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1. 1-deg x 1-deg Terrestrial Mean Free-Air Anomalies [gov.noaa.ngdc.mgg.geophysics.G01414]   PARENT DIF
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 ...


2. 30-min x 30-min Terrestrial Mean Free-Air Anomalies [gov.noaa.ngdc.mgg.geophysics.G01415]   PARENT DIF
The 30-min x 30-min 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 ...


3. Bolivian Bouguer Anomaly Grid [gov.noaa.ngdc.mgg.geophysics.G01498]   PARENT DIF
A 1 kilometer Bouguer anomaly grid for the country of Bolivia.Number of columns is 550 and number of rows is 900. The order of the data is from the lower left to the right and then up one row.


4. 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. ...


5. 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 ...


6. GEOSAT 44: High-Accuracy, High-Resolution Gravity [gov.noaa.ngdc.mgg.geophysics.G01495]   PARENT DIF
This satellite altimeter data base contains precise geoid and gravity anomaly profiles which were constructed from the average of 44 repeat cycles of Geosat. The data are contained in two files: (1) ...


7. GEOSAT Southern Ocean (30S-72S Lat.} Altimeter Data [gov.noaa.ngdc.mgg.geophysics.G01418]   PARENT DIF
GEOSAT DATA: Gridded Gravity Anomalies for the Southern Ocean


8. GEOSAT44: High-Accuracy, High-Resolution Gravity [gov.noaa.ngdc.mgg.geophysics.G01494]   PARENT DIF
This satellite altimeter data base contains precise geoid and gravity anomaly profiles which were constructed from the average of 44 repeat cycles of Geosat. The data are contained in two files: (1) ...


9. 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 ...


10. Haxby Worldwide Gravity Grid [gov.noaa.ngdc.mgg.geophysics.G01412]   PARENT DIF
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 radar altimetry of the SEASAT ...


11. High Density GEOSAT/GM Altimeter Data [gov.noaa.ngdc.mgg.geophysics.G01448]   PARENT DIF
The high density Geosat/GM altimeter data south of 30 S have finally arrived. In addition, ERS-1 has completed more than 6 cycles of its 35-day repeat track. These data provide a dramatically improved ...


12. Land and Marine Gravity Data on CD-ROM - 1999 Edition [gov.noaa.ngdc.mgg.geophysics.G01352]   PARENT DIF
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 ...


13. NEFSC 2012 Atlantic Herring Acoustic/Midwater Trawl Survey (PC1206) [gov.noaa.ngdc.mgg.wcd.PC1206_EK60]   PARENT DIF
The NEFSC Atlantic herring acoustic survey is a fisheries independent survey that provides scientific data for Atlantic herring assessments in the U.S. mid-Atlantic and New England regions. The survey ...


14. NGS Absolute Gravity Data [gov.noaa.ngdc.mgg.geophysics.G01449]   PARENT DIF
The NGS Absolute Gravity data (78 stations) was received in July 1993. Principal gravity parameters include Gravity Value, Uncertainty, and Vertical Gradient. The data are randomly spaced worldwide.


15. Northeast Integrated Pelagic Survey (PC1301) [gov.noaa.ngdc.mgg.wcd.PC1301_EK60]   PARENT DIF
During the survey we will quantify the spatial distribution of the following parameters: water currents, water properties, phytoplankton, microzooplankton, mesozooplankton, pelagic fish and invertebrates, ...


16. Regional Files of GEOS3/SEASAT/GEOSAT Data [gov.noaa.ngdc.mgg.geophysics.G01413]   PARENT DIF
Gravity anomalies and sea surface heights have been computed on a 0.125 degree grid in the ocean areas from a combined GEOS3/SEASAT/GEOSAT altimeter data set. This data base was received in March ...


17. Regional Files of GEOS3/SEASAT/GEOSAT Data [gov.noaa.ngdc.mgg.geophysics.G01416]   PARENT DIF
Gravity anomalies and sea surface heights have been computed on a 0.125 degree grid in the ocean areas from a combined GEOS3/SEASAT/GEOSAT altimeter data set. This data base was received in March ...


18. 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 ...


19. 5-minute Gridded Global Relief Data (ETOPO5) [gov.noaa.ngdc.mgg.dem.3141]   PARENT DIF
Earth topography five minute grid (ETOPO5) is a gridded data base of worldwide elevations derived from several sources at a resolution of 5 minutes of latitude and longitude. Data are also available ...


20. AMAPPS-Cetacean and Turtle Abundance Spring Survey (GU1402) [gov.noaa.ngdc.mgg.wcd.GU1402_EK60]   PARENT DIF
The AMAPPS survey primarily focuses on beaked whale species, with the following objectives: 1) Develop a better understanding of beaked whale habitat use and site fidelity for abundance and monitoring ...


21. AMAPPS-Cetacean and Turtle Abundance Summer Survey (HB1303) [gov.noaa.ngdc.mgg.wcd.HB1303_EK60]   PARENT DIF
The AMAPPS survey will primarily focus on beaked whale species, with the following objectives: 1) Develop a better understanding of beaked whale habitat use and site fidelity for abundance and monitoring ...


22. AMAPPS-Cetacean and Turtle Abundance Summer Survey (HB1403) [gov.noaa.ngdc.mgg.wcd.HB1403_EK60]   PARENT DIF
The AMAPPS survey will primarily focus on beaked whale species, with the following objectives: 1) Develop a better understanding of beaked whale habitat use and site fidelity for abundance and monitoring ...


23. AMAPPS-Cetacean and Turtle Abundance Survey (HB0903) [gov.noaa.ngdc.mgg.wcd.HB0903_EK60]   PARENT DIF
The AMAPPS survey will primarily focus on beaked whale species, with the following objectives: 1) Develop a better understanding of beaked whale habitat use and site fidelity for abundance and monitoring ...


24. Deep Water Coral (HB1402) [gov.noaa.ngdc.mgg.wcd.HB1402_EK60]   PARENT DIF
The cruise will survey and collect samples of deep-sea corals and related marine life in the canyons in the northern Gulf of Maine in U.S. and Canadian waters. The U.S. and Canadian scientists (National ...


25. NEFSC 2011 Atlantic Herring Acoustic/Midwater Trawl Survey (DE1108) [gov.noaa.ngdc.mgg.wcd.DE1108_EK60]   PARENT DIF
The NEFSC Atlantic herring acoustic survey is a fisheries independent survey that provides scientific data for Atlantic herring assessments in the U.S. mid-Atlantic and New England regions. The survey ...


26. NEFSC 2011 Fall Bottom Trawl Survey (HB1105) [gov.noaa.ngdc.mgg.wcd.HB1105_EK60]   PARENT DIF
The NEFSC bottom trawl survey is a fisheries independent, multi-species survey that provides the primary scientific data for fisheries assessments in the U.S. mid-Atlantic and New England regions. ...


27. NEFSC 2011 Spring Bottom Trawl Survey (HB1102) [gov.noaa.ngdc.mgg.wcd.HB1102_EK60]   PARENT DIF
The NEFSC bottom trawl survey is a fisheries independent, multi-species survey that provides the primary scientific data for fisheries assessments in the U.S. mid-Atlantic and New England regions. ...


28. NEFSC 2012 Fall Bottom Trawl Survey (HB1206) [gov.noaa.ngdc.mgg.wcd.HB1206_EK60]   PARENT DIF
The NEFSC bottom trawl survey is a fisheries independent, multi-species survey that provides the primary scientific data for fisheries assessments in the U.S. mid-Atlantic and New England regions. ...


29. NEFSC 2012 Spring Bottom Trawl Survey (HB1201) [gov.noaa.ngdc.mgg.wcd.HB1201_EK60]   PARENT DIF
The NEFSC bottom trawl survey is a fisheries independent, multi-species survey that provides the primary scientific data for fisheries assessments in the U.S. mid-Atlantic and New England regions. ...


30. NEFSC 2013 Fall Bottom Trawl Survey (HB1304) [gov.noaa.ngdc.mgg.wcd.HB1304_EK60]   PARENT DIF
The NEFSC bottom trawl survey is a fisheries independent, multi-species survey that provides the primary scientific data for fisheries assessments in the U.S. mid-Atlantic and New England regions. ...


31. NEFSC 2013 Spring Bottom Trawl Survey (HB1301) [gov.noaa.ngdc.mgg.wcd.HB1301_EK60]   PARENT DIF
The NEFSC bottom trawl survey is a fisheries independent, multi-species survey that provides the primary scientific data for fisheries assessments in the U.S. mid-Atlantic and New England regions. ...


32. NEFSC 2014 Spring Bottom Trawl Survey (HB1401) [gov.noaa.ngdc.mgg.wcd.HB1401_EK60]   PARENT DIF
The NEFSC bottom trawl survey is a fisheries independent, multi-species survey that provides the primary scientific data for fisheries assessments in the U.S. mid-Atlantic and New England regions. ...


33. NEFSC Autumn Bottom Trawl Survey [gov.noaa.ngdc.mgg.wcd.HB201304_leg01]   PARENT DIF
The bottom trawl survey is a randomly-stratified survey covering the US EEZ from Cape Hatteras to Nova Scotia, CA. The survey is a fisheries independent survey, which provides scientific information ...


34. Northeast Integrated Pelagic Survey (GU1305) [gov.noaa.ngdc.mgg.wcd.GU1305_EK60]   PARENT DIF
During the survey we will quantify the spatial distribution of the following parameters: water currents, water properties, phytoplankton, microzooplankton, mesozooplankton, pelagic fish and invertebrates, ...


35. Shelikof Strait Acoustic-Trawl Survey of Walleye Pollock (DY1203) [gov.noaa.ngdc.mgg.wcd.DY1203_ME70]   PARENT DIF
The Midwater Assessment and Conservation Engineering (MACE) program of the Alaska Fisheries Science Center (AFSC) conducted an acoustic-trawl (AT) stock assessment survey in the Gulf of Alaska (GOA) ...


36. Shumagin Islands Acoustic-Trawl Survey of Walleye Pollock (DY1302) [gov.noaa.ngdc.mgg.wcd.DY1302_ME70]   PARENT DIF
The Midwater Assessment and Conservation Engineering (MACE) program of NOAA's National Marine Fisheries Service, Alaska Fisheries Science Center (AFSC), conducted an acoustic-trawl (AT) stock assessment ...


37. Cascadia Initiative Year 3, LEG 3 [gov.noaa.ngdc.mgg.wcd.AT26-02_EM122]
Recover 30 Lamont Doherty Earth Observatory Ocean-bottom Seismometers (OBSs) of 3 different types: *10 TRM shallow-water OBSs with Trillium compact 3-component absolute pressure gauge installed at ...


38. Circulation, Cross-Shelf Exchange, Sea Ice, and Marine Mammal Habitats on the Alaska Beaufort Sea Shelf [gov.noaa.ngdc.mgg.wcd.HLY1303_EM122]
HLY 13-03 was a familiar mission that continued our efforts from HLY 12-03, beginning and ending in Dutch Harbor, AK. Throughout the mission we remained primarily in the Chukchi and Beaufort Seas, ...


39. DY1207 Bering Sea ME70 [gov.noaa.ngdc.mgg.wcd.DY1207_ME70]
Scientists from the Midwater Assessment and Conservation Engineering (MACE) Program of the Alaska Fisheries Science Center (AFSC) have conducted summer surveys to estimate the abundance and distribution ...


40. Gulf of Alaska Acoustic-Trawl Survey of Walleye Pollock (DY1307) [gov.noaa.ngdc.mgg.wcd.DY1307_ME70]
The Midwater Assessment and Conservation Engineering (MACE) program of NOAA's National Marine Fisheries Service, Alaska Fisheries Science Center (AFSC) conducted an acoustic-trawl (AT) stock assessment ...


41. HOV Alvin Post-Overhaul Trials, Leg 1 [gov.noaa.ngdc.mgg.wcd.AT26-05_EM122]
Post overhall testing of Alvin


42. Shelikof Strait Acoustic-Trawl Survey of Walleye Pollock (DY1303) [gov.noaa.ngdc.mgg.wcd.DY1303_ME70]
The Midwater Assessment and Conservation Engineering (MACE) program of NOAA's National Marine Fisheries Service, Alaska Fisheries Science Center (AFSC) conducted an acoustic-trawl (AT) stock assessment ...


43. Shumagin Islands Acoustic-Trawl Survey of Walleye Pollock (DY1201) [gov.noaa.ngdc.mgg.wcd.DY1201_ME70]
The Midwater Assessment and Conservation Engineering (MACE) program of the Alaska Fisheries Science Center (AFSC) conducted an acoustic-trawl (AT) stock assessment survey in the Gulf of Alaska (GOA) ...


44. Submarine Exploration and Evaluation of Petroleum Seeps (SEEPS) 13 [gov.noaa.ngdc.mgg.wcd.AT26-06_EM122]
1. Conduct in-situ incubations with devices for microbial growth, deployed in 2011. 2. Investigate the fate of dissolved hydrocarbons in the waters along the CA margin. 3. Investigate the variability ...


45. Transit [gov.noaa.ngdc.mgg.wcd.AT26-01_EM122]
Transit from Woods Hole, MA to Astoria, OR.


46. Global Volcano Locations Database [gov.noaa.ngdc.mgg.hazards.G02135]
NGDC maintains a database of over 1,500 volcano locations obtained from the Smithsonian Institution Global Volcanism Program, Volcanoes of the World publication. The database includes information ...


47. Seismicity Catalog Collection, 2150 BC to 1996 AD [gov.noaa.ngdc.mgg.hazards.G01318]
The Seismicity Catalog Collection is a compilation data on over four million earthquakes dating from 2150 BC to 1996 AD from NOAA's National Geophysical Data Center and U.S. Geological Survey's National ...


48. Strong Motion Earthquake Data Values of Digitized Strong-Motion Accelerograms, 1933-1994 [gov.noaa.ngdc.mgg.hazards.G01145]
The Strong Motion Earthquake Data Values of Digitized Strong-Motion Accelerograms is a database of over 15,000 digitized and processed accelerograph records from 1933 to 1994. Data were obtained from ...


49. United States Earthquake Intensity Database, 1638-1985 [gov.noaa.ngdc.mgg.hazards.G01142]
The United States Earthquake Intensity Database is a collection of damage and felt reports for over 23,000 U.S. earthquakes from 1638-1985. The majority of intensities are for U.S. cities, but there ...


50. Water Column Sonar Data Collection [gov.noaa.ngdc.mgg.wcd.WCD_Collection]   CHILD DIFs
The collection and analysis of water column sonar data is a relatively new avenue of research into the marine environment. Primary uses include assessing biological abundance, species identification,and ...


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