Comparison of Airborne Passive and Active L-Band System (PALS) Brightness Temperature Measurements to SMOS Observations During the SMAP Validation Experiment 2012 (SMAPVEX12)

被引:28
作者
Colliander, Andreas [1 ]
Jackson, Thomas [2 ]
McNairn, Heather [3 ]
Chazanoff, Seth [1 ]
Dinardo, Steve [1 ]
Latham, Barron [1 ]
O'Dwyer, Ian [1 ]
Chun, William [1 ]
Yueh, Simon [1 ]
Njoku, Eni [1 ]
机构
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
[2] ARS, USDA, Hydrol & Remote Sensing Lab, Beltsville, MD 20705 USA
[3] Agr & Agri Food Canada, Sci & Technol Branch, Ottawa, ON K1A 0C6, Canada
关键词
Passive Active L-band System (PALS); SMAP Validation Experiment 2012 (SMAPVEX12); Soil moisture; Soil Moisture Active Passive (SMAP); Soil Moisture and Ocean Salinity (SMOS); SOIL-MOISTURE; OCEAN SALINITY; SENSOR; RETRIEVAL; ALGORITHM;
D O I
10.1109/LGRS.2014.2362889
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
In this letter, it is shown that spaceborne observations made by the European Space Agency's Soil Moisture and Ocean Salinity (SMOS) satellite agreed closely with the Passive Active L-band System (PALS) brightness temperature acquisitions during the Soil Moisture Active Passive (SMAP) Validation Experiment 2012. The difference between the SMOS and PALS measurements was less than 5 K and 6 K for vertical and horizontal polarizations, respectively, over the relatively homogeneous agricultural areas. These values are less than the SMOS subpixel variability determined from the PALS measurement. This result demonstrated that the measurements obtained in the experiment are scalable to spaceborne brightness temperature observations, are representative of the expected SMAP observations, and will be of value in the development of soil moisture algorithms for spaceborne missions.
引用
收藏
页码:801 / 805
页数:5
相关论文
共 18 条
[1]   Combined Passive and Active Microwave Observations of Soil Moisture During CLASIC [J].
Bindlish, Rajat ;
Jackson, Thomas ;
Sun, Ruijing ;
Cosh, Michael ;
Yueh, Simon ;
Dinardo, Steve .
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2009, 6 (04) :644-648
[2]   Long term analysis of PALS soil moisture campaign measurements for global soil moisture algorithm development [J].
Colliander, Andreas ;
Chan, Steven ;
Kim, Seung-bum ;
Das, Narendra ;
Yueh, Simon ;
Cosh, Michael ;
Bindlish, Rajat ;
Jackson, Thomas ;
Njoku, Eni .
REMOTE SENSING OF ENVIRONMENT, 2012, 121 :309-322
[3]   The Soil Moisture Active Passive (SMAP) Mission [J].
Entekhabi, Dara ;
Njoku, Eni G. ;
O'Neill, Peggy E. ;
Kellogg, Kent H. ;
Crow, Wade T. ;
Edelstein, Wendy N. ;
Entin, Jared K. ;
Goodman, Shawn D. ;
Jackson, Thomas J. ;
Johnson, Joel ;
Kimball, John ;
Piepmeier, Jeffrey R. ;
Koster, Randal D. ;
Martin, Neil ;
McDonald, Kyle C. ;
Moghaddam, Mahta ;
Moran, Susan ;
Reichle, Rolf ;
Shi, J. C. ;
Spencer, Michael W. ;
Thurman, Samuel W. ;
Tsang, Leung ;
Van Zyl, Jakob .
PROCEEDINGS OF THE IEEE, 2010, 98 (05) :704-716
[4]   The SMOS Soil Moisture Retrieval Algorithm [J].
Kerr, Yann H. ;
Waldteufel, Philippe ;
Richaume, Philippe ;
Wigneron, Jean Pierre ;
Ferrazzoli, Paolo ;
Mahmoodi, Ali ;
Al Bitar, Ahmad ;
Cabot, Francois ;
Gruhier, Claire ;
Juglea, Silvia Enache ;
Leroux, Delphine ;
Mialon, Arnaud ;
Delwart, Steven .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2012, 50 (05) :1384-1403
[5]   The SMOS Mission: New Tool for Monitoring Key Elements of the Global Water Cycle [J].
Kerr, Yann H. ;
Waldteufel, Philippe ;
Wigneron, Jean-Pierre ;
Delwart, Steven ;
Cabot, Francois ;
Boutin, Jacqueline ;
Escorihuela, Maria-Jose ;
Font, Jordi ;
Reul, Nicolas ;
Gruhier, Claire ;
Juglea, Silvia Enache ;
Drinkwater, Mark R. ;
Hahne, Achim ;
Martin-Neira, Manuel ;
Mecklenburg, Susanne .
PROCEEDINGS OF THE IEEE, 2010, 98 (05) :666-687
[6]   Aquarius: An instrument to monitor sea surface salinity from space [J].
Le Vine, David M. ;
Lagerloef, Gary S. E. ;
Colomb, Fernando Raul ;
Yueh, Simon H. ;
Pellerano, Fernando A. .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2007, 45 (07) :2040-2050
[7]   Aquarius and Remote Sensing of Sea Surface Salinity from Space [J].
Le Vine, David M. ;
Lagerloef, Gary S. E. ;
Torrusio, Sandra E. .
PROCEEDINGS OF THE IEEE, 2010, 98 (05) :688-703
[8]  
McNairn H., 2012, IEEE T GEOS IN PRESS
[9]   The complex dielectric constant of pure and sea water from microwave satellite observations [J].
Meissner, T ;
Wentz, FJ .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2004, 42 (09) :1836-1849
[10]   Retrieval of soil moisture from passive and active L/S band sensor (PALS) observations during the Soil Moisture Experiment in 2002 (SMEX02) [J].
Narayan, U ;
Lakshmi, V ;
Njoku, EG .
REMOTE SENSING OF ENVIRONMENT, 2004, 92 (04) :483-496