Question

Question was provided via image upload.

Explanation:

Identify missing source data

The worksheet asks to complete an analysis chart (Part B) and explain choices (Part C) based on "the graphs above." However, the climate graphs for "City A" and "City B" are not visible in the image. We must define the criteria for analyzing these climates and explain the general differences between maritime and continental climates to address Part D fully, while providing a conditional framework for Parts B and C.

Define climate classification criteria

To distinguish between continental and maritime climates in Canada, climatologists use specific thresholds:

• Temperature Range: Continental climates typically have a temperature range (maximum mean monthly temperature minus minimum mean monthly temperature) greater than \(25^\circ\text{C}\). Maritime climates have a temperature range less than \(25^\circ\text{C}\).
• Total Precipitation: Continental climates generally receive less than \(1000\text{ mm}\) of precipitation annually. Maritime climates receive more than \(1000\text{ mm}\) annually.
• Season of Maximum Precipitation: Continental climates often experience a summer maximum (due to convectional precipitation). Maritime climates typically experience a winter maximum (due to relief/cyclonic precipitation).

Analyze climate differences (Part D)

Maritime climates are heavily influenced by nearby large bodies of water (oceans). Water has a high specific heat capacity, meaning it heats up and cools down slowly. This moderates the temperature of adjacent land, resulting in mild winters, cool summers, and a small annual temperature range. It also provides a constant source of moisture, leading to high annual precipitation, especially in winter when coastal winds are strongest.

Continental climates are located far inland, away from the moderating influence of oceans. Land has a low specific heat capacity, heating up and cooling down rapidly. This results in extreme temperatures (very hot summers, very cold winters) and a large annual temperature range. Precipitation is lower overall and peaks in summer due to daytime heating causing convection.

Formulate conditional answers for B and C

Since the specific data for City A and City B is missing, we will provide the standard diagnostic rules so that any set of graphs can be solved:

• If a city has a temperature range \(< 25^\circ\text{C}\), precipitation \(\ge 1000\text{ mm}\) with a winter peak, it is Maritime (e.g., Vancouver, Halifax).
• If a city has a temperature range \(\ge 25^\circ\text{C}\), precipitation \(< 1000\text{ mm}\) with a summer peak, it is Continental (e.g., Winnipeg, Regina).

Answer:

Question B & C (Analysis Framework)

Because the climate graphs for City A and City B are cut off at the top of the image, use the following standard Canadian climate rules to complete your table and explanation:

• Temperature Range (Max Temp - Min Temp):
• If the range is less than \(25^\circ\text{C}\), it indicates a Maritime climate.
• If the range is \(25^\circ\text{C}\) or greater, it indicates a Continental climate.
• Total Annual Precipitation:
• Maritime: Typically over \(1000\text{ mm}\).
• Continental: Typically under \(1000\text{ mm}\).
• Season of Maximum Precipitation:
• Maritime: Winter maximum (due to coastal low-pressure systems).
• Continental: Summer maximum (due to inland convectional rain).
• Example Regions:
• Maritime Cities: Vancouver (West Coast / Western Cordillera), Halifax (Appalachian region).
• Continental Cities: Winnipeg (Plains / Interior Plains), Regina (Plains).

---

Question D

Differences between Maritime and Continental Climates:

1. Temperature Range:

• Maritime climates have cool summers, mild winters, and a small annual temperature range (less than \(25^\circ\text{C}\)).
• Continental climates have hot summers, extremely cold winters, and a large annual temperature range (greater than \(25^\circ\text{C}\)).

1. Precipitation:

• Maritime climates receive high annual precipitation (often over \(1000\text{ mm}\)), with most of it falling during the winter months.
• Continental climates receive lower annual precipitation (often under \(1000\text{ mm}\)), with a peak during the summer months.

Why these differences exist:
These differences are caused by the moderating influence of large bodies of water (the ocean) versus large landmasses:

• Water has a high specific heat capacity, meaning it heats up and cools down very slowly. Winds blowing off the ocean keep coastal (maritime) areas relatively warm in winter and cool in summer.
• Land heats up and cools down very quickly. Inland (continental) areas far from the ocean experience rapid temperature shifts, leading to extreme seasonal highs and lows.