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Analysis Of Visible And Infrared Cirrus Cloud Optical Properties Using High Spectral Resolution Remote Sensing
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Book Synopsis Analysis of Visible and Infrared Cirrus Cloud Optical Properties Using High Spectral Resolution Remote Sensing by : Daniel H. DeSlover
Download or read book Analysis of Visible and Infrared Cirrus Cloud Optical Properties Using High Spectral Resolution Remote Sensing written by Daniel H. DeSlover and published by . This book was released on 1996 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781725112667 Total Pages :28 pages Book Rating :4.1/5 (126 download)
Book Synopsis Analysis of Cirrus Optical Properties with Data from NASA Er2 High-Resolution Interferometer Sounder (His) by : National Aeronautics and Space Administration (NASA)
Download or read book Analysis of Cirrus Optical Properties with Data from NASA Er2 High-Resolution Interferometer Sounder (His) written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-16 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 8 to 13 micron spectral region is an important atmospheric window for radiometric studies of the Earth's surface and clouds. Most of the Earth-atmosphere longwave radiative loss to space occurs in this spectral region. Selective gaseous absorption in this window occurs in the 9.6 micron ozone band with the remaining absorption dominated by the water vapor continuum. Cirrus clouds have a large impact on the transmittance of this atmospheric window region; it is therefore important to understand the interaction of cirrus cloud with the radiation field for climate studies and in the interpretation of satellite radiometric measurements. The focus was to employ observations of the High-resolution Interferometer Sounder (HIS) made during First ISCCP Regional Experiment (FIRE) to improve the understanding of the radiative properties of cirrus clouds within this window region. Studies were undertaken to investigate the coupling between the microphysical properties of cirrus clouds and their spectral variation within this window region. Extensions of the HIS studies to satellite measurements, with regards to remote sensing and interpretation, were also investigated. Smith, William L. and Ackerman, Steven A. Unspecified Center NASA-CR-186365, NAS 1.26:186365 NAG1-1015...
Book Synopsis Satellite-based Remote Sensing of Cirrus Clouds by : Zhibo Zhang
Download or read book Satellite-based Remote Sensing of Cirrus Clouds written by Zhibo Zhang and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation consists of three parts, each devoted to a particular issue of significant importance for satellite-based remote sensing of cirrus clouds. In the first part, we develop and present a fast infrared radiative transfer model on the basis of the adding-doubling principle. The model aims to facilitate the radiative transfer computations involved in hyperspectral remote sensing applications. The model is applicable to a variety of cloud conditions, including vertically inhomogeneous or multilayered clouds. It is shown that for hyperspectral applications the model is two order-of-magnitude faster than the well-known discrete ordinate transfer (DISORT) model, while maintains a similar accuracy. The second part is devoted to the investigation of uncertainties in the FSSP (Forward Scattering Spectrometer Probe) measurement of cloud extinction by small ice particles. First, the single-scattering properties of small ice particles in cirrus clouds are derived and compared to those of equivalent spheres according to various definitions. It is found that, although small ice particles in cirrus clouds are often "quasi-spherical", their scattering phase functions and asymmetry factors are significant different from those of ice spheres. Such differences may lead to substantial underestimation of cloud extinction in FSSP measurement, if small ice particles are assumed to be spheres. In the third part, we present a comparison of cirrus cloud optical thickness retrievals from two important instruments, MODIS (Moderate Resolution Imaging Spectrometer) and POLDER (Polarization and Directionality of Earth's Reflection), on board NASA's A-train satellite constellation. The comparison reveals a large difference. Several possible reasons are discussed. It is found that much of the difference is attributable to the difference between the MODIS and POLDER retrieval algorithm in the assumption of cirrus cloud bulk scattering properties. Potential implications of the difference for climate studies are investigated. An important finding is that the use of an unrealistic cirrus bulk scattering model might introduce artificial seasonal variation of cirrus optical thickness and shortwave radiative forcing into the retrieval.
Book Synopsis Measurement of Cirrus Cloud Optical Properties by High Spectral Resolution Lidar by : Christian John Grund
Download or read book Measurement of Cirrus Cloud Optical Properties by High Spectral Resolution Lidar written by Christian John Grund and published by . This book was released on 1987 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Passive Infrared Remote Sensing of Clouds and the Atmosphere by :
Download or read book Passive Infrared Remote Sensing of Clouds and the Atmosphere written by and published by . This book was released on 1995 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Remote Sensing of Aerosols, Clouds, and Precipitation by : Tanvir Islam
Download or read book Remote Sensing of Aerosols, Clouds, and Precipitation written by Tanvir Islam and published by Elsevier. This book was released on 2017-10-18 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis Optical Remote Sensing of the Atmosphere and Clouds by : Jinxue Wang
Download or read book Optical Remote Sensing of the Atmosphere and Clouds written by Jinxue Wang and published by SPIE-International Society for Optical Engineering. This book was released on 1998 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics in these papers include: adeos - instruments, data processing, and science; optical remote sensing of atmospheric aerosol properties; radiative transfer modelling and retrieval techniques; and optical and microwave remote sensing of the atmosphere - lower atmosphere.
Book Synopsis Light Scattering by Ice Crystals by : Kuo-Nan Liou
Download or read book Light Scattering by Ice Crystals written by Kuo-Nan Liou and published by Cambridge University Press. This book was released on 2016-10-06 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume outlines the fundamentals and applications of light scattering, absorption and polarization processes involving ice crystals.
Book Synopsis The Measurement of Cirrus Cloud Structure and Optical Properties with a High Spectral Resolution Lidar and a Volume Imaging Lidar by : Edwin Walter Eloranta
Download or read book The Measurement of Cirrus Cloud Structure and Optical Properties with a High Spectral Resolution Lidar and a Volume Imaging Lidar written by Edwin Walter Eloranta and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Cirrus Cloud Structure and Optical Properties with a High Spectral Resolution Lidar and a Volume Imaging Lidar by :
Download or read book Measurement of Cirrus Cloud Structure and Optical Properties with a High Spectral Resolution Lidar and a Volume Imaging Lidar written by and published by . This book was released on 1900 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Passive Infrared Remote Sensing of Clouds and the Atmosphere II by : David K. Lynch
Download or read book Passive Infrared Remote Sensing of Clouds and the Atmosphere II written by David K. Lynch and published by . This book was released on 1994 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cirrus written by David K. Lynch and published by Oxford University Press, USA. This book was released on 2002 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text, devoted entirely to cirrus clouds, captures the state of knowledge of cirrus clouds and serves as a practical handbook as well.
Book Synopsis Optical Remote Sensing of the Atmosphere and Clouds by :
Download or read book Optical Remote Sensing of the Atmosphere and Clouds written by and published by . This book was released on 1998 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Spectral Resolution Infrared Remote Sensing for Earth's Weather and Climate Studies by : Alain Chedin
Download or read book High Spectral Resolution Infrared Remote Sensing for Earth's Weather and Climate Studies written by Alain Chedin and published by . This book was released on 1993 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of Cloud Properties from Single-scattering, Radiative Forcing, and Retrieval Perspectives by : Yong-Keun Lee
Download or read book Study of Cloud Properties from Single-scattering, Radiative Forcing, and Retrieval Perspectives written by Yong-Keun Lee and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation reports on three different yet related topics in light scattering computation, radiative transfer simulation, and remote sensing implementation, regarding the cloud properties and the retrieval of cloud properties from satellite-based infrared radiometric measurements. First, the errors associated with the use of circular cylinders as surrogates for hexagonal columns in computing the optical properties of pristine ice crystals at infrared (8-12 [micron]) wavelengths are investigated. It is found that the differences between the results for circular cylinders and hexagonal columns are on the order of a few percent at infrared wavelengths. Second, investigated in this dissertation are the outgoing broadband longwave and window channel radiances at the top-of-atmosphere under clear-sky conditions on the basis of the data acquired by the Cloud and the Earth's Radiant Energy System (CERES) instrument onboard the NASA Terra satellite platform. Based on the comparison of the observed broadband radiances with those obtained from rigorous radiative transfer simulations, it is found that the theoretical results tend to be larger than their measured counterparts. Extensive sensitivity studies regarding the uncertainties of various parameters were carried out. Within the considered uncertainties of various factors, the computed radiances are still larger than the observed radiances if thin cirrus clouds are excluded. Thus, a potential cause for the differences could be associated with the presence of thin cirrus clouds whose visible optical thickness is smaller than approximately 0.3. Third, presented in this dissertation is an illustration of the application of hyperspectral infrared channel observations to the retrieval of the cloud properties. Specifically, the hyperspectral measurements acquired from the Atmospheric Infrared Sounder (AIRS) aboard the NASA Aqua platform are used to infer cloud top pressure, effective cloud amount, cloud thermodynamic phase, cloud optical thickness, and the effective size of cloud particles. The AIRS-based retrievals are compared with the counterparts of the operational cloud products derived from the Moderate Resolution Imaging Spectroradiometer (MODIS). The two retrievals agree reasonably well except for the retrieved cloud effective particle size. Furthermore, the diurnal and seasonal contrasts of cloud properties are also investigated on the basis of the cloud properties retrieved from the AIRS data.
Book Synopsis Observations of Tropical Cirrus by Elastic Backscatter Lidars and the Development of a Cloud and Aerosol Retrieval Algorithm for Raman Lidars by : Tyler J. Thorsen
Download or read book Observations of Tropical Cirrus by Elastic Backscatter Lidars and the Development of a Cloud and Aerosol Retrieval Algorithm for Raman Lidars written by Tyler J. Thorsen and published by . This book was released on 2014 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tropical cirrus cloud properties from elastic backscatter lidars--- namely the Atmospheric Radiation Measurement (ARM) program's ground-based micropulse lidars (MPL) and the spaceborne Cloud-Aerosol Lidar Infrared Pathfinder Satellite Observations (CALIPSO) lidar--- are examined. The MPL detects significantly less cirrus clouds relative to CALIPSO, particularly during the daytime. However, the MPL samples enough cirrus at night to provide similar statistics of macrophysical and optical properties as CALIPSO. Both sets of lidar observations are supplemented with cloud radar observations to calculate radiative heating rate profiles from a ground-based and spaceborne perspective. The inferred radiative effect of clouds is much smaller when using the ground-based data, mostly due to the lack of cirrus detected by the MPL. The relatively new and more advance ARM Raman lidar (RL) is shown to be more sensitive to cirrus than the ARM MPL and detects a similar amount of cirrus as CALIPSO. Daytime measurements using the RL elastic channel are relatively unaffected by the solar background and are therefore suited for checking the observed diurnal cycles from the MPL and CALIPSO. Comparisons with RL observations show that the geometrical thickness of cirrus from the MPL and CALIPSO datasets are biased thin during the daytime due to increased noise. Various upgrades since its conception have made the ARM RL a viable tool for cloud studies as demonstrated by this thesis. Since the ARM RL was not originally designed for cloud observations, the current automated processing algorithms do not identify all clouds nor attempt to retrieve cloud extinction profiles. Therefore an improved Feature detection and EXtinction retrieval (FEX) algorithm is developed. The approach of FEX is to use multiple quantities to identify features (clouds and aerosols) using range-dependent context-sensitive detection thresholds. The use of multiple quantities provides complementary depictions of cloud and aerosol locations. The extinction profiles are directly retrieved using the Raman method, which are supplemented by other retrieval methods developed for elastic backscatter lidars. A classification of feature type is made guided by the atmosphere's thermodynamic state and the feature's scattering properties. The contribution of multiple scattering, which is significant for hydrometeors, is explicitly considered for each of the ARM RL channels. The FEX framework is also suitable for other advance lidars, i.e. high spectral resolution lidars (HSRL). The continuously operated, automated ARM RLs paired with FEX provide an enormous wealth of water vapor, temperature, aerosol and cloud data unmatched by other remote sensing systems.
Book Synopsis Remote Sensing of Clouds and the Atmosphere by :
Download or read book Remote Sensing of Clouds and the Atmosphere written by and published by . This book was released on 2004 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
