Working Group on Geomagnetic Data and Indices

Sample format: IAGA-2002 - August 2011 Revision

sample for 1-minute definitive data

Format IAGA-2002 |
Source of Data Danish Meteorological Institute |
Station Name Narsarsuaq |
IAGA CODE NAQ |
Geodetic Latitude 61.160 |
Geodetic Longitude 314.560 |
Elevation 4 |
Reported XYZF |
Sensor Orientation DIF |
Digital Sampling 0.01 seconds |
Data Interval Type Filtered 1-minute (00:30 - 01:29) |
Data Type Definitive |
# This area is where the data source or distributor can include |
# any additional information needed for proper use of data. For |
# example, the observers name and contact, notes on a change of |
# instrumentation, reasons for missing data values, definition of |
# observed values, geomagnetic location of the observatory, etc. |
# This area should also contain the formula for computing the non- |
# reported elements and components of the INTERMAGNET binary |
# format which do not fit elsewhere. These include: |
# D-conversion: |
# = H/3438*10000. |
# which is word 8 in the INTERMAGNET binary format and is used |
# to convert variations of D in minutes of arc <–> nT. Please |
# note that all of the header records and comment records begin |
# with a space in column 1, end with a | (ASCII 124), and are |
# padded with spaces - never with tabs. |
# H = squareroot(X*X + Y*Y), cos D = X/H, sin I = Z/F |
DATE TIME DOY NAQX NAQY NAQZ NAQF |
2001-03-13 00:00:00.000 072 10800.11 -6100.23 53381.51 54801.12
2001-03-13 00:01:00.000 072 10800.31 -6100.20 53381.51 54801.12
2001-03-13 00:02:00.000 072 10801.11 -6101.23 99999.00 54801.12
2001-03-13 00:03:00.000 072 10803.12 -6100.23 99999.00 54801.12

Sample data header and data record for hourly values

The header record for Data Interval Type might read:
Data Interval Type 1-hour (00 - 59)
Note filler for non-reported element.

DATE TIME DOY NAQX NAQY NAQZ NAQF |
2001-03-13 00:00:00.000 072 10800.11 -6100.23 53381.51 88888.00
2001-03-13 01:00:00.000 072 10800.31 -6100.20 53381.51 88888.00
2001-03-13 02:00:00.000 072 10801.11 -6101.23 53381.50 88888.00
2001-03-13 03:00:00.000 072 10803.12 -6100.23 99999.00 88888.00

Sample data header and data record for monthly values

The header record for Data Interval Type might read:
Data Interval Type 1-month (01 - 31)
Note filler for non-reported element.

DATE TIME DOY NAQX NAQY NAQZ NAQF |
2001-01-15 00:00:00.000 015 10800.11 -6100.23 53381.51 88888.00
2001-02-14 00:00:00.000 045 10800.31 -6100.20 53381.51 88888.00
2001-03-15 00:00:00.000 074 10801.11 -6101.23 53381.50 88888.00
2001-04-15 00:00:00.000 105 10803.12 -6100.23 99999.00 88888.00

Sample for 1-second Variation Data

Format IAGA-2002 |
Source of Data Danish Meteorological Institute |
Station Name Narsarsuaq |
IAGA CODE NAQ |
Geodetic Latitude 61.160 |
Geodetic Longitude 314.560 |
Elevation 4 |
Reported HEZF |
Sensor Orientation HEZF |
Digital Sampling 1 seconds |
Data Interval Type 1-second instantaneous |
Data Type Variation |
# This area should contain additional information needed |
# in order to transform the reported elements. For the data in this |
# sample information about the declination at the observatory is |
# needed in order to tranform the variation data from HEZ to the |
# widely used XYZ orientation. Also information about the value of |
# horizontal field H can be useful to convert E-variations in nT to |
# variations in minutes of arcs. |
# Approx. D 312 mins |
# Approx. H 10800 nT |
DATE TIME DOY NAQH NAQE NAQZ NAQF |
2001-03-13 00:00:00.000 072 800.11 -100.23 381.51 54801.12
2001-03-13 00:00:01.000 072 800.31 -100.20 381.51 54802.32
2001-03-13 00:00:02.000 072 801.11 -101.23 99999.00 54803.22
2001-03-13 00:00:03.000 072 803.12 -100.23 99999.00 54803.43

Sample data header and data record for 5 millisecond values

The header record for Data Interval Type might read:
Data Interval Type 5 millisecond (instantaneous values).
Note filler for missing element.

DATE TIME DOY NAQX NAQY NAQZ NAQF |
2001-03-13 00:00:00.000 072 10800.11 -6100.23 53381.51 99999.00
2001-03-13 00:00:00.005 072 10800.31 -6100.20 53381.51 99999.00
2001-03-13 00:00:00.010 072 10801.11 -6101.23 53381.50 54801.10
2001-03-13 00:00:00.015 072 10803.12 -6100.23 99999.00 54801.24




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