Search Results - "Qu, John"

Quantifying Seagrass Density Using Sentinel-2 Data and Machine Learning by Meister, Martin, Qu, John J.

“…Seagrasses, rooted aquatic plants growing completely underwater, are extremely important for the coastal ecosystem. They are an important component of the…”
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Detection of Asian Dust Storm Using MODIS Measurements by Xie, Yong, Zhang, Wenhao, Qu, John

“…Every year, a large number of aerosols are released from dust storms into the atmosphere, which may have potential impacts on the climate, environment, and air…”
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NMDI: A normalized multi-band drought index for monitoring soil and vegetation moisture with satellite remote sensing by Wang, Lingli, Qu, John J.

“…A new index, the Normalized Multi‐band Drought Index (NMDI), is proposed for monitoring soil and vegetation moisture from space. NMDI is defined as , where R…”
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Agricultural drought monitoring using MODIS-based drought indices over the USA Corn Belt by Wu, Di, Qu, John J., Hao, Xianjun

“…In 2012, the USA Corn Belt, an intensive agricultural region of the USA, was hit by a widespread severe drought, affecting states such as Illinois, Iowa,…”
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Monitoring Extreme Agricultural Drought over the Horn of Africa (HOA) Using Remote Sensing Measurements by Qu, Carolyn, Hao, Xianjun, Qu, John J.

“…The Horn of Africa ((HOA), including Djibouti, Eritrea, Ethiopia, and Somalia) has been slammed by extreme drought within the past years, and has become one of…”
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Downscaling of Surface Soil Moisture Retrieval by Combining MODIS/Landsat and In Situ Measurements by Xu, Chenyang, Qu, John, Hao, Xianjun, Cosh, Michael, Prueger, John, Zhu, Zhiliang, Gutenberg, Laurel

“…Soil moisture, especially surface soil moisture (SSM), plays an important role in the development of various natural hazards that result from extreme weather…”
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Satellite remote sensing applications for surface soil moisture monitoring: A review by WANG, Lingli, QU, John J.

“…Surface soil moisture is one of the crucial variables in hydrological processes, which influences the exchange of water and energy fluxes at the land…”
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Monitoring urban carbon emissions from energy consumption over China with DMSP/OLS nighttime light observations by Wang, Li, Zhang, Niyu, Deng, Huanguang, Wang, Peifa, Yang, Fei, Qu, John J., Zhou, Xiaoxue

“…This paper constructs a model to accurately estimate the urban CO 2 emissions in 2000, 2005, and 2013 in China, using the combined data of DMSP/OLS nighttime…”
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Validation of MODIS aerosol optical depth product over China using CARSNET measurements by Xie, Yong, Zhang, Yan, Xiong, Xiaoxiong, Qu, John J., Che, Huizheng

“…This study evaluates Moderate Resolution Imaging Spectroradiometer (MODIS) Aerosol Optical Depth (AOD) retrievals with ground measurements collected by the…”
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Horizontal visibility trends in China 1981–2005 by Che, Huizheng, Zhang, Xiaoye, Li, Yang, Zhou, Zijiang, Qu, John J.

“…Trends in Chinese horizontal visibility, the frequency of visibility >19 km, and haziness for the period between 1981 and 2005 were evaluated based on data for…”
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Spatiotemporal characterization of the urban sprawl and its impacts on urban island in China with DMSP/OLS and MODIS measurements by Wang, Li, Li, Wenjin, Wang, Peifa, Liu, Xiuyan, Yang, Fei, Qu, John J

“…The rapid development of cities has led to the urban sprawl to the suburbs. Studies have shown that urban sprawl leads to the increasing intensity of heat…”
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Downscaling Land Surface Temperature Derived from Microwave Observations with the Super-Resolution Reconstruction Method: A Case Study in the CONUS by Li, Yu, Sun, Donglian, Zhan, Xiwu, Houser, Paul, Yang, Chaowei, Qu, John J.

“…Optical sensors cannot penetrate clouds and can cause serious missing data problems in optical-based Land Surface Temperature (LST) products. Under cloudy…”
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Key rules of life and the fading cryosphere: Impacts in alpine lakes and streams by Elser, James J., Wu, Chenxi, González, Angélica L., Shain, Daniel H., Smith, Heidi J., Sommaruga, Ruben, Williamson, Craig E., Brahney, Janice, Hotaling, Scott, Vanderwall, Joseph, Yu, Jinlei, Aizen, Vladimir, Aizen, Elena, Battin, Tom J., Camassa, Roberto, Feng, Xiu, Jiang, Hongchen, Lu, Lixin, Qu, John J., Ren, Ze, Wen, Jun, Wen, Lijuan, Woods, H. Arthur, Xiong, Xiong, Xu, Jun, Yu, Gongliang, Harper, Joel T., Saros, Jasmine E.

“…Alpine regions are changing rapidly due to loss of snow and ice in response to ongoing climate change. While studies have documented ecological responses in…”
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Carbon Dioxide Emissions and Methane Flux from Forested Wetland Soils of the Great Dismal Swamp, USA by Gutenberg, Laurel, Krauss, Ken W., Qu, John J., Ahn, Changwoo, Hogan, Dianna, Zhu, Zhiliang, Xu, Chenyang

“…The Great Dismal Swamp, a freshwater forested peatland, has accumulated massive amounts of soil carbon since the postglacial period. Logging and draining have…”
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A Decision Rule and Machine Learning-Based Hybrid Approach for Automated Land-Cover Type Local Climate Zones (LCZs) Mapping Using Multi-Source Remote Sensing Data by Islam, Md Didarul, Di, Liping, Zhang, Chen, Yang, Ruixin, Qu, John J., Tong, Daniel, Guo, Liying, Lin, Li, Pandey, Aran

“…This article presents a streamlined, automated classification method to map land-cover-type local climate zones (LCZs). Using a two-phase hybrid approach, we…”
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Oil spill detection with fully polarimetric UAVSAR data by Liu, Peng, Li, Xiaofeng, Qu, John J., Wang, Wenguang, Zhao, Chaofang, Pichel, William

“…► We use UAVSAR images to monitor oil spill event in Gulf of Mexico. ► Fully polarimetric decomposition algorithms are used to extract oil spill information. ►…”
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Analysis of hydrological drought frequency for the Xijiang River Basin in South China using observed streamflow data by Wu, Zhiyong, Lin, Qingxia, Lu, Guihua, He, Hai, Qu, John J.

“…Climate change is likely to lead to an increased frequency and intensity of extreme weather events, including floods and droughts. Hydrological drought refers…”
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Estimating dry matter content from spectral reflectance for green leaves of different species by Wang, Lingli, Qu, John J, Hao, Xianjun, Hunt, E. Raymond

“…Efficient and accurate detection of the temporal dynamics and spatial variations of leaf dry matter content would help monitor key properties and processes in…”
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Monitoring Surface Soil Moisture Content over the Vegetated Area by Integrating Optical and SAR Satellite Observations in the Permafrost Region of Tibetan Plateau by Xu, Chenyang, Qu, John J., Hao, Xianjun, Wu, Di

“…Surface soil moisture (SSM), the average water content of surface soil (up to 5 cm depth), plays a key role in the energy exchange within the ecosystem. We…”
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Sensitivity studies of the moisture effects on MODIS SWIR reflectance and vegetation water indices by Wang, Lingli, Qu, John J., Hao, Xianjun, Zhu, Qingping

“…The effects of soil moisture and leaf water content on canopy reflectance of MODIS shortwave infrared (SWIR) bands 5, 6, and 7 and water-related indices are…”
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