Data from "Accounting for time- and space-varying changes in the gravity field to improve the network adjustment of relative-gravity data"
Summary
In spring 2013, three relative-gravity campaigns were carried out on a network of 72 stations at the Southern Avra Valley Storage and Recovery Project operated by the City of Tucson. The first campaign, with 259 relative-gravity observations, took place in early February when all basins were flooded (approximately 2-m head) and actively recharging. The second campaign, with 231 relative-gravity observations, began 22 days after the basin inflows were turned off; the basins dry within 2 to 3 days after inflow stops. The third campaign, with 218 relative-gravity observations, began 27 days after the second campaign began. Absolute gravity was observed at eight stations using an A-10 absolute gravimeter (Micro-g Lacoste, Inc.). In addition, [...]
Summary
In spring 2013, three relative-gravity campaigns were carried out on a network of 72 stations at the Southern Avra Valley Storage and Recovery Project operated by the City of Tucson. The first campaign, with 259 relative-gravity observations, took place in early February when all basins were flooded (approximately 2-m head) and actively recharging. The second campaign, with 231 relative-gravity observations, began 22 days after the basin inflows were turned off; the basins dry within 2 to 3 days after inflow stops. The third campaign, with 218 relative-gravity observations, began 27 days after the second campaign began. Absolute gravity was observed at eight stations using an A-10 absolute gravimeter (Micro-g Lacoste, Inc.). In addition, continuous data were recorded at two sites adjacent to the recharge basins (co-located with absolute-gravity observations) using a combination of iGrav superconducting gravimeters and gPhone gravimeters (GWR, Instruments, Inc. and Micro-g Lacoste, Inc.).
