Name: CTA 5009-A – Fast and Readable Geographical Hashing
Brand: Consumer Technology Association
SKU: CTA 5009-A
Availability: InStock

CTA 5009-A

Current Revision

Fast and Readable Geographical Hashing

Best Price Guarantee Jun 1, 2024 English 27 Pages

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CTA 5009-A

Geographical hashes (“Geohashes”) are short strings of letters and digits that identify a specific region. Longer Geohashes represent smaller regions and shorter Geohashes represent larger regions. In particular, a Geohash that is the prefix of a second longer Geohash represents a region that encloses the region represented by the second. Geohashes are often used to identify locations by describing a region that encloses the location, including any uncertainty associated with the location data. A location with very large uncertainty would be represented with a short Geohash. A very long Geohash can represent a location very precisely. A Geohash always describes a region bounded by two lines of longitude and two lines of latitude. The physical distance between lines of latitude decreases near the poles, so the amount of physical space described by a Geohash of a given length will vary depending on its location. Geohashes that describe regions near the equator will describe larger areas than Geohashes of the same length that describe regions near the poles.

CTA 5009-A

Fast and Readable Geographical Hashing

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