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1. Collection of Observed Gravity Values, Absolute Gravity Measurements, Grids and Other Derived Summary Data [gov.noaa.ngdc.mgg.geophysics.G01018]   PARENT DIF
The National Geophysical Data Center (NGDC) of NOAA, in cooperation with the National Geodetic Survey of NOAA, have published a Gravity CD-ROM containing observed and derived gravity measurements. ...


2. Crustal Ages of the Ocean Floor - Poster [gov.noaa.ngdc.mgg.geophysics.G01167]   PARENT DIF
The Crustal Ages of the Ocean Floor Poster was created at NGDC using the Crustal Ages of the Ocean Floor database draped digitally over a relief of the ocean floor database. The Crustal Ages of the ...


3. EMAG2: Earth Magnetic Anomaly Grid (2-arc-minute resolution) [gov.noaa.ngdc.mgg.geophysical_models.EMAG2]   PARENT DIF
EMAG2 is a global Earth Magnetic Anomaly Grid compiled from satellite, ship, and airborne magnetic measurements. It is a significant update of our previous candidate grid for the World Digital Magnetic ...


4. Global Gravity Grids, Geoid Height and Gravity Anomaly Profiles [gov.noaa.ngdc.mgg.geophysics.G01146]   PARENT DIF
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 reasonable elevation values for ...


5. Magnetic Anomaly Data for the Former Soviet Union [gov.noaa.ngdc.mgg.geophysics.G01284]   PARENT DIF
In 1974, the Ministry of Geology of the U.S.S.R. published a mosaic series of 18 sheets at 1:2.5 million scale showing the residual magnetic intensity over the land mass of the U.S.S.R


6. Project Magnet 1996 [gov.noaa.ngdc.mgg.geophysics.G01263]   PARENT DIF
Project Magnet data include low altitude, high density individual track line surveys, high altitude vector data and regional magnetic anomaly grids.


7. Values About Ancient Magnetic Poles, Declination, Inclination, and Intensity, That Can Be Used to Track the Magnetic Pole and Continent Movements [gov.noaa.ngdc.mgg.geophysics.G00892]   PARENT DIF
The study of magnetism is one of the oldest of the geophysical sciences. It is unique among the sciences in that ancient records of the geomagnetic field are preserved in rocks and changes in the ...


8. World Magnetic Model 2010 [gov.noaa.ngdc.WMM2010]   PARENT DIF
The World Magnetic Model is the standard model used by the U.S. Department of Defense, the U.K. Ministry of Defence, the North Atlantic Treaty Organization (NATO) and the International Hydrographic ...


9. Worldwide Database of Analog Marine Seismics, Bathymetry, Magnetics, and Gravity Data [gov.noaa.ngdc.mgg.geophysics.G00512]   PARENT DIF
The Analog Marine Geophysical Underway data file consists primarily of seismic data and some bathymetry, magnetics, and gravity data. Most of the data are released to NGDC in microform packages; microfilm, ...


10. A Hypercube of Deep Sea Drilling Project (DSDP) Marine Geological and Geophysical Data [gov.noaa.ngdc.mgg.geology.G03930]   PARENT DIF
Dr. Christopher Jenkins of the University of Colorado Institute for Arctic and Alpine Research (INSTAAR), produced this data hypercube derived from the prime data (exclusive of G.R.A.P.E. and logging ...


11. Age, spreading rates, and spreading asymmetry of the world's ocean crust [gov.noaa.ngdc.mgg.geology.G04150]
The authors present four companion digital models of the age, age uncertainty, spreading rates and spreading asymmetries of the world's ocean basins as geographic and Mercator grids with 2 minute ...


12. Archive of Core and Site/Hole Data and Photographs from the Deep Sea Drilling Project (DSDP) [gov.noaa.ngdc.mgg.geology.G00993]
The Deep Sea Drilling Project (DSDP) operated the D/V GLOMAR CHALLENGER from 1968-1983, drilling 1,112 holes at 624 sites worldwide. The DSDP was funded by the US National Science Foundation and several ...


13. Archive of Core and Site/Hole Data and Photographs from the Integrated Ocean Drilling Program (IODP) [gov.noaa.ngdc.mgg.geology.IntegratedOceanDrillingProgramUSIO]
The US Science Operator for the Integrated Ocean Drilling Program (IODP) operated the drilling vessel JOIDES Resolution from 2004-2013 for worldwide expeditions numbering between 301 through 346. ...


14. Archive of Core and Site/Hole Data and Photographs from the Ocean Drilling Program (ODP) [gov.noaa.ngdc.mgg.geology.G03298]
The Ocean Drilling Program (ODP) operated the drilling vessel JOIDES Resolution from 1984-2003 for over 100 cruises worldwide. The ODP was funded by the U.S. National Science Foundation ...


15. Archive of Historic Core Data from the Ocean Drilling Program (ODP) Legs 101-129 (Pre-JANUS) [gov.noaa.ngdc.mgg.geology.G01013]
The Ocean Drilling Program (ODP) operated the drilling vessel JOIDES Resolution from 1984-2003 for over 100 cruises worldwide. The ODP was funded by the U.S. National Science Foundation ...


16. Marine Geology Reports in the NGDC Archive [gov.noaa.ngdc.mgg.geology.G00502]
Historic Marine Geologic data reports available are from academia, government, and non-U.S. sources. These reports were originally in paper or film form and were scanned to Portable Document Format ...


17. World Magnetic Model 2010 [gov.noaa.ngdc.mgg.geophysical_models.WMM2010]
The World Magnetic Model is the standard model used by the U.S. Department of Defense, the U.K. Ministry of Defence, the North Atlantic Treaty Organization (NATO) and the International Hydrographic ...


18. Declination Calculator [gov.noaa.ngdc.mgg.geophysical_models.Declination_Calculator]
Declination is calculated using the current International Geomagnetic Reference Field (IGRF) model. Declination is calculated using the current World Magnetic Model (WMM) or International Geomagnetic ...


19. Enhanced Magnetic Model 2010 [gov.noaa.ngdc.mgg.geophysical_models.EMM2010]
The Enhanced Magnetic Model (EMM) extends to degree and order 720, resolving magnetic anomalies down to 56 km wavelength. The higher resolution of the EMM results in significantly improved pointing ...


20. International Geomagnetic Reference Field - 11th Generation [gov.noaa.ngdc.mgg.geophysical_models.IGRF-11]
The eleventh generation of the International Geomagnetic Reference Field (IGRF) was adopted in December 2009 by the International Association of Geomagnetism and Aeronomy Working Group V-MOD. It ...


21. Magnetic Field Calculator [gov.noaa.ngdc.mgg.geophysical_models.Magnetic_Field_Calculator]
The Magnetic Field Calculator will calculate the total magnetic field, including components (declination, inclination, horizontal intensity, northerly intensity, easterly intensity, vertical intensity) ...


22. Magnetic Field Grid Calculator [gov.noaa.ngdc.mgg.geophysical_models.Magnetic_Field_Grid_Calculator]
The Magnetic Field Properties Calculator will computes the estimated values of Earth's magnetic field(declination, inclination, vertical component, northerly component, easterly component, horizontal ...


23. NGDC Marine Geology Data Archive [gov.noaa.ngdc.Marine_Geology]   CHILD DIFs
Marine Geologic data compilations and reports in the NGDC archive are from academic and government sources around the world. Over eight terabytes of analyses, descriptions, and images of sediment ...


24. NGDC Marine Trackline Geophysics Database [gov.noaa.ngdc.G00129]   CHILD DIFs
This data set contains bathymetry, magnetic, gravity and seismic shot point navigation data collected during marine cruises from 1939 to the present. Coverage is worldwide. These data are stored in ...


25. US Historic Declination Calculator [gov.noaa.ngdc.mgg.geophysical_models.US_Historic_Declination_Calculator]
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 the IGRF spherical harmonic models. ...


26. Measurements Taken During Mirny - Dome C Traverse, 1981 [mirny_domec_1981]
Log books for measurements taken during the Mirny - Dome C traverse by the Russians in 1981. Measurements include snow accumulation, magnetic readings, and barometric levelling. Copies of these documents ...


27. Gravity and Miscellaneous Fieldwork Report - Ingrid Christenson Coast 1980-81 [Survey_1980_81_Ingrid_Christenson]
Report on field season on Ingrid Christenson coast summer 1980-81. Program aims: Helicopter Geophysical (gravity) Glaciological Survey; Palaeomagnetism, Vertical Air Photography. See the report for ...


28. Accumulation, Air Temperature, Barometric Pressure and Magnetic Readings from Law Dome and Wilkes Land, 1979 [lawdome_1979_field_data]
A collection of observations made during the Autumn-Spring 1979 traverses on Law Dome and Wilkes Land. Measurements include accumulation, air temperature, barometric pressure, and magnetic field strength. ...


29. Geomagnetic Observatories [GeomagneticObs]
Geomagnetic Observatories at Mawson and Macquarie Island, magnetic secular variation information from Davis and Casey, magnetic repeat stations in AAT and Heard Is (former observatories Wilkes, Heard). ...


30. Geophysical Survey of Law Dome, 1970 [casey_traverse_1970]
In 1970, several traverses on Law Dome extensively recorded barometric pressure, air temperature, magnetic field and gravity as they travelled. These results are recorded in two log books. Physical ...


31. Heard Island 1986-1987 Scientific Expedition Report [Heard_86-87_Report]
Heard Island Expedition, 16 November 1986 to 21 January 1987, report written by Rod Ledingham, Officer in Charge. Taken from the report: The 1986-87 expedition was the second in a series of three ...


32. Logs, Data and Notes from Traverses on Law Dome/Wilkes Land, 1986 [lawdome_traverse_logs_1986]
A collection of logbooks and notes from the 1986 traverses out of Casey over Law Dome and Wilkes Land. Information recorded includes accumulation, gravity, snow temperature, magnetic field, stratigraphy, ...


33. Magnetic Observations on Law Dome, 1971 [law_dome_magnetic_1971]
Log of magnetic observations made on Law Dome in 1971. The hard copy of this document has been archived in the Australian Antarctic Division Records Store.


34. Magnetic Readings Along Pioneerskaya - Dome C Traverses, 1977 and 1978 [magnetic_domec_1977]
Magnetic readings taken along the Russian traverse from Pioneerskaya to Dome C in 1977 and 1978. Copies of these documents have been archived in the records store of the Australian Antarctic Division.


35. Report from the 1985 ANARE expedition to Heard Island [Heard_Island_Report_1985]
Report of the 1985 A.N.A.R.E to Heard Island. This document contains the following scientific reports: Zoology - elephant seals, fur seals, General Zoology - leopard seals, fish, insects, birds; Botany ...


36. Coordinated magnetic observations at Macquarie Island during the STEP period [ASAC_2286]
Metadata record for data from ASAC Project 2286 See the link below for public details on this project. There are two global networks associated with these data, Old and New. The old network is the ...


37. Geomagnetic Variations Studies on Kerguelen Island [ASAC_314]
The data set contains the variation of the magnetic elements (North, East and Vertical) for 7 sites on Kerguelen at one minute interval. The data were recorded between 14/1/1988 and 18/2/1988. The ...


38. Geophysical imaging, structural analysis, alteration geochemistry of Macquarie Island crust, to constrain tectonic, and hydrothermal history of the ocean floor. [ASAC_2409]
Although oceanic crust covers about 60% of the Earth, relatively little is known of its geology and the processes that have created it. Macquarie Island represents a unique subaerial exposure of the ...


39. Geoscience Australia Geophysical Observatories [ASAC_760]
Geoscience Australia Geophysical Observatories Note, there are separate meta-data records for Geomagnetism and for seismology/nuclear monitoring. Brief summary: AGSO operates ...


40. Interpretation of airborne geophysical data acquired during PCMEGA [ASAC_2561]
Metadata record for data from ASAC Project 2561 See the link below for public details on this project. The project aims to investigate the multidimensional sub-surface structures in the southern ...


41. Ionospheric dynamics in the polar cap [ASAC_949]
The aim is to measure structure and drift in polar-cap ionospheric layers in order to test current theories and models, identify unexplained behaviour and develop theoretical explanations. The polar ...


42. Monitoring of the Antarctic geomagnetic field and VLF variations for trends [ASAC_507]
The interaction between the solar wind and the Earth's magnetic field creates a vast magnetic cavity within the solar wind flow, known as the magnetosphere. Through various solar wind-magnetosphere ...


43. Observations of ULF space plasma waves in Antarctica [ASAC_606]
This project records ultra-low frequency (ULF) waves in the 1mHz - 3Hz band at the Antarctic stations Davis, Casey, Mawson, and Macquarie Island and Zhongshan (PRC station). Search coil magnetometers ...


44. Observatory Operations - All Sky Imager Data from the Australian Antarctic Territory and Macquarie Island [ASAC_527_allsky]
All Sky Imager Systems (ASIS) are deployed at Casey, Davis, Macquarie island and Mawson. These systems are autonomous data collection systems which record All Sky Imager data during periods of darkness ...


45. Observatory Operations - Riometer and Magnetometer Data from the Australian Antarctic Territory and Riometer Data from Macquarie Island [ASAC_527]
An analogue data acquisition system (ADAS), designed to collect time-stamped, time series data from any analogue signal is currently used to log data from the riometer, magnetic pulsations and fluxgate ...


46. Publications by Geoscience Australia relating to Australian Antarctic geomagnetic observatory data [ASAC_760_geomag]
This data contains references to publications which were produced by the Australian Geological Survey Organisation (AGSO) between 1994 and 1997, using data from the Australian Antarctic geomagnetic ...


47. Southern Ocean Magnetometer Experiment (SOMEx) [ASAC_852]
The SOMEx (Southern Ocean Magnetometer Experiment) experiment deployed four seafloor magnetomoeters in 1996, to measure changing magnetic fields on the floor of the southern ocean. Two were recovered ...


48. Vertical Electric Field measurements at Davis Station, Antarctica 1988 to 1994 [ASAC_25]
A visual scan of the data from March 1988 to December 1990 was undertaken to identify cases where correlations with local phenomena were apparent. The bulk of the correlations found were with wind ...


49. Prince Charles Mountains Expedition of Germany-Australia (PCMEGA) [ASAC_1215]
These data are gravity and magnetometer data collected as part of the PCMEGA (Prince Chrales Mountains Expedition of Germany and Australia) expedition of 2002/2003. An excerpt from the ...


50. Airborne Magnetic Trackline and Survey Data (Vector and Scalar Observations) [gov.noaa.ngdc.G01150]   CHILD DIFs
The National Geophysical Data Center (NGDC) receive airborne magnetic survey data from US and non-US agencies. In an effort to provide a central library for digital aeromagnetic data in the public ...


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