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ALOS-2, which was launched on the 24th of May 2014, is equipped with a fully polarimeric L-band SAR (PALSAR-2) [1, 2]. Unlike ALOS-PALSAR, which used to collect polarimetric (PLR) data at one incidence angle (about 22°) [3], PALSAR-2 offers the possibility of providing PLR measurements at various beams (FP6-3 to FP6-6), with incidence angle varying from 25° to 35° [4]. Recently, several investigations...
Comparing with its former C-band fellows ERS and Envisat, Sentinel data is favored for its short revisit days (12 days) and free distribution policy. Moreover, TOPS mode can cover a much larger monitoring area (250 km in azimuth) while maintaining a relative high range/ azimuth resolution (4m*20m in general). The advantages of TOPS mode made it become the default mode for Sentinel-1. This paper describes...
Clear-cutting and logging operations are the most drastic and wide-spread changes that affects the hydrological and carbon-balance properties of forested areas.
Earth Observation time-series data are valuable information to monitor the change of the environment. But access to data and the execution of analysis tools are often time-consuming tasks and data processing knowledge is required. In order to allow user-friendly applications to be built, tools are needed to simplify the access to data archives and the analysis of such time-series data. In this work,...
Water masses with contrasting optical properties may reside in coastal zones. The shape of such easily recognizable patches and plumes change in time depending on currents and dynamics of specific ingredients, (mostly nutrients and resuspended matter). Based on a long-term (1966–2013) hindcast of currents, water fluxes in the semi-enclosed sub-basins of the Baltic Sea were reconstructed. Taking into...
In summary, the JPSS Proving Ground Program has been a huge success. The innovative use of S-NPP data and the full integration of the user community ensured thorough evaluation of capabilities and rapid transition from research to operations. The JPSS Program's multi-year commitment to this program allows project teams to define a successful path to assist the user community in fully integrating new...
The history, current status and future program of the Chinese Meteorological Satellite, i.e. Fengyun satellite (FY) is introduced in this presentation. Currently, there are 2 FY polar satellites and 3 FY geostationary satellites are in operational. The type of the instruments amounted on FY satellites includes the optical imager, the atmospheric sounder, the microwave imager, the atmospheric composition...
The upcoming suite of Sentinel satellites in combination with their free and open access data policy will open new perspectives for establishing a spatially and temporally detailed monitoring of the Earth's surface. The Sentinel fleet will provide a so-far unique coverage with Earth observation (EO) data and new possibilities with respect to the implementation of innovative methodologies, techniques...
This paper reports the findings based on ALOS-1 and GRACE satellite data for the purpose of monitoring land surface subsidence due to groundwater extraction in the Ordos Basin, China. Twenty ALOS-1 PALSAR data acquired between 8 January 2007 and 19 January 2011 are utilized in the time-series InSAR interferometry (TS-InSAR) analysis while the total water storage observations derived from the Gravity...
Monitoring the dynamics of surface water using remote sensing technology is an essential research topic in many research areas. Change vector analysis (CVA) is a change detection method by constructing a vector of change based on multi-temporal images. It has been widely applied in land use and land cover change detection. Considering the specialty of surface water's spectral characteristics, it is...
Malaysia has invested on public transport over the years to improve quality of leaving. Transportation has been identified as the key area in Malaysia's government transformation programme. In Malaysia, many people still choose to use their own transport compared to public transport to travel. For efficient public transport service such as bus, real-time tracking/monitoring must be available apart...
The Pearl River delta is one of the most densely populated areas in China, with high urbanization and rapid economic development. The drama change of land use in recent years has been matched by rising pollution of water. With monitoring data of water quality and Landsat OLI8 images 2013, this paper analyzed the relationship between land use and water quality in the river net area of Pearl River delta...
Due to the limitation of the band range of satellite sensor and the influence of the earth's atmosphere, the Landsat remote sensing images are inevitably be covered with clouds, which bring many difficulties to subsequent using and interpretation(environmental monitoring, resource investing-ation, agricultural production, ecological protection, et al). So detecting cloud accurately in remote sensing...
This study presents a modified model for feature extraction of multivariate texture from remotely sensed imagery, which measures the spatial correlation of all the bands of a multispectral image with a designed distance metric using Cholesky decomposition of matrix and the transformation for Mahalanobis-Euclidean space. On this basis, a method of crop mapping and area extracting is developed and compared...
High loading of orthophosphate phosphorus is one of the serious problems in the coastal areas of China. Therefore, effectively monitoring the temporal dynamics and spatial heterogeneities of orthophosphate phosphorus concentration (COP) is crucial. The Environmental Protection Department (EPD) of Hong Kong has done monthly sampling and determination of COP at five fixed monitoring stations in Shenzhen...
China has endured severe geological disasters for a long time, and various kinds of geological disasters with high frequency and wide geographical distribution have caused serious damages. Remote sensing has become an important approach to investigating and monitoring geological disasters like collapse, landslide and debris flow. The fourth China & Brazil Earth Resource Satellite (CBERS-04) provide...
Persistent scatterer interferometry(PSI) technology has been applied to ground subsidence monitoring in urban area and achieved good results. However, only displacement along the direction of radar line of sight can be obtained by single platform SAR images, so the deformation results can't reflect the real settlement in the vertical direction. With the increasing of current space-borne SAR satellites,...
Fireworks/firecrackers have always played an important role in traditional Chinese New Year. However, several pollutants are emitted while burning fireworks/firecrackers. Among them, fine particulate matter (PM2.5) draws extensive attention due to its negative effect on human body. Previous studies have proved fireworks/firecrackers displays can raise regional PM2.5 concentration, but studies are...
Glacier change over the Qinghai-Tibet Plateau (QTP) provides an important clue to climate change in the remote high-altitude areas, and impacts various aspects of regional environment. Observations of mountain glaciers over the QTP are yet far from sufficient. Remote sensing techniques enable mapping and monitoring glaciers over an extensive region, from different dimensions and with regular revisit...
Guangzhou as the political, economic and cultural center of Southern China, the social economy has achieved rapid development and urban spatial structure changed dramatically after 30 years of reform and opening up. With the accelerated process of urbanization, environmental problems have become increasingly serious and urban heat island effect in many environmental problems are particularly prominent,...
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