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Repeat microgravity data from Phoenix, Arizona, 2020-2023
This dataset represents the network-adjusted results of relative- and absolute-gravity surveys performed from 2020 to 2023 in and near the city of Phoenix, Arizona. Relative surveys were done using a Zero Length Spring, Inc. Burris relative-gravity meter. Absolute-gravity surveys were done using a Micro-g LaCoste, Inc. A-10 absolute-gravity meter. The effect of solid Earth tides and ocean loading were removed from the data prior to network adjustment. Non-linear instrument drift was removed by evaluating gravity change during repeated measurements at one or more base stations. Vertical gradients between the relative- and absolute-gravity meters were measured at each station where both types of measurement were collected to correlate the measurements of the two instruments. Vertical gradients were measured using a relative-gravity meter and tripod set to the height of the absolute-gravity meter. Relative-gravity differences and absolute-gravity data were combined using least-squares network adjustment, as implemented in the software GSadjust (https://code.usgs.gov/sgp/gsadjust). Data are provided for 105 stations collected over 4 discrete, annual surveys.
Author(s) |
Jeffrey R Kennedy |
Publication Date | 2024-12-20 |
Beginning Date of Data | 2020-01-27 |
Ending Date of Data | 2023-02-08 |
Data Contact | |
DOI | https://doi.org/10.5066/P96Q1OZG |
Citation | Kennedy, J.R., 2024, Repeat microgravity data from Phoenix, Arizona, 2020-2023: U.S. Geological Survey data release, https://doi.org/10.5066/P96Q1OZG. |
Metadata Contact | |
Metadata Date | 2024-12-20 |
Related Publication | Loading... |
Citations of these data | Loading https://doi.org/10.3133/sir20245120 |
Access | public |
License | http://www.usa.gov/publicdomain/label/1.0/ |
Harvest Date: 2025-01-07T16:23:15.254Z