Introduction To Geographic Information Science - Part 4

Q1. Using the Output from The Tabulate Area Tool, What Is the Total Area of Property Parcels in Km2(a) at Risk from Sea Level Rise and Coastal Flooding? and (b) that Is Not at Risk (note the Unit of The Maps Are in Metres)

A: NEW YORK = 21.075606km2 BRONX = 25.221554km2

B: NEW YORK = 32.4840287km2 BRONX = 65.749048km2

Q2. How Many Properties (a) Are at Risk (b) Are Not at Risk

A: NEW YORK = 5855 BRONX = 7407

B: NEW YORK = 36783 BRONX = 82353

Q3. List All the Steps in Logical Order for Calculating the Areas from The Beginning to Step C Above

Merging two Parcels New York and Bronx

Mosaicking two raster dem into a new raster

Projecting the mosaicked dem into to parcel coordinate systems

Reclassify the projected raster into areas of less then 4.9m and More than 4.9m. They are classified as 0 and 1 respectively. Tabulate area to give summary of each class.

Convert raster to polygon and intersect and finally

Select by attribute each county and create a layer, go to Maximim_gridcode field for each and calculate summary. The results will be number of properties at risk and not at risk in the two counties.

Remember, at the center of any academic work, lies clarity and evidence. Should you need further assistance, do look up to our Geography Assignment Help

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