Advanced Materials Research Vols. 518-523

Abstract: Visibility, aerosol optical thickness and water vapor are important atmospheric parameters that vary in space and time. Using radiative transfer algorithm to derive surface reflectance from imaging these values would be critical to be assigned. This study will investigate the optimum range of visibility and aerosol loading in Malaysia deriving from atmospheric model. Urban atmospheric model was performed into two major cities in Malaysia to represent for ideal tropical climate. The study found that the farthest visibility range at 50km,the aerosol loading was low and the shortest range at 10 km was contain high aerosol loading. Relatively, aerosol loading estimation is higher at close-shore city (Penang) than inland city (Kuala Lumpur).

Abstract: The paper was supported by The Second Land Investigation Item and took Nanjing city, Jiangsu Province as a case study. The research of the theory, technique and application for land use investigation was achieved by the high-resolution remote sensing images for application, designed a set of technique of land use investigation for land property right management. The database and platform system were established to carry out the dynamic management of land use. Based on the summarization of the correlative studies, The paper designed a set of technique of land investigation for land property right management and also designed the technical process, dealt with the remote sensing images, detected the changed information, classified the land, investigated the land property right and established the database to serve for the management of land property right. And it has been successfully used in Nanjing. It’s unique to use the high-resolution remote sensing images by QuichBird for the scale of 1:5000 in land use investigation in area cities which is also the first time in Nanjing City.

Abstract: In the field of emergency decision support, emergency cases play an important role. Cases’ formal expression is the premise of case application. In this reason, this article mainly researched the construction of emergency case-base, and brings up an emergency case ontology model based on procedure description. Used three-level ontology structure to describe the cases’ attributes information. Otherwise, this model can record and describe the emergency’s procedures completely by adding the descriptions of development process and response process. Finally, we used the 2009 Yaoan Canton Yunnan Province earthquake response case to verify the model.

Abstract: Many observational facts and studies have shown that the climatic conditions in the Hai River Basin, which is the political and cultural centre of China, changed significantly over last half of the 20th century. This study attempts to evaluate the variability of climatic elements such as precipitation and temperature in the basin based on observed meteorological data, and the temporal variations and sudden changes of precipitation and temperature during past 40 years (1961-2000) are analyzed combining moving-average and linear regression with Mann-Kendall method. In addition, the observed climatic changes are attributed to different factors including natural variability and anthropogenic forcing using the fingerprint-based attribution method. The results indicate that: 1) during 1961-2000, the precipitation slightly decreased and the estimated sudden change time was 1965, the temperature significantly increased and the estimated sudden change time was 1964; 2) natural climate variability may be the factors responsible for the observed precipitation changes during the past 40 years in the basin, while anthropogenic forcing may be the main factors responsible for the observed temperature changes during the past 40 years in the basin.

Abstract: Beizhong sub-sag is a secondary fault subsidence of the Bear Lake Depression in Hailarer Basin. Horizontally the sag distributes about 800km2, and thickness of its sedimentary formation is up to 4600m. The main target formation in the Beizhong sub-sag is the Nantun formation, and the Nantun formation is classified into the low and top zones (zone 1 and zone 2), which the zone 1 is the primarily oil reservoir in the Beizhong sub-sag. This paper presents a methodology to establish the relationship charts of the lithomechanics parameters based on the log data. It will provide the theoretical guide for drilling, reservoir fracturing and reservoir reformation in the Nantun formation.

Abstract: Organic matter types of the Early Paleogene core sediments from the Sanshui Basin were analyzed using organic petrology method. The organic matter is dominated by type II. The type I organic matter intermittently occurs at some intervals and type III organic matter only has occasional occurrence. Organic matter of types I, II1 and II2 should be deposited under arid, drier and humid climate condition, respectively. The uppermost part of the Xinzhuang Formation is characterized by type II1, related to a dry climatic condition. Sub-member A of the Honggang Member is dominated by organic Type II2, sandwiched by Type I and II1, reflecting a prevailing humid climatic condition. Sub-member B is characterized by alternations of types II2 and II1 or I, suggesting rapid fluctuations of humid and arid climatic condition. Sub-member C shows type II1 and I in the lower part and shifts to type II2 in middle and upper parts, suggesting a dry climate condition followed by a prevailing humid climatic condition.

Abstract: In this paper, factor analysis are used to study the early Paleogene paleoenvironmental evolution from the Sanshui Basin, and main conclusions can be obtained as follows: stage I (89.0-73.0m), relatively dry and relatively low temperatures; stage II (73.0-52.5m), warm and humidity of the climate and environment; stage III (52.5-22.5m), the ancient climate conditions change quickly, showing the alternating warm and humidity and dry; stage IV (22.5-0m), prevailing warm and moist climatic conditions.

Abstract: According to experiment teaching contents system of remote sensing technology course, the advantage and disadvantage of existing remote sensing experiment textbooks, students' feedback on study and aim of resources environment and the management of urban and rural planning specialty, the paper reconstructed a new experiment teaching contents of remote sensing technology course. The new contents included remote sensing image visual interpretation and mapping, remote sensing image computer interpretation and mapping. The number of experiment was seven, class hours were eighteen. The main feature was good pertinence and applicability, the course used recent remote sensing image in the region continuously in the most experiments, it could make the scattered experiment contents become coherent, then enhance students' professional skill and improve learning effect.

Abstract: China is a country at serious risk from geohazards. With the development of the social economy, the effects of climate change and increment of human activity, the ecological environment has deteriorated. Due to the frequent occurrence of geohazards, not only has the safety of human lives been threatened, but regional sustainable development has also been greatly influence. This paper mainly aims at analyzing correlation and spatial pattern between human activities and geohazards in the Bailong River Basin. Results showed that the correlation coefficient between the settlements and landslide sites is 0.361; meanwhile, the correlation coefficient between settlements and debris flows reaches 0.620. Besides, the spatial distributions of the per-unit-area biocapacity and geohazard sites (landslides and debris flows) are very similar, and the correlation coefficient between total biocapacity and two types of geohazard is respectively 0.217 and 0.562. All results above showed that the greater the density of human activities in this region, the more disasters occurred. The studies indicated a significant correlation, and showed that human activity is the most important influential factor inducing geohazards. We explore the mechanism factors of natural disaster, which have a great significance for disaster management and sustainable socio-economic development.

Abstract: The paper used split window algorithm to research land surface temperature retrieval in Chuxiong prefecture with MODIS image in 2008, the results showed that: land surface temperature of the north, central and southeast was higher, temperature of the east and west are low, especially northwest. Yuanmou county, Shuangbai county and Yongren county were in the top three of land surface maximum temperature in Chuxiong prefecture on January 12th, 2008. Lufeng county, Yuanmou county and Yongren county were in the top three of land surface mean temperature.