Create a Joomla 1.7 backend component that imports the data listed below as outlined. We currently have a table populated with zipcodes, lat and lon.
This document outlines the functionality needed to import Zip Code altitude data into our system.
i. Data Source: the zip code altitude data will be sourced from the program shown in this web site (accesses the USGS elevation data set): [url removed, login to view]
ii. The fields are explained in this web site: [url removed, login to view]
1. Latitude of zip code (Y value)
2. Longitude zip code (X value)
3. Altitude (return value, default units are feet)
iv. Batch Pre-Processing
1. The web site has a program which can be used to get the altitude (in feet) for any latitude or longitude in feet
2. Access the latitude and longitude for each zip (in our database) and return the altitude for that location
3. Check the range to insure the altitude is higher than -100 and lower than 22,000
v. Update Frequency and source
1. Every time the zip code lat/lon is updated
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