Question

You have acquired the following data layers:

1. Parcels: polygon feature class; California State Plane Coordinate System (NAD83, feet) [note: Los Angeles is in zone 5]
2. L.A. River: line feature class; NAD83
3. Parks: polygon feature class;UTMZone11N(WGS84,meters)
4. Census block groups: polygon feature class; Lambert conformal conic (NAD83, feet)

Question: What coordinate system would you use for all data layers, and what steps would you need to perform to ensure all coordinate systems matched?

Answer 1

We will be using the geographic coordinate system for all the data layers to represent the coordinate of the all the layers because the Geographic Coordinate Systems (GCS) usually have decimal degree units that determine longitude degrees (x-coordinates) and latitude degrees (y-coordinates). The position of the data is expressed as positive or negative numbers: positive x- and y-values for the primary meridian north of the equator and east, and negative values for the primary meridian south of the equator and west. We can ensure that all the coordinate systems match as the all the layers can be represented using the longitudnal and latitudnal aspects of their location and they can be verified for their layers by their latitudnal and longitudnal values and we will be using the vertical coordingate system as well to ensure to include the sea level reference of the location to include height of the layers .