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Xiaoling Chen - IEEE Xplore Author Profile

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Process-based ecosystem models are increasingly used to simulate the effects of a changing environment on vegetation growth in the past, present, and future. To improve the simulation, the multimodel ensemble mean (MME) and ensemble Bayesian model averaging (EBMA) methods are often used in optimizing the integration of ecosystem model ensemble. These two methods were compared with four other optim...Show More
Forest resources play an important ecological role on the earth. The traditional forest resource inventory methods are grueling and time-consuming. It is insufficient by using single-date remote sensing data to identify the forest vegetation types. Fortunately, multitemporal images have advantages of seasonal variation pattern in different forest vegetation. Duchang County as a study case, GF-1, L...Show More
Vegetation cover and climate are the major factors affecting water and carbon cycle and altering the ecosystem services, but their impacts on the coupling of water and carbon cycle are confounded at the watershed scale. This study aimed to quantify the impacts of vegetation cover and climate on two important parameters (gross ecosystem productivity (GEP) and water yield) in water and carbon cycle ...Show More
As the second largest freshwater lake in Yunnan Province of China, Erhai Lake has suffered harmful algal blooms (HABs) since 1996. In January 2017, Dali government issued a series of ecological protection measures to prevent the outbreak of HABs. In order to evaluate the effectiveness of those protection measures, we studied the spatiotemporal distribution of HABs in Erhai Lake by using multi-sour...Show More
The suspended particle size distribution (PSD) provides crucial information for the study of water environment. Based on the in situ data from wet and dry season in 2008-2011, the paper studied the temporal and spatial characteristics of PSD in Poyang Lake and its influence on water optical properties. The median particle size (Dv50) shows more significant variation in dry season between different...Show More
Hydrodynamic process in the largest freshwater lake in China, Poyang Lake from 2009 to 2011 was simulated by using the lake hydrodynamic model, EFDC. Results showed that simulated daily average water elevation and discharges consisted with in-situ observations. To better evaluate the model accuracy and solve the problem of field measurements deficiency, remote sensing data were employed to validat...Show More
Remote sensing-derived level-area models have been widely used in inundation analysis of large lakes. The current study aimed to optimize the model for Poyang Lake, the largest freshwater lake in China, where the hydrological connections are highly dynamic and complex. The inundation data delineated using 217 MODIS images between 2003 and 2005 together with concurrent water level data were used to...Show More
In this study, a model is developed to quantify the land use contribution to nighttime light using coarse-resolution nighttime light imagery and fine-resolution land use data. We assumed that the nighttime light of a region can be represented by a linear combination of land use areas, with its nighttime light intensity (NLI) as coefficient. Based on an unmixing strategy, the NLI of each land use t...Show More
The objective of this research is to investigate the potential of nighttime light images, acquired with Defense Meteorological Satellite Program Operational Linescan System (DMSP-OLS), in evaluating global armed conflicts. To achieve this purpose, we assessed the relationship between armed conflicts and the satellite-observed nighttime light variation over 159 countries through annual composites o...Show More
A severe drought occurred in the region of Poyang Lake, the largest freshwater lake in China in early 2011, causing various environmental problems and posing a significant threat to local animals and humans. The event has caught extensive attention from many environmental groups as well as from national and international news media. Yet there has been no quantitative report on the severity of the ...Show More
Investigations in data quality and uncertainty modeling are becoming key topics in geoinformation science. This paper models a collection of outcomes from a standard segmentation algorithm as a random set. It quantifies extensional uncertainties of extracted objects using statistical characteristics of random sets. The approach is applied to a synthetic data set and vegetation patches in the Poyan...Show More
With pixel un-mixing, the omission of pixel caused by mixed pixel can be resolved so as to improve the classification accuracy. But the trouble is only the proportion of each end member object in one pixel which can be got through pixel un-mixing, while the spatial distribution of is uncertain. The objective of this study is to introduce the sub-pixel mapping based on spatial attraction model and ...Show More
Precipitation is important in many fields. It is meaningful and valuable to estimate the spatial distribution of precipitation. However, existing methods introduced for precipitation interpolation are not satisfactory. In this paper, geographic and topographic factors are taken into consideration and put into Cokriging method to interpolate the precipitation maps of annual precipitation in Poyang ...Show More
Snow cover is one of the most widely used parameters in snow monitoring. In this paper, AMSR-E brightness temperature, land cover production and in-situ meteorological observations in Xinjiang, China were used, and the decision-tree method was introduced to monitor the snow cover. In its first step, a new snow index, NDPMSI, was proposed to classify the study area into snow cover, non-snow cover a...Show More
Vulnerability assessment acquaints us with degree of risks in global-environmental-change context. Remote sensing (RS) and geographic information system (GIS) is seldom applied to assess comprehensive vulnerability as indispensable socioeconomic factors are hardly expressed by them. Thus we selected counties in Jiangxi Province as study area, calculated vulnerability index VI of them by aggregatin...Show More
The Normalized Difference Vegetation Index (NDVI) is an important parameter frequently used to characterize the land surface using remotely sensed satellite imagery. Because of the heterogeneity of the land surface, pixel-wise NDVI derived from coarse resolution sensors may induce errors or uncertainty. Several studies have investigated the spatial scale dependencies of NDVI in different approache...Show More
Geomatics is a new developed science represented by "3S" technology including communication and computer technology. It is ideally suited for engineering management, especially in the construction management of large construction projects which include a large of spatial information. In this paper, spatial information technology will be introduced to engineering management filed to construct of EG...Show More