DEM stands for digital elevation model. A DEM map shows the vertical characteristics of the mapped area. It is a form of remote sensing.
Friday, August 8, 2008
Continuously Variable Proportional Circle Map
DOQQ
Lorenz Curve
Cartographic Animation
DRG
Isotach Map
Isobars
Stem and Leaf Plot
This is a very simple map of a stem and leaf plot. This particular stem and leaf plot maps out grades on a particular test. It is important that there was a bell-shaped curve with regards to the test grades because it shows they were distributed fairly. Teachers often look for this kind of curve when grading work.
LIDAR Image
Correlation Matrix
Star Plot
Planimetric Map
Cadastral Map
Thematic Map
A thematic map breaks down certain characteristics of an area, such as it's population, religion, or in this case, undeveloped land in Hawaii, and shows us the details on a map of the said area. You can see how all land that is undeveloped in Hawaii is broken down into different categories and mapped by color and design.
Topographic Map
Population Profile
Climograph
A climograph shows pricipitation levels on the same scale that it shows temperature. This particular climograph is from Memphis, Tennessee, which is where I happened to be born. The climograph is broken down by month. You can see which months had the highest temperatures and shich had the most rainfall and compare the two.
Propaganda Map
Dot Distribution Map
This dot distribution map shows the distribution of the population of the United States according to the 2000 Census. Each dot on map represents 7500 people. Dot distribution maps provide a scale (1 dot:7500 people) and illustrate this information for us so we can see the distribution of the data (population of US). It is interesting to see how many more dots are located on the eastern side of the US.
Doppler Radar Image
This is a doppler radar image of Hurrican Frances taken in 2004. The range on the side and corresponsing colors on the map represent dBZ or the display of echo intensity or reflectivity, which is how doppler radar interprets and measures data. The most intense parts of this hurricane are where the yellow, orange, and red hues are located.
Infrared Aerial Photo
Above is a high altitude infrared aerial photograph of the Susquehanna Water Gap to the North of Harrisburg, Pennsylvania taken from a NASA aircraft in 1974. This map is significant to me
as my family is from the Harrisburg area and I can identify with the river and roadways portrayed. Red areas usually indicate vegetation and in this case, wheat fields. Clean water will show up as a very dark, almost black tone, as you can see in the river.
Thursday, August 7, 2008
Box Plot
A box plot is a way of mapping data in an easy to interpret form that allows the viewer to easily compare the variables. This map demonstrates stopping distances for three different kinds of motor vehicles. Design C take the longest distance to stop with A & B being comparable. However, B's median stopping distance is lower than A's.
Statistical Map
This is a map showing statistical data regarding our upcoming election. The red states represent Republican majority, the blue states Democratic and the off-white Undecided. The numbers within the states represent the number of electoral votes that state is worth. Sttaiscal maps break down data and show us the distribution in an easy to intrepret format.
Cartogram
A cartogram is a thematic map where certain aspects are distorted to demonstrate a the value of something. This is a cartogram of the population of the continental US by county. You can see how distored the map has gotten; it is barely recognizable aside from the inlaid guidelines. If you look specifically at the counties in Florida, a state we know well, you can see which couties have the highest population concentration.
Scatterplot
This type of map is known as a scatterplot. This particular scatterplot shows the correlation between ages of husbands and wives. There is a fairly consistant relationship between the two. There is a very strong relationship in the early years and as the subjects get older the plot gets a little more scattered showing greater difference in age.
Windrose
Mental Map
Black and White Aerial Photo
Friday, June 27, 2008
Week 7 Assignment - KML File
The following is an image of Sichuan, China following the May 12th earthquake that had a magnitude of 7.9 on the Richter Scale. The type of remote sensing data we are viewing is an arial photo with photographic film that has a black and white emulsion. The website where I aquired this image which I then downloaded as a KML file is: http://google-latlong.blogspot.com/2008/05/imagery-for-sichuan-china-earthquake.html.
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