Geography 355 – sam keen
Chapter 4: Mapping Density
Why map density?
Shows you were the highest concentration of landmarks/features are and are useful when mapping areas of different sizes. Mapping density is useful when mapping areas that vary in numbers.
Shade areas based on density value
Two ways to mapping density:
Chapter 5: Finding What’s Inside
Why map what’s inside?
“To monitor what’s occurring inside it, or to compare several areas based on what’s inside.”
Are you finding what’s inside a single area or each of several areas?
Discrete features within an area:
Information needed for analysis:
Three Ways to Find What’s Inside:
Metadata is information that describes specific features/items in ArcGIS.. When care is taken to provide good descriptions, you can find appropriate items with a search and evaluate which of the items in your search results is the correct one to use. In an item’s metadata you can then record whatever info is important for your audience to know about that item. This might include information about how accurate and recent the item is, restrictions associated with using and sharing the item, etc. Metadata is critical for sharing tools, data, and maps and for searching to see if the resources you need already exist. Any item in ArcCatalog, including folders and file types such as Word documents, can have metadata.
Delaware_2008 and 2010 Ponds and Lakes:
Delaware_ Census_ Tract:
Delaware_Economic Development Layers:
Delaware_Master Point Coverage:
Delaware_ Orthophoto _Detailed_2010:
Delaware_Places of Interest:
Delaware_Public Land Survey System:
Delaware_ Watersheds_ ODNR:
Delaware_ Woodland_ ODNR:
Ohio Wesleyan Parcels:
What Is GIS Analysis?
Understanding Geographic Features
Types of features:
Two ways of representing geographic features
*Check coordinate systems and map projections for each map layer and make sure they are they same.
Chapter 6: Finding Whats Nearby
Why map whats nearby?
Defining Whats Nearby
In GIS, once you find the features that are nearby, you can create a list of the addresses and then mark them on the map to show how nearby they are.
Three Ways of Finding Whats Nearby:
1.) Straight-Line Distance
2.) Distance or Cost Over a Network
3.) Cost or Surface
Chapter 7: Mapping Change
“People map what’s changed to anticipate future conditions, decide on a course of action, or to evaluate the results of an action or policy” (150).
Examples of mapping change
Defining Change in Maps:
The Geographic Features
The time pattern and time period being dealt with affects the geographic patterns you see on your map.
There are three types of time patterns
Three Ways of Mapping Change
My name is Sam Keen, and I am a Junior from Evergreen, Colorado. I enjoy skiing in the Winter and rafting in the Summer. With a very diverse landscape: from dessert in the south, plains in the East, and mountains in the West; there is a lot to map out in Colorado.
What interests me about this class is the many varieties in which GIS is used today. All sorts of companies use this software and I am excited to learn as much as possible this semester.
Colorado is a great state for GIS; Skiing is Colorado’s greatest attraction and the Rocky Mountains are the perfect backdrop. GIS has helped many of these resorts configure their layout and map out their trails. This interests me a lot and I am excited to learn more.
GIS software is like a blank book, or a painting before it is painted; layer by layer the creator or artist gets to choose what he or she wants to show on their map. From bodies of water, population, roads, hiking trails, natural resources, building plans, etc.
I researched some uses for GIS software and thousands of ideas popped up…
Who watches college basketball?
The Colorado Division of Water Resources provides a variety of Geographical Information System (GIS) and Mapping solutions, many of which are available for download or online viewing, free of charge.
GIS technology has been used in ‘conventional’ petroleum for many years and is now being used increasingly in the development of continuous ‘unconventional’ resource plays such as shale gas, shale oil and coal bed methane.
I also searched and found three real life examples of how some big corporations used GIS software to establish efficiency and another viewing experience within their line of work.