Automated Satellite Cloud Analysis - Tactical Nephanalysis (TACNEPH).

1994 ◽  
Author(s):  
Gary B. Gustafson ◽  
Ronald G. Isaacs ◽  
Jeanne M. Sparrow ◽  
Daniel C. Peduzzi ◽  
James S. Belfiore
Keyword(s):  
Cloud Analysis

Enhanced Satellite Cloud Analysis by the Development of a Higher Resolution (6-km) Global Geography Data Set

1995 ◽  
Author(s):  
Radburn Robb ◽  
Crystal B. Schaaf ◽  
Daniel C. Peduzzi ◽  
Joan M. Ward
Keyword(s):  
Data Set ◽  
Cloud Analysis

Enhancement of Near-Real-Time Cloud Analysis and Related Analytic Support for Whole Sky Imagers

2007 ◽  
Author(s):  
Janet E. Shields ◽  
Monette E. Karr ◽  
Art R. Burden ◽  
Richard W. Johnson ◽  
William S. Hodgkiss
Keyword(s):  
Real Time ◽  
Cloud Analysis

LFNet: Local Rotation Invariant Coordinates Frame for Robust Point Cloud Analysis

2021 ◽  
pp. 1-1
Author(s):  
Hezhi Cao ◽  
Ronghui Zhan ◽  
Yanxin Ma ◽  
Chao Ma ◽  
Jun Zhang
Keyword(s):  
Point Cloud ◽  
Rotation Invariant ◽  
Local Rotation ◽  
Point Cloud Analysis ◽  
Cloud Analysis

scholarly journals Record-to-record variability and code-compatible seismic safety-checking with limited number of records

2021 ◽  
Author(s):  
Fatemeh Jalayer ◽  
Hossein Ebrahimian ◽  
Andrea Miano
Keyword(s):  
Seismic Hazard ◽  
Linear Time ◽  
Time History ◽  
Time History Analysis ◽  
Seismic Safety ◽  
Hazard Curve ◽  
History Analysis ◽  
Non Linear ◽  
Seismic Hazard Curve ◽  
Cloud Analysis

AbstractThe Italian code requires spectrum compatibility with mean spectrum for a suite of accelerograms selected for time-history analysis. Although these requirements define minimum acceptability criteria, it is likely that code-based non-linear dynamic analysis is going to be done based on limited number of records. Performance-based safety-checking provides formal basis for addressing the record-to-record variability and the epistemic uncertainties due to limited number of records and in the estimation of the seismic hazard curve. “Cloud Analysis” is a non-linear time-history analysis procedure that employs the structural response to un-scaled ground motion records and can be directly implemented in performance-based safety-checking. This paper interprets the code-based provisions in a performance-based key and applies further restrictions to spectrum-compatible record selection aiming to implement Cloud Analysis. It is shown that, by multiplying a closed-form coefficient, code-based safety ratio could be transformed into simplified performance-based safety ratio. It is shown that, as a proof of concept, if the partial safety factors in the code are set to unity, this coefficient is going to be on average slightly larger than unity. The paper provides the basis for propagating the epistemic uncertainties due to limited sample size and in the seismic hazard curve to the performance-based safety ratio both in a rigorous and simplified manner. If epistemic uncertainties are considered, the average code-based safety checking could end up being unconservative with respect to performance-based procedures when the number of records is small. However, it is shown that performance-based safety checking is possible with no extra structural analyses.

Correlating fracture trends and hydraulic head using semivariogram cloud analysis

Ground Water ◽  
2005 ◽  
Vol 43 (2) ◽  
pp. 250-258 ◽  
Author(s):  
Daniel Kurtzman ◽  
Ronit Nativ ◽  
Eilon M. Adar
Keyword(s):  
Hydraulic Head ◽  
Cloud Analysis
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