Techniques For The Automated Observation Of Clouds

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Techniques For The Automated Observation Of Clouds

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Author : James I. Metcalf
language : en
Publisher:
Release Date : 1985

Techniques For The Automated Observation Of Clouds written by James I. Metcalf and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Ceilometer categories.

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1994

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Aeronautics categories.

An Automated Low Cloud Prediction System

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Author : Edward B. Geisler
language : en
Publisher:
Release Date : 1981

An Automated Low Cloud Prediction System written by Edward B. Geisler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Automatic meteorological stations categories.

An Automated Cloud Observation System Acos

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Author : Edward B. Geisler
language : en
Publisher:
Release Date : 1980

An Automated Cloud Observation System Acos written by Edward B. Geisler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Automatic meteorological stations categories.

Analysis of cloud base height data collected during a seven-month period from a three Rotating Beam Ceilometer (RBC) network on Otis AFB, Massachusetts, demonstrated the accuracy of an automated cloud observation system. The high degree of correspondence between the automated and human observations of cloud height, low cloud amount, multiple cloud layers, and ceiling confirms the accuracy of the hierarchical clustering technique when applied to a network of RBC's confined to the immediate environs of an airfield. Tests demonstrated only slight improvements in automated cloud observation are realized by incorporating additional information from a second and third RBC on or near an airfield.

Program Solicitation

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Author :
language : en
Publisher:
Release Date : 1994

Program Solicitation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Military research categories.

An Assessment Of The An Gmq 13 Cloud Height Set Capability To Meet Aws Requirements

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Author : Frederick J. Brousaides
language : en
Publisher:
Release Date : 1982

An Assessment Of The An Gmq 13 Cloud Height Set Capability To Meet Aws Requirements written by Frederick J. Brousaides and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Ceilometer categories.

The capability and performance of the AN/GMQ-13 Cloud Height Set, commonly referred to as the Rotating Beam Ceilometer (RBC), was reviewed. Included in the study is an assessment of its ability to meet specific requirements for automting the measurement of cloud field properties, that is, layering and cloud cover, through the application of the hierarchical clustering technique. It is concluded that a single RBC system cannot meet current stated requirements for cloud height measurement. An RBC with a 1600 ft baseline can meet the high altitude requirement but has difficulty with low ceilings that are also associated with conditions of restricted visibility. An RBC with a 400-ft baseline does well at low altitudes but is totally inadequate at high altitudes. An obvious compromise would be the deployment of two RBCS, or one projector and two receivers. The hierarchical clustering technique for the determination of cloud field properties was previously demonstrated in AFGL and AWS field tests. The resolution and accuracy to be obtained is a function of the number of ceilometers available, their orientation, and time averaging considerations.

The Federal Plan For Meteorological Services And Supporting Research

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Author :
language : en
Publisher:
Release Date : 1972

The Federal Plan For Meteorological Services And Supporting Research written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Meteorology categories.

The Federal Plan For Meteorological Services And Supporting Research

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Author : United States. Office of Federal Coordinator for Meteorological Services and Supporting Research
language : en
Publisher:
Release Date : 1976

The Federal Plan For Meteorological Services And Supporting Research written by United States. Office of Federal Coordinator for Meteorological Services and Supporting Research and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Meteorology categories.

Techniques For The Automated Observation Of Clouds

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Author : James I. Metcalf
language : en
Publisher:
Release Date : 1985

Techniques For The Automated Observation Of Clouds written by James I. Metcalf and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Ceilometer categories.

This report surveys techniques for cloud detection to assess their suitability for meeting the requirements of the Automated Observation System (AOS). A microwave sensor is essential because of the requirements for observing cloud top heights and documenting multiple cloud layers. Wavelengths between 3 cm and 8.6 mm could be used for this application, and a detailed sensor design study is recommended to evaluate the availability, cost, performance, and reliability of components and systems. Pulsed or continuous-wave radars could meet most of the requirements, although measurements of cloud base with high accuracy at low altitude may be difficult with some pulsed systems. Keywords: Cloud base; Ceilometer; Cloud amount; Automated cloud observation; Remote detection; Ka band radar; X band radar; Lidar.

The Globe Program Teacher S Guide

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Author :
language : en
Publisher:
Release Date : 2002

The Globe Program Teacher S Guide written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Environmental education categories.