20251217
13245800
1.0
ISO 19139 Metadata Implementation Specification GML3.2
FALSE
150000000
5000
StStephen_TMI.ers
002
2417740.000000
2504060.000000
7330180.000000
7421020.000000
1
Projected
GCS_North_American_1983_CSRS
Linear Unit: Meter (1.000000)
NAD_1983_CSRS_New_Brunswick_Stereographic
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32
FALSE
None
1
ER Mapper
TRUE
continuous
floating point
-999999
20251218
13103300
20251218
13114600
ISO19139
Amirabbas Karbalaeiramezanali
GSB
amirabbas.karbalaeiramezanali@gnb.ca
Serge Allard
GSB
Serge.Allard@gnb.ca
Serge Alard
Serge Allard
Serge Allard
Hernan Ugalde
hernan.ugalde@dipgeosciences.com
Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.1.14362
StStephen_TMI.ers
1
-67.557891
-66.447783
45.789402
44.967235
A grid of total magnetic intensity (TMI) from the 2001 St. Stephen airborne magnetic survey, reprocessed and projected to NB Stereographic Double, NAD83.
A grid of total magnetic intensity (TMI) from the 2001 St. Stephen airborne magnetic survey, reprocessed and projected to NB Stereographic Double, NAD83.This dataset contains the total magnetic intensity (TMI) data acquired during the 2001 St. Stephen airborne magnetic survey. TMI reflects variations in the Earth's magnetic field caused by differences in magnetic mineral content and bedrock magnetization, making it valuable for mapping lithological boundaries, structural features, and potential mineralized zones. As part of the 2025 reprocessing work, the original magnetic data were microlevelled to reduce line noise and levelling inconsistencies, improving the clarity and continuity of geological patterns. The resulting TMI grid was then reprojected to the NB Stereographic Double coordinate system to ensure consistency with New Brunswick’s high-resolution magnetic compilation.The TMI grid was produced by microlevelling the original TMI data (Mag_miclev), gridding the corrected magnetic values, and reprojecting the dataset from its original NAD83 UTM Zone 19N coordinates into NB Stereographic Double, NAD83.Data created Sept 2025.
NB Dept of Natural Resources, GSB Section
2158
40.000000
2271
40.000000
2
1
0
2417740.000000 7330180.000000
2417740.000000 7421020.000000
2504060.000000 7421020.000000
2504060.000000 7330180.000000
2460900.000000 7375600.000000
Band_1
56282.050781
53638.144531
32
Raster Dataset
dataset
EPSG
6.2(9.3.0.0)
20251218
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