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Author: Lei Li
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Determination of atmospheric aerosol chemical composition has a great importance for Earth's climate and environment. However, in situ measurements that enable determination of aerosol composition are limited in time and space, while simulations by chemical transport models may not accurately describe the reality. The current thesis presents a novel methodology for monitoring of aerosol composition by remote sensing on large spatial and temporal scale. Namely, the volume-weighted and Maxwell Garnett models, which link the aerosol optical properties and chemical composition, were incorporated into the first versatile algorithm (GRASP) that derives the atmospheric properties from remote sensing. The concept proposes the direct retrieval of fractions of aerosol chemical components instead of post-processing estimate of the aerosol composition from the retrieved optical properties (refractive index, aerosol sizes). The tests showed sufficient sensitivity of the POLDER/PARASOL satellite observations to presence of key aerosol chemical elements. Then, the methodology was applied for the real PARASOL measurements. The aerosol optical characteristics derived from PARASOL using the chemical composition module demonstrated a good agreement with our reference measurements - AERONET ground-based network (e.g., R of ~ 0.9 for aerosol optical thickness). The methodology was then applied to the AERONET measurements as well. The obtained spatial and temporal patterns of aerosol composition agree well with known physical expectations. The retried aerosol composition was validated using available field campaign data and inter-compared with GOCART chemical transport model simulations.
Author: Lei Li
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Determination of atmospheric aerosol chemical composition has a great importance for Earth's climate and environment. However, in situ measurements that enable determination of aerosol composition are limited in time and space, while simulations by chemical transport models may not accurately describe the reality. The current thesis presents a novel methodology for monitoring of aerosol composition by remote sensing on large spatial and temporal scale. Namely, the volume-weighted and Maxwell Garnett models, which link the aerosol optical properties and chemical composition, were incorporated into the first versatile algorithm (GRASP) that derives the atmospheric properties from remote sensing. The concept proposes the direct retrieval of fractions of aerosol chemical components instead of post-processing estimate of the aerosol composition from the retrieved optical properties (refractive index, aerosol sizes). The tests showed sufficient sensitivity of the POLDER/PARASOL satellite observations to presence of key aerosol chemical elements. Then, the methodology was applied for the real PARASOL measurements. The aerosol optical characteristics derived from PARASOL using the chemical composition module demonstrated a good agreement with our reference measurements - AERONET ground-based network (e.g., R of ~ 0.9 for aerosol optical thickness). The methodology was then applied to the AERONET measurements as well. The obtained spatial and temporal patterns of aerosol composition agree well with known physical expectations. The retried aerosol composition was validated using available field campaign data and inter-compared with GOCART chemical transport model simulations.
Author: Alexander A. Kokhanovsky
Publisher: Springer Science & Business Media
ISBN: 3540693971
Category : Science
Languages : en
Pages : 398
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Book Description
Aerosols have a significant influence on the Earth's radiation budget, but there is considerable uncertainty about the magnitude of their effect on the Earth's climate. Currently, satellite remote sensing is being increasingly utilized to improve our understanding of the effect of atmospheric aerosols on the climate system. Satellite Aerosol Remote Sensing Over Land is the only book that brings together in one volume the most up-to-date research and advances in this discipline. As well as describing the current academic theory, the book presents practical applications, utilizing state-of-the-art instrumentation, invaluable to the work of environmental scientists. With contributions by an international group of experts and leaders of correspondent aerosol retrieval groups, the book is an essential tool for all those working in the field of climate change.
Author: Tanvir Islam
Publisher: Elsevier
ISBN: 0128104384
Category : Science
Languages : en
Pages : 366
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Book Description
Remote Sensing of Aerosols, Clouds, and Precipitation compiles recent advances in aerosol, cloud, and precipitation remote sensing from new satellite observations. The book examines a wide range of measurements from microwave (both active and passive), visible, and infrared portions of the spectrum. Contributors are experts conducting state-of-the-art research in atmospheric remote sensing using space, airborne, and ground-based datasets, focusing on supporting earth observation satellite missions for aerosol, cloud, and precipitation studies. A handy reference for scientists working in remote sensing, earth science, electromagnetics, climate physics, and space engineering. Valuable for operational forecasters, meteorologists, geospatial experts, modelers, and policymakers alike. Presents new approaches in the field, along with further research opportunities, based on the latest satellite data Focuses on how remote sensing systems can be designed/developed to solve outstanding problems in earth and atmospheric sciences Edited by a dynamic team of editors with a mixture of highly skilled and qualified authors offering world-leading expertise in the field
Author: Rodolfo Guzzi
Publisher: Springer
ISBN: 3540365362
Category : Science
Languages : en
Pages : 273
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Book Description
Only satellite-based remote-sensing instruments generate the wealth of global data on the concentrations of atmospheric constituents that are necessary for long-term monitoring of the atmosphere. This set of courses and lectures sponsored by ICTP in Trieste focuses on remote sensing for atmospheric applications and inverse methods to assess atmospheric components, gases, aerosols and clouds. It addresses primarily graduate students and young researchers in the atmospheric sciences but will be useful for all those wishing to study various techniques for exploring the atmosphere by remote sensing. Contributions span topics such as on IGOS (Integrated Global Observing Strategy), electromagnetic scattering by non-spherical particles, forward-modelling requirements and the information content problem, Earth radiation, and aerosol monitoring by LIDAR.
Author: Jean-marc Theriault
Publisher: World Scientific
ISBN: 9814469580
Category : Technology & Engineering
Languages : en
Pages : 545
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Book Description
This book provides unique perspectives on the state of the art in multispectral/hyperspectral techniques for early-warning monitoring against chemical, biological and radiological (CB&R) contamination of both surface (e.g. land) and air (e.g. atmospheric) environments through the presentation of a comprehensive survey of the novel spectroscopic methodologies and technologies that are emerging to address the CB&R defense and security challenges of the future. The technical content in this book lends itself to the non-traditional requirements for point and stand-off detection that have evolved out of the US joint services programs over many years. In particular, the scientific and technological work presented seeks to enable hyperspectral-based sensing and monitoring that is in real time and in-line; low in cost and labor requirements; and easy to support, maintain and use in military and security-relevant scenarios.
Author: John P. Burrows
Publisher: Springer Science & Business Media
ISBN: 3642147917
Category : Technology & Engineering
Languages : en
Pages : 576
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Book Description
The impact of anthropogenic activities on our atmospheric environment is of growing public concern and satellite-based techniques now provide an essential component of observational strategies on regional and global scales. The purpose of this book is to summarise the state of the art in the field in general, while describing both key techniques and findings in particular. It opens with an historical perspective of the field together with the basic principles of remote sensing from space. Three chapters follow on the techniques and on the solutions to the problems associated with the various spectral regions in which observations are made. The particular challenges posed by aerosols and clouds are covered in the next two chapters. Of special importance is the accuracy and reliability of remote sensing data and these issues are covered in a chapter on validation. The final section of the book is concerned with the exploitation of data, with chapters on observational aspects, which includes both individual and synergistic studies, and on the comparison of global and regional observations with chemical transport and climate models and the added value that the interaction brings to both. The book concludes with scientific needs and likely future developments in the field, and the necessary actions to be taken if we are to have the global observation system that the Earth needs in its present, deteriorating state. The appendices provide a comprehensive list of satellite instruments, global representations of some ancillary data such as fire counts and light pollution, a list of abbreviations and acronyms, and a set of colourful timelines indicating the satellite coverage of tropospheric composition in the foreseeable future. Altogether, this book will be a timely reference and overview for anyone working at the interface of environmental, atmospheric and space sciences.
Author: Xiaojun X. Yang
Publisher: John Wiley & Sons
ISBN: 111962584X
Category : Technology & Engineering
Languages : en
Pages : 532
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Book Description
Urban Remote Sensing The second edition of Urban Remote Sensing is a state-of-the-art review of the latest progress in the subject. The text examines how evolving innovations in remote sensing allow to deliver the critical information on cities in a timely and cost-effective way to support various urban management activities and the scientific research on urban morphology, socio-environmental dynamics, and sustainability. Chapters are written by leading scholars from a variety of disciplines including remote sensing, GIS, geography, urban planning, environmental science, and sustainability science, with case studies predominately drawn from North America and Europe. A review of the essential and emerging research areas in urban remote sensing including sensors, techniques, and applications, especially some critical issues that are shifting the Âdirections in urban remote sensing research. Illustrated in full color throughout, including numerous relevant case studies and extensive discussions of important concepts and cutting-edge technologies to enable clearer understanding for non-technical audiences. Urban Remote Sensing, Second Edition will be of particular interest to upper-division undergraduate and graduate students, researchers and professionals working in the fields of remote sensing, geospatial information, and urban & environmental planning.
Author: Allen Chu
Publisher: SPIE-International Society for Optical Engineering
ISBN:
Category : Nature
Languages : en
Pages : 160
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Book Description
Proceedings of SPIE present the original research papers presented at SPIE conferences and other high-quality conferences in the broad-ranging fields of optics and photonics. These books provide prompt access to the latest innovations in research and technology in their respective fields. Proceedings of SPIE are among the most cited references in patent literature.
Author: James Szykman
Publisher: SPIE-International Society for Optical Engineering
ISBN:
Category : Science
Languages : en
Pages : 184
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Book Description
Proceedings of SPIE present the original research papers presented at SPIE conferences and other high-quality conferences in the broad-ranging fields of optics and photonics. These books provide prompt access to the latest innovations in research and technology in their respective fields. Proceedings of SPIE are among the most cited references in patent literature.
Author: Simone Lolli
Publisher: MDPI
ISBN: 3039436015
Category : Science
Languages : en
Pages : 242
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Book Description
Remote Sensing is of paramount importance for Earth Observation to monitor and analyze the Earth’s vital signs. In this Special Issue are reported the latest research results involving active optical remote sensing instruments, both from ground-based to satellite platforms, that are involved in analyzing the vertical and horizontal aerosol and cloud distribution, other than their geometrical, optical and microphysical properties. Those active optical remote sensing techniques are also very useful in determining pollutant dispersion and the dynamics inside the boundary layer. The published studies put in evidence the hidden mechanisms on how pollution from the source is advected transnationally in other countries and the interaction with local meteorology.
