characterized by cold winters and cool summers. Precipitation mostly
comes in the form of snow. The Arctic experiences some days in summer
when the Sun never sets, and some days during the winter when it never
rises. The duration of these phases varies from one day for locations
right on the
Arctic Circle to several months near the
which is the middle of the Northern Hemisphere.
Arctic Circle and the
Tropic of Cancer
Tropic of Cancer lies the Northern
temperate zone. The changes in these regions between summer and winter
are generally mild, rather than extreme hot or cold. However, a
temperate climate can have very unpredictable weather.
Tropical regions (between the
Tropic of Cancer
Tropic of Cancer and the Equator) are
generally hot all year round and tend to experience a rainy season
during the summer months, and a dry season during the winter months.
In the Northern Hemisphere, objects moving across or above the surface
Earth tend to turn to the right because of the coriolis effect.
As a result, large-scale horizontal flows of air or water tend to form
clockwise-turning gyres. These are best seen in ocean circulation
patterns in the
North Atlantic and
North Pacific oceans.
For the same reason, flows of air down toward the northern surface of
Earth tend to spread across the surface in a clockwise pattern.
Thus, clockwise air circulation is characteristic of high pressure
weather cells in the Northern Hemisphere. Conversely, air rising from
the northern surface of the
Earth (creating a region of low pressure)
tends to draw air toward it in a counterclockwise pattern. Hurricanes
and tropical storms (massive low-pressure systems) spin
counter-clockwise in the Northern Hemisphere.
The shadow of a sundial moves clockwise in the Northern Hemisphere
(opposite of the Southern Hemisphere). During the day, the Sun tends
to rise to its maximum at a southerly position except between the
Tropic of Cancer
Tropic of Cancer and the Equator, where the sun can be seen to the
north, directly overhead, or to the south at noon dependent on the
time of year.
When viewed from the Northern Hemisphere, the
Moon appears inverted
compared to a view from the Southern Hemisphere. The
faces away from the galactic center of the Milky Way. This results in
Milky Way being sparser and dimmer in the Northern Hemisphere
compared to the Southern Hemisphere, making the Northern Hemisphere
more suitable for deep-space observation, as it is not "blinded" by
the Milky Way.
Northern Hemisphere is home to approximately 6.57 billion people
which is around 90% of the earth's total human population of 7.3
List of continents
All of continental Europe
Central America and the Caribbean
The vast majority of Asia, except part of Maritime Southeast Asia
(which straddles the Equator)
About 2⁄3 of Africa, just above the “horn”
About 1⁄10 of South America, north of the mouth of the Amazon
^ Report of the IAU Working Group on cartographic coordinates and
rotational elements: 2009
^ Life on Earth: A - G.. 1. ABC-CLIO. 2002. p. 528.
ISBN 9781576072868. Retrieved 8 September 2016.
^ Laura Spitler. "Does the
Moon look different in the northern and
southern hemispheres? (Beginner) - Curious About Astronomy? Ask an
Astronomer". cornell.edu. Retrieved 10 November 2015.
^ "Perspective of the
Moon from the Northern and Southern
Hemispheres". Retrieved 22 October 2013.
^ "90% Of People Live In The
Northern Hemisphere - Business Insider".
Business Insider. 4 May 2012. Retrieved 10 November 2015.
^ "GIC - Article". galegroup.com. Retrieved 10 November 2015.
Media related to
Northern Hemisphere at Wikimedia Commons
Hemispheres of Earth
Book:Hemispheres of Earth
Commons:Maps of E