Skip to main content
U.S. flag

An official website of the United States government

Overview

Active
By Geomagnetism Program July 18, 2018

USGS Geomagnetism Program research staff evaluate data produced by magnetic observatories, including those operated by the USGS, data processing methods, and magnetic indices derived from observatory data.

 

Magnetic data from Honolulu and Alaska recording the Halloween storm of 2003, one of the largest storms ever recorded.
Sources/Usage: Public Domain. View Media Details
Magnetic data from Honolulu and Alaska recording the Halloween storm of 2003, one of the largest storms ever recorded.(Public domain.)

Example analyses of magnetic data quality published by USGS scientists include:

 

Below are publications associated with this project.

Long-term biases in geomagnetic K and aa indices

Analysis is made of the geomagnetic-activity aa index and its source K-index data from groups of ground-based observatories in Britain, and Australia, 1868.0–2009.0, solar cycles 11–23. The K data show persistent biases, especially for high (low) K-activity levels at British (Australian) observatories. From examination of multiple subsets of the K data we infer that the biases are not predominantl
Authors
Jeffrey J. Love
By
Natural Hazards Mission Area, Geomagnetism Program, Geologic Hazards Science Center

Proceedings of the XIIIth IAGA Workshop on Geomagnetic Observatory Instruments, Data Acquisition, and Processing

The thirteenth biennial International Association of Geomagnetism and Aeronomy (IAGA) Workshop on Geomagnetic Observatory Instruments, Data Acquisition and Processing was held in the United States for the first time on June 9-18, 2008. Hosted by the U.S. Geological Survey's (USGS) Geomagnetism Program, the workshop's measurement session was held at the Boulder Observatory and the scientific sessio
Authors
Jeffrey J. Love
By
Natural Hazards Mission Area, Geomagnetism Program, Geologic Hazards Science Center

USGS Geomagnetism Program research staff evaluate data produced by magnetic observatories, including those operated by the USGS, data processing methods, and magnetic indices derived from observatory data.

 

Magnetic data from Honolulu and Alaska recording the Halloween storm of 2003, one of the largest storms ever recorded.
Sources/Usage: Public Domain. View Media Details
Magnetic data from Honolulu and Alaska recording the Halloween storm of 2003, one of the largest storms ever recorded.(Public domain.)

Example analyses of magnetic data quality published by USGS scientists include:

 

Below are publications associated with this project.

Long-term biases in geomagnetic K and aa indices

Analysis is made of the geomagnetic-activity aa index and its source K-index data from groups of ground-based observatories in Britain, and Australia, 1868.0–2009.0, solar cycles 11–23. The K data show persistent biases, especially for high (low) K-activity levels at British (Australian) observatories. From examination of multiple subsets of the K data we infer that the biases are not predominantl
Authors
Jeffrey J. Love
By
Natural Hazards Mission Area, Geomagnetism Program, Geologic Hazards Science Center

Proceedings of the XIIIth IAGA Workshop on Geomagnetic Observatory Instruments, Data Acquisition, and Processing

The thirteenth biennial International Association of Geomagnetism and Aeronomy (IAGA) Workshop on Geomagnetic Observatory Instruments, Data Acquisition and Processing was held in the United States for the first time on June 9-18, 2008. Hosted by the U.S. Geological Survey's (USGS) Geomagnetism Program, the workshop's measurement session was held at the Boulder Observatory and the scientific sessio
Authors
Jeffrey J. Love
By
Natural Hazards Mission Area, Geomagnetism Program, Geologic Hazards Science Center
Was this page helpful?