Helsinki University of Technology L-Band Airborne Synthetic Aperture Radiometer

Rautiainen, Kimmo; Kainulainen, Juha; Auer, T.; Pihlflyckt, J.; Kettunen, J.; Hallikainen, M.

doi:10.1109/tgrs.2007.914805

Cited by 64 publications

(31 citation statements)

References 14 publications

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“…Due to a technical problem with some receivers, SMOSillo was no longer available, and in subsequent studies we used COSMOS-OS data acquired with the HUT-2D (HUT airborne U-shaped 2D L-band radiometer, [41]) mounted on the Skyvan, on August 13th and 15th, 2007 using the HUT-2D. Additionally, a vessel navigating at the same time along the aircraft ground-track measured sea surface temperature with a manual digital thermometer and surface water samples were collected every 150 m, to be analyzed later by the Finnish Marine Research Institute.…”

Section: Early Sea Surface Salinity Retrievals Using Two-dimensional mentioning

confidence: 99%

Review of the CALIMAS Team Contributions to European Space Agency’s Soil Moisture and Ocean Salinity Mission Calibration and Validation

et al. 2012

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This work summarizes the activities carried out by the SMOS (Soil Moisture and Ocean Salinity) Barcelona Expert Center (SMOS-BEC) team in conjunction with the CIALE/Universidad de Salamanca team, within the framework of the European Space Agency (ESA) CALIMAS project in preparation for the SMOS mission and during its first year of operation. Under these activities several studies were performed, ranging from Level 1 (calibration and image reconstruction) to Level 4 (land pixel disaggregation techniques, by means of data fusion with higher resolution data from optical/infrared sensors). Validation of SMOS salinity products by means of surface drifters developed ad-hoc, and soil moisture products over the REMEDHUS site (Zamora, Spain) are also presented. Results of other preparatory activities carried out to improve the performance of eventual SMOS follow-on missions are presented, including GNSS-R to infer the sea state correction needed for improved ocean salinity retrievals and land surface parameters. Results from CALIMAS show a satisfactory performance of the MIRAS instrument, the accuracy and efficiency of the algorithms implemented in the ground data processors, and explore the limits of spatial resolution of soil moisture products using data fusion, as well as the feasibility of GNSS-R techniques for sea state determination and soil moisture monitoring.

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Section: Early Sea Surface Salinity Retrievals Using Two-dimensional mentioning

confidence: 99%

Review of the CALIMAS Team Contributions to European Space Agency’s Soil Moisture and Ocean Salinity Mission Calibration and Validation

et al. 2012

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“…The interferometric radiometer HUT-2D [6], owned by the Aalto University, consists of 36 receivers on a U-shaped platform, measuring at incidence angles in the range from 0° to about 40°. Spatial ground resolution is about ten times higher than that of EMIRAD with a pixel size of about 300 m and a swath width across track of about 1 km.…”

Section: Hut-2dmentioning

confidence: 99%

Comparing data of two airborne L-band radiometers with different spatial resolution over a heterogeneous land surface

Dall'Amico¹,

Kainulainen

Loew

et al. 2010

2010 IEEE International Geoscience and Remote Sensing Symposium

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“…Kainulainen (1) , K. Rautiainen (1) , P. Sievinen (1) , J. Seppänen (1) , E. Rouhe (1) , M. Hallikainen (1) , J. (2) , F. Schlenz (2) , A. Loew (3) , S. Bircher (4) , C. Montzka (5) (1) Aalto University, Department of Radio Science and Engineering, Espoo, Finland (2) University of Munich, Department of Geography, Munich, Germany (3) Max-Planck-Institute for Meteorology, Land in the Earth System, Hamburg, Germany (4) Technical University of Denmark, DTU Space, Microwaves and Remote Sensing (5) Research Centre Juelich, Institute of Chemistry and Dynamics of the Geosphere, Agrosphere Institute (ICG 4), Juelich, Germany…”

Section: Smos Calibration and Validation Activities With Airborne Intmentioning

confidence: 99%

SMOS calibration and validation activities with airborne interferometric radiometer HUT-2D during spring 2010

Kainulainen

Rautiainen

Sievinen

et al. 2010

2010 IEEE International Geoscience and Remote Sensing Symposium

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, K. Rautiainen, P. Sievinen, J. Seppänen, E. Rouhe, A. Loew(1) Aalto University, Department of Radio Science and Engineering, Espoo, Finland ABSTRACTIn this paper we present calibration and validation activities of European Space Agency's SMOS mission, which utilize airborne interferomentric L-band radiometer system HUT-2D of the Aalto University. During spring 2010 the instrument was used to measure three SMOS validation target areas, one in Denmark and two in Germany. We present these areas shortly, and describe the airborne activities. We show some exemplary measurements of the radiometer system and demonstrate the studies using the data.

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Helsinki University of Technology L-Band Airborne Synthetic Aperture Radiometer

Cited by 64 publications

References 14 publications

Review of the CALIMAS Team Contributions to European Space Agency’s Soil Moisture and Ocean Salinity Mission Calibration and Validation

Review of the CALIMAS Team Contributions to European Space Agency’s Soil Moisture and Ocean Salinity Mission Calibration and Validation

Comparing data of two airborne L-band radiometers with different spatial resolution over a heterogeneous land surface

SMOS calibration and validation activities with airborne interferometric radiometer HUT-2D during spring 2010

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