Explanipedia

Individual Planted Tree Seedling Detection from UAV Multimodal Data with the Alternate Scanning Fusion Method Open

Taoming Qi, Yaokai Liu, Junxiang Tan, Pengyu Yin, Changping Huang , et al. · 2025

Detection of planted tree seedlings at the individual level is crucial for monitoring forest ecosystems and supporting silvicultural management. The combination of deep learning (DL) object detection algorithms and remote sensing (RS) data…

Prediction of potential induced degradation for TOPCon PV modules working in field based on accelerated stress testing Open

Zhiwei Li, Kai Yu, Le Wang, Jian Huang, Xilian Sun , et al. · 2025

Reducing the temperature of monofacial double-glass photovoltaic module by enhancing in-plane thermal conductivity Open

Xilian Sun, Yangping Tan, Xintao Cui, Lang Zhou, Xiuqin Wei , et al. · 2025

Photovoltaic cooling is critical to ensure stable and safe operation of PV power stations. Conventional cooling methods focus on heat dissipation from the surface of PV modules. Few studies have shown the in-plane thermal conductivity infl…

A Practical Approach for Rapid Grading Cotton Verticillium Wilt Severity for Remote Sensing Monitoring Open

Yaohui Gui, Huang Chang-ping, Junru Zhou, Mi Yang, Xiaofeng Qiu , et al. · 2025

Designs for photovoltaic glass surface texturing to improve transmittance and minimize glare Open

Yangping Tan, Xilian Sun, Changxin Tang, Lang Zhou, Xiuqin Wei , et al. · 2024

Planar glass cover creates optical reflection loss and glare, which is harmful to energy efficiency and effective operation of PV modules, especially at larger angles of incidence (AOIs). Textured surfaces can reduce reflections and glare …

Time-Series Cross-Radiometric Calibration and Validation of GF-6/WFV Using Multi-Site Open

Yingxian Wang, Yaokai Liu, Weiwei Zhao, Jian Zeng, Huixian Wang , et al. · 2024

The GaoFen6 (GF-6) satellite, equipped with a wide full-swath (WFV) sensor, offers high spatial resolution and extensive coverage, making it widely utilized in agricultural and forestry classification, land resource monitoring, and other f…

Reducing Temperature of Monofacial Double-Glass Photovoltaic Module by Enhancing In-Plane Thermal Conductivity Open

Xilian Sun, Yangping Tan, Xintao Cui, Lang Zhou, Xiuqin Wei , et al. · 2024

Mapping Spatially Seamless Fractional Vegetation Cover over China at a 30-m Resolution and Semimonthly Intervals in 2010–2020 Based on Google Earth Engine Open

Tian Zhao, Xihan Mu, Wanjuan Song, Yaokai Liu, Yun Xie , et al. · 2023

Fractional vegetation cover (FVC) is a critical biophysical parameter that characterizes the status of terrestrial ecosystems. The spatial resolutions of most existing FVC products are still at the kilometer level. However, there is growin…

Reducing Temperature of Monofacial Double-Glass Module by Enhancing In-Plane Thermal Conductivity Open

Xilian Sun, Xingtao Cui, Lang Zhou, Xiuqin Wei, Jikui Zhang , et al. · 2023

Time-series absolute radiometric calibration and trend analysis of the wide swath sensor onboard GF-6 satellite with automatic radiometric calibration site Open

Yaokai Liu, Lingling MA, Renfei WANG, QingChuan ZHENG, Peilan SONG , et al. · 2023

卫星遥感载荷在轨绝对辐射定标对保证不同来源产品的辐射一致性和提升高分共性产品反演精度至关重要。传统基于人工同步测量的场地定标方法由于受到卫星过境时刻成像条件、地表及大气测量条件等限制,难以满足准确校正遥感载荷自身辐射性能在生命周期内变化的需求。本文针对国产高分六号宽幅载荷(GF-6/WFV)大角度观测的特点,提出了利用自动辐射定标场的GF-6/WFV载荷在轨时序绝对辐射定标方法,基于该方法可得到载荷可量化的时序绝对辐射定标结果及其不确定度,并且通过显著提升在轨定标频次实现卫…

Research on Comfort Evaluation Model of Urban Residents’ Public Space Lighting Integrating Public Perception and Nighttime Light Remote Sensing Data Open

Shengrong Wei, Weili Jiao, Huichan Liu, Tengfei Long, Yaokai Liu , et al. · 2022

With the development of a sustainable lifestyle, people are paying more and more attention to the comfort of their own living environment, including public space lighting, which is immediately accessible to residents. The demand on its qua…

Calibration and Data Quality Assurance Technical Advancements for Quantitative Remote Sensing in the DRAGON 4 Project Open

Lingling Ma, Yongguang Zhao, Chuanrong Li, Philippe Goryl, Cheng Liu , et al. · 2021

Robust calibration and validation (Cal and Val) should guarantee the accuracy of the retrieved information, make the remote sensing data consistent and traceable, and maintain the sensor performance during the operational phase. The DRAGON…

Assessment of BRDF Impact on VIIRS DNB from Observed Top-of-Atmosphere Reflectance over Dome C in Nighttime Open

Jinjin Li, Shi Qiu, Yu Zhang, Benyong Yang, Caixia Gao , et al. · 2021

The Day–Night Band (DNB) imaging sensor of the Visible Infrared Imaging Radiometer Suite (VIIRS) adds nighttime monitoring capability to the Suomi National Polar-Orbiting Partnership and National Oceanic and Atmospheric Administration 20 w…

An Approach for Evaluating Multisite Radiometry Calibration of Sentinel-2B/MSI Using RadCalNet Sites Open

Caixia Gao, Yaokai Liu, Zhifeng Wu, Lingling Ma, Shi Qiu , et al. · 2021

The Sentinel-2B offers high spatial resolution optical imagery from 13 bands in the visible, near infrared, and short-wave infrared range of the electromagnetic spectrum, providing enhanced continuity to monitoring global terrestrial surfa…

Sirt1 improves heart failure through modulating the NF-κB p65/microRNA-155/BNDF signaling cascade Open

Bin Lin, Hui Zhao, Li Li, Zhenzhen Zhang, Nan Jiang , et al. · 2020

Heart failure (HF) affects over 26 million people worldwide, yet the pathologies of this complex syndrome have not been completely understood. Here, we investigated the involvement of deacetylase Sirtuin 1 (Sirt1) in HF and its downstream …

Determination of the Key Comparison Reference Value from Multiple Field Calibration of Sentinel-2B/MSI over the Baotou Site Open

Caixia Gao, Yaokai Liu, Jinru Liu, Lingling Ma, Zhifeng Wu , et al. · 2020

Field calibration is a feasible way to evaluate space-borne optical sensor observations via natural or artificial sites on Earth’s surface with the aid of synchronous surface and atmospheric characteristic data. Since field calibration is …

Uncertainty Analysis for RadCalNet Instrumented Test Sites Using the Baotou Sites BTCN and BSCN as Examples Open

Lingling Ma, Yongguang Zhao, Emma Woolliams, Caihong Dai, Ning Wang , et al. · 2020

Vicarious calibration and validation techniques are important tools to ensure the long-term stability and inter-sensor consistency of satellite sensors making observations in the solar-reflective spectral domain. Automated test sites, whic…

On-orbit radiometric calibration of the optical sensors on-board SuperView-1 satellite using three independent methods Open

Yaokai Liu, Lingling Ma, Ning Wang, Yonggang Qian, Yongguang Zhao , et al. · 2020

On-orbit radiometric calibration of the optical sensors on-board SuperView-1 satellites is the foundation for further quantitative applications. A field calibration campaign was orchestrated to radiometrically calibrate the SuperView-1 opt…

Radiometric Cross-Calibration of GF-4/VNIR Sensor With Landsat8/OLI, Sentinel-2/MSI, and Terra/MODIS for Monitoring Its Degradation Open

Caixia Gao, Yaokai Liu, Shi Qiu, Chuanrong Li, Lingling Ma , et al. · 2020

Optical satellite sensor generally suffers from drifts and biases relative to their prelaunch calibration, caused by launch and the space environment. Radiometric cross-calibration is valuable for calibrating sensors without coincident sur…

Retrieval of Surface Temperature and Emissivity From Ground-Based Time-Series Thermal Infrared Data Open

Yonggang Qian, Ning Wang, Kun Li, Hua Wu, Si‐Bo Duan , et al. · 2020

This article addressed the simultaneous retrieval of land surface temperature (LST) and emissivity (LST&E) from the time-series thermal infrared data. On the basis of the assumption that the time-series LSTs can be described by a piecewise…

Land surface reflectance retrieval from optical hyperspectral data collected with an unmanned aerial vehicle platform Open

Yaokai Liu, Chuanrong Li, Lingling Ma, Yonggang Qian, Ning Wang , et al. · 2019

We present a physical-based atmospheric correction algorithm for land surface reflectance retrieval based on radiative transfer model MODTRAN 5, with which the aerosol optical thickness @550 nm (AOT@550nm), columnar water vapor (CWV) could…

Vicarious radiometric calibration/validation of Landsat-8 operational land imager using a ground reflected radiance-based approach with Baotou site in China Open

Yaokai Liu, Lingling Ma, Ning Wang, Yonggang Qian · 2017

Radiometric calibration of the Landsat-8 operational land imager (OLI) sensor is a key step that enables additional quantitative research and application of the data. This study introduces a ground reflected radiance-based approach to vica…

In-Flight Radiometric Performances Analysis Of An Airborne Optical Payload Open

Caixia Gao, Chuanrong Li, Lingli Tang, Lingling Ma, Yaokai Liu , et al. · 2016

Performances analysis of remote sensing sensor is required to pursue a range of scientific research and application objectives. Laboratory analysis of any remote sensing instrument is essential, but not sufficient to establish a valid infl…

Land surface temperature retrieved from airborne multispectral scanner mid-infrared and thermal-infrared data Open

Yonggang Qian, Ning Wang, Lingling Ma, Yaokai Liu, Hua Wu , et al. · 2015

Land surface temperature (LST) is one of the key parameters in the physics of land surface processes at local/global scales. In this paper, a LST retrieval method was proposed from airborne multispectral scanner data comparing one mid-infr…

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