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Surface Met Data

A subset of GPS/GNSS sites that UNAVCO handles have a meteorological system — a "met pack" — attached to the GPS/GNSS receiver at these sites to record near-surface atmospheric measurements. When possible, UNAVCO makes these co-located tropospheric measurements available along with the GPS/GNSS observation data.

Use the GPS/GNSS Data Archive Interface (DAI) to show sites with surface meteorological data — then to get met data files, perform, in order, on the DAI:

  • Select your locations and time period,
  • click on Search,
  • when the search is complete, click on Add files and check Met (and perhaps also uncheck Hatanaka),
  • then click on Add to cart.

Met data are made available as RINEX meteorological data files (see e.g. Table A5, A6, and A9 for RINEX 2.11). These include time of observation (in GPS time and met observables such as temperature, relative humidity, and atmospheric pressure. Daily RINEX met files can also be downloaded directly from the FTP surface met data directory; see also GPS/GNSS FTP Server Layout for more details.

Last modified: Tuesday, 15-Nov-2016 14:29:39 UTC

 

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