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Assimilation of satellite soil moisture in hydrological modeling: assessment of observations preprocessing and error characterization methods

Domenico De Santis, Franco Furgiuele, Daniela Biondi
Pierdicca et al. (2017) presented an Extended Quadruple Collocation (E-QC) method, actually applicable to a generic number of datasets, that considers the possibility of an error cross-correlation between  ...  ) independency between the errors of , and (zero error cross-correlation).  ... 
doi:10.13126/ fatcat:btumi2gdfjgodkwv6kl7fd5wau

A Triple Collocation-Based Comparison of Three L-Band Soil Moisture Datasets, SMAP, SMOS-IC, and SMOS, Over Varied Climates and Land Covers

Seokhyeon Kim, Jianzhi Dong, Ashish Sharma
2021 Frontiers in Water  
However, little effort has been made to investigate the inter-product differences of L-band soil moisture retrievals and provide insights into the optimal use of these products.  ...  In this regard, this study aims to identify the relative strengths and weaknesses of three L-band soil moisture products across diverse climate zones and land covers at the global scale using triple collocation  ...  Satellite remote sensing of soil moisture is generally characterized by sensor types (i.e., active and passive) and microwave bands such as X-, C-, and L-bands used for the retrievals.  ... 
doi:10.3389/frwa.2021.693172 fatcat:efjzzbwunrhdxigtz3uz55f5fq

Validation of Earth Observation Time-Series: A Review for Large-Area and Temporally Dense Land Surface Products

Stefan Mayr, Claudia Kuenzer, Ursula Gessner, Igor Klein, Martin Rutzinger
2019 Remote Sensing  
Since various error sources in the acquisition chain of datasets exist, only properly validated results can be of value for research and downstream decision processes.  ...  This review presents an overview of validation approaches concerning temporally dense time-series of land surface geo-information products that cover the continental to global scale.  ...  [93] utilized TC to initially intercompare three radar soil moisture products to further extend this method to a quadruple collocation, in order to estimate error cross-correlations, facilitated by  ... 
doi:10.3390/rs11222616 fatcat:jmdrtu24r5cnbok2cvl66t56eq

Triple Collocation Analysis for Two Error-Correlated Datasets: Application to L-Band Brightness Temperatures over Land

Verónica González-Gambau, Antonio Turiel, Cristina González-Haro, Justino Martínez, Estrella Olmedo, Roger Oliva, Manuel Martín-Neira
2020 Remote Sensing  
This paper presents a new formulation of the triple collocation (Correlated Triple Collocation (CTC)) for the case of three datasets that resolve similar spatial scales, with two of them being error-correlated  ...  As an example of application, the error characterization of three collocated L-band brightness temperature (TB) measurements over land has been performed.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/rs12203381 fatcat:yr7s6sxfvvdjdaty53eo4xizpy

Meteorology and Oceanography

1952 Physics today  
Bob Aune, Tim Schmit and Tony Schreiner of Advanced Sounding Product Team of NESDIS in Wisconsin for many discussions, and to Ms. N. Fullerton for her editorial support.  ...  Greene for their helpful discussion on the issue of error analysis. We would also like to acknowledge our colleague F. Weng for his interest and involvement in this project.  ...  On the TRMM satellite, the TMI scans through a conical arc at a constant 49' angle from nadir, while the PR and VlRS scan cross track through nadir view.  ... 
doi:10.1063/1.3067492 fatcat:gpzkh2et5ndj5lcss2jsmgxbiy

State of the Climate in 2010

J. Blunden, D. S. Arndt, M. O. Baringer
2011 Bulletin of The American Meteorological Society - (BAMS)  
The year began and ended with very large soil moisture deficits and drought conditions in several North Island regions, and in parts of the east of the South Island.  ...  production.  ...  Scipal et al. (2008) and Dorigo et al. (2010) , using a statistical method called triple collocation, quantified satellite-based soil moisture errors in the order of 0.01 m 3 m -3 -0.04 m 3 m -3 for  ... 
doi:10.1175/1520-0477-92.6.s1 fatcat:agnb5qh3uncxnks2eefb7somse

Abstracts for the Fifteenth UK Geophysical Assembly

2007 Geophysical Journal International  
This newfound proximity has led to a strengthening of the links between Leicester and Keyworth, and one most rewarding outcome of this is the joint organization of UKGA-15.  ...  Finally, Dr Clive McCann of the Postgraduate Research Institute for Sedimentology at the University of Reading will address the Assembly on "The seismic properties of sedimentary rocks".  ...  This has minimised errors due to poor cross-over adjustments of the satellite data.  ... 
doi:10.1111/j.1365-246x.1991.tb05712.x fatcat:qgucmxdhgzgkvcw2rn3utmymo4

Characterization and longitudinal study of aerosol particles using a synergy of lidar techniques and passive remote sensing methods in the Mediterranean basin [article]

Ourania Soupiona, National Technological University Of Athens
The aim of this Doctoral Thesis is the study of the tropospheric aerosols by means ground based remote sensing and space-borne techniques, through statistical analysis of the retrieved aerosol optical  ...  At the same time, advanced mathematical algorithms are applied to retrieve the aerosol microphysical properties while predictive models are used to obtain additional information, such as the source regions  ...  characterization, validation of satellite retrievals, and synergism with other databases.  ... 
doi:10.26240/heal.ntua.20247 fatcat:bvbibbabxzbz5af5u6s5ywbymi