ArcGIS homework

i have attached worksheet 7 below
Requirements: the whole worksheet
Worksheet 7: Findings What’s Inside
Using features from one layer for selecting features in another layer is a powerful tool to find what properties are risked by pending hazards. In this exercise, you will practice the use of spatial queries and overlay analysis to decide what parcels are risked by the flood areas of water streams.
Learning Objectives:
Using location queries – Selecting features according to their spatial relationship to other features, which could be in another layer or in the same layer.
Understanding four types of spatial relationships: Distance, containment, intersection, and adjacency
Finding what’s inside by location queries.
Finding what’s inside by geometric overlays.
Creating reports.
Chapter 16 Selecting features by location.
Understanding “Select by location: dialogue.”
Read page 539—541 about location query. Understanding four types of spatial relationships: Distance, containment, intersection, and adjacency.
Handout:
(1.1) Exercise 16a Using Location Queries
In this exercise, you will work with parcels in a small town bordering a major river in Sonoma county, California. You are an emergency response analyst who has been asked to identify parcels in the town of Guerneville that may be at risk of flooding.
Follow steps 1-7. The goal here is to select land parcels from “Guerneville Parcels” layer that are impacted by the Russian River Flood Zones.
Describe your strategy
Show map (similar to step 7).
How many parcels are selected? ______________________
Assuming that you want to be more conservative and consider those parcels that are within 400 feet of the flood zone (see steps 8-10). Find out those parcels to be impacted by the potential flood.
Describe your strategy
Show map (similar to step 10).
How many parcels are selected? ______________________
Now, you would like to refine the selection to only those parcels that are mostly within the flood zone (steps 12-13).
Describe your strategy
Show map of selected parcels.
How many parcels are selected? ______________________
Now, you would like to limit your selection to those parcels that are completely within the flood zone. Show the dialog box “Select by Location” with all the parameters set properly.
After you apply the selection, Show map of selected parcels.
How many parcels are selected? ______________________
(1.2) Exercise 16b Combining Attribute and Location Queries
Find those parcels from “Guerneville Parcels” that are zoned residential and are affected by the Russian River Flood Zone (the tutorial steps 1-6.).
Describe your strategy
Show map
How many parcels are selected? ______________________

Create a new layer for the selected parcels and symbolize them with a red outline but no fill color

(1.3) [ON-YOUR-OWN]. Find out how many parcels are partially inside the flood zones.
i) Describe your strategy
ii) Show map.
How many parcels are partially inside the flood zones? __________________
The City of Oleander needs to assess the risk of those properties that are potentially impacted by the flood of a river that cuts across the city. A map of flood zones indicates the waterways and the areas that tend to have a chance of flooding every 100 years or 500 years. What would like to find out what properties that fall into those flood zones, and what are the total property values under risk.
2.1 In ArcMap, open the ex16e.mxd from Z:\GIS\Chapter16\. Open the attribute table of the parcels layer and the flood zone layer to understand the attributes. Notice that each parcel has a tax value for 2006, which will be used to indicate the property value. Create a map of those parcels that fall inside of 100-year flooding zones (either fully or partially).
Answer
Describe your strategies: (show the steps and dialogue boxes)
Show a map of your result, together with the 100-year flood zone highlighted.
How many parcels are impacted by 100-year flooding? ____________________
What is the total value of these parcels (use TaxVal06 as indicator)? ____________________
2.2 [ON-YOUR-OWN] Create a map of those parcels that are impacted by 500-year flood zones (majority of a parcel should be inside).
Answer
Describe your strategies: (show the steps and dialogue boxes)
Show a map of your result, together with the 500-year flood zone highlighted.
How many parcels are impacted by 500-year flood zones? ____________________
What is the total value of these parcels? ____________________
2.3 Conduct overlay analysis to find out the exact loss of value. Create a map of the INTERSECT overlay between parcels and flood zones. Show a map of your result, together with the attribute table. Create a summary of your result to find out how many parcels are within zone A, B, FW, respectively.
Answer
Describe your strategies: (show the steps and dialogue boxes)

Show the map

Show the attribute table of the overlay result
How many parcels are within zone A? _______________________
How many parcels are within zone B? _______________________
How many parcels are within zone FW? _______________________
2.4. Continue with the result of the Intersect. We would like to know what is the exact value of loss if a 100-year flooding happens. If a parcel is only partially inside the flood zone, we need to calculate the value of loss as proportion to the area affected.
Answer:
Describe your strategies: (show the steps and dialogue boxes)
What is the total value of loss if 100-year flooding happens? ______________

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