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summary: Data sourced from the FROGTECH_NZ_ECS_SEEBASE product in the NZP&M 2013 Block Offer Data Pack. The magnetic grid was generated by FROGTECH from the World...
snippet: Data sourced from the FROGTECH_NZ_ECS_SEEBASE product in the NZP&M 2013 Block Offer Data Pack. The magnetic grid was generated by FROGTECH from the World...
accessInformation: FROGTECH
thumbnail: thumbnail/thumbnail.png
typeKeywords: ["Data","Service","Image Service","ArcGIS Server"]
description: Data sourced from the FROGTECH_NZ_ECS_SEEBASE product in the NZP&M 2013 Block Offer Data Pack.The magnetic grid was generated by FROGTECH from the World Digital Magnetic Anomaly Map (WDMAM) or EMAG3 (2007), a global 3-arc-minute resolution grid of the anomaly of the magnetic intensity at an altitude of 5 km above mean sea level. It was compiled from satellite, marine, aeromagnetic and ground magnetic surveys. Information on this dataset can be found in http://www.geomag.us/models/wdmam.html The TMI magnetic data was Reduced to the Pole (RTP). The RTP image showed numerous noise and artefacts which were further attenuated by applying a Low Pass (20Km) filter. This filter passes low frequencies but substantially attenuates (or reduces) frequencies higher than 20km, emphasizing magnetic anomalies with wavelengths greater than 20km. Caution is warranted
licenseInfo:
catalogPath:
title: MAGNETICS_WDMAM_RTP_LP20KM
type: Image Service
url: https://gis.gns.cri.nz/server/admin/geophysical/magnetics_wdmam_rtp_lp20km/ImageServer
tags: ["nz. gns. magetic. anomaly. map. frogtech."]
culture: en-US
name: magnetics_wdmam_rtp_lp20km
guid:
spatialReference: NZGD_2000_New_Zealand_Transverse_Mercator