An Outline for the RTNEPH Infrared Atmospheric Water Vapor Attenuation Study


Book Description

The Real-Time Nephanalysis (RTNE PH) generates real-time global analysis of cloud extent, base, height, and type. The RTNE PH makes extensive use of satellite data that are measured in the 10-12 micron infrared (IR) window for thermal mapping of clouds and the earth's surface both day and night. Water vapor absorption effects are significant in such data, especially for high viewing angles and tropical atmospheres where water vapor concentrations are generally high. Water vapor attenuates the emitted ground radiance, reducing its magnitude and with it the apparent temperature of the surface being viewed. Currently, the RTNEPH takes into account such attenuation losses using lookup tables that are functions of viewing geometry, time of day, type of background, and the like. However, these corrections have limited value and leave room for significant improvement. This report outlines and presents two new techniques that are expected to enhance the attenuation correction capabilities of the RTNEPH, multivariate polynomial regression (the Weinreb technique) and the correlated K method.







The Infrared Absorption Spectrum of Water Vapor and Carbon Dioxide


Book Description

A brief review is given of the basic principles which govern the absorption of infrared radiation by molecules, with emphasis on the factors which govern the qualitative features of the observed spectra. This is used as a basis for the examination of the infrared spectra of water vapor and of carbon dioxide. The characteristics of the individual bands are discussed in terms of the underlying theory and are illustrated by experimental absorption curves derived from the published literature. (Author).




Atmospheric Radiative Transfer


Book Description

This book presents the basis of atmospheric radiative transfer for graduate students, as well as for scientists or engineers who want to start work in this domain. It supposes that the reader has reached a general college level in mathematics & physics. The first part covers the theory of radiative energy transfer & is of interest for a larger audience than only the atmospheric scientists. After carefully defining the various quantities characterizing radiation energy & its interaction with matter, the equation of radiative transfer is established & the laws of blackbody emission reviewed. One chapter presents the detection of radiative energy. The next chapters review the problems of quantitative spectroscopy & the transfer of energy in an absorbing & emitting medium. Finally, the laws of scattering are presented & the transfer of radiation in a scattering medium, including polarization, is analyzed.




Observation of the Earth and Its Environment


Book Description

This book is about spaceborne missions and instruments. In addition, surveys of airborne missions and of campaigns can be found on the accompanying CD-ROM in pdf-format. Compared with the 3rd edition the spaceborne part grew from about 300 to 1000 pages. The complete text - including the electronic-only chapters - contains more than 1900 pages. New chapters treat the history of Earth observation and university missions. The number of commercial Earth imaging missions has grown significantly. A chapter contains reference data and definitions. Extensive appendices provide a comprehensive glossary, acronyms and abbreviations and an index of sensors. An effort has been made to present the information in context, to point out relationships and interconnections. The book may serve as a reference and guide to all involved in the various national and international space programs: researchers and managers, service providers and data users, teachers and students.







Mesoscale Meteorological Modeling


Book Description

This second edition provides an update of the field of mesoscale atmospheric modeling. The topic of mesoscale modeling is developed from basic concepts in atmospheric physics. New numerical and analytical tools are introduced. Problem sets are provided to test the comprehension of the material introduced in the text.




Earth Resources


Book Description