Damage mapping after the 2017 Puebla Earthquake in Mexico using high-resolution Alos2 Palsar2 data

On September 19, 2017, the Mw7.1 Puebla Earthquake caused significant destruction in several cities in central Mexico. In this paper, two pre- and one post-event ALOS2-PALSAR2 data were used to detect the damaged area around Izucar de Matamoros town in Mexico. First, we identify the built-up areas using pre-event data. Second, we evaluate the earthquake-induced damage areas using an RGB color-coded image constructed from the pre- and co-event coherence images. Our analysis showed that the green and red bands display a great potential to discriminate the damaged areas.Accepted manuscrip

A framework of rapid regional tsunami damage recognition from post-event TerraSAR-X imagery using deep neural networks

Near real-time building damage mapping is an indispensable prerequisite for governments to make decisions for disaster relief. With high-resolution synthetic aperture radar (SAR) systems, such as TerraSAR-X, the provision of such products in a fast and effective way becomes possible. In this letter, a deep learning-based framework for rapid regional tsunami damage recognition using post-event SAR imagery is proposed. To perform such a rapid damage mapping, a series of tile-based image split analysis is employed to generate the data set. Next, a selection algorithm with the SqueezeNet network is developed to swiftly distinguish between built-up (BU) and nonbuilt-up regions. Finally, a recognition algorithm with a modified wide residual network is developed to classify the BU regions into wash away, collapsed, and slightly damaged regions. Experiments performed on the TerraSAR-X data from the 2011 Tohoku earthquake and tsunami in Japan show a BU region extraction accuracy of 80.4% and a damage-level recognition accuracy of 74.8%, respectively. Our framework takes around 2 h to train on a new region, and only several minutes for prediction.This work was supported in part by JST CREST, Japan, under Grant JPMJCR1411 and in part by the China Scholarship Council. (JPMJCR1411 - JST CREST, Japan; China Scholarship Council

Fusion of Real-time Tsunami Simulation and Remote Sensing for Mapping the Impact of Tsunami Disaster

Bringing together state-of-the-art high-performance computing, remote sensing and spatial information sciences, we establish a method of real-time tsunami inundation forecasting, damage estimation and mapping to enhance disaster response. Right after a major (near field) earthquake is triggered, we perform a real-time tsunami inundation forecasting with use of high-performance computing platform. Given the maximum flow depth distribution, we perform quantitative estimation of exposed population using census data and the numbers of potential death and damaged structures by applying tsunami fragility curve. After the potential tsunami-affected areas are estimated, the analysis gets focused and moves on to the "detection" phase using remote sensing. Recent advances of remote sensing technologies expand capabilities of detecting spatial extent of tsunami affected area and structural damage. Especially, a semi-automated method to estimate building damage in tsunami-affected areas is developed using optical sensor data and a set of pre-and post-event high-resolution SAR (Synthetic Aperture Radar) data. The method is verified through the case studies in the 2011 Tohoku and other potential tsunami scenarios, and the prototype system development is now underway in Kochi prefecture, one of at-risk coastal city against Nankai trough earthquake. In the trial operation, we verify the capability of the method as a new tsunami early warning and response system for stakeholders and responders

Analysis of the socioeconomic works of Rudolf Bićanić from the perspective of global history

U radu se na osnovu relevantne literature razmatra i analizira gospodarsko i političko djelovanje hrvatskog ekonomista Rudofa Bićanića (1905.-1968.) iz perspektive seljačke ideologije te ekonomske i globalne povijesti. Također se analiziraju razlike između ideologije i ekonomske stvarnosti. Njegova djela se u ovom članku razmatraju u komparatističkoj perspektiviRudolf Bićanić was a narodnjak or populist who has long studied people’s daily lives. In addition to knowing how people live, he sought to discover trends and patterns in their living economy. He wanted to analyze economic history, the people’s economy, and give guidelines for its improvement. It turns out that this kind of populism is very different from today’s populism. Specifically, Bićanić has consistently analyzed the static nature of people’s lives over a long period to suggest measures for future changes. I wrote a treatise about Rudolf Bićanić’s life and work in the late 1980 s. Since then, and especially recently, various biographical aspects of his life have been discussed. Based on all this, especially recent research, I would like to revisit the content and importance of his work. This article focuses on the first half of Bićanić’s life and is the first part of Bićanić’s research. Before World War II, he organized economic activities, and during the war he was a high-ranking official of the Yugoslav government in exile, trying to become a spokesman for the Eastern European peasant movement. In the early 1930 s, Bićanić emphasized the cultural homogeneity of the peasants, while observing the current situation in which the peasants left their homes in search of employment for agricultural workers after the collapse of the extended family. At this point, Bićanić sought to manage agriculture and the peasant economy through economic planning by the political power from rural to government. However, shortly before becoming a high-ranking government official, he advocated the importance of coordinating agriculture with the non-agricultural sector and advocated economic policies that were not easily dependent on the Nazi Germany economic zone. During World War II, he also collaborated with the British Socialists in the fight against fascism, and gradually called for peasants’ cooperation with workers and others to free his country from fascism. The direct impetus for the final decision was that their home peasants supported the Communistled partisan movement. At this point, he convinced the Croatian Peasant Party leaders that the only true political combination that could bring a better future to the Croatian Peasant Party is a lasting alliance of peasants and workers. According to Ionescu theory of populism in Russia and Eastern Europe, populism becomes peasantism, and then it becomes neo-populism. However, unlike Romanian peasantist Virgil Madgearu, Bićanić does not rely on modern co-operatives and seeks to exert political power from the region to the government. His political power was to be used to eradicate peasant poverty and at the same time protect the peasant or „Peasant Europe” culture. In this respect, unlike Erdei Ferenc in Hungary, even with the same neo-populism, Bićanić seems to have given his commitment to the long-term trends of peasant culture. In the second part of this study, I would like to discuss how Bićanić, under the Communist rule, analyzed the long-term values and culture of peasants based on family management and rural communities, or what remarks Bićanić took about relations in the multinational state in order not to repeat the failure during the interwar period in Yugoslavia