National Oceanic and Atmospheric Administration, United States Department of Commerce

Search - CORS


Data Description

    NOAA CLASS archive: Continuously Operating Reference Stations (CORS) - NOAA CLASS archive: Continuously Operating Reference Stations (CORS) - The National Geodetic Survey (NGS), an office of NOAA's National Ocean Service (NOS), coordinates a network of geodetic-quality CORS stations that provide Global Positioning System (GPS) carrier phase and code range measurements in support of 3-dimensional positioning activities throughout the United States and its territories. The positions of these CORS sites help define the National Spatial Reference System (NSRS). NGS defines and manages the NSRS - the framework for latitude, longitude, height, scale, gravity, orientation and shoreline throughout the U.S. The NSRS provides a consistent national coordinate system to support mapping, charting, navigation, boundary determination, property delineation, infrastructure development, resource evaluation surveys, and scientific applications. The CORS system enables positional accuracies that approach a few centimeters relative to the NSRS, both horizontally and vertically.<br/><br/> While every effort is made to retain data in the original at-sampling rate, there may be cases where only the 30-second decimated rate data exists. Data availability (note latency from present day) for RINEX data is archive start date on 1994:112 and current date at 32-days before present; for raw GPS data (selected sites) is archive start date on 2004:193 and current date at 5 days before present.

Notes


Temporal

(maximum range is 366 days)
Search by: Date Day of Year
Start Date
(format: YYYY-MM-DD)

Start Date
End Date
(format: YYYY-MM-DD)
End Date

Advanced Search

Datatype
Station Specific - Select Stations As Necessary
CORS Raw Data
Daily GNSS Observational File Data
Daily GNSS Observational Summary File
Daily Global Navigational File
Daily Meteorological Data File
Daily Site Log -- Current Format
Daily Site Log -- Historical Format


Station





to place large order without reviewing inventory or granule (file) metadata.
to place small order after reviewing inventory and granule metadata, including browse images when available.