On a hypsometric map each color represents an amount of elevation above or below a baseline. Some hypsometric maps include the contour lines of elevation, while others omit them. Some maps, like the one above, use shading so that there is not a distinct break between each color and the elevation is conveyed in a more fluid manner. Generally, green represents the lowest elevation, then up to yellow and tan and brown, with white at the top. This map shows a hypsometric color scheme for an area of Washington state. I choose this map because Washington state is my second home and I love the different elevations of this area.
Monday, April 15, 2013
Doppler Radar
DDoppler radar is a tool that makes use of the doppler effect to track objects at a distance. This type of technology is most commonly used in meteorology; more specifically used in tracking storms for immediate relay of information. Doppler radar allows us to pick up a storms size and speed; it can give us this information even days before it hits and area, but usually these early of readings are not accurate. The doppler radar shown above shows the size and speed of Hurricane Ivan before it hit the Gulf coast. The colors represent the intensity of the storm with red being the strongest and green being the lightest part of the storm.
Isobars
Isobars are an interesting tool that weather forecasters use to determine atmospheric pressure. These bars show atmospheric pressures at a certain time and level. The distances between each isobar is equal. If isobars are very close together like the ones in the south of France are in this map, then there is going to be a low pressure system moving in, meaning there is going to be stormy weather. I choose this map because I took a Physical Geography class one semester and really enjoyed how to read these types of maps.
Histogram
A histogram is a graphical display of a distribution of data, shown as rectangles. Each rectangle is erected over a certain interval with equal area to the frequency of the interval. The height of the rectangle is also correlated to the frequency density of another interval. This histogram here shows the frequency of a number and the arrivals per minute. I choose this histogram because I thought it was interesting to show the different colored rectangles.
Box Plot
A box plot can also by known as a box diagram. It is an easy way to graphically depict groups of numerical data through their 5 number summaries. In this box plot the Q4 reads about 125 and the lower Q1 reads about 30. These are the annual snow depths at Mathsville Ski Resort. I choose this box plot because it is very basic but still shows a true box diagram.
Stem and Leaf Plot
A Stem and Leaf Plot is a frequency diagram in which the raw data is displayed together with its frequency. The data is then placed in suitable groups. I choose this stem and leaf plot because I thought it was very easy to read. Stem and Leaf plots are an important map to learn how to read because you will see them in any industry.
Correlation Matrix
A Correlation Matrix is a kind of map that shows relationships between different types of variables. It uses quantitative data and theory to make this kind of map. Another interesting fact about correlation matrixes is that there are set rules and steps on how to read them. This correlation matrix map shows the relationship between tissues. I choose this correlation matrix because I am very interesting in different types of cancers and how they correlate to each other.
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