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Zorluk: Çok zorLocation, Size, and Political Divisions of Africa

Two African capital cities, Accra (Ghana) located on the Greenwich Meridian (0∘0^\circ) and Mogadishu (Somalia) located at approximately 45∘E45^\circ\text{E}, are used to evaluate spatial and geopolitical positioning across the continent. If a live meteorological broadcast is transmitted from Accra at 08:00 AM local time, what is the corresponding local standard solar time in Mogadishu, and to which sub-regional economic bloc does Somalia belong?

  1. 11:00 AM, and Somalia is a member of the Intergovernmental Authority on Development (IGAD)Cevap
  2. B
    05:00 AM, and Somalia is a member of the Intergovernmental Authority on Development (IGAD)
  3. C
    11:00 AM, and Somalia is a member of the Economic Community of West African States (ECOWAS)
  4. D
    05:00 AM, and Somalia is a member of the Southern African Development Community (SADC)

Cevap

11:00 AM, and Somalia is a member of the Intergovernmental Authority on Development (IGAD)
The time difference between Accra (0∘0^\circ) and Mogadishu (45∘E45^\circ\text{E}) is 45∘×4 minutes=180 minutes45^\circ \times 4\text{ minutes} = 180\text{ minutes} (3 hours). Because Mogadishu is east of Accra, time is ahead, yielding 11:00 AM. Geopolitically, Somalia is located in the Horn of Africa and is a constituent member of the Intergovernmental Authority on Development (IGAD).

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1
Calculate the longitudinal difference between Accra and Mogadishu
Difference = 45∘E−0∘=45∘45^\circ\text{E} - 0^\circ = 45^\circ
Accra lies on the Prime Meridian (0∘0^\circ) and Mogadishu lies at 45∘E45^\circ\text{E}.
2
Convert longitudinal difference into time difference
45∘×4 minutes per degree=180 minutes=3 hours45^\circ \times 4\text{ minutes per degree} = 180\text{ minutes} = 3\text{ hours}
The Earth rotates 15∘15^\circ per hour (1∘1^\circ every 4 minutes).
3
Determine local solar time by applying the directional rule (East is ahead / add time)
Local time in Mogadishu = 08:00 AM + 3 hours = 11:00 AM
As one travels east from the Prime Meridian, local time gains (is ahead of GMT).
4
Identify the regional economic bloc for Somalia based on political divisions of Africa
Somalia belongs to the Intergovernmental Authority on Development (IGAD)
IGAD is the regional trade and development body for Horn of Africa states.

Anahtar Kavram

Longitudinal time calculation and sub-regional political groupings of Africa
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Konular

Location, Size, and Political Divisions of Africa

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