Search Results - "Søbjærg, Sten"

CAROLS: a new airborne L-band radiometer for ocean surface and land observations by Zribi, Mehrez, Pardé, Mickael, Boutin, Jacquline, Fanise, Pascal, Hauser, Daniele, Dechambre, Monique, Kerr, Yann, Leduc-Leballeur, Marion, Reverdin, Gilles, Skou, Niels, Søbjærg, Sten, Albergel, Clement, Calvet, Jean Christophe, Wigneron, Jean Pierre, Lopez-Baeza, Ernesto, Rius, Antonio, Tenerelli, Joseph

“…The "Cooperative Airborne Radiometer for Ocean and Land Studies" (CAROLS) L-Band radiometer was designed and built as a copy of the EMIRAD II radiometer…”
Get full text

Effects of decimetre-scale surface roughness on L-band brightness temperature of sea ice by Miernecki, Maciej, Kaleschke, Lars, Maaß, Nina, Hendricks, Stefan, Søbjærg, Sten Schmidl

“…Sea ice thickness is an essential climate variable. Current L-Band sea ice thickness retrieval methods do not account for sea ice surface roughness that is…”
Get full text

SMOS sea ice product: Operational application and validation in the Barents Sea marginal ice zone by Kaleschke, Lars, Tian-Kunze, Xiangshan, Maaß, Nina, Beitsch, Alexander, Wernecke, Andreas, Miernecki, Maciej, Müller, Gerd, Fock, Björn H., Gierisch, Andrea M.U., Schlünzen, K. Heinke, Pohlmann, Thomas, Dobrynin, Mikhail, Hendricks, Stefan, Asseng, Jölund, Gerdes, Rüdiger, Jochmann, Peter, Reimer, Nils, Holfort, Jürgen, Melsheimer, Christian, Heygster, Georg, Spreen, Gunnar, Gerland, Sebastian, King, Jennifer, Skou, Niels, Søbjærg, Sten Schmidl, Haas, Christian, Richter, Friedrich, Casal, Tânia

“…Brightness temperatures at 1.4GHz (L-band) measured by the Soil Moisture and Ocean Salinity (SMOS) Mission have been used to derive the thickness of sea ice…”
Get full text

L-Band RFI as Experienced During Airborne Campaigns in Preparation for SMOS by Skou, N., Misra, S., Balling, J.E., Kristensen, S.S., Sobjaerg, S.S.

“…In support of the European Space Agency Soil Moisture and Ocean Salinity (SMOS) mission, a number of soil moisture and sea salinity campaigns, including…”
Get full text

Surveys and Analysis of RFI in Preparation for SMOS: Results from Airborne Campaigns and First Impressions from Satellite Data by Balling, J. E., Kristensen, S. S., Sobjaerg, S. S., Skou, N.

“…Several soil moisture and sea salinity campaigns, including airborne L-band radiometer measurements, have been carried out in preparation for the European…”
Get full text

Polarimetric radiometer configurations: potential accuracy and sensitivity by Skou, N., Laursen, B., Sobjaerg, S.

“…Ocean wind speed and direction can be assessed with a polarimetric radiometer system measuring the full set of Stokes parameters. There are two fundamentally…”
Get full text

The SMOS Mediterranean Ecosystem L-Band characterisation EXperiment (MELBEX-I) over natural shrubs by Cano, Aurelio, Saleh, Kauzar, Wigneron, Jean-Pierre, Antolín, Carmen, Balling, Jan E., Kerr, Yann H., Kruszewski, Alain, Millán-Scheiding, Cristina, Søbjærg, Sten Schmidl, Skou, Niels, López-Baeza, Ernesto

“…In the framework of ESA's SMOS mission (Soil Moisture and Ocean Salinity), many studies have been carried out over different land surface types to model their…”
Get full text

A novel L-band polarimetric radiometer featuring subharmonic sampling by Rotbøll, Jesper, Søbjærg, Sten Schmidl, Skou, Niels

“…A novel L‐band radiometer trading analog components for digital circuits has been designed, built and operated. It is a fully polarimetric radiometer of the…”
Get full text

Real-Time RFI Processor for Future Spaceborne Microwave Radiometers by Lahtinen, Janne, Kristensen, Steen Savstrup, Kovanen, Arhippa, Lehtinen, Kari, Uusitalo, Josu, Sobjaerg, Sten Schmidl, Skou, Niels, D'Addio, Salvatore

“…Anthropogenic radio frequency interference (RFI) within microwave radiometer bands is a serious problem in remote sensing. The problem is ever-increasing and…”
Get full text

Measurements on Active Cold Loads for Radiometer Calibration by Sobjaerg, S.S., Skou, N., Balling, J.E.

“…Two semiconductor active cold loads (ACLs) to be used as cold references in spaceborne microwave radiometers have been developed. An X-band frequency was…”
Get full text

N-parameter retrievals from L-band microwave observations acquired over a variety of crop fields by Parde, M., Wigneron, J.-P., Waldteufel, P., Kerr, Y.H., Chanzy, A., Sobjaerg, S.S., Skou, N.

“…A number of studies have shown the feasibility of estimating surface soil moisture from L-band passive microwave measurements. Such measurements should be…”
Get full text

Ultra-High-Performance C- and L-Band Radiometer System for Future Spaceborne Ocean Missions by Skou, Niels, Sobjaerg, Sten Schmidl, Kristensen, Steen Savstrup, Cappellin, Cecilia, Pontoppidan, Knud, de Lasson, Jakob Rosenkrantz, Ivashina, Marianna V., Iupikov, Oleg A.

“…A next-generation real-aperture spaceborne radiometer system for high-quality ocean measurements is discussed. Instead of illuminating the antenna reflector by…”
Get full text

A field experiment on microwave forest radiometry: L-band signal behaviour for varying conditions of surface wetness by Grant, J.P., Wigneron, J.-P., Van de Griend, A.A., Kruszewski, A., Søbjærg, S. Schmidl, Skou, N.

“…From July–December 2004 the experimental campaign ‘Bray 2004’ was conducted in the coniferous forest of Les Landes near Bordeaux, France, using a multi-angle…”
Get full text

Fully Polarimetric L-Band Brightness Temperature Signatures of Azimuthal Permittivity Patterns - Measurements and Model Simulations by Sobioerg, Sten Schmidl, Link, Moritz, Jagdhuber, Thomas, Montzka, Carsten, Jonard, Francois, Dill, Stephan, Peichl, Markus, Meyer, Thomas

“…L-Band microwave radiometry over land mainly focuses on observations of horizontally (H) and vertically (V) polarized brightness temperatures. However, it has…”
Get full text

Future High-Performance Spaceborne Microwave Radiometer Systems by Skou, Niels, Sobjarg, Sten S., Kristensen, Steen S.

“…In a traditional spaceborne microwave radiometer system with a scanning antenna, there is often a conflict between spatial and radiometric resolution…”
Get full text

The airborne EMIRAD L-band radiometer system by Sobjaerg, Sten S., Kristensen, Steen S., Balling, Jan E., Skou, Niels

“…This paper describes the EMIRAD L-band radiometer, developed in support of the ESA/SMOS mission. The instrument is a fully polarimetric, dual antenna system,…”
Get full text

Airborne L-Band Radiometer Mapping of the Dome-C Area in Antarctica by Skou, Niels, Kristensen, Steen Savstrup, Sobjaerg, Sten Schmidl, Balling, Jan E.

“…A 350 km × 350 km area near the Concordia station on the high plateau of Dome-C in Antarctica has been mapped by an airborne L-band radiometer system. The area…”
Get full text

Preparing for SMOS: Sea Salinity Campaigns and Results by Sobjaerg, Sten S., Balling, Jan, Kristensen, Steen S., Skou, Niels

“…Mapping of sea surface salinity, based on L-band radiometric measurements, is presently investigated as a preparation for space missions. Special concern is on…”
Get full text

RFI and SMOS: Preparatory campaigns and first observations from space by Balling, Jan E., Sobjoerg, Sten S., Kristensen, Steen S., Skou, Niels

“…In support of the ESA Soil Moisture and Ocean Salinity (SMOS) mission, a number of campaigns, including airborne L-band radiometer measurements, have been…”
Get full text

Performance of the Copernicus Imaging Microwave Radiometer On-Board RFI Processor by Kristensen, Steen Savstrup, Balling, Jan E., Sobjarg, Sten S., Skou, Niels

“…This paper presents the simulations needed to assess the performance of the Radio Frequency Interference (RFI) processor for the Copernicus Imaging Microwave…”
Get full text