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This dataset includes gravity observations collected on the Coconino Plateau, Arizona, from 2015 to 2019 and reductions that were used to arrive at the gravity residual reported in the associated publication (Wildermuth, XXXX). Relative-gravity surveys were carried out using ZLS Burris relative-gravity meter. Absolute gravity values were taken from the closest NGS stations and relative-gravity differences were combined with nearby absolute gravity values using a least-squared network adjustment, as implemented in the software Gravnet (Hwang, C., Wang, C., Lee, L., 2002. Adjustment of relative gravity measurements using weighted and datum-free constraints. Comput. Geosci. 28, 1005–1015). Additional information about...
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We present a numeric grid containing estimates of the thickness of unconsolidated sediments for the western United States. Values for these grids were combined and integrated from previous studies or derived directly from gravity analyses. The grids are provided with 1-km grid-node spacing in WGS84 latitude-longitude coordinates. Detailed information regarding the derivation of these estimates is provided by Shah, A.K, and Boyd, O.S., 2018, Depth to basement and thickness of unconsolidated sediments for the western United States - Initial estimates for layers of the U.S. Geological Survey National Crustal Model: U.S. Geological Survey Open-File Report 2018-1115, https://doi.org/10.3133/ofr20181115.
The U.S. Geological Survey Southwest Gravity Program aims to provide high-precision time-lapse gravity (repeat microgravity) data for hydrologic studies in the southwestern US. Recent projects include monitoring recharge underneath ephemeral-stream channels, monitoring aquifer-storage change in unconfined and compressible aquifers, measuring preferential storage change at an artificial-recharge facility, and estimating specific yield through the correlation of gravity and water-level change in wells. Projects range in scale from the site-specific (individual recharge basins) to alluvial basin (e.g., the Tucson and Avra Valley groundwater basins). Southwest Gravity Program Data Releases Fact sheet about hydrologic...
Satellite gravimetric observations of monthly changes in continental water storage are compared with outputs from five climate models. All models qualitatively reproduce the global pattern of annual storage amplitude, and the seasonal cycle of global average storage is reproduced well, consistent with earlier studies. However, global average agreements mask systematic model biases in low latitudes. Seasonal extrema of low-latitude, hemispheric storage generally occur too early in the models, and model-specific errors in amplitude of the low-latitude annual variations are substantial. These errors are potentially explicable in terms of neglected or suboptimally parameterized water stores in the land models and precipitation...
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The depth of the basin beneath Frenchman Flat is estimatedusing a gravity inversion method.This dataset is distributed as an XYZ ASCII format data filegenerated from the 2002 gravity inversion model of the bedrockbeneath Frenchman Flat basin. Data forms a rectangular grid ofdata values in the defined projection. The data values are thedepth below the land surface,in meters, of the modeled locationof the Pre-Tertiary basement surface. The report whichaccompanies the data explains the modeling process and results.
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We present a numeric grid containing estimates of the depth to the pre-Cenozoic basement for the western United States. Values for these grids were combined and integrated from previous studies or derived directly from gravity analyses. The grids are provided with 1-km grid-node spacing in WGS84 latitude-longitude coordinates. Detailed information regarding the derivation of these estimates is provided by Shah, A.K. and Boyd, O.S., 2018, Depth to basement and thickness of unconsolidated sediments for the western United States - Initial estimates for layers of the U.S. Geological Survey National Crustal Model: U.S. Geological Survey Open-File Report 2018-1115, https://doi.org/10.3133/ofr20181115.
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This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
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Relative-gravity data and absolute-gravity data were collected in the Sierra Vista Subwatershed, Upper San Pedro Basin, Arizona, in May–June 2014 and 2015. Data from 2014 and a description of the survey network were published in USGS Open-File Report 2015–1086. Data presented in the shapefile here are the following: (1) Network-adjusted values from 2015, (2) Gravity change from 2014 to 2015, and (3) Survey-grade coordinates obtained from a Global Positioning System (GPS) survey in 2015. 2015 data and network adjustment results are presented in Kennedy, J.R., 2016, Gravity change from 2014 to 2015, Sierra Vista Subwatershed, Upper San Pedro Basin, Arizona: U.S. Geological Survey Open–File Report 2016–1155, 15...
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This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
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This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
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Regional geophysical maps of the Great Basin, USA were generated from new and existing sources to support ongoing efforts to characterize geothermal resource potential in the western US. These include: (1) a provisional regional gravity grid that was produced from data compiled from multiple sources: data collected by the USGS and Utah Geological Survey under various projects, industry sources, and regional compilations derived from two sources: a Nevada state-wide database (Ponce, 1997), and a public domain dataset (Hildenbrand et al., 2002), (2) a regional magnetic grid derived from the North American magnetic compilation map of Bankey et al. (2002) and, (3) a regional depth-to-basement grid derived from Shaw...
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This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
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Seismic hazard assessments depend on an accurate prediction of ground motion, which in turn depends on a base knowledge of three-dimensional variations in density, seismic velocity, and attenuation. The datasets here are components of a National Crustal Model that couples geologic characteristics and geophysical parameters using a physical theoretical foundation combined with measured data for calibration. The model is intended to be internally consistent and seamless on a national scale; care is also taken to maximize consistency with existing regional models. An initial version of the model components are defined for the western U.S. on a 1-km grid. While the current focus of this effort is on improving estimates...


    map background search result map search result map Gravity inversion model of Frenchman Flat basin, Nevada Test Site, Nevada USGS Southwest Gravity Program Gravity Change from 2014 to 2015, Sierra Vista Subwatershed, Upper San Pedro Basin, Arizona FSA 10:1 NAIP Imagery m_4009411_ne_15_1_20150824_20151103 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4009411_nw_15_1_20150824_20151103 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4009411_se_15_1_20150824_20151103 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4009411_sw_15_1_20150824_20151103 3.75 x 3.75 minute JPEG2000 from The National Map USGS 1:24000-scale Quadrangle for Gravity, IA 1980 Components of the USGS National Crustal Model Thickness of unconsolidated sediments for the USGS National Crustal Model Depth to Mesozoic basement for the USGS National Crustal Model Bouguer Gravity Anomaly Map of Bangladesh (grav8bg) Data from "Gravity surveys for estimating possible width of enhanced porosity zones across structures on the Coconino Plateau, Coconino County, North-Central Arizona." Regional geophysical maps of the Great Basin, USA FSA 10:1 NAIP Imagery m_4009411_ne_15_1_20150824_20151103 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4009411_nw_15_1_20150824_20151103 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4009411_se_15_1_20150824_20151103 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4009411_sw_15_1_20150824_20151103 3.75 x 3.75 minute JPEG2000 from The National Map USGS 1:24000-scale Quadrangle for Gravity, IA 1980 Data from "Gravity surveys for estimating possible width of enhanced porosity zones across structures on the Coconino Plateau, Coconino County, North-Central Arizona." Gravity Change from 2014 to 2015, Sierra Vista Subwatershed, Upper San Pedro Basin, Arizona Gravity inversion model of Frenchman Flat basin, Nevada Test Site, Nevada USGS Southwest Gravity Program Bouguer Gravity Anomaly Map of Bangladesh (grav8bg) Regional geophysical maps of the Great Basin, USA Depth to Mesozoic basement for the USGS National Crustal Model Thickness of unconsolidated sediments for the USGS National Crustal Model Components of the USGS National Crustal Model