NYU Spatial Data Repository

Search Constraints

You searched for: Author National Geophysical Data Center Remove constraint Author: National Geophysical Data Center Publisher National Atlas of the United States Remove constraint Publisher: National Atlas of the United States Subject Geoscientific Information Remove constraint Subject: Geoscientific Information Subject Geomagnetism--Secular variations Remove constraint Subject: Geomagnetism--Secular variations Institution Stanford Remove constraint Institution: Stanford Place Massachusetts Remove constraint Place: Massachusetts Place United States Remove constraint Place: United States Format Shapefile Remove constraint Format: Shapefile
Number of results to display per page

Search Results

1. Magnetic Field - Secular Variation of the Declination Component for the Epoch 2010.0

2010. National Geophysical Data Center. This map layer shows isoporic lines (lines of equal annual change, or secular variation, in the declination of the Earth's magnetic field), derived... National Atlas of the United States.