Huadong Guo

Jun 9, 2024 | mdpi.com | Ke Zhang |Huadong Guo |Di Jiang |Chunming Han

1. IntroductionThe polar region plays a key role in the climatology, hydrology, and energy cycles of our planet. Due to the harsh natural conditions in polar regions, there are significant obstacles to obtaining data in situ. Satellite remote sensing technology, as a powerful tool, has been widely applied in polar research, particularly with the all-day, all-weather observation capability of spaceborne synthetic aperture radar (SAR).

Apr 19, 2023 | mdpi.com | Ke Zhang |Huadong Guo |Di Jiang |Chunming Han

Abstract:With the rapid development of Earth system science, a new understanding of the complete Earth system has highlighted the crucial importance of integrated observations, especially in research involving large-scale geoscience phenomena. As an active sensor with all-time and all-weather capabilities, synthetic aperture radar (SAR) has been widely used in recent decades for Earth observation.

Apr 19, 2023 | mdpi.com | Qian Li |Huadong Guo |Lei Luo |Xinyuan Wang

1. IntroductionUnderground irrigation systems in Afghanistan and Central Asia are known as “Kariz”. In Xinjiang, China, it is called “karez” in the Uyghur language. In “Shiji” (Records of the Grand Historian of China), it is recorded as “Jingqu” (well and canal). In Persian, it is referred to as “Kanatz-qanat”, while in Iran, it is now called “Qanat” [1]. In Pakistan, it is known as “Karezes”, while in North Africa, it is referred to as “Foggaras”.

Mar 10, 2023 | nature.com | Bo Huang |Huadong Guo

Calculation of individual SDG and SDG Index scores using statistical dataThe United Nations adopted more than 230 indicators to measure the 17 SDGs, but most are defined globally or nationally.