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Federal
NGS Survey Control Map 242 recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
The NGS Survey Control Map provides a map of the US which allows you to find and display geodetic survey control points stored in the database of the National... -
Federal
Global Volcano Locations Database 22 recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
NCEI maintains a database of over 1,500 volcano locations obtained from the Smithsonian Institution Global Volcanism Program, Volcanoes of the World publication. The... -
Federal
Coral Reefs - Global 19 recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
This dataset represents the global distribution of warm water coral reefs and should be seen as an "interim" product. It has been compiled from a number of data... -
Federal
Hawaii Volcanism: Impact on the Environment 17 recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
Fewer than one hundred people have been killed by eruptions in the recorded history of Hawaii, and only one death has occurred in the 20th Century. However, the lava... -
Federal
Airborne Gravity Data - Gravity for the Redefinition of the American Vertical Datum (GRAV-D) NGDA 14 recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
Gravity for the Re-definition of the American Vertical Datum (GRAV-D) is a project initiated by NOAA's National Geodetic Survey to collect and monitor gravity data... -
Federal
Flood Hazard Zones - Guam 12 recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
FEMA Flood Hazard Zones for Guam. -
Federal
Data on the Earth's Magnetic Field and its Secular Change since 1800 12 recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
Information on the past and present orientation of the Earth's magnetic field is available from the National Geophysical Data Center (NGDC) which serves as the... -
Federal
NCEI/WDS Global Significant Earthquake Database, 2150 BC to Present 11 recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
The Significant Earthquake Database is a global listing of over 5,700 earthquakes from 2150 BC to the present. A significant earthquake is classified as one that... -
Federal
NGS Gravity Station Data for the U.S.
National Oceanic and Atmospheric Administration, Department of Commerce —
The gravity station data (1,633,499 records) were gathered by various governmental organizations (and academia) using a variety of methods. This data base was... -
Federal
Declination Calculator
National Oceanic and Atmospheric Administration, Department of Commerce —
Declination is calculated using the current International Geomagnetic Reference Field (IGRF) model. Declination is calculated using the current World Magnetic Model... -
Federal
August 1976 Moro Gulf, Philippines Images
National Oceanic and Atmospheric Administration, Department of Commerce —
On August 16, 1976, at 16:11:07 UTC, a magnitude (Mw) 8.0 earthquake shook Mindanao Island in the Philippines. It caused a destructive tsunami in the Celebes Sea that... -
Federal
EMAG2v3: Earth Magnetic Anomaly Grid (2-arc-minute resolution)
National Oceanic and Atmospheric Administration, Department of Commerce —
EMAG2v3 is a global Earth Magnetic Anomaly Grid compiled from satellite, ship, and airborne magnetic measurements. It is a significant update of the previous release... -
Federal
Global Gravity Grids, Geoid Height and Gravity Anomaly Profiles
National Oceanic and Atmospheric Administration, Department of Commerce —
The entire collection of GEOSAT ERM (Nov.'86 - Dec. '89) data over land and ice regions is held at the National Geophysical Data Center (NGDC). These data will yield... -
Federal
US Historic Declination Calculator
National Oceanic and Atmospheric Administration, Department of Commerce —
This programs derives a table of secular change in magnetic declination for a specified point in the conterminous United States. It utilizes the USD polynomial and... -
Federal
Worldwide Instantaneous Values of Geomagnetic Components D, H, and Z or X, Y, and Z at 2.5-minute Intervals from 1964 to 1974
National Oceanic and Atmospheric Administration, Department of Commerce —
This data file is comprised of instantaneous values of the geomagnetic components D, H, and Z or X, Y, and Z at 2.5-minute intervals. These values were derived from... -
Federal
Geomagnetic Observatory One Minute Data
National Oceanic and Atmospheric Administration, Department of Commerce —
Geomagnetic One Minute Means from world wide observatories -
Federal
DMA Reference Base Station Network Data
National Oceanic and Atmospheric Administration, Department of Commerce —
The data (15,904 records documenting 9,090 worldwide gravity base stations) were gathered by various governmental organizations (and academia) using a variety of... -
Federal
Coral Reefs - Hawaii
National Oceanic and Atmospheric Administration, Department of Commerce —
This dataset represents a subset of the global distribution of warm water coral reefs for Hawaii and should be seen as an "interim" product. It has been compiled from... -
Federal
Geomagnetic Storm Sudden Commencements
National Oceanic and Atmospheric Administration, Department of Commerce —
Storm Sudden Commencements (ssc) 1868 to present: STORM1 and STORM2 Lists: (Some text here is taken from the International Association of Geomagnetism and Aeronomy... -
Federal
Haxby Worldwide Gravity Grid
National Oceanic and Atmospheric Administration, Department of Commerce —
In 1985, Dr. William F. Haxby of the Lamont-Doherty Geological Observatory of Columbia University prepared this data base of free-air gravity anomalies, based on the...