Cities Of Mexico: 2.8 million global cities database with latitude and longitude coordinates on CD-ROM - contains Cities Of Mexico data.
Cities Of Mexico sample data, Cities Of Mexico downloads, and Cities Of Mexico datasets available online.
Cities Of Mexico - for more information about Cities Of Mexico, please see Cities Of Mexico in the Global Cities databases with latitude, longitude and distance calculations. Contains Cities Of Mexico, officially recognized place names, physical locations, geographical coordinates, administrative regions, countries and additional information. Cities Of Mexico list includes places where people live and work such as cities, towns, and villages.
GPS Global Positioning System
The GPS concept of operation is based upon satellite ranging. Users figure their position on the earth by measuring their distance from the group of satellites in space. The satellites act as precise reference points
Each GPS satellite transmits an accurate position and time signal. The user's receiver measures the time delay for the signal to reach the receiver, which is the direct measure of the apparent range to the satellite. Measurements collected simultaneously from four satellites are processed to solve for the three dimensions of position, velocity and time.
Gazetteer
Pronounced " gazitr".
A gazetteer is an alphabetical listing of place names, political divisions, and physical features of the Earth. Entries include such items as cities, countries, rivers, and mountains and give some descriptive or statistical information about each item.
FIPS – Federal Information Processing Standard
For more information on FIPS codes, please see our US City State ZIP Code database. Our US City State ZIP Codes database contains listings for FIPS codes for all counties within the United States.
Distance Calculation: Included is a Windows DLL component that calculates global distances between any two points. Easy to install and simple to use, it works with all Windows-based programming languages. A $49.95 value included for FREE!
Product Features:
- Comprehensive list: Over 2,8 million entries
- Complete list of 270+ countries and territories and more than 4,400 regions
- Geographical locations in latitude and longitude coordinates for all entries
- Calculate global distances
- Standardize user input
- Most accurate and timely source of data
Water features: Geographical databases of natural and artificial water features from around the world.
Water feature database products available from MeridianWorldData.com include:
- Straits. Includes straits.
- Streams. Includes arroyos, bars, bends, deltas, distributaries, fords, levees, rapids, streams, stream banks, weirs, and whirlpools and more.
- Swamps. Includes bogs, guts, marshes, moors, quicksand, salt marshes, swamps, wetlands and more.
- Wadi. Includes wadi.
- Wells. Includes falls, over falls, sinkholes, waterfalls, waterholes, wells, and whirlpools.
Distance calculation formula:
If you need greater accuracy, you must use the exact distance calculation. The exact distance calculation requires use of spherical geometry, since the Earth is a sphere. The exact distance calculation also requires a high level of floating point mathematical accuracy - about 15 digits of accuracy (sometimes called "double-precision"). Many computer languages