DRAWING-TEC
(Dense Regional And Worldwide INternational GNSS-TEC observation)
The purpose of Dense Regional And Worldwide INternational GNSS-TEC observation (DRAWING-TEC) project is to promote studies of ionospheric variations and their effect on GNSS among ionospheric researchers and GNSS researchers in the world.
The DRAWING-TEC project mainly consists of the three subprojects:
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1. Standardizing GNSS-TEC data for high-resolution TEC maps.
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2. Developing a new high-resolution TEC mapping technique using the standardized TEC data.
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3. Sharing the standardized TEC data and the data or the information of GNSS receiver network among the international ionosphere and GNSS researcher community.
As for the items 1, we have developed a new standardized TEC format, named as GNSS-TEC EXchange format (GTEX). GTEX format data describe slant TEC data for each GNSS satellite and are filed per day and per receiver, similar to the RINEX format, the standardized GPS format.
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