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mainframe computer, which was mostly used by banks
trend continues, the temperature of the Korean Peninsula
and conglomerates. Supercomputers were also introduced
in the late 21st century will be 2.9 to 4.7 degrees higher
in Korea in the 1990s, but in 2010 they did not perform
than the current level. The reason Korea’s climate change
well. So two new supercomputers were introduced in
is especially severe is because the mid-latitude is often
2011 and used until 2016. At the end of 2015, the KMA
abnormal due to global warming. As greenhouse gas
brought in supercomputer No. 4 for 55 billion won (about
emissions have increased, Arctic temperatures have risen,
US $47 million). Despite the tens of billion won needed
and the jet stream has weakened, making it easier for
for purchase, maintenance and processing costs, the KMA
cold air in the north to descend to the mid-latitude. This
has introduced a new supercomputer which costs about 40
phenomenon is the cause of severe downpours and the
billion won (about US $34 million). every five years, since
longer-than-expectedrainyseasonthissummer.Duetothe
2000 for weather accuracy. Despite this huge investment
high temperature of the North Pole and high atmospheric
in meteorological equipment, problems arise due to poor
pressure, cold air stayed around Korea for a long time,
utilizationofthesetechnologicalresources.
which caused the rainy season to be longer because warm
and humid air did not move to northward. The more
extreme this climate phenomenon becomes, the more
Cause
difficultitistopredicttheflowoftheatmosphere,resulting
inweathererrors.
Geographicalcharacteristicsandabnormalclimate
ofKorea
PoornumericalforecastmodelinKorea
T h e Ko r e a n
W hile many
News
ⓒKMA
Peninsula is located
developed countries
ⓒYonhap
in the mid-latitude
have their own
region, where the
weather forecast
energy imbalance
models, Korea did
is large due to
not have a local
the temperature
weather forecast
difference between
until recently. So,
cold air in the polar
the KMA used the
▲TheKoreanPeninsulaisgettinghotter
regions and hot air
Japanese model
duetoabnormalclimate.
▲Therouteofthe13thtyphoon‘Ringling’
in the equator. Moreover, since it is on the border between
from 2002 to 2010
predictedbyKoreaIntegratedModel(KIM)
the continent and the ocean, it is more volatile due to the
and the British
andUKModel(UM).
influence of both sides. In addition, it is more difficult to
model from 2010 to 2019. But there are many problems
predict the weather on the Korean Peninsula because the
in terms of geography. Unlike Korea, which has a lot of
Korean Peninsula is bordered on three sides by the sea;
climate change, the British climate is almost the same as
and there are many mountain ranges. From the beginning,
the West Coast oceanic climate. In addition, the west is
Koreahaslimitationsinimprovingtheaccuracyofweather
important in weather conditions as air moves from west
forecasts.
to east because of the rotation of the earth. But west of
South Korea’s extreme climate change is adding
England is the sea and west of Korea is a continent. In
complexity to this. According to the “Korea Climate
addition, it failed to accurately reflect Korea’s topography
Change Evaluation Report 2020” published by the
and weather characteristics as it was a foreign technology,
Ministry of Environment and the Korea Meteorological
andtherewerealsofataldisadvantagesofnotbeingableto
Administration in July, the average surface temperature
upgradetheforecastmodelasrequired.
of Korea rose 1.8 degrees Celsius from 1912 to 2017. This
Regarding the reduced accuracy of weather forecasting
is more than double the
after the introduction of KIM, a KMA official said, “The
ⓒKIAPS
world’s average increase
KIM has not reduced the accuracy of weather forecasting.
(0.85 degrees). According
It’s not a weather model problem; it’s a forecasters’
tothereport,ifthecurrent
decision. In addition, KIM was introduced earlier this
▲KIAPSthatdevelopledKIMKorea
greenhouse gas emission
year, so it is too early to judge performance. At least a
IntegratedModel(KIM).
20
www.theargus.org
mainframe computer, which was mostly used by banks
trend continues, the temperature of the Korean Peninsula
and conglomerates. Supercomputers were also introduced
in the late 21st century will be 2.9 to 4.7 degrees higher
in Korea in the 1990s, but in 2010 they did not perform
than the current level. The reason Korea’s climate change
well. So two new supercomputers were introduced in
is especially severe is because the mid-latitude is often
2011 and used until 2016. At the end of 2015, the KMA
abnormal due to global warming. As greenhouse gas
brought in supercomputer No. 4 for 55 billion won (about
emissions have increased, Arctic temperatures have risen,
US $47 million). Despite the tens of billion won needed
and the jet stream has weakened, making it easier for
for purchase, maintenance and processing costs, the KMA
cold air in the north to descend to the mid-latitude. This
has introduced a new supercomputer which costs about 40
phenomenon is the cause of severe downpours and the
billion won (about US $34 million). every five years, since
longer-than-expectedrainyseasonthissummer.Duetothe
2000 for weather accuracy. Despite this huge investment
high temperature of the North Pole and high atmospheric
in meteorological equipment, problems arise due to poor
pressure, cold air stayed around Korea for a long time,
utilizationofthesetechnologicalresources.
which caused the rainy season to be longer because warm
and humid air did not move to northward. The more
extreme this climate phenomenon becomes, the more
Cause
difficultitistopredicttheflowoftheatmosphere,resulting
inweathererrors.
Geographicalcharacteristicsandabnormalclimate
ofKorea
PoornumericalforecastmodelinKorea
T h e Ko r e a n
W hile many
News
ⓒKMA
Peninsula is located
developed countries
ⓒYonhap
in the mid-latitude
have their own
region, where the
weather forecast
energy imbalance
models, Korea did
is large due to
not have a local
the temperature
weather forecast
difference between
until recently. So,
cold air in the polar
the KMA used the
▲TheKoreanPeninsulaisgettinghotter
regions and hot air
Japanese model
duetoabnormalclimate.
▲Therouteofthe13thtyphoon‘Ringling’
in the equator. Moreover, since it is on the border between
from 2002 to 2010
predictedbyKoreaIntegratedModel(KIM)
the continent and the ocean, it is more volatile due to the
and the British
andUKModel(UM).
influence of both sides. In addition, it is more difficult to
model from 2010 to 2019. But there are many problems
predict the weather on the Korean Peninsula because the
in terms of geography. Unlike Korea, which has a lot of
Korean Peninsula is bordered on three sides by the sea;
climate change, the British climate is almost the same as
and there are many mountain ranges. From the beginning,
the West Coast oceanic climate. In addition, the west is
Koreahaslimitationsinimprovingtheaccuracyofweather
important in weather conditions as air moves from west
forecasts.
to east because of the rotation of the earth. But west of
South Korea’s extreme climate change is adding
England is the sea and west of Korea is a continent. In
complexity to this. According to the “Korea Climate
addition, it failed to accurately reflect Korea’s topography
Change Evaluation Report 2020” published by the
and weather characteristics as it was a foreign technology,
Ministry of Environment and the Korea Meteorological
andtherewerealsofataldisadvantagesofnotbeingableto
Administration in July, the average surface temperature
upgradetheforecastmodelasrequired.
of Korea rose 1.8 degrees Celsius from 1912 to 2017. This
Regarding the reduced accuracy of weather forecasting
is more than double the
after the introduction of KIM, a KMA official said, “The
ⓒKIAPS
world’s average increase
KIM has not reduced the accuracy of weather forecasting.
(0.85 degrees). According
It’s not a weather model problem; it’s a forecasters’
tothereport,ifthecurrent
decision. In addition, KIM was introduced earlier this
▲KIAPSthatdevelopledKIMKorea
greenhouse gas emission
year, so it is too early to judge performance. At least a
IntegratedModel(KIM).
20
www.theargus.org
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