Refurbishment of the HUTRAD system

Janne Lahtinen, Josu Uusitalo, Henri Servomaa, Sampo Salo, Huy Nguyen, Jorgen Pihlflyckt, Kimmo Havia, Matti Vaaja, Kimmo Rautiainen, Jaan Praks, Juha Lemmetyinen

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


The lower frequency system of the legacy airborne HUTRAD radiometer was refurbished successfully for the CIMR Arctic Airborne Campaign (CIMREx). The refurbished system with dual-polarization 6.8 GHz, 10.65, and 18.7 GHz receivers is compatible with the widely used DHC-6 Twin Otter aircraft and with the Arctic conditions. The refurbished system has approximately the same performance as the original system developed in the mid-1990s, with the exception of wider antenna beams. Due to schedule and budgetary constraints, as much of the original system was maintained as possible. However, each of the three receivers has now an integrated antenna and is built into an identical (commercial) housing. Therefore, it is possible to use only a subset of the whole receiver ensemble if needed. Also, one or more of these original three receivers can be replaced with another receiver that has a different frequency, for example. The adopted modular concept makes the system a versatile tool for cryosphere research.

Original languageEnglish
Title of host publication16th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment, MicroRad 2020 - Proceedings
Number of pages4
ISBN (Electronic)9781728170930
Publication statusPublished - 16 Nov 2020
MoE publication typeA4 Article in a conference publication
EventSpecialist Meeting on Microwave Radiometry and Remote Sensing of the Environment - Virtual, Online, Firenze, Italy
Duration: 16 Nov 202020 Nov 2020
Conference number: 16


ConferenceSpecialist Meeting on Microwave Radiometry and Remote Sensing of the Environment
Abbreviated titleMIcroRad


  • Microwave remote sensing
  • Radiometer

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