gov.noaa.ngdc.mgg.geophysics:G01149 eng; USA utf8 dataset Brian Meyer NOAA National Centers for Environmental Information 303-497-6125 Brian.Meyer@noaa.gov pointOfContact 2017-09-25 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Aeromagnetic Regional Grid Data 1983-01-01 publication First NOAA National Centers for Environmental Information publisher DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce User Services 303-497-6826 303-497-6513 325 Broadway Boulder CO 80305-3328 USA ngdc.info@noaa.gov 8am-5pm, Monday through Friday publisher The Committee for the Magnetic Anomaly Map of North America (1987) originator The Ministry of Geology of the USSR originator U.S. Naval Oceanographic Office originator DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce User Services 303-497-6826 303-497-6513 325 Broadway Boulder CO 80305-3328 USA ngdc.info@noaa.gov 8am-5pm, Monday through Friday originator DOI/USGS > U.S. Geological Survey, U.S. Department of the Interior (703) 648-5953 12201 Sunrise Valley Drive Reston VA 20192 USA http://www.usgs.gov/ask/index.php originator Minnesota Geological Survey originator Geological Survey of Canada originator U.S. Department of Energy originator Solid Earth (SE) Magnetic Anomaly Data of the Former Soviet Union, 1996. SE-44, Directory of Data Sources for Lithospheric Investigations. Several regions are represented in this unique collection of earth surface measurements of magnetic field parameters and their related anomalies. The DNAG Magnetics "Super grid" of Magnetic Anomaly Map of North America was created from the four "Original" DNAG Magnetic data sets distributed by The Committee for the Magnetic Anomaly Map of North America, 1987. This development of a super grid involved an extensive task of matching original quadrant information and eliminating overlap. The resulting grid, with x and y step intervals of 2.0 kilometers yields a grid with dimensions (4451 x 4273) containing 19,019,123 values. This process can be thought of as "stitching the grids." The data in this grid are in a Spherical Transverse Mercator projection, the kilometer coordinates of which can be recovered from the indices of a grid point. The Ministry of Geology of the USSR published a mosaic series of 18 maps in 1974, at a scale of 1:2,500,000 showing the residual magnetic intensity over the land mass of the USSR. Much of the source material originated from data collected between 1949-1962, during which time the entire territory of the USSR was surveyed using aerial magnetic survey techniques. These surveys wereadjusted based on many methods including secular variation linked to magnetic observatories. Anomalies were computed with reference to a normal field map for 1964-65 constructed from equally accurate total field measurements along control network strips. Digitization was accomplished in 1982 by the U.S. Naval Oceanographic Office. The "BRIGGS cubic spline" method was used to compute grid values. A one-minute grid was created by properly matching the boundaries of the digitized sub-sections. The units of the original map aremilli-Oersteds and the units of the resulting digital grid are milli-Oersted/100. Corrections to the digital contour file were made by Conoco Inc.in 1993. New Grid files at 2.5 Km and 5.0 Km spacing were created and re-archived by NGDC. These data are available on CD-ROM. World Data Center-A (WDC-A) for Solid Earth Geophysics presently holds Grid data from many U.S. and other regions. These data were contributed by: USGS, MINN G.S. and other Worldwide organizations. Grid intervals vary but are as fine as 213.36m for the NGS Super Grid of the state of Minnesota. Other grids were recreated indigital form from previously published maps and charts. The bulk of these grid data files were contributed to NGDC after 1985. A detailed list of the specific regions is available upon request. Provide Access to High Definition Gridded Magnetic Survey Data Collections underDevelopment Brian Meyer NOAA National Centers for Environmental Information 303-497-6125 Brian.Meyer@noaa.gov pointOfContact unknown EARTH SCIENCE>SOLID EARTH>Geomagnetism>Reference Fields EARTH SCIENCE>SOLID EARTH>Geophysical Fields>Magnetic Field EARTH SCIENCE>SOLID EARTH>Geomagnetism>Magnetic Anomalies theme Global Change Master Directory (GCMD) Science Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian Gridded Tracklines Aeromagnetic Surveys Anomaly Grids Airborne Magnetics theme Uncontrolled Keywords Global place GCMD Keyword Thesaurus DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use Constraints: None otherRestrictions Access Constraints: None eng; USA geoscientificInformation -180 180 -90 90 1978-01-01 1990-01-01 Formerly G00999, F01017. Parent G01149. ASCII DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce User Services 303-497-6826 303-497-6513 325 Broadway Boulder CO 80305-3328 USA ngdc.info@noaa.gov 8am-5pm, Monday through Friday distributor Depends on the Data Set Ordering Instructions: Price information is available upon request. Custom Order Process: Contact Data Center 4 Days 300 https://www.ngdc.noaa.gov/seg/potfld/aromag.html https://www.ngdc.noaa.gov/seg/potfld/amag_grd.shtml cdRom iso9660 repository NOAA National Centers for Environmental Information NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015. 2015-04-22T00:00:00 annually This metadata was automatically generated from the Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata standard (version FGDC-STD-012-2002) using the 2012-08-08 version of the FGDC RSE to ISO 19115-2 transform. Translated from FGDC 2012-10-10T10:31:50.906-06:00 This record has been automatically modified to include references to NCEI where applicable on 2015-09-01. NOAA National Centers for Environmental Information Metadata Specialist editor Brian Meyer NOAA National Centers for Environmental Information 303-497-6125 Brian.Meyer@noaa.gov pointOfContact MAGNETOMETER AIRCRAFT