scholarly journals Statistical Characteristics of the Response of Sea Surface Temperatures to Westward Typhoons in the South China Sea

2021 ◽  
Vol 13 (5) ◽  
pp. 916
Author(s):  
Zhaoyue Ma ◽  
Yuanzhi Zhang ◽  
Renhao Wu ◽  
Rong Na
Keyword(s):  
Earth Observation ◽  
Sea Surface ◽  
Statistical Characteristics ◽  
Observation System ◽  
Sst Cooling ◽  
Mean Sea Surface ◽  
Earth Observation System ◽  
The Right ◽  
Cooling Center ◽  
Over Time

The strong interaction between a typhoon and ocean air is one of the most important forms of typhoon and sea air interaction. In this paper, the daily mean sea surface temperature (SST) data of Advanced Microwave Scanning Radiometer for Earth Observation System (EOS) (AMSR-E) are used to analyze the reduction in SST caused by 30 westward typhoons from 1998 to 2018. The findings reveal that 20 typhoons exerted obvious SST cooling areas. Moreover, 97.5% of the cooling locations appeared near and on the right side of the path, while only one appeared on the left side of the path. The decrease in SST generally lasted 6–7 days. Over time, the cooling center continued to diffuse, and the SST gradually rose. The slope of the recovery curve was concentrated between 0.1 and 0.5.

Target Evaluation and Correlation Method (TECM) as an Assessment Approach to Global Earth Observation System of Systems (GEOSS)

2011 ◽  
Vol 2 (1) ◽  
pp. 36-62 ◽  
Author(s):  
Samuel Epelbaum ◽  
Mo Mansouri ◽  
Alex Gorod ◽  
Brian Sauser ◽  
Alexander Fridman
Keyword(s):  
Large Scale ◽  
Correlation Method ◽  
System Of Systems ◽  
Earth Observation ◽  
Observation System ◽  
Societal Benefit ◽  
Large Scale Network ◽  
Assessment Approach ◽  
Earth Observation System ◽  
Scale Network

The Global Earth Observation System of Systems (GEOSS) is a ten-year-long Implementation Plan, which commenced in 2005 as a group effort by numerous participating countries and organizations to build a large-scale network to effectively monitor and respond to the increasingly complex web of global environmental and socio-economic issues. This paper proposes the Target Evaluation and Correlation Method (TECM) as an assessment approach to GEOSS with its 241 Targets across the nine “Societal Benefit Areas,” along with a method to identify Target Correlation Levels (TCL). Applying TECM allows concluding whether the chosen targets within the GEOSS fall into the domain of System of Systems (SoS), while using TCLs delineates the extent of inclusion for these targets in the form of a system. Furthermore, this research investigates the possible ways of raising the correlation levels of the targets for the cases in which TCLs are low.

Global Earth Observation System of Systems

Insight ◽  
2010 ◽  
Vol 13 (1) ◽  
pp. 34-34
Author(s):  
Lawrence E. McGovern
Keyword(s):  
System Of Systems ◽  
Earth Observation ◽  
Observation System ◽  
Earth Observation System

scholarly journals Analysis of Distributed Measurement Method for Array Antenna Position

2020 ◽  
Vol 10 (10) ◽  
pp. 3480
Author(s):  
Zhen Ma ◽  
Xiyuan Chen
Keyword(s):  
High Precision ◽  
Measurement Method ◽  
Earth Observation ◽  
Array Antenna ◽  
Observation System ◽  
Phase Center ◽  
The Earth ◽  
Earth Observation System ◽  
Distributed Measurement ◽  
Antenna Position

The measurement of the phase center of the airborne array antenna can directly affect the accuracy of the Earth observation system. However, the relationship between the relative motion of each sub-antenna cannot be accurately measured because of the adverse environment of the airborne platform. Therefore, it is necessary to find a suitable method to measure the motion parameters of distributed antennas and the phase center of each element antenna accurately in order to improve the imaging resolution of the Earth observation system. Distributed position and orientation system (POS) technology has high precision, but its measurement error will accumulate with time. So it needs to transfer and align continuously to achieve high-precision measurement. The paper introduces the distributed measurement method of measuring the array antenna position based on the combination of fiber Bragg grating (FBG) sensing technology and POS technology on the aircraft wing. The paper first introduces the technical scheme and principle, then carries out the structural design and method analysis. Next, the structural strength of the experimental model is checked and summarized.

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