Chlorophyll-a Estimation in Turbid Waters Using Combined SAR Data With Hyperspectral Reflectance Data: A Case Study in Lake Taihu, China. - Zhang, Yuanzhi; Hallikainen, Martti; Zhang, Hongsheng; Duan, Hongtao; Li, Yu; Liang, X. San (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2018)

Multi-Sensor Sar Data for Improved Modeling of Microwave Brightness Temperature over Boreal Forest. - Antropov, Oleg; Seppänen, Jaakko; Hallikainen, Martti; Praks, Jaan; Jagdhuber, Thomas (2018)

Comparison of Experimental Brightness Temperatures for Snow on Lake Ice with Those for Snow on Terrain. - Hallikainen, Martti; Vaaja, Matti; Seppänen, Jaakko; Praks, Jaan (2018)

Measurements and Simulation of a Concentric Raised Bog With a 1.4-GHz Radiometer. - Seppänen, Jaakko; Praks, Jaan; Sievinen, Pauli; Hakkarainen, Anssi; Hallikainen, Martti (IEEE Geosci. Remote. Sens. Lett., 2017)

Improved Characterization of Forest Transmissivity Within the L-MEB Model Using Multisensor SAR Data. - Seppänen, Jaakko; Antropov, Oleg; Jagdhuber, Thomas; Hallikainen, Martti; Heiskanen, Janne; Praks, Jaan (IEEE Geosci. Remote. Sens. Lett., 2017)

Foreword to the Special Issue on the 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad 2016). - Hallikainen, Martti T.; Praks, Jaan; Shi, Jiancheng; Colliander, Andreas (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2017)

Retardation Plate for the Calibration of a Fully Polarimetric Radiometer: Determination of Characteristics. - Lahtinen, Janne; Hallikainen, Martti T. (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2017)

Soil Moisture Retrievals Over Partially Forested Areas in Aurajoki Catchment, Western Finland. - Seppänen, Jaakko; Jakkila, Juho; Praks, Jaan; Hallikainen, Martti T. (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2017)

Microwave brightness temperature of snow on terrain and lake ice revisited: Data and simulations. - Hallikainen, Martti T. (2017)

Measurements of Boreal Coniferous Forest Soil and Humus With an Airborne Radiometer. - Seppänen, Jaakko; Kainulainen, Juha; Heiskanen, Janne; Praks, Jaan; Hallikainen, Martti (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2016)

Microwave brightness temperature of snow: Observations and simulations. - Hallikainen, Martti; Lemmetyinen, Juha (2016)

Modeling Radar Attenuation by a Low Melting Layer With Optimized Model Parameters at C-Band. - Lerber, Annakaisa von; Moisseev, Dmitri; Leinonen, Jussi; Koistinen, Jarmo; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2015)

The Effect of Boreal Forest Canopy in Satellite Snow Mapping - A Multisensor Analysis. - Cohen, Juval; Lemmetyinen, Juha; Pulliainen, Jouni; Heinilä, Kirsikka; Montomoli, Francesco; Seppänen, Jaakko; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2015)

AALTO-1 earth observation cubesat mission - Educational outcomes. - Praks, Jaan; Kestila, Antti; Tikka, Tuomas; Leppinen, Hannu; Khurshid, O.; Hallikainen, Martti (2015)

Multifrequency microwave radiometry of snow on lake ice: Observations and simulations. - Hallikainen, Martti; Lemmetyinen, Juha; Vaaja, Matti; Seppänen, Jaakko; Praks, Jaan (2015)

Observation and Modeling of the Microwave Brightness Temperature of Snow-Covered Frozen Lakes and Wetlands. - Kontu, Anna; Lemmetyinen, Juha; Pulliainen, Jouni; Seppänen, Jaakko; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2014)

Land Cover and Soil Type Mapping From Spaceborne PolSAR Data at L-Band With Probabilistic Neural Network. - Antropov, Oleg; Rauste, Yrjö; Astola, Heikki; Praks, Jaan; Häme, Tuomas; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2014)

Brightness temperature behavior of snow on lake ice over a wide frequency range. - Hallikainen, Martti; Vaaja, Matti; Seppänen, Jaakko; Hakkarainen, Anssi; Kainulainen, Juha (2014)

Validation of SMOS soil moisture retrievals in Aurajoki catchment, Western Finland. - Seppänen, Jaakko; Hallikainen, Martti; Jakkila, Juho (2014)

Microwave Dielectric Properties of Materials. - Hallikainen, Martti (2014)

Morphological Database of Paris for Atmospheric Modeling Purposes. - Tack, Andreas; Koskinen, Jarkko; Hellsten, Antti; Sievinen, Pauli; Esau, Igor; Praks, Jaan; Kukkonen, Jaakko; Hallikainen, Martti (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2012)

Radiometric Performance of the SMOS Reference Radiometers - Assessment After One Year of Operation. - Kainulainen, Juha; Colliander, Andreas; Closa, Josep; Martín-Neira, Manuel; Oliva, Roger; Buenadicha, Guillermo; Alcaine, Pilar Rubiales; Hakkarainen, Anssi; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2012)

LIDAR-Aided SAR Interferometry Studies in Boreal Forest: Scattering Phase Center and Extinction Coefficient at X- and L-Band. - Praks, Jaan; Antropov, Oleg; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2012)

Multifrequency microwave radiometer measurements of snow on lake ice. - Hallikainen, Martti; Vaaja, Matti; Lerber, Annakaisa von; Kainulainen, Juha; Seppänen, Jaakko; Lemmetyinen, Juha (2012)

Moisture retrievals of boreal forest soil using HUT-2D synthetic aperture radiometer. - Seppänen, Jaakko; Kainulainen, Juha; Hallikainen, Martti (2012)

Boreal forest tree height estimation from interferometric TanDEM-X images. - Praks, Jaan; Hallikainen, Martti; Antropov, Oleg; Molina, Daniel (2012)

Thin sea ice identification in the Kara Sea using AMSR-E data. - Lerber, Annakaisa von; Mäkynen, Marko; Similä, Markku; Sievinen, Pauli; Hallikainen, Martti T. (2012)

Peatland delineation under forest canopy with polsar data using model based decomposition technique. - Antropov, Oleg; Rauste, Yrjö; Praks, Jaan; Hallikainen, Martti; Häme, Tuomas (2012)

GRS-S Awards Presented at IGARSS 2009. - Hallikainen, Martti; Wiesbeck, Werner; Raney, R. Keith; Tomiyasu, Kiyo; Pampaloni, Paolo; Lang, Roger H.; Seidel, Klaus; Elachi, Charles; Ishimaru, Akiro; Keydel, Wolfgang; Reagan, John (IEEE Trans. Geosci. Remote. Sens., 2011)

Experimental Study on Radiometric Performance of Synthetic Aperture Radiometer HUT-2D - Measurements of Natural Targets. - Kainulainen, Juha; Rautiainen, Kimmo; Lemmetyinen, Juha; Seppänen, Jaakko; Sievinen, Pauli; Takala, Matias; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2011)

Detection of a Sea Surface Salinity Gradient Using Data Sets of Airborne Synthetic Aperture Radiometer HUT-2-D and a GNSS-R Instrument. - Kainulainen, Juha; Rautiainen, Kimmo; Lemmetyinen, Juha; Hallikainen, Martti T.; Martín-Porqueras, Fernando; Martín-Neira, Manuel (IEEE Trans. Geosci. Remote. Sens., 2011)

Modeling melting layer radar observations at GPM frequencies; comparison to measurements. - Lerber, Annakaisa von; Moisseev, Dmitri; Leinonen, Jussi; Tyynela, Jani; Chandrasekar, V.; Hallikainen, Martti T. (2011)

Synthetic aperture radiometer measurements of freezing soil. - Seppänen, Jaakko; Kainulainen, Juha; Hallikainen, Martti; Lemmetyinen, Juha; Rautiainen, Kimmo (2011)

Lessons learned from HUT-2D L-band airborne demonstrator. - Kainulainen, Juha; Rautiainen, Kimmo; Hallikainen, Martti T. (2011)

Microwave emission signature of snow-covered lake ice. - Hallikainen, Martti T.; Sievinen, Pauli; Seppänen, Jaakko; Vaaja, Matti; Lerber, Annakaisa von; Rouhe, Erkka; Lemmetyinen, Juha (2011)

Aalto-1 - An experimental nanosatellite for hyperspectral remote sensing. - Praks, Jaan; Kestila, Antti; Hallikainen, Martti; Saari, Heikki; Antila, Jarkko; Janhunen, Pekka; Vainio, Rami (2011)

SMOS calibration and validation activities with airborne interferometric radiometer HUT-2D during spring 2010. - Kainulainen, Juha; Rautiainen, Kimmo; Sievinen, Pauli; Seppänen, Jaakko; Rouhe, Erkka; Hallikainen, Martti; Dall'Amico, Johanna T.; Schlenz, Florian; Loew, Alexander; Bircher, Alexander; Montzka, Carsten (2010)

Polarimetric sar image visualization and interpretation with covariance matrix invariants. - Praks, Jaan; Hallikainen, Martti; Koeniguer, Elise Colin (2010)

Modeling attenuation of melting hydrometeors with a method based on volume integral equations. - Lerber, Annakaisa von; Piepponen, Timo; Koskinen, Jarkko; Moisseev, Dmitri; Kestilä, Dmitri; Tyynela, Jani; Nousiainen, Timo; Koistinen, Jarmo; Sihvola, Ari; Ylä-Oijala, Pasi; Praks, Jaan; Hallikainen, Martti; et al. (2010)

Studies of radio frequency interference at L-band using an airborne 2-D interferometric radiometer. - Hallikainen, Martti; Kainulainen, Juha; Seppänen, Jaakko; Hakkarainen, Anssi; Rautiainen, Kimmo (2010)

Using Multilook Averaging for Coherently Modeled Scattering From a Pine Tree at L-Band. - Praks, Jaan; Sarvas, Jukka; Hallikainen, Martti; Pulliainen, Jouni (IEEE Geosci. Remote. Sens. Lett., 2009)

Comparison of SAR-Based Snow-Covered Area Estimation Methods for the Boreal Forest Zone. - Luojus, Kari; Pulliainen, Jouni; Cutrona, Alberto Blasco; Metsämäki, Sari; Hallikainen, Martti T. (IEEE Geosci. Remote. Sens. Lett., 2009)

Simulation of ASIRAS Altimeter Echoes for Snow-Covered First-Year Sea Ice. - Mäkynen, Marko; Hallikainen, Martti T. (IEEE Geosci. Remote. Sens. Lett., 2009)

Enhanced SAR-Based Snow-Covered Area Estimation Method for Boreal Forest Zone. - Luojus, Kari; Pulliainen, Jouni; Metsämäki, Sari; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2009)

A Comparison of Airborne Microwave Brightness Temperatures and Snowpack Properties Across the Boreal Forests of Finland and Western Canada. - Lemmetyinen, Juha; Derksen, Chris; Pulliainen, Jouni; Strapp, J. Walter; Toose, Peter; Walker, Anne E.; Tauriainen, Simo; Pihlflyckt, Jörgen; Kärnä, Juha-Petri; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2009)

Alternatives to Target Entropy and Alpha Angle in SAR Polarimetry. - Praks, Jaan; Koeniguer, Elise Colin; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2009)

GRS-S Awards Presented at IGARSS 2008. - Hallikainen, Martti; Wiesbeck, Werner; Raney, R. Keith; Tomiyasu, Kiyo; Yamaguchi, Yoshio; Lang, Roger H.; Seidel, Klaus (IEEE Trans. Geosci. Remote. Sens., 2009)

Sea Ice SAR Classification based on Edge Features. - Karvonen, Juha; Hallikainen, Martti (2009)

Experimental and Modeling Studies of Microwave Remote Sensing of Seasonal Snow. - Hallikainen, Martti; Lemmetyinen, Juha; Sievinen, Pauli (2009)

Soil Moisture Retrieval from HUT-2D Synthetic Aperture Radiometer Data. - Seppänen, Jaakko; Kainulainen, Juha; Lemmetyinen, Juha; Rautiainen, Kimmo; Hallikainen, Martti; Mäkynen, Marko (2009)

Boreal Forest Height Estimation with SAR Interferometry and Laser Measurements. - Praks, Jaan; Hallikainen, Martti; Hyyppä, Juha; Seppänen, Jaakko (2009)

The Atmosphere Influence to AMSR-E Measurements over Snow-covered Areas: Simulation and Experiments. - Qiu, Yubao; Shi, Jiancheng; Lemmetyinen, Juha; Kontu, Anna; Pulliainen, Jouni; Guo, Huadong; Wang, James R.; Jiang, Lingmei; Hallikainen, Martti; Zhang, Li (2009)

Sea Surface Salinity Retrieval Demonstration using Datasets of Synthetic Aperture Radiometer HUT-2D. - Kainulainen, Juha; Rautiainen, Kimmo; Lemmetyinen, Juha; Hallikainen, Martti; Martín-Porqueras, Fernando; Martín-Neira, Manuel (2009)

Experimental Validation Activities of HUT Snow Emission Model. - Lemmetyinen, Juha; Kontu, Anna; Qiu, Yubao; Pulliainen, Jouni; Hallikainen, Martti (2009)

Urban Morphology Retrieval Bymeansofremote Sensing for the Modelling of Atmospheric Dispersion and Micro-meteorology. - Sievinen, Pauli; Praks, Jaan; Koskinen, Jarkko; Hallikainen, Martti; Kukkonen, Jaakko; Hellsten, Antti (2009)

Helsinki University of Technology L-Band Airborne Synthetic Aperture Radiometer. - Rautiainen, Kimmo; Kainulainen, Juha; Auer, Tuomo; Pihlflyckt, Jörgen; Kettunen, Jani; Hallikainen, Martti (IEEE Trans. Geosci. Remote. Sens., 2008)

Baltic Sea Ice Thickness Charts based on Thermodynamic Snow/Ice Model, C-band SAR Classification and Ice Motion Detection. - Karvonen, Juha; Cheng, Bin; Similä, Markku; Hallikainen, Martti (2008)

Development of SAR-Based Snow-Covered Area Estimation Method for Borel Forest Zone. - Luojus, Kari; Pulliainen, Jouni; Metsämäki, Sari; Molera, Guifre; Nakari, Risto; Kärnä, Juha-Petri; Hallikainen, Martti (2008)

Results from Microwave Radiometer Campaign of Seasonal Snow and Comparison with Emission Models. - Hallikainen, Martti; Lahtinen, Panu; Piepponen, Timo; Honkavaara, Lauri; Schäfer, Aleksis (2008)

SAR Coherence Tomography for Boreal Forest with Aid of Laser Measurements. - Praks, Jaan; Kugler, Florian; Hyyppä, Juha; Papathanassiou, Konstantinos; Hallikainen, Martti (2008)

Simulation of ASIRAS Multilooked Echoes for Snow Covered Sea Ice. - Mäkynen, Marko; Hallikainen, Martti (2008)

The AMSR-E Instantaneous Emissivity Estimation and its Correlation, Frequency Dependency Analysis over Different Land Covers. - Qiu, Yubao; Shi, Jiancheng; Hallikainen, Martti; Lemmetyinen, Juha; Pulliainen, Jouni; Koskinen, Jarkko; Kontu, Anna (2008)

Determination of Snow Emission on Lake Ice from Airborne Passive Microwave Measurements. - Kontu, Anna; Kemppainen, Sami; Lemmetyinen, Juha; Pulliainen, Jouni; Hallikainen, Martti (2008)

Comparison Between Envisat SAR and 3-D Laser Scanner Statistics for the Baltic Sea Ice. - Similä, Markku; Mäkynen, Marko; Heiler, Istvan; Hallikainen, Martti (2008)

First 2-D Interferometric Radiometer Imaging of the Earth From an Aircraft. - Kainulainen, Juha; Rautiainen, Kimmo; Tauriainen, Simo; Auer, Tuomo; Kettunen, Jani; Hallikainen, Martti (IEEE Geosci. Remote. Sens. Lett., 2007)

Height Estimation of Boreal Forest: Interferometric Model-Based Inversion at L- and X-Band Versus HUTSCAT Profiling Scatterometer. - Praks, Jaan; Kugler, Florian; Papathanassiou, Konstantinos P.; Hajnsek, Irena; Hallikainen, Martti (IEEE Geosci. Remote. Sens. Lett., 2007)

Snow-Covered Area Estimation Using Satellite Radar Wide-Swath Images. - Luojus, Kari; Pulliainen, Jouni; Metsämäki, Sari; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2007)

Comparisons Between SAR Backscattering Coefficient and Results of a Thermodynamic Snow/Ice Model for the Baltic Sea Land-Fast Sea Ice. - Mäkynen, Marko; Cheng, Bin; Similä, Markku; Vihma, Timo; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2007)

Development and Calibration of SMOS Reference Radiometer. - Colliander, Andreas; Ruokokoski, Lasse; Suomela, Jani; Veijola, Katriina; Kettunen, Jani; Kangas, Ville; Aalto, Aleksi; Levander, Mikael; Greus, Heli; Hallikainen, Martti T.; Lahtinen, Janne (IEEE Trans. Geosci. Remote. Sens., 2007)

Sensitivity of Airborne 36.5-GHz Polarimetric Radiometer's Wind-Speed Measurement to Incidence Angle. - Colliander, Andreas; Lahtinen, Janne; Tauriainen, Simo; Pihlflyckt, Jörgen; Lemmetyinen, Juha; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2007)

SMOS Calibration Subsystem. - Lemmetyinen, Juha; Uusitalo, Josu; Kainulainen, Juha; Rautiainen, Kimmo; Fabritius, Nestori; Levander, Mikael; Kangas, Ville; Greus, Heli; Pihlflyckt, Jörgen; Kontu, Anna; Kemppainen, Sami; Colliander, Andreas; et al. (IEEE Trans. Geosci. Remote. Sens., 2007)

Radiometric performance of interferometric synthetic aperture radiometer HUT-2D. - Kainulainen, Juha; Rautiainen, Kimmo; Hallikainen, Martti; Takala, Matias (2007)

X-band extinction in boreal forest: Estimation by using E-SAR POLInSAR and HUTSCAT. - Praks, Jaan; Hallikainen, Martti; Kugler, Florian; Papathanassiou, Konstantinos P. (2007)

Use of quikscat ku-band scatterometer data for retrieval of seasonal snow characteristics in Finland. - Hallikainen, Martti; Sievinen, Pauli; Zhang, Yuanzhi; Halme, Pekka (2007)

Operational snow map production for whole eurasia using microwave radiometer and ground-based observations. - Kärnä, Juha-Petri; Lemmetyinen, Juha; Hallikainen, Martti; Lahtinen, Panu; Pulliainen, Jouni; Takala, Matias (2007)

Ground calibration of SMOS: NIR and CAS. - Colliander, Andreas; Lemmetyinen, Juha; Uusitalo, Josu; Suomela, Jani; Veijola, Katriina; Kontu, Anna; Kemppainen, Sami; Pihlflyckt, Jörgen; Rautiainen, Kimmo; Hallikainen, Martti; Lahtinen, Janne (2007)

Helsinki University of Technology Synthetic Aperture Radiometer -HUT-2D. - Rautiainen, Kimmo; Kainulainen, Juha; Auer, Tuomo; Tauriainen, Simo; Hallikainen, Martti (2007)

Interpretation of C-band SAR backscattering coefficient time series for the Baltic Sea landfast sea ice using a 1-D thermodynamic snow/ice model. - Mäkynen, Marko; Cheng, Bin; Similä, Markku; Vihma, Timo; Hallikainen, Martti (2007)

Assimilating spaceborne radar and ground-based weather station data for operational snow-covered area estimation. - Luojus, Kari; Pulliainen, Jouni; Metsämäki, Sari; Anttila, Saku; Hallikainen, Martti (2007)

Thermal stabilized front-end PCB with active cold calibration load for L-band radiometer. - Kemppainen, Sami; Lemmetyinen, Juha; Auer, Tuomo; Colliander, Andreas; Aalto, Aleksi; Rautiainen, Kimmo; Hallikainen, Martti (2007)

Accuracy assessment of SAR data-based snow-covered area estimation method. - Luojus, Kari; Pulliainen, Jouni; Metsämäki, Sari; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2006)

Calibration of End-to-End Phase Imbalance of Polarimetric Radiometers. - Colliander, Andreas; Kettunen, Jani; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2006)

Dependence between standard deviation and measurement length for C-band backscattering signatures of the Baltic Sea ice. - Mäkynen, Marko; Similä, Markku; Manninen, A. Terhikki; Hallikainen, Martti T.; Karvonen, Juha A. (IEEE Trans. Geosci. Remote. Sens., 2006)

A Comparison of Airborne Passive Microwave Brightness Temperatures and Snowpack Properties across the Boreal Forests of Finland and Western Canada. - Derksen, Chris; Strapp, J. Walter; Walker, Anne E.; Lemmetyinen, Juha; Hallikainen, Martti; Pulliainen, Jouni (2006)

C-Band SAR Based Estimation of Baltic Sea Ice Thickness Distributions. - Similä, Markku; Karvonen, Juha; Haas, Christian; Hallikainen, Martti (2006)

Mapping of Snow Water Equivalent and Snow Coverage from Combined EO and in situ Data for Climatic Studies and Hydrological Forecasting Models. - Pulliainen, Jouni; Kärnä, Juha-Petri; Hallikainen, Martti; Luojus, Kari; Metsämäki, Sari; Huttunen, Markus; Anttila, Saku (2006)

Development of Techniques to Retrieve Snow Covered Area (SCA) in Boreal Forests from Space-borne Microwave Observations. - Luojus, Kari; Kärnä, Juha-Petri; Hallikainen, Martti; Pulliainen, Jouni (2006)

Results from a Ground-Based Microwave Multi-Frequency Radiometer Campaign of Seasonal Snow in Finland. - Hallikainen, Martti; Lahtinen, Panu; Piepponen, Timo; Honkavaara, Lauri; Schäfer, Aleksis (2006)

L-band Polarimetric Interferometry in Boreal Forest Parameter Estimation, a Case Study. - Praks, Jaan; Hallikainen, Martti; Kugler, Florian; Papathanassiou, Kostas; Hajnsek, Irena (2006)

SMOS Calibration Subsystem. - Lemmetyinen, Juha; Uusitalo, Josu; Rautiainen, Kimmo; Kainulainen, Juha; Fabritius, Nestori; Levander, Mikael; Kangas, Ville; Greus, Heli; Pihlflyckt, Jörgen; Kontu, Anna; Kemppainen, Sami; Hallikainen, Martti; et al. (2006)

Foreword to the Special Issue on the 8th Specialist Meeting on Microwave Radiometry and Remote Sensing Applications (MicroRad04). - Pierdicca, Nazzareno; Marzano, Frank Silvio; Hallikainen, Martti T.; Pampaloni, Paolo; Westwater, Ed R. (IEEE Trans. Geosci. Remote. Sens., 2005)

MIRAS reference radiometer: a fully polarimetric noise injection radiometer. - Colliander, Andreas; Tauriainen, Simo; Auer, Tuomo; Kainulainen, Juha; Uusitalo, Josu; Toikka, Martti; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2005)

Investigating of snow wetness parameter using a two-phase backscattering model. - Arslan, Ali Nadir; Hallikainen, Martti T.; Pulliainen, Jouni (IEEE Trans. Geosci. Remote. Sens., 2005)

Snow covered area estimation using satellite radar wide swath images. - Luojus, Kari; Pulliainen, Jouni; Metsämäki, Sari; Hallikainen, Martti (2005)

Feasibility of satellite Ku-band scatterometer data for retrieval of seasonal snow characteristics in Finland. - Hallikainen, Martti; Lahtinen, Panu; Zhang, Yuanzhi; Takala, Matias; Pulliainen, Jouni (2005)

Estimation of snow water equivalent and snow depth in boreal forests by assimilating AMSR-E observations with in situ observations. - Pulliainen, Jouni; Hallikainen, Martti; Anttila, Saku; Metsämäki, Sari (2005)

Automatic detection of water bodies from spaceborne SAR images. - Ahtonen, Pekka; Hallikainen, Martti (2005)

On SAR-based statistical ice thickness estimation in the baltic sea. - Similä, Markku; Karvonen, Juha; Hallikainen, Martti; Haas, Christian (2005)

Spectrometer-derived variability for snow covered forest reflectances in the melting period. - Eskelinen, Miia; Pulliainen, Jouni; Hallikainen, Martti (2005)

Temperature variation compensation in engineering model of MIRAS reference radiometer. - Colliander, Andreas; Suomela, Jani; Ruokokoski, Lasse; Kangas, Ville; Aalto, Aleksi; Lahtinen, Janne; Hallikainen, Martti (2005)

Boreal forest coherence-based measures of interferometric pair suitability for operational stem volume retrieval. - Engdahl, Marcus E.; Pulliainen, Jouni; Hallikainen, Martti T. (IEEE Geosci. Remote. Sens. Lett., 2004)

Water quality classification of lakes using 250-m MODIS data. - Koponen, Sampsa S.; Kallio, Kari Y.; Pulliainen, Jouni; Vepsäläinen, Jenni; Pyhälahti, Timo; Hallikainen, Martti (IEEE Geosci. Remote. Sens. Lett., 2004)

Detection of oil pollution on sea ice with airborne and spaceborne spectrometer. - Praks, Jaan; Eskelinen, Miia; Pulliainen, Jouni; Pyhälahti, Timo; Hallikainen, Martti (2004)

Evaluation of in-orbit temperature variation on performance of MIRAS prototype noise injection radiometer. - Colliander, Andreas; Tauriainen, Simo; Auer, Tuomo; Uusitalo, Josu; Toikka, Martti; Hallikainen, Martti (2004)

Monitoring of soil moisture and vegetation water content variations in boreal forest from C-band SAR data. - Pulliainen, Jouni; Hari, Pertti; Hallikainen, Martti; Patrikainen, Niina; Perämäki, Martti; Kolari, Pasi (2004)

Investigation of the effect of variable viewing angle with airborne multiangular measurements. - Eskelinen, Miia; Pulliainen, Jouni; Praks, Jaan; Hallikainen, Martti (2004)

Retrieval of snow characteristics from spaceborne scatterometer data. - Hallikainen, Martti; Halme, Pekka; Lahtinen, Panu; Pulliainen, Jouni (2004)

Dependence between spatial statistics and distance for C-band backscattering signatures of the Baltic Sea ice. - Mäkynen, Marko; Manninen, A. Terhikki; Similä, Markku; Karvonen, Juha; Hallikainen, Martti (2004)

Accuracy assessment for HUT snow covered area estimation method. - Luojus, Kari; Pulliainen, Jouni; Hallikainen, Martti (2004)

Estimation of snow pack characteristics and snow covered area in boreal forests from ERS-2 SAR and Envisat ASAR data. - Pulliainen, Jouni; Luojus, Kari; Hallikainen, Martti; Metsämäki, Sari; Koskinen, Jarkko; Kärnä, Juha-Petri; Huttunen, Markus; Rasmus, Sirpa (2004)

HUT fully polarimetric calibration standard for microwave radiometry. - Lahtinen, Janne; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2003)

Water quality retrievals from combined Landsat TM data and ERS-2 SAR data in the Gulf of Finland. - Zhang, Yuanzhi; Pulliainen, Jouni; Koponen, Sampsa S.; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2003)

Fully polarimetric microwave radiometer for remote sensing. - Lahtinen, Janne; Pihlflyckt, Jörgen; Mononen, Ilkka; Tauriainen, Simo; Kemppinen, Martti; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2003)

Classification and retrieval of dry snow parameters by means of SMM/I data and artificial neural networks. - Tedesco, Marco; Pampaloni, Paolo; Pulliainen, Jouni; Hallikainen, Martti (2003)

Combined active and passive microwave remote sensing of snow in Finland. - Hallikainen, Martti T.; Halme, Pekka; Takala, Matias; Pulliainen, Jouni (2003)

Examination of forest polarimetric backscattering with coherent cylinder model. - Praks, Jaan; Pulliainen, Jouni; Ahtonen, Pekka; Hallikainen, Martti (2003)

Development of airborne aperture synthetic radiometer (HUT-2D). - Rautiainen, Kimmo; Butora, Robert; Auer, Tuomo; Kettunen, Jani; Kainulainen, Juha; Mononen, Ilkka; Beltrami, Diego; Hallikainen, Martti (2003)

Investigating relationship between correlation lengths and physical properties of wet snow. - Arslan, Ali Nadir; Pulliainen, Jouni; Hallikainen, Martti (2003)

Combined land-cover classification and stem volume estimation using multitemporal ERS tandem INSAR data. - Engdahl, Marcus E.; Pulliainen, Jouni; Hallikainen, Martti (2003)

Development and characterization of fully polarimetric noise injection radiometer for MIRAS. - Colliander, Andreas; Tauriainen, Simo; Auer, Tuomo; Kainulainen, Juha; Uusitalo, Josu; Toikka, Martti; Hallikainen, Martti (2003)

The use of airborne optical spectrometer data in snow cover monitoring. - Eskelinen, Miia; Metsämäki, Sari; Pulliainen, Jouni; Hallikainen, Martti; Praks, Jaan (2003)

Estimation of the beginning of snow melt period using SSM/I data. - Takala, Matias; Pulliainen, Jouni; Huttunen, Markus; Hallikainen, Martti (2003)

Incidence angle dependence of the statistical properties of C-band HH-polarization backscattering signatures of the Baltic Sea ice. - Mäkynen, Marko; Manninen, A. Terhikki; Similä, Markku; Karvonen, Juha A.; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2002)

Comparison of analog continuum correlators for remote sensing and radio astronomy. - Koistinen, Olli; Lahtinen, Janne; Hallikainen, Martti T. (IEEE Trans. Instrum. Meas., 2002)

Effects of temperature and moisture of snow and soil on SSM/I response to snow. - Hallikainen, Martti; Halme, Pekka; Takala, Matias; Pulliainen, Jouni (2002)

Assimilation of space-borne microwave radiometer and discrete ground-based data in snow depth mapping: a case study for northern Eurasia. - Pulliainen, Jouni; Takala, Matias; Hallikainen, Martti (2002)

Incidence angle dependence of the mean C-band HH-polarization backscattering signatures of the Baltic Sea ice. - Mäkynen, Marko; Manninen, A. Terhikki; Similä, Markku; Karvonen, Juha; Hallikainen, Martti (2002)

Estimation of boreal forest biomass from multi-temporal INSAR data by inverting an empirical backscattering-coherence model. - Pulliainen, Jouni; Engdahl, Marcus E.; Hallikainen, Martti (2002)

Detection of sea surface temperature (SST) using AVHRR data in the Gulf of Finland. - Zhang, Yuanzhi; Pulliainen, Jouni; Koponen, Sampsa S.; Hallikainen, Martti (2002)

Soil moisture retrieval by SMOS: a global feasibility study. - Pellarin, Thierry; Calvet, Jean-Christophe; Wigneron, Jean-Pierre; Simmonds, Lester P.; López-Baeza, Ernesto; Berger, Michael; Camps, Adriano; Chanzy, André; Ferrazzoli, Paolo; Hallikainen, Martti T.; Kerr, Yann H.; Mätzler, Christian; et al. (2002)

Scattering from wet snow by applying strong fluctuation theory. - Arslan, Ali Nadir; Wang, Huining; Koskinen, Jarkko; Pulliainen, Jouni; Hallikainen, Martti (2002)

The seasonal behavior of interferometric coherence in boreal forest. - Koskinen, Jarkko; Pulliainen, Jouni; Hyyppä, Juha; Engdahl, Marcus E.; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2001)

A Bayesian classification model for sea ice roughness from scatterometer data. - Similä, Markku; Arjas, Elja; Mäkynen, Marko; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 2001)

Measurements and modeling of vertical backscatter distribution in forest canopy. - Martinez, Jean-Michel; Floury, Nicolas; Toan, Thuy Le; Beaudoin, André; Hallikainen, Martti T.; Mäkynen, Marko (IEEE Trans. Geosci. Remote. Sens., 2000)

Landuse mapping with ERS SAR interferometry. - Strozzi, Tazio; Dammert, Patrik B. G.; Wegmüller, Urs; Martinez, Jean-Michel; Askne, Jan I. H.; Beaudoin, André; Hallikainen, Martti (IEEE Trans. Geosci. Remote. Sens., 2000)

Retrieval of biomass in boreal forests from multitemporal ERS-1 and JERS-1 SAR images. - Kurvonen, Lauri; Pulliainen, Jouni; Hallikainen, Martti (IEEE Trans. Geosci. Remote. Sens., 1999)

Development of a synergetic sea ice retrieval method for the ERS-1 AMI wind scatterometer and SSM/I radiometer. - Grandell, Jochen; Johannessen, Johnny A.; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 1999)

Textural information of multitemporal ERS-1 and JERS-1 SAR images with applications to land and forest type classification in boreal zone. - Kurvonen, Lauri; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 1999)

Multitemporal behavior of L- and C-band SAR observations of boreal forests. - Pulliainen, Jouni; Kurvonen, Lauri; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 1999)

HUT snow emission model and its applicability to snow water equivalent retrieval. - Pulliainen, Jouni; Grandell, Jochen; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 1999)

Calibration accuracy of the HUTSCAT airborne scatterometer. - Hyyppä, Juha; Mäkynen, Marko; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 1999)

Seasonal comparison of HUTSCAT ranging scatterometer and ERS-1 SAR microwave signatures of boreal forest zone. - Koskinen, Jarkko; Pulliainen, Jouni; Mäkynen, Marko; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 1999)

Passive microwave measurements of snow-covered forest areas in EMAC'95. - Kruopis, Nerijus; Praks, Jaan; Arslan, Ali Nadir; Alasalmi, Hanna M.; Koskinen, Jarkko; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 1999)

Application of ERS-1 wind scatterometer data to soil frost and soil moisture monitoring in boreal forest zone. - Pulliainen, Jouni; Manninen, A. Terhikki; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 1998)

Influence of land-cover category on brightness temperature of snow. - Kurvonen, Lauri; Hallikainen, Martti (IEEE Trans. Geosci. Remote. Sens., 1997)

Radar-derived standwise forest inventory. - Hyyppä, Juha; Pulliainen, Jouni; Hallikainen, Martti; Saatsi, Asko (IEEE Trans. Geosci. Remote. Sens., 1997)

The use of ERS-1 SAR data in snow melt monitoring. - Koskinen, Jarkko; Pulliainen, Jouni; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 1997)

Retrieval of surface temperature in boreal forest zone from SSM/I data. - Pulliainen, Jouni; Grandell, Jochen; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 1997)

Seasonal dynamics of C-band backscatter of boreal forests with applications to biomass and soil moisture estimation. - Pulliainen, Jouni; Mikhela, P. J.; Hallikainen, Martti T.; Ikonen, Jari-Pekka (IEEE Trans. Geosci. Remote. Sens., 1996)

Classification of Baltic Sea ice types by airborne multifrequency microwave radiometer. - Kurvonen, Lauri; Hallikainen, Martti (IEEE Trans. Geosci. Remote. Sens., 1996)

Backscattering properties of boreal forests at the C- and X-bands. - Pulliainen, Jouni; Heiska, Kari J. M.; Hyyppä, Juha; Hallikainen, Martti (IEEE Trans. Geosci. Remote. Sens., 1994)

A helicopter-borne eight-channel ranging scatterometer for remote sensing. I. System description. - Hallikainen, Martti; Hyyppä, Juha; Haapenen, Juhani; Tares, Teemu; Ahola, Pekka; Pulliainen, Jouni; Toikka, Martti (IEEE Trans. Geosci. Remote. Sens., 1993)

A helicopter-borne eight-channel ranging scatterometer for remote sensing. II. Forest inventory. - Hyyppä, Juha; Hallikainen, Martti (IEEE Trans. Geosci. Remote. Sens., 1993)

Development of geophysical retrieval algorithms for the MIMR. - Pulliainen, Jouni; Kärnä, Juha-Petri; Hallikainen, Martti (IEEE Trans. Geosci. Remote. Sens., 1993)

Comparison of algorithms for retrieval of snow water equivalent from Nimbus-7 SMMR data in Finland. - Hallikainen, Martti T.; Jolma, Petri A. (IEEE Trans. Geosci. Remote. Sens., 1992)

The theory and mechanical realization of an ideal scanning method for a single-channel imaging microwave radiometer. - Kemppinen, Martti; Hallikainen, Martti T. (IEEE Trans. Geosci. Remote. Sens., 1992)