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农业干旱是指由于降水不足和蒸发过度而导致的土壤水分亏损，在生长季会影响作物生产和生态系统功能。2021年春末夏初，中亚大部分地区遭受了严重的农业干旱，对农业和畜牧业造成了严重影响，这引发了人们对农业干旱的成因及其未来可能变化问题的高度关注。2021年的中亚极端农业干旱并非一次偶然事件，在过去30年中，受当地温度持续升高和降水减少的影响，中亚土壤湿度在生长季初期显著降低，农业干旱加剧，令该地区面临严...
Nature Geoscience：地球轨道可直接驱动千年尺度气候震荡（图）
地球轨道 千年尺度 气候震荡
2023/1/17
地球轨道的变化无需通过改变地球内部气候背景就可直接触发气候突变。一个由中国，英国，德国和澳大利亚的科学家组成的国际科研团队，利用复杂气候模型，系统论证了地球轨道变化对气候突变的双重调制机制，为理解更新世气候突变事件的触发机理提供了全新的动力模型。该题为“Direct astronomical influence on abrupt climate variability”的数值模拟工作，于北京时间...
“Scientist as a game”: learning geoscience via competitive activities
Science outreach Education Seismic and volcanic hazard
2015/8/14
Nowadays, science communication is considered as one of the major challenges that research institutions are required to face. The strategies to attract public interest, the choice of the correct langu...
EVALUATION OF GEOSCIENCE LASER ALTIMETER SYSTEM (GLAS) WAVEFORMS FOR VEGETATED LANDSCAPES USING AIRBORNE LASER ALTIMETER SCANNING DATA
LIDAR laser altimetry laser waveform analysis waveform simulations topography vegetation
2015/3/10
The Geoscience Laser Altimeter System aboard NASA’s Ice, Cloud and land Elevation Satellite will record the height distribution of laser energy reflected from surfaces within 70 m diameter footprints....
On Choosing Fourier Transforms for Practical Geoscience Applications
Fourier Transforms Filtering Spectra Impulse Response
2013/3/11
The variety of definitions of Fourier transforms can create confusion for practical applications. This paper examines the choice of formulas for Fourier transforms and determines the appropriate choic...
Recent developments in ASTER Geoscience products for Australia
Recent developments ASTER Geoscience products Australia
2012/3/30
Identifying and mapping regolith materials at the regional and continental-scale can be facilitated via a new generation of remote sensing methods and standardised geoscience products. The multispectr...
New Indivisible Geoscience Paradigm
Indivisible Geoscience Paradigm Earth's interior Geophysics
2011/8/4
Abstract: Earth's interior, I posit, is like one of the rare, oxygen-starved "enstatite chondrite" meteorites (and unlike a more-oxidized "ordinary chondrite" as has been believed for seventy years). ...
Solving Problems of Lithosphere:The First Finnish Workshop on the Global Geoscience Transect (GGT) Project
Lithosphere Workshop Geoscience Transect
2009/6/15
Solving Problems of Lithosphere:The First Finnish Workshop on the Global Geoscience Transect (GGT) Project.
面向e-GeoScience的地学数据共享研究进展
地学信息化科研环境 数据共享 协同研究 网格技术
2007/12/12
Abstract在总结比较国内外e-GeoScience研究进展的基础上，介绍了中国科学院地理科学与资源研究所自20世纪80年代以来开展的相关工作。提出了按“圈层—学科—数据类别”三级模式的地球系统科学数据分类体系，以主体数据库为核心，初步构建了“主体数据库—数据资源点”为支撑的地球系统科学数据资源体系。在J2EE环境下，采用Web Services、地理信息等技术开发了地球系统科学数据共享平台。...
Remote Topographic Mapping for Geoscience.