Consider map sheet 92 G/6. Look at the contours around the UBC campus (around 830570). Also look at the contours around Grouse Mountain (945704).

If they had used the 83 C/3 contour interval, what would the result have been?

Question

Consider map sheet 92 G/6.  Look at the contours around the UBC campus (around 830570).   Also look at the contours around Grouse Mountain (945704).

If they had used the 83 C/3 contour interval, what would the result have been?

BlackTom AI · Accepted Answer

The task presents a map-reading scenario: examining map sheet 92 G/6, focusing on contour details around UBC campus (approx 830570) and Grouse Mountain (approx 945704), and considering what would happen if a different contour interval (83 C/3) had been used.

Option provided: "Too little detail at UBC and too few lines to make Grouse Mountain area useful."

Analysis of the (only) option without other choices:
- First, consider the general principle: using a coarser contour interval (larger distances between contour lines) typically reduces the amount of detail in a topographic map. Features near the UBC site could appear with fewer contour lines, potentially masking small changes in elevation and making precise interpretation harder. This supports the part of the statement that there would be too little detail at UBC.
- Next, apply the same logic to Grouse Mountain. A coarse interval would yield fewer contour lines over a given area, which can render the topographic relief less informative and may indeed make local features less useful for detailed analysis. This aligns with the portion of the option suggesting there would be too few lines to make the Grouse Mountain area useful.
- However, there are important qualifiers: the statement assumes that the level of usefulness is primarily dictated by the density of contour lines, and it presumes that the coarser interval would render the Grouse Mountain area unusable or notably less useful. In practice, usefulness also depends on what you need from the map (hiking, planning, drainage, watershed, etc.). A coarser interval might still be adequate for broad planning, while being problematic for fine-scale tasks.
- The lack of provided answer options makes it difficult to weigh this option against alternatives such as: a) contour lines becoming too sparse to interpret major features, b) certain elevation ranges being omitted entirely, or c) the general trend that both areas would lose detail but perhaps not to the same degree.
- From a reasoning standpoint, the claim about UBC having too little detail and Grouse Mountain having too few lines is consistent with the intuitive effect of increasing contour interval. Yet the absolute judgment of “too little detail” or “too few lines” is context-dependent and may not universally hold for every map-reading goal.
- Since there are no alternative options to compare against, we cannot assess relative correctness or falsity in a multi-choice sense. The single stated outcome hinges on the assumption that contour density directly governs usefulness for both locations, which is plausible but not absolute. 
- In summary, the option correctly reflects the general effect of increasing contour interval (reduced detail and fewer lines), but its assertion about usefulness is contingent on the task at hand and the scale at which the map is used. The lack of additional choices prevents a definitive evaluation of correctness in a multiple-choice sense.

GEOG 103-PTS2-在线实验室 3

Consider map sheet 92 G/6. Look at the contours around the UBC campus (around 830570). Also look at the contours around Grouse Mountain (945704). If they had used the 83 C/3 contour interval, what would the result have been?

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GEOG 103-PTS2-在线 实验室 3