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Clouds reduce downwelling longwave radiation over land in a warming climate.
Nature
January 2025
Department of Atmospheric and Oceanic Sciences, McGill University, Montreal, Quebec, Canada.
Clouds greatly influence the Earth's energy balance. Observationally constraining cloud radiative feedback, a notably uncertain climate feedback mechanism, is crucial for improving predictions of climate change but, so far, remains an elusive objective, and the feedback may be different over the ocean versus over land. Here we show a local negative surface longwave cloud feedback over land at the southern Great Plains site, constrained by direct long-term observation of spectrally resolved downwelling longwave radiance.
View Article and Find Full Text PDFHiQ-FPAR: A High-Quality and Value-added MODIS Global FPAR Product from 2000 to 2023.
Sci Data
January 2025
Department of Earth and Environment, Boston University, Boston, MA, 02215, USA.
The Fraction of Absorbed Photosynthetically Active Radiation (FPAR) is essential for assessing vegetation's photosynthetic efficiency and ecosystem energy balance. While the MODIS FPAR product provides valuable global data, its reliability is compromised by noise, particularly under poor observation conditions like cloud cover. To solve this problem, we developed the Spatio-Temporal Information Composition Algorithm (STICA), which enhances MODIS FPAR by integrating quality control, spatio-temporal correlations, and original FPAR values, resulting in the High-Quality FPAR (HiQ-FPAR) product.
View Article and Find Full Text PDFImproving early prediction of crop yield in Spanish olive groves using satellite imagery and machine learning.
PLoS One
January 2025
Department of Computer Science, University of Jaén, Jaén, Spain.
In the production sector, the usefulness of predictive systems as a tool for management and decision-making is well known. In the agricultural sector, a correct economic balance of the farm depends on making the right decisions. For this purpose, having information in advance on crop yields is an extraordinary help.
View Article and Find Full Text PDFLeaf nitrogen and phosphorus are more sensitive to environmental factors in dicots than in monocots, globally.
Plant Divers
November 2024
Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
Leaf nitrogen (N) and phosphorus (P) levels provide critical strategies for plant adaptions to changing environments. However, it is unclear whether leaf N and P levels of different plant functional groups (e.g.
View Article and Find Full Text PDFPredicting the impact of dynamic global urban expansion on urban soil organic carbon.
Sci Rep
January 2025
School of Mathematics and Computer Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China.
Urban expansion has triggered significant changes in soil organic carbon (SOC), profoundly affecting the global carbon cycle. The accurate prediction of the global distribution of urban SOC and assessment of the impact of future urban expansion on SOC are essential for urban soil carbon management. By using data from 377 urban locations, this study estimated the global distribution of urban SOC and projected future SOC changes under two socioeconomic scenarios: SSP126 and SSP585.
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