Second International Workshop On Retrieval Of Bio Geo Physical Parameters From Sar Data For Land Applications
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Sar Temporal Series Interpretation And Backscattering Modelling For Maize Growth Monitoring
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Author : Éric Auquière
language : en
Publisher: Presses univ. de Louvain
Release Date : 2001
Sar Temporal Series Interpretation And Backscattering Modelling For Maize Growth Monitoring written by Éric Auquière and has been published by Presses univ. de Louvain this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Science categories.
The research objective is to develop a methodology for the extraction of bio- and geophysical variables from Synthetic Aperture Radars (SAR) and for their use in the perspective of maize monitoring in an operational context. SARs interest agronomists because they present some advantages for vegetation monitoring. However, the actual revisit cycle of SARs is not sufficient for crop monitoring. The image processing chain we developed overcomes this issue and meets the 4 requirements for operational crop monitoring: a high temporal resolution, a high geometric accuracy, a short processing time and the preservation of the signal content. From the literature, we know that the interactions between the signal backscattered by the vegetation and by the underlying soil are very complex. To understand these interactions, we carried out very intensive ground campaigns. The resulting data set is very rich. It covers 3 growing seasons during which 30 ERS SAR images and 13 RADARSAT SAR images were acquired and processed. In total, 612 fields, i.e. 581 maize fields and 31 sugar beet fields were located and visited. These field campaigns represent 2500 field visits and more or less 7500 measurements of 8 variables. One of the major outputs of this research comes from the analysis of the temporal behaviour of the SAR signal distribution at both field and regional levels. The SAR signal is analysed by the mean of the per-field backscattering coefficient. Previous results concerning the respective contribution of soil and crop are confirmed. The research also addresses the use of several regional indicators. We point out a drop of per-field variation coefficient averaged at regional level and we link it to the decrease of the infra-parcel variability of the soil roughness and to the progressive masking effect of the crop canopy on different sources of variability. The spatial variability of the ERS per-field backscattering coefficients is related to the variability of the sowing dates. Finally, existing and new versions of the cloud model are calibrated and validated. The cloud model is adapted to account for the data available from the field campaigns. The results show that SAR do not allow the prediction of the maize biomass at the field level but they can be used to give an indication on the crop status at a regional level.
Spaceborne Synthetic Aperture Radar Remote Sensing
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Author : Shashi Kumar
language : en
Publisher: CRC Press
Release Date : 2023-03-31
Spaceborne Synthetic Aperture Radar Remote Sensing written by Shashi Kumar and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-03-31 with Computers categories.
This book provides basic and advanced concepts of synthetic aperture radar (SAR), PolSAR, InSAR, PolInSAR, and all necessary information about various applications and analysis of data of multiple sensors. It includes information on SAR remote sensing, data processing, and separate applications of SAR technology, compiled in one place. It will help readers to use active microwave imaging sensor-based information in geospatial technology and applications. This book: Covers basic and advanced concepts of synthetic aperture radar (SAR) remote sensing Introduces spaceborne SAR sensors Discusses applications of SAR remote sensing in earth observation Explores utilization of SAR data for solid earth, ecosystem, and cryosphere, including imaging of extra-terrestrial bodies Includes PolSAR and PolInSAR for aboveground forest biomass retrieval, as well as InSAR and PolSAR for snow parameters retrieval This book is aimed at researchers and graduate students in remote sensing, photogrammetry, geoscience, image processing, agriculture, environment, forestry, and image processing.
Tropical Forest Canopies Ecology And Management
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Author : K.E. Linsenmair
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-14
Tropical Forest Canopies Ecology And Management written by K.E. Linsenmair and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-14 with Technology & Engineering categories.
Almost half of all life on earth may exist in the world's forest canopies. They may also play a vital role in maintaining the planet's climate, yet they remain largely unexplored owing to difficulties of access. They are renowned for their great diversity and role in forest functioning, yet there are still great gaps in the understanding of this `last biological frontier'. This seminal book shows how canopy science is now in a position to answer many of the outstanding questions, among which are some of the most pressing environmental issues society is presently facing. It represents a major summary of the current understanding of canopy ecology, and maps a path forward into a greater understanding of tropical forest ecology and management at a time when the very future of this ecosystem is threatened by humanity's actions.
Tropical Forest Canopies Ecology And Management
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Author : Karl-Eduard Linsenmair
language : en
Publisher: Springer Science & Business Media
Release Date : 2001
Tropical Forest Canopies Ecology And Management written by Karl-Eduard Linsenmair and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Forest canopies categories.
Designing Green Landscapes
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Author : Klaus Gadow
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-02-01
Designing Green Landscapes written by Klaus Gadow and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-02-01 with Science categories.
While the natural resources of the earth continue to diminish, “Green Landscapes” arebeingcalleduponto produceanincreasingrangeofgoodsandservices.A Green Landscape is a rural expanse of scenery that may comprise a variety of visible f- tures. This book focuses on forested landscapes, although much of the theory and most of the practical applications are valid for any area of land. In many regions of the world, people depend on forests for their livelihood and well-being. Forests provide multiple services, – bene ts generated for society by the existence of c- tain forest ecosystems and their attributes. The value of these bene ts is often only recognised when they are lost after removal of the trees, resulting in ooding, loss of income and declining species diversity. Forests provide multiple services. However, the amount and quality, and the p- ticular mix of these services depend on the condition of the resource. Landscape design is a proven way to ensure that certain desired bene ts will be available in space and time. It provides the foundation and an essential starting point for s- tainable management. This volume, which forms part of Springer’s book series Managing Forest Ecosystems,presentsstate-of-the-artresearchresults,visionsandtheories,aswell as speci c methodsfor designing Green Landscapes, as a basis for sustainable ecos- tem management. The book contains a wealth of information which may be useful to companymanagement,the legal and policy environmentand forestry administ- tors. The volume is subdivided into four sections.
Igarss 99 Proceedings
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Author :
language : en
Publisher:
Release Date : 1999
Igarss 99 Proceedings written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Earth sciences categories.
Growing Stock Volume Estimation In Temperate Forested Areas Using A Fusion Approach With Sar Satellites Imagery
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Author : Nicolas Ackermann
language : en
Publisher: Springer
Release Date : 2014-12-05
Growing Stock Volume Estimation In Temperate Forested Areas Using A Fusion Approach With Sar Satellites Imagery written by Nicolas Ackermann and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-12-05 with Technology & Engineering categories.
"The PhD thesis written by Mr. Ackermann is an outstanding and in-depth scientific study that closes a research gap and paves the way to new developments. Despite the extremely complex issues, his work is very understandable and excellently elaborated." Prof. Dr. Christiane Schmullius "The PhD thesis written by Mr. Ackermann is an excellent and very comprehensive work performed at the highest scientific level. It examines in detail the potential of SAR data with regards to the derivation of forest stem volume in the temperate latitudes. The work belongs to a technically complex field. Nevertheless, Mr. Ackermann has succeeded in presenting the content in a clear and understandable way." Dr. Christian Thiel "The proposed document is overall of very good quality. Mr. Ackermann has done an exhaustive analysis of the in-situ data available on the Thuringian forest and was able to derive Growing Stocking Volume using L- and X-band spaceborne SAR data. The document is very well structured with a good split of information between the core of the text presented in the 6 chapters and the 4 annexes, which contain detailed results. Mr. Ackermann’s English grammar is excellent and his syntax is crystal clear, making his document pleasant to read. The way arguments are presented is logical and Mr. Ackermann gives a lot of attention to ensuring that sound explanations properly support these arguments." Dr. Maurice Borgeaud
Ieee International Geoscience And Remote Sensing Symposium Proceedings
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Author :
language : en
Publisher:
Release Date : 2003
Ieee International Geoscience And Remote Sensing Symposium Proceedings written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Earth sciences categories.
Analysis Of Synthetic Aperture Radar Images For Forestry Applications
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Author : Johan Fransson
language : en
Publisher:
Release Date : 1999
Analysis Of Synthetic Aperture Radar Images For Forestry Applications written by Johan Fransson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Forest surveys categories.
Computational Methods In Transport Verification And Validation
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Author : Frank Graziani
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-08-09
Computational Methods In Transport Verification And Validation written by Frank Graziani and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-08-09 with Science categories.
The focus of this book deals with a cross cutting issue affecting all transport disciplines, whether it be photon, neutron, charged particle or neutrino transport. That is, verification and validation. In this book, we learn what the astrophysicist, atmospheric scientist, mathematician or nuclear engineer do to assess the accuracy of their code. What convergence studies, what error analysis, what problems do each field use to ascertain the accuracy of their transport simulations.