Global Warming Lab Report
Lab 4 Assignment
In carrying these lab experiments, I have learnt the skill of interpreting the various anomaly maps within the context of temperature variations. I have come to appreciate the essence changes in the latitudes across the world with respect to the zonal mean. It is through this study that I have learnt how compare and contrast various graphs of anomalies in various regions at different spans of time. Carrying out this experiments has allowed me understand why there are El-nino, in one part of the world while there is dry season in another.
The map below shows the temperature anomalies of warmest year of 2005
From the above map, the more dark red a region is, the hotter it is and the more anomalies in temperature. The more dark blue it is, the lower the temperature. The scale above is used to represent this happening. The next is the graph of latitude verses thezonal mean.
The graph above shows the latitude of each point on the earth with respect to the zonal mean at every point of the geographical world for 2005.
The next set of map and graph shows the temperature anomalies for 1998. Below map shows the distribution of temperature in global stance for the warmest year 1998.
From the above map, the red zones connote high temperatures while the blue areas connote those areas with low temperatures. The anomalies are seen in various areas especially in the tropical countries. The next is the graph of latitude verses the zonal mean.
The above graph shows the plotting of the latitude against the zonal means of the various regions across the world in line with the temperature anomalies in 1998.
Question 3: Comparison of The Maps
A closer look at the two maps, there are high temperatures anomalies towards the polar regions in 2005. On the other hand, in 1998, high temperatures are concentrated on the western continents like the USA and Europe. These discrepancies are attributed to the high levels of global warming that has been seen in these regions causing high levels of climate change on these regions. In 1998, there are numerous parts of the world which experience low temperatures of as low as -0.5. These regions include the arctic and the Antarctic circle. The regions beyond Europe and America like Australia also experienced low temperatures during 1998. Contrast to this notion, there are few cold areas of -0.5 degrees in 2005. This shows how the global warming has increased the global temperatures in these regions. It should also be noted that the rotational change in the temperature is dictated by the various positions that the earth assumed at every point in time as its rotates along its axis. One of the similarity between these two maps is that they are deemed to be having most of the parts of the world being 5 – 15 degrees Celsius as depicted by the yellow colors spread all over.
Question 4 Comparison of The Graphs
From the graphs at -90 degrees, the zonal mean for 2005 is higher than that of 1998. In fact, in the year 2005 it is recording a positive zonal meanwhile in 1998 it is recording a negative mean. One similarity that these graphs have is that from -90 to -72, their zonal means are moving towards 0.5. The graph for 1998 tends to assume a smoother trend in zonal mean across the latitudes. This is strengthened by the fact that these areas had not been adversely affected by many advents of global warming. It however important to note that in 2005, the trend was not smooth which was depicted by high levels of variations in the zonal means across the various latitudes.
From the graphs, the areas the exhibit more cooling are the arctic and the Antarctic circle regions. The low temperatures are experienced in these regions because of their low proximity with the sun. The areas with highest warming are the American continent regions and parts of Europe. High warming is experienced in these regions for the two years because of high industrialization in these two regions.