21 Result(s)

Article

Big Data in Earth system science and progress towards a digital twin

The concept of a digital twin of Earth envisages the convergence of Big Earth Data with physics-based models in an interactive computational framework that enables monitoring and prediction of environmental an...

**n Li, Min Feng, Youhua Ran, Yang Su, Feng Liu… in Nature Reviews Earth & Environment (2023)

Article

Simulation of Moon-based Earth observation optical image processing methods for global change study

Global change affected by multiple factors, the consequences of which continue to be far-reaching, has the characteristics of large spatial scale and long-time scale. The demand for Earth observation technolog...

Tong Li, Huadong Guo, Li Zhang, Chenwei Nie, **gjuan Liao… in Frontiers of Earth Science (2020)

Article

Big Earth Data from space: a new engine for Earth science

Big data is a strategic highland in the era of knowledge-driven economies, and it is also a new type of strategic resource for all nations. Big data collected from space for Earth observation—so-called Big Ear...

Huadong Guo, Lizhe Wang, Dong Liang in Science Bulletin (2016)

Article

Scientific big data and Digital Earth

Big data has been a focus of research in science, technology, economics, and social studies. Many countries have already incorporated big data research into their national strategies. This paper elaborates upo...

Huadong Guo, Lizhe Wang, Fang Chen, Dong Liang in Chinese Science Bulletin (2014)

Article

Conceptual study of lunar-based SAR for global change monitoring

As an active microwave remote sensing imaging sensor, Synthetic Aperture Radar (SAR) plays an important role in earth observation. Here we establish a SAR system based on the platform of the moon. This will ai...

HuaDong Guo, Yi**ng Ding, Guang Liu, DaoWei Zhang… in Science China Earth Sciences (2014)

Article

Research on global change scientific satellites

Global change now poses a severe threat to the survival and development of mankind. Large-scale, real-time, highly accurate Earth observation from space has become a key technology used to observe global chang...

HuaDong Guo, WenXue Fu, **nWu Li, Pei Chen, Guang Liu… in Science China Earth Sciences (2014)

Article

Cratering process and morphological features of the **uyan impact crater in Northeast China

By using crater impact morphological theory and mathematics modeling, the paper studies the cratering process and morphological features of the **uyan Crater in Northeast China based on remote sensing imagery,...

**nYuan Wang, Lei Luo, HuaDong Guo, LingLi Mu, Chao Li… in Science China Earth Sciences (2013)

Chapter

Spaceborne Thermal Infrared Observation – An Overview of Most Frequently Used Sensors for Applied Research

This chapter presents an overview of the most commonly used spaceborne sensors for thermal infrared research applications. There is a large fleet of international sensors available which allow for the acquisit...

Claudia Kuenzer, Huadong Guo, Marco Ottinger… in Thermal Infrared Remote Sensing (2013)

Article

Quantitative estimation of the shrub canopy LAI from atmosphere-corrected HJ-1 CCD data in Mu Us Sandland

The leaf area index (LAI) is an important ecological parameter that characterizes the interface between vegetation canopy and the atmosphere. In addition, it is used by most process-oriented ecosystem models. Thi...

Wei Chen, Chun**ang Cao, QiSheng He, HuaDong Guo, Hao Zhang… in Science China Earth Sciences (2010)

Article

Yushu earthquake synergic analysis using multimodal SAR datasets

The large earthquake measuring 7.1 on the Richter scale that occurred in Yushu County, Qinghai Province, China, on April 14, 2010, caused a huge loss of life and major damage to people’s properties. Using thre...

HuaDong Guo, **nYuan Wang, **nWu Li, Guang Liu, Lu Zhang… in Chinese Science Bulletin (2010)

Article

Spatial distribution and inducement of collapsed buildings in Yushu earthquake based on remote sensing analysis

HuaDong Guo, Bing Zhang, Li** Lei, Li Zhang, Yu Chen in Science China Earth Sciences (2010)

Article

An improved automatic detection method for earthquake-collapsed buildings from ADS40 image

Earthquake-collapsed building identification is important in earthquake damage assessment and is evidence for map** seismic intensity. After the May 12th Wenchuan major earthquake occurred, experts from CEOD...

HuaDong Guo, LinLin Lu, JianWen Ma, Martino Pesaresi… in Chinese Science Bulletin (2009)

Article

Analysis on phase information of polarized radar in monitoring vegetation

T-matrix method was employed to analyze the relation between the co-polarization phase difference of back scattering of vegetation and its geometrical and physical parameters, and the effect from the frequency...

Qingguo Feng, Huadong Guo in Chinese Science Bulletin (2001)

Article

Retrieving dry snow density with SIR-C polarimetric SAR data

For a given incidence angle at the snow surface, a greater snow density causes a greater change in the incidence angle at the snow-ground interface; for a given snow density, however, a larger incidence angle ...

Zhen Li, Huadong Guo, Jiancheng Shi in Chinese Science Bulletin (2001)

Article

Subsurface old drainage detection and paleoenvironment analysis using spaceborne radar images in Alxa Plateau

For geological and environmental research in an arid area, a unique advantage of radar remote sensing is that radar wave can penetrate a certain layer of dry sand (a few centimeters to meters thick) to reach t...

Huadong Guo, Hao Liu, **nyuan Wang, Yun Shao… in Science in China Series D: Earth Sciences (2000)

Article

Relative dielectric constant from dry rocks

Relative dielectric constant is an important physical factor in the theory of microwave remote sensing and electromagnetic transmission. This note reports the results of detecting relative dielectric constant ...

**angyun Wang, Huadong Guo, Chao Wang, Peirong Chen… in Chinese Science Bulletin (1999)

Article

Application of ERS-1 scatterometer data to studying land surfaces

ERS-1 WSC data were obtained by international cooperation. The distributive characteristics of radar backscattering coefficient image of China land surface are analyzed and the research results are presented. ...

**angyun Wang, Chao Wang, Huadong Guo, Yangshen Shi in Chinese Science Bulletin (1998)