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Andreas Colliander
Researcher at California Institute of Technology
Publications - 234
Citations - 6138
Andreas Colliander is an academic researcher from California Institute of Technology. The author has contributed to research in topics: Radiometer & Water content. The author has an hindex of 34, co-authored 205 publications receiving 4178 citations. Previous affiliations of Andreas Colliander include Helsinki University of Technology & Aalto University.
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Journal ArticleDOI
Validation of SMAP surface soil moisture products with core validation sites
Andreas Colliander,Thomas J. Jackson,Rajat Bindlish,S. Chan,Narendra N. Das,Seung-Bum Kim,Michael H. Cosh,R. S. Dunbar,Lenny Dang,L. Pashaian,Jun Asanuma,Kentaro Aida,Aaron A. Berg,Tracy Rowlandson,David D. Bosch,Todd G. Caldwell,Kelly K. Caylor,David C. Goodrich,H. K. Al Jassar,Ernesto Lopez-Baeza,José Martínez-Fernández,A. Gonzalez-Zamora,Stan Livingston,H. McNairn,A. Pacheco,Mahta Moghaddam,Carsten Montzka,Claudia Notarnicola,Georg Niedrist,Thierry Pellarin,John H. Prueger,Jouni Pulliainen,Kimmo Rautiainen,J. Ramos,Mark S. Seyfried,Patrick J. Starks,Zhongbo Su,Yijian Zeng,R. van der Velde,M. Thibeault,Wouter Dorigo,Mariette Vreugdenhil,Jeffrey P. Walker,Xiaoling Wu,Alessandra Monerris,Peggy O'Neill,Dara Entekhabi,Eni G. Njoku,Simon Yueh +48 more
TL;DR: The NASA Soil Moisture Active Passive (SMAP) mission has utilized a set of core validation sites as the primary methodology in assessing the soil moisture retrieval algorithm performance as mentioned in this paper.
Journal ArticleDOI
Assessment of the SMAP Passive Soil Moisture Product
Steven Chan,Rajat Bindlish,Peggy O'Neill,Eni G. Njoku,Thomas J. Jackson,Andreas Colliander,Fan Chen,Mariko Burgin,Scott Dunbar,Jeffrey R. Piepmeier,Simon Yueh,Dara Entekhabi,Michael H. Cosh,Todd G. Caldwell,Jeffrey P. Walker,Xiaoling Wu,Aaron A. Berg,Tracy Rowlandson,A. Pacheco,Heather McNairn,M. Thibeault,José Martínez-Fernández,A. Gonzalez-Zamora,Mark S. Seyfried,David D. Bosch,Patrick J. Starks,David C. Goodrich,John H. Prueger,Michael A. Palecki,Eric E. Small,Marek Zreda,Jean-Christophe Calvet,Wade T. Crow,Yann Kerr +33 more
TL;DR: The Level 2 Passive Soil Moisture Product (L2_SM_P) as discussed by the authors was developed by the National Aeronautics and Space Administration (NASA) soil moisture active passive (SMAP) satellite mission and is available from the Distributed Active Archive Center at the National Snow and Ice Data Center.
Journal ArticleDOI
Development and assessment of the SMAP enhanced passive soil moisture product
S. Chan,Rajat Bindlish,Peggy O'Neill,Thomas J. Jackson,E. Njoku,Scott Dunbar,Julian Chaubell,Jeffrey R. Piepmeier,Simon Yueh,Dara Entekhabi,Andreas Colliander,Fan Chen,Michael H. Cosh,Todd G. Caldwell,Jeffrey P. Walker,Aaron A. Berg,H. McNairn,M. Thibeault,José Martínez-Fernández,F. Uldall,Mark S. Seyfried,David D. Bosch,Patrick J. Starks,C. Holifield Collins,John H. Prueger,R. van der Velde,Jun Asanuma,Michael A. Palecki,Eric E. Small,Marek Zreda,Jean-Christophe Calvet,Wade T. Crow,Y. H. Kerr +32 more
TL;DR: This article covers the development and assessment of the SMAP Level 2 Enhanced Passive Soil Moisture Product (L2_SM_P_E) and affirmed that the Single Channel Algorithm using the V-polarized TB channel (SCA-V) delivered the best retrieval performance among the various algorithms implemented for L2-SM-P, a result similar to a previous assessment.
Journal ArticleDOI
The Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12): Prelaunch Calibration and Validation of the SMAP Soil Moisture Algorithms
Heather McNairn,Thomas J. Jackson,Grant Wiseman,Stéphane Bélair,Aaron A. Berg,Paul R. Bullock,Andreas Colliander,Michael H. Cosh,Seung-Bum Kim,Ramata Magagi,Mahta Moghaddam,Eni G. Njoku,Justin R. Adams,Saeid Homayouni,Emmanuel Ojo,Tracy Rowlandson,Jiali Shang,Kalifa Goïta,Mehdi Hosseini +18 more
TL;DR: Early results from the SMAP active radar retrieval methods are presented and demonstrate that relative and absolute soil moisture can be delivered by this approach.
Journal ArticleDOI
Assessment of the SMAP Level-4 surface and root-zone soil moisture product using in situ measurements
Rolf H. Reichle,Gabrielle De Lannoy,Qing Liu,Joseph V. Ardizzone,Andreas Colliander,Austin Conaty,Wade T. Crow,Thomas J. Jackson,Lucas A. Jones,John S. Kimball,Randal D. Koster,Sarith Mahanama,Edmond B. Smith,Aaron A. Berg,Simone Bircher,David D. Bosch,Todd G. Caldwell,Michael H. Cosh,A. Gonzalez-Zamora,Chandra Holifield Collins,Karsten Høgh Jensen,Stan Livingston,Ernesto Lopez-Baeza,José Martínez-Fernández,H. McNairn,Mahta Moghaddam,A. Pacheco,Thierry Pellarin,John H. Prueger,Tracy Rowlandson,Mark S. Seyfried,Patrick J. Starks,Zhongbo Su,M. Thibeault,Rogier van der Velde,Jeffrey P. Walker,Xiaoling Wu,Yijian Zeng +37 more
TL;DR: The Level-4 Surface and Root-Zone Soil Moisture (L4_SM) data product is generated by assimilating SMAP L-band brightness temperature observations into the NASA Catchment land surface model as mentioned in this paper.