Campaign GPS measurements on the Island of Hawaiʻi collected by the Hawaiian Volcano Observatory in 2021

This release includes data collected during campaign GPS surveys at Kīlauea and Mauna Loa Volcanoes on the Island of Hawaiʻi in 2021. It includes data from a total of 63 sites occupied from January 1 to December 31, 2021. For each site, we include its measured raw data in daily files, Receiver INdependent EXchange (RINEX) files for each day, field log sheet(s), and associated metadata information. We also include a few days of data at the end of 2020 at 3 longer-term campaign sites at Kīlauea’s summit. These sites (109Y, NDDB, OVRL) were deployed in late December 2020 in response to the December 20, 2020, Kīlauea summit eruption. The authors thank USGS Hawaiian Volcano Observatory staff, volunteers, and collaborators for helping collect [...]