scholarly journals Urban Footprint Processor—Fully Automated Processing Chain Generating Settlement Masks From Global Data of the TanDEM-X Mission

2013 ◽  
Vol 10 (6) ◽  
pp. 1617-1621 ◽  
Author(s):  
T. Esch ◽  
M. Marconcini ◽  
A. Felbier ◽  
A. Roth ◽  
W. Heldens ◽  
...  
Author(s):  
T. Grippa ◽  
M. Lennert ◽  
B. Beaumont ◽  
S. Vanhuysse ◽  
N. Stephenne ◽  
...  

2017 ◽  
Vol 9 (4) ◽  
pp. 358 ◽  
Author(s):  
Taïs Grippa ◽  
Moritz Lennert ◽  
Benjamin Beaumont ◽  
Sabine Vanhuysse ◽  
Nathalie Stephenne ◽  
...  

2016 ◽  
Vol 37 (13) ◽  
pp. 2990-3004 ◽  
Author(s):  
André Twele ◽  
Wenxi Cao ◽  
Simon Plank ◽  
Sandro Martinis

2020 ◽  
Vol 12 (2) ◽  
pp. 252
Author(s):  
Cyprien Alexandre ◽  
Rosa Johary ◽  
Thibault Catry ◽  
Pascal Mouquet ◽  
Christophe Révillion ◽  
...  

In the future, climate change will induce even more severe hurricanes. Not only should these be better understood, but there is also a necessity to improve the assessment of their impacts. Flooding is one of the most common powerful impacts of these storms. Analyzing the impacts of floods is essential in order to delineate damaged areas and study the economic cost of hurricane-related floods. This paper presents an automated processing chain for Sentinel-1 synthetic aperture radar (SAR) data. This processing chain is based on the S1-Tiling algorithm and the normalized difference ratio (NDR). It is able to download and clip S1 images on Sentinel-2 tiles footprints, perform multi-temporal filtering, and threshold NDR images to produce a mask of flooded areas. Applied to two different study zones, subject to hurricanes and cyclones, this chain is reliable and simple to implement. With the rapid mapping product of EMS Copernicus (Emergency Management Service) as reference, the method confers up to 95% accuracy and a Kappa value of 0.75.


Author(s):  
Stuart McKernan ◽  
C. Barry Carter

Convergent-beam electron diffraction (CBED) patterns contain an immense amount of information relating to the structure of the material from which they are obtained. The analysis of these patterns has progressed to the point that under appropriate, well specified conditions, the intensity variation within the CBED discs may be understood in a quantitative sense. Rossouw et al for example, have produced numerical simulations of zone-axis CBED patterns which show remarkable agreement with experimental patterns. Spence and co-workers have obtained the structure factor parameters for lowindex reflections using the intensity variation in 2-beam CBED patterns. Both of these examples involve the use of digital data. Perhaps the most frequent use for quantitative CBED analysis is the thickness determination described by Kelly et al. This analysis has been implemented in a variety of different ways; from real-time, in-situ analysis using the microscope controls, to measurements of photographic prints with a ruler, to automated processing of digitally acquired images. The potential advantages of this latter process will be presented.


2017 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Arman Jayady

Formasi joint operation (JO) antara perusahaan jasa konstruksi asing dan perusahaan jasa konstruksi lokal bukanlah bentuk kemitraan yang baru di Indonesia. JO telah diimplementasi di Indonesia melalui regulasi pemerintah sejak tahun 1991. Melalui formasi JO perusahaan jasa konstruksi lokal diharapkan mampu meningkatkan kapasitas internalnya sehingga dapat meningkatkan daya saing perusahaan jasa konstruksi lokal baik pada pasar domestik maupun global. Data yang dihimpun dari sumber terkait menunjukkan bahwa adanya tren peningkatan proyek konstruksi yang diselenggarakan melalui formasi JO di Indonesia. Hampir tiga dekade JO diimplementasi, namun hingga kini belum diperoleh kejelasan terhadap varian JO yang ada di Indonesia. Untuk memenuhi kuriositas tersebut, penelitian ini secara khusus bertujuan untuk mengeksplorasi varian JO dan karakteristiknya di Indonesia. Studi kualitatif dengan wawancara semi-terstruktur face to face dilakukan dalam penelitian ini dengan melibatkan beberapa praktisi berpengalaman dan berkompeten sehubungan JO di Indonesia. Hasil studi menunjukkan bahwa teridentifikasi dua varian JO bila ditinjau dari perspektif pengendalian proyek dan tiga varian JO bila ditinjau dari perspektif pengelolaan modal kerja.


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