Week 5 Assignment 10 and 11

Assignment 10:

1. Opening the map, layers toggled on.

Click Me

Layers Toggled off.

2.

World imagery turned back on and showing dropdown and initials as title.

Showing Ala Moana Shopping Center rooftop parking lot. Pixels in the source image cover a ground distance of 0.30 Meters.

Accuracy: Objects are displayed in this image are within 4.06 meters of true location.

3. Q: Describe the elevation that can be seen globally.

A: The elevation that can be seen globally is 0 - 4 miles on O'ahu.

4. Q2: For each of the vector layers, list the type of vector (polygon, point, line) and two attributes from their tables.

Layer	Vector Type	Attribute	Attribute
World Countries	Polygon	Country Name	ISO Code
World Cities	Point	City Name	Population
World Rivers	Line	Name	Scale rank

World Countries:

Show countries as polygons. Displays name, ISO code, continent, land type, and land rank.

World Cities:

Shows cities as points and size of point based off of population.

World rivers:

Shows rivers as lines. Shows river name and scale rank.

Q3: What cities have been identified?

A3: Pierre, Moscow, and Washington DC.

Assessment:

1.

I used a polygon layer for countries and a point layer for cities.

Location	Provider	Resolution	Accuracy
Oahu, Hawaii	Earthstar geographics	15 meters	12 meters
Shanghai, China	Maxar	0.60 Meters	5.00 meters
Oslo, Norway	Earthstar	15 meters	12 meters
Abu Dhabi, UAE	Earthstar	15 meters	12 meteres
Washington, DC	Maxar	0.50 meters	5 meters

3. What objects can be seen at the lowest resolution?

- 15 meters: outlines of cities, roads, forests, general landscape.

- 60 CM: Individual houses, streets and even some vehicles.

- 30 CM: Same as 60 CM but with more objects coming into view

Reflection: I was just a little confused on the initial layering, however the uses of polygons, lines, and points do a really good job on maps to display landscape and human movement. Digital mapping with imagery from space really does a lot of good work in detailing how accurate maps can be. For resolutions to be so clear to the point we can see individual vehicles and streets for landscapes sure does prove to be a valuable tool for all of us.

Assignment 10:

Shows Cholera cases by address.

Location of water pumps shown and heat map created. The epicenter where the cholera outbreak started was from the 50 Broadwick Street pump.

London Cholera Epidemic 1854 Story Map:

https://storymaps.arcgis.com/stories/4d59fb496b8349f09cbdaf079a36144b

Assessment:

For the 48 contiguous states, its seems most of covid's spread as around the coasts and the mainly for the eastern half of the country. It makes a lot of sense since most of the major cities in the US run along the east and western coasts. The states in the western portion of the country are also not as populated as the eastern side of the country which can explain the differences between each half.

Reflection:

Overall, I've felt I've learned an important tool on understanding how epidemiologists map the spread of diseases and their expression in large countries. It definitely puts into perspective how sophisticated disease mapping has become with the use of technology.