Whole Sky Imagers for Real-time Cloud Assessment, Cloud-free Line of Sight Determinations and Potential Tactical Applications PDF Download
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Author: Janet E. Shields
Publisher:
ISBN:
Category : Imaging systems in meteorology
Languages : en
Pages : 16
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Book Description
Author: Janet E. Shields
Publisher:
ISBN:
Category : Imaging systems in meteorology
Languages : en
Pages : 16
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Book Description
Author: Janet E. Shields
Publisher:
ISBN:
Category : Clouds
Languages : en
Pages : 62
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Book Description
This report describes the work done for the Starfire Optical Range, Kirtland Air Force base, under ONR Contract N00014-01-D-0043 DO #13, between 20 April 2006 and 31 July 2007. This work relates to the Air Force's need to characterize the cloud distribution during day and night, for a variety of applications
Author: Janet E. Shields
Publisher:
ISBN:
Category : Clouds
Languages : en
Pages : 68
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Book Description
This report describes the work done for the Starfire Optical Range, Kirtland Air Force Base under Contract N00014-01-D-043 DO #11, between 02 September 2004 and 30 April 2006. This work relates to the Air Force's need to characterize the cloud distribution during day and night, for a variety of applications, including support of research into impact of clouds on laser communication and support of satellite tracking. This contract followed Contract N00014-01-D-0043 DO #4, which will be discussed in Section 2, and is documented in Shields et al 2007, Technical Note 271. Under this contract, we began preparing Whole Sky Imager systems for field experiments in support of program goals, adapting the software and refurbishing the hardware. Significant progress was made both in the related cloud algorithms and in methods to assess their accuracy. A related contract was funded through Boeing during 31 January 2005 - 30 November 2005. The tasks completed under that contract are closely related to these tasks, and will also be reported here. In particular, early portions of the night algorithm work reported in Section 7, and early portions of the hardware and software refurbishment were completed partly under the ONR contract and partly under the Boeing contract. The work under this Boeing contract was finished in May 2005. A follow-on contract, ONR N00014-0l-D-0043 DO #13 was funded on 20 April 2006. The work under DO #13 will be reported under a separate report upon completion of the contract.
Author: Janet E. Shields
Publisher:
ISBN:
Category : Imaging systems in meteorology
Languages : en
Pages : 58
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Book Description
Author: Janet E. Shields
Publisher:
ISBN:
Category : Imaging systems in meteorology
Languages : en
Pages : 84
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Book Description
Author: Janet E. Shields
Publisher:
ISBN:
Category : Clouds
Languages : en
Pages : 50
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Book Description
This report describes the work done for the Starfire Optical Range, Kirtland Air Force Base under Contract N00014-01-D-043 DO #4, between 25 May 01 and 31 September 06. This work relates to the Air Force s need to characterize the cloud distribution during day and night, for a variety of applications, including support of satellite tracking, and support of research into impact of clouds on laser communication. This contract followed Contract N00014-97-D-0350 DO #6, which will be discussed in Section 2, and is documented in Shields et al 2004b, Technical Note 265. The primary goals of Delivery Order #4 discussed in this current report included further development of day and night cloud algorithms and support of the fielded Whole Sky Imager instruments. Much of the work done under DO #4 was completed by the end of 2004. Some additional work was done in 2005 and 2006 under the DO #4 funding, but most of the SOR work during this interval was done under a follow-on contract, ONR N00014-01-D- 0043 DO #11, funded September 04. The work under DO #11 will be reported under a separate report
Author: Atmospheric Optics Group
Publisher:
ISBN:
Category : Light absorption
Languages : en
Pages : 154
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Book Description
The primary goals of this project for JTO and ONR (Grant N00014-07-1-1060) were to further develop Extinction Imagers for use in the ocean environment, and to extend the capabilities into the Short Wave IR (SWIR). Extinction Imaging is a method for determining the effective extinction coefficient over an extended path using a sensor at one end of the path. It uses calibrated imagers to acquire the relative radiance of a dark target near the other the end of the path and the horizon sky in the direction of the dark target. It is completely passive and thus covert, and the hardware is robust and relatively inexpensive. It uses rigorous equations, which determine the extinction coefficient from the measured apparent contrast of the radiance of the dark target with respect to the horizon sky. The project was very successful. We found that the ocean surface could readily be used as a dark target in red and SWIR wavelengths. Both the red and the SWIR measurement results were excellent for daytime. Comparisons with standard instruments, as well as uncertainty analysis, indicated that extinction imagers provide better measurements of the atmospheric extinction losses over extended paths than other methods of which we are aware. Our secondary goals were to address the night regime, and to address slanted paths above the horizontal. Regarding night, we found that the visible sensor acquired excellent data, but the ocean surface was not a good dark target in our wavelengths. Recommendations on the handling of night are given in the report. Regarding the lines of sight above the horizon, we developed a slant path algorithm that determines beam transmittance. It performed very well. Recommendations are made regarding integration of these techniques for military applications
Author: Janet E. Shields
Publisher:
ISBN:
Category : Imaging systems in meteorology
Languages : en
Pages : 24
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Book Description
Author: Barry Briggs
Publisher: Microsoft Press
ISBN: 1509301992
Category : Computers
Languages : en
Pages : 228
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Book Description
How do you start? How should you build a plan for cloud migration for your entire portfolio? How will your organization be affected by these changes? This book, based on real-world cloud experiences by enterprise IT teams, seeks to provide the answers to these questions. Here, you’ll see what makes the cloud so compelling to enterprises; with which applications you should start your cloud journey; how your organization will change, and how skill sets will evolve; how to measure progress; how to think about security, compliance, and business buy-in; and how to exploit the ever-growing feature set that the cloud offers to gain strategic and competitive advantage.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1390
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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
