AndreaBozzo/ceres-open-data-index huggingface dataset:
Hawaiian Islands Terrain Corrected Free Air Anomalies (96)

This 2' gravity anomaly grid for the Principal Hawaiian Islands is NOT the input data set used in development of the GEOID96 model. This gravity grid models the 61,000 terrestrial and marine gravity data held in the National Geodetic Survey gravity data base in July 1996. The data used in this grid have NOT been augmented by gravity data contributions from NGA (former National Imagery and Mapping Agency (former Defence Mapping Agency)). Please note that the GEOID96 model itself does contain the NGA (former National Imagery and Mapping Agency) contributions. These gravity values are based on the International Gravity Standardization Net 1971 (IGSN71). Terrain corrected, atmospherically corrected, Bouguer anomalies were computed with respect to the Geodetic Reference System 1980 (GRS80) using NAD83 and NAVD88 coordinates. Terrain corrections were computed by an FFT method from 6" digital elevation data. These complete Bouguer anomalies were gridded by splines in tension. The free air anomaly grid was obtained by restoring the Bouguer plate with a 2' mean elevation grid. Additional information is available at: http://www.ngs.noaa.gov/GEOID/geoid.html

Tags: absolute gravity, bouguer gravity, continent, control surveys, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth science, free air anomaly, geodetics/gravity, gravitational field, gravity, gridded gravity, hawaii, hawaiian islands, icsu-wds, international council for science - world data system, land gravity, national centers for environmental information, national geophysical data center, nesdis, noaa, north america, north and central america, observed gravity, oceania, reference systems, satellite orbits, solid earth, u.s. department of commerce, united states, united states of america
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Hawaiian Islands North-South Deflections (DEFLEC96)

This 2' surface deflection of the vertical grid for the Principal Hawaiian Islands is the DEFLEC96 model. The computation used about 61,000 terrestrial and marine gravity data held in the National Geodetic Survey gravity data base in July 1996. These data were augmented by gravity data contributions from NGA (former National Imagery and Mapping Agency (former Defence Mapping Agency)). The deflections were obtained by numerical differentiation of cubic spline models along the meridians of the GEOID96 grid. The gravity values are based on the International Gravity Standardization Net 1971 (IGSN71). The deflections are referred to the Geodetic Reference System 1980 (GRS80) ellipsoidal normals. The curvature of the plumb line correction has been applied. We are particularly grateful to NGA (former National Imagery and Mapping Agency) for their assistance and their data contributions.

Tags: absolute gravity, bouguer gravity, continent, control surveys, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth science, free air anomaly, geodetics/gravity, gravitational field, gravity, gridded gravity, hawaii, hawaiian islands, icsu-wds, international council for science - world data system, land gravity, national centers for environmental information, national geophysical data center, nesdis, noaa, north america, north and central america, observed gravity, oceania, reference systems, satellite orbits, solid earth, u.s. department of commerce, united states, united states of america
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Alaska Gravity Data per 2 x 4 min Cell (96)

This 2' x 4' gravity density grid for Alaska displays the distribution of about 1.1 million terrestrial and marine gravity data held in the National Geodetic Survey gravity data base in July 1996. These data were augmented by gravity data contributions from NGA (former National Imagery and Mapping Agency (former Defence Mapping Agency)) and by satellite altimeter-derived marine gravity anomalies computed by Sandwell and Smith (1996). The values show the number of gravity data contained in a given 2' x 4' cell. Additional information is available at http://www.ngs.noaa.gov/GEOID/geoid.htmlWe are particularly grateful to NGA (former National Imagery and Mapping Agency) for their assistance and their data contributions.

Tags: absolute gravity, alaska, bouguer gravity, continent, control surveys, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth science, free air anomaly, geodetics/gravity, gravitational field, gravity, gridded gravity, icsu-wds, international council for science - world data system, land gravity, national centers for environmental information, national geophysical data center, nesdis, noaa, north america, observed gravity, reference systems, satellite orbits, solid earth, u.s. department of commerce, united states of america
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Gravity Data for California and Southern Nevada

The gravity data (88,514 records) were compiled largely from a state-wide regional gravity study program organized by the California Division of Mines and Geology in cooperation with the U.S. Geological Survey in Menlo Park, California. The data base was received in February 1983. Principal gravity parameters include Free-air Anomalies and Simple Bouguer Anomalies (no terrain correction applied). The observed gravity values are referenced to the International Gravity Standardization Net 1971 (IGSN 71). The gravity anomaly computation uses the Geodetic Reference System 1967 (GRS 67) theoretical gravity formula. The data are randomly distributed within the boundaries of California with a few stations in Southern Nevada.

Tags: absolute gravity, bouguer gravity, california, continent, control surveys, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth science, free air anomaly, geodetics/gravity, gravity, gridded gravity, icsu-wds, international council for science - world data system, land gravity, national centers for environmental information, national geophysical data center, nesdis, nevada, noaa, north america, observed gravity, ocean crust deformation, reference systems, satellite orbits, solid earth, u.s. department of commerce, united states of america
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Wisconsin Gravity Data for the Marshfield Area

The gravity station data (8388 records) were compiled by Professor Ervin. This data base was received in April 1993. Principal gravity parameters include Free-Air Anomalies and Simple Bouguer Anomalies. Terrain corrections have also been computed. The observed gravity values are referenced to the International Gravity Standardization Net 1971 (IGSN 71). The gravity anomaly computation uses the Geodetic Reference System 1967 (GRS 67) theoretical gravity formula. The data are randomly distributed within the area of central Wisconsin between 44 and 45 degrees north latitude.

Tags: absolute gravity, bouguer gravity, control surveys, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth science, free air anomaly, geodetics/gravity, gravitational field, gravity, gridded gravity, icsu-wds, international council for science - world data system, land gravity, marshfield, national centers for environmental information, national geophysical data center, nesdis, noaa, north and central america, observed gravity, reference systems, satellite orbits, solid earth, u.s. department of commerce, united states, wisconsin, wood
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
NGS Gravity Network Data for the U.S.

The gravity network data (7,298 records) were gathered by various governmental organizations (and academia) using a variety of methods.

Tags: absolute gravity, bouguer gravity, continent, control surveys, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth science, free air anomaly, geodetics/gravity, gravitational field, gravity, gridded gravity, icsu-wds, international council for science - world data system, land gravity, national centers for environmental information, national geophysical data center, nesdis, noaa, north america, observed gravity, reference systems, satellite orbits, solid earth, u.s. department of commerce, united states of america
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Northern Oklahoma Gravity Data

The gravity station data (710 records) were compiled by Professor Ahern. This data base was received in June 1992. Principal gravity parameters include latitude, longitude, elevation, and observed gravity. The data are randomly distributed within northern Oklahoma.

Tags: absolute gravity, bouguer gravity, continent, control surveys, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth science, free air anomaly, geodetics/gravity, gravitational field, gravity, gridded gravity, icsu-wds, international council for science - world data system, land gravity, national centers for environmental information, national geophysical data center, nesdis, noaa, north america, observed gravity, oklahoma, reference systems, satellite orbits, solid earth, u.s. department of commerce, united states of america
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
U.S. Geoid Heights (GEOID96)

This 2' geoid height grid for the conterminous United States is the GEOID96 model. The computation used about 1.8 million terrestrial and marine gravity data held in the National Geodetic Survey gravity data base in July 1996. These data were augmented by gravity data contributions from NGA (former National Imagery and Mapping Agency (former Defence Mapping Agency)). By means of a Fast Fourier Transform (FFT) technique, high frequency corrections were made to an underlying EGM96 geopotential model through a remove, compute, and restore process. The gravity values are based on the International Gravity Standardization Net 1971 (IGSN71). The geoid heights are referred to the Geodetic Reference System 1980 (GRS80) ellipsoid. GEOID96 incorporates the reference system relationship between NAD 83(86) and ITRF94(1996.0), the datum offset of NAVD 88, and the contributions from 2951 GPS on leveled benchmarks. Additional information is available at http://www.ngs.noaa.gov/GEOID/geoid.htmlWe are particularly grateful to NGA (former National Imagery and Mapping Agency) for their assistance and their data contributions.

Tags: absolute gravity, bouguer gravity, continent, control surveys, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth science, free air anomaly, geodetics/gravity, gravitational field, gravity, gridded gravity, icsu-wds, international council for science - world data system, land gravity, national centers for environmental information, national geophysical data center, nesdis, noaa, north america, observed gravity, reference systems, satellite orbits, solid earth, u.s. department of commerce, united states of america
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
1-deg x 1-deg Terrestrial Mean Free-Air Anomalies

The 1x1 degree Terrestrial Mean Free-Air Gravity Anomaly and Geoid Undulations Data Base was compiled and developed by the Ohio State University. This data base was received in March 1993. Principal gravity parameters include mean elevation, mean free-air anomaly and source id. The gravity anomaly computation uses the Geodetic Reference System 1967 (GRS 67) theoretical formula. The data are global in coverage where data are available.

Tags: absolute gravity, bouguer gravity, control surveys, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth science, free air anomaly, geodetics/gravity, global, gravitational field, gravity, gridded gravity, icsu-wds, international council for science - world data system, land gravity, national centers for environmental information, national geophysical data center, nesdis, noaa, north america, observed gravity, reference systems, satellite orbits, solid earth, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Hawaiian Islands East-West Deflections (DEFLEC96)

This 2' surface deflection of the vertical grid for the Principal Hawaiian Islands is the DEFLEC96 model. The computation used about 61,000 terrestrial and marine gravity data held in the National Geodetic Survey gravity data base in July 1996. These data were augmented by gravity data contributions from NGA (former National Imagery and Mapping Agency (former Defence Mapping Agency)). The deflections were obtained by numerical differentiation of cubic spline models along the parallels of the GEOID96 grid. The gravity values are based on the International Gravity Standardization Net 1971 (IGSN71). The deflections are referred to the Geodetic Reference System 1980 (GRS80) ellipsoidal normals. The curvature of the plumb line correction has been applied. We are particularly grateful to NGA (former National Imagery and Mapping Agency) for their assistance and their data contributions.

Tags: absolute gravity, bouguer gravity, continent, control surveys, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth science, free air anomaly, geodetics/gravity, gravitational field, gravity, gridded gravity, hawaii, hawaiian islands, icsu-wds, international council for science - world data system, land gravity, national centers for environmental information, national geophysical data center, nesdis, noaa, north america, north and central america, observed gravity, oceania, reference systems, satellite orbits, solid earth, u.s. department of commerce, united states, united states of america
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Land and Marine Gravity Data on CD-ROM - 1999 Edition

The Land and Marine Gravity 1999 Edition 2-volume CD-ROM set contains observed and derived land and marine gravity data contributed by many national and international organizations, from both the academic and government sectors. Approximately 70 percent of the data are observed values--regional station data collections (separated primarily by contributors) and absolute gravity measurements. Grids and other derived summary data sets represent another 30 percent of the data. In general, data record parameters include Latitude, Longitude, Observed Gravity and Elevation, Bouguer Gravity Anomaly (land), and Free- air Anomaly (ocean). In all cases, each data set contains associated documentation, including source contributor. Data are in binary format with ancillary files for conversion of the data to ASCII. On the Land Gravity CD- ROM, data sets are grouped into directories based on type: Absolute, Grids, Regional, Global, and Correlative (Geoids). The Marine Gravity CD-ROM has gravity data from 1,555 ocean surveys grouped by regional location of the survey. Directories exist for the Gulf of Mexico and Caribbean Sea, Indian Ocean, Mediterranean and Black Seas, North Pacific, South Pacific, North Atlantic and South Atlantic. Surveys which cross ocean areas are included in both regional directories. The marine gravity data were collected from ships operated between the years 1961 and 1996. The Marine gravity surveys are provided in a modified MGD77 format containing survey location, observed gravity and free air-anomaly. The 1999 Edition of Gravity Data is Year 2000 compliant. All date values are full 4-digit years. The GeoVu geophysical data browse and visualization software is also Year 2000 compliant. The compliance is inherent because there are no built-in date manipulation routines. However, GeoVu is written to run on specific platforms and operating systems. There is no guarantee that GeoVu will operate on platforms other than those indicated in the Software documentation.

Tags: absolute, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth science, geodetics/gravity, geophysical fields, global, gravity, gravity field, grids, icsu-wds, international council for science - world data system, national centers for environmental information, national geophysical data center, nesdis, noaa, north america, observed, reference systems, satellite orbits, solid earth, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Gravity Station Data for Portugal

The gravity station data total 3064 records. This data base was received in April 1997. Principal gravity parameters include Free-air Anomalies which have been adjusted to the International Gravity Standardization Net 1971 (IGSN 71), and the gravity anomaly computation uses the Geodetic Reference System 1980 (GRS80) theoretical gravity formula. The data are randomly distributed within the boundaries of Portugal.

Tags: absolute gravity, bouguer gravity, continent, control surveys, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth science, europe, free air anomaly, geodetics/gravity, gravitational field, gravity, gridded gravity, icsu-wds, international council for science - world data system, land gravity, national centers for environmental information, national geophysical data center, nesdis, noaa, observed gravity, portugal, reference systems, satellite orbits, solid earth, u.s. department of commerce, western europe
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Gravity Data For Colombia 1997

The gravity station data (9,050 records), were observed and processed by the Instituto Geografico Agustin Codazzi(IGAC), in Colombia from 1958 to 1996. This data base was received in April, 1997. Principal gravity parameters include Free-air anomalies and both Simple and Complete Bouguer anomalies. The gravity anomaly values were computed using the GRS80 ellipsoid.

Tags: absolute gravity, bouguer gravity, colombia, continent, control surveys, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth science, free air anomaly, geodetics/gravity, gravitational field, gravity, gridded gravity, icsu-wds, international council for science - world data system, land gravity, national centers for environmental information, national geophysical data center, nesdis, noaa, observed gravity, reference systems, satellite orbits, solid earth, south america, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Gravity Data for Southwestern Alaska (1294 records compiled)

The gravity station data (1294 records) were compiled by the Alaska Geological Survey and the U.S. Geological Survey, Menlo Park, California. This data base was received in September 1986. Principal gravity parameters include Free-air Anomalies and Simple Bouguer Anomalies (no terrain correction applied) and topographic elevations to compute the anomalies. The observed gravity values are referenced to the International Gravity Standardization Net 1971 (IGSN 71). The gravity anomaly computation uses the Geodetic Reference System 1967 (GRS 67) theoretical gravity formula. The data are randomly distributed within the boundaries of central Alaska.

Tags: absolute gravity, alaska, bouguer gravity, continent, control surveys, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth science, free air anomaly, geodetics/gravity, gravitational field, gravity, gridded gravity, icsu-wds, international council for science - world data system, land gravity, national centers for environmental information, national geophysical data center, nesdis, noaa, north america, observed gravity, reference systems, satellite orbits, solid earth, u.s. department of commerce, united states of america
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
DMA Antarctic Gravity Data

The gravity station data (65,164 records) were gathered by various governmental organizations (and academia) using a variety of methods. The data base was received in August, 1993. Principal gravity parameters include Free-air Anomalies and Simple Bouguer Anomalies (no terrain correction applied). The observed gravity values are referenced to the International Gravity Standardization Net 1971 (IGSN 71). The gravity anomaly computation uses the Geodetic Reference System 1967 (GRS 67) theoretical gravity formula. The data are randomly distributed south of 50 degrees South.

Tags: absolute gravity, antarctica, bouguer gravity, control surveys, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth science, free air anomaly, geodetics/gravity, gravitational field, gravity, gridded gravity, icsu-wds, international council for science - world data system, land gravity, national centers for environmental information, national geophysical data center, nesdis, noaa, observed gravity, reference systems, satellite orbits, solid earth, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Project Magnet 1996

Project Magnet data include low altitude, high density individual track line surveys, high altitude vector data and regional magnetic anomaly grids.

Tags: doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, national centers for environmental information, national geophysical data center, nesdis, noaa, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Alaska Terrain Corrected Free Air Anomalies (96)

This 2' x 4' gravity anomaly grid for Alaska is NOT the input data set used in development of the GEOID96 model. This gravity grid models the 1.1 million terrestrial and marine gravity data held in the National Geodetic Survey gravity data base in July 1996. The data used in this grid have NOT been augmented by gravity data contributions from NGA (former National Imagery and Mapping Agency (former Defence Mapping Agency)). Please note that the GEOID96 model itself does contain the NGA (former National Imagery and Mapping Agency) contributions. These gravity values are based on the International Gravity Standardization Net 1971 (IGSN71). Terrain corrected, atmospherically corrected, Bouguer anomalies were computed with respect to the Geodetic Reference System 1980 (GRS80) using NAD83 and NAVD88 coordinates. Terrain corrections were computed by an FFT method from 30" x 60" digital elevation data. These complete Bouguer anomalies were gridded by splines in tension. The free air anomaly grid was obtained by restoring the Bouguer plate with a 2' x 4' mean elevation grid. Additional information is available at: http://www.ngs.noaa.gov/GEOID/geoid.html

Tags: absolute gravity, alaska, bouguer gravity, continent, control surveys, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth science, free air anomaly, geodetics/gravity, gravitational field, gravity, gridded gravity, icsu-wds, international council for science - world data system, land gravity, national centers for environmental information, national geophysical data center, nesdis, noaa, north america, observed gravity, reference systems, satellite orbits, solid earth, u.s. department of commerce, united states of america
Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Gravity Data for Egypt

The gravity station data (71 records) were gathered by various governmental organizations (and academia) using a variety of methods. This data base was received in March 1989. Principal gravity parameters include Free-air Anomalies and Simple Bouguer Anomalies (no terrain correction applied). The observed gravity values are referenced to the International Gravity Standardization Net 1971 (IGSN 71) and the gravity anomaly computation uses the Geodetic Reference System 1967 (GRS 67) theoretical gravity formula. The spatial resolution of the data is randomly distributed within the boundaries of Egypt.

Tags: absolute gravity, africa, bouguer gravity, continent, control surveys, doc/noaa/nesdis/ncei, doc/noaa/nesdis/ngdc, earth science, egypt, free air anomaly, geodetics/gravity, gravitational field, gravity, gridded gravity, icsu-wds, international council for science - world data system, land gravity, national centers for environmental information, national geophysical data center, nesdis, noaa, northern africa, observed gravity, reference systems, satellite orbits, solid earth, u.s. department of commerce
Organization: National Oceanic and Atmospheric Administration, Department of Commerce