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Question

Difficulty: EasyNavigation and Cartography

Although Marshall Islands stick charts represent complex maritime environments, they were not carried on board during open-ocean voyages. How were these charts primarily utilized by Marshallese mariners?

  1. They were studied on land prior to departure to commit swell patterns and pathways to memory.Answer
  2. B
    They were used on board during voyages as literal, scaled topographic maps of the ocean floor.
  3. C
    They were mounted to the outrigger of the canoe to actively measure current speed and wind direction.
  4. D
    They were held up to the night sky while at sea to function as physical templates for celestial navigation.

Answer

They were studied on land prior to departure to commit swell patterns and pathways to memory.
The correct answer is correct because Marshall Islands stick charts were not carried at sea due to their fragility and the requirement that a navigator internalize the information. Instead, navigators used them on land before voyaging to study and memorize the wave patterns and relative positions of islands.

Step-by-Step Solution

1
Analyze the functional context of Marshallese stick charts.
Identify that these charts were constructed from coconut fiber and shells, which are delicate and prone to water damage.
This helps narrow down whether the charts were physically used on vessels or kept on land.
2
Differentiate between a literal topographic map and a conceptual memory aid.
Understand that stick charts represent ocean swells (currents) and island locations conceptually to assist a navigator's mental mapping, rather than serving as literal, scale-drawn navigation tools used during a voyage.
This confirms the primary utilization as a pre-voyage mnemonic training aid.

Key Concept

Marshall Islands stick charts functioned as pre-voyage mnemonic devices to map ocean swells and island locations rather than active, on-board navigation maps.

Hints

1
Consider the durability of palm fiber and cowrie shells in rough ocean water.

Practice More

Review how the materials of the stick charts (like shells and palm sticks) represent different features of the ocean.
Estimated Time:45s
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Topics

Navigation and Cartography

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