Results 21 to 30 of about 692,259 (288)

Inversion Models for the Retrieval of Total and Tropospheric NO₂ Columns

Atmosphere, 2019
Inversion models for retrieving the total and tropospheric nitrogen dioxide ( NO 2 ) columns from spaceborne remote sensing data are presented.
Song Liu
doaj   +1 more source

Non-Gaussian bivariate modelling with application to atmospheric trace-gas inversion [PDF]

, 2016
Atmospheric trace-gas inversion is the procedure by which the sources and sinks of a trace gas are identified from observations of its mole fraction at isolated locations in space and time. This is inherently a spatio-temporal bivariate inversion problem,
Cressie, Noel, Ganesan, Anita L., Zammit-Mangion, Andrew   +2 more
core   +5 more sources

Leaf Area Index of Summer Maize Estimated Using UAV-Based Multispectral Imageries

Guan'gai paishui xuebao, 2021
【Background】 Leaf area index (LAI) is an indicator of crop health and controls photosynthesis and transpiration of crops, however, its measurement is nontrivial.
XU Honggang, CHEN Zhen, CHENG Qian, LI Zongpeng, LI Peng, FAN Yongshen   +5 more
doaj   +1 more source

Language Model Inversion

, 2023
Language models produce a distribution over the next token; can we use this information to recover the prompt tokens? We consider the problem of language model inversion and show that next-token probabilities contain a surprising amount of information about the preceding text.
Morris, John X., Zhao, Wenting, Chiu, Justin T., Shmatikov, Vitaly, Rush, Alexander M.   +4 more
openaire   +2 more sources

Dynamic Evolution Modeling of a Lake-Terminating Glacier in the Western Himalayas Using a Two-Dimensional Higher-Order Flowline Model

Remote Sensing, 2022
To better understand the future evolution of Jiemayangzong Glacier (JMYZG), the headstream of the Yarlung Zangbo River, we simulated its future ice thickness evolution using a two-dimensional higher-order numerical flowline model.
Zhan Yan, Tong Zhang, Yuzhe Wang, Wei Leng, Minghu Ding, Dongqi Zhang, Cunde Xiao   +6 more
doaj   +1 more source

Research on the Inversion Model of Cultivated Land Quality Using High-Resolution Remote Sensing Data

Agronomy, 2023
Cultivated land quality is an essential measure of cultivated land production capability. Establishing a cultivated land quality inversion model based on high-resolution remote sensing data provides a scientific basis for regional cultivated land ...
Mengmeng Tang, Qiang Wang, Shuai Mei, Chunyang Ying, Zhengbao Gao, Youhua Ma, Hongxiang Hu   +6 more
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Monitoring the Rice Panicle Blast Control Period Based on UAV Multispectral Remote Sensing and Machine Learning

Land, 2023
The heading stage of rice is a critical period for disease control, such as for panicle blast. The rapid and accurate monitoring of rice growth is of great significance for plant protection operations in large areas for mobilizing resources.
Bin Ma, Guangqiao Cao, Chaozhong Hu, Cong Chen   +3 more
doaj   +1 more source

Ensemble Kalman filter for neural network based one-shot inversion

, 2020
We study the use of novel techniques arising in machine learning for inverse problems. Our approach replaces the complex forward model by a neural network, which is trained simultaneously in a one-shot sense when estimating the unknown parameters from ...
Guth, Philipp A., Schillings, Claudia, Weissmann, Simon   +2 more
core   +1 more source

Inversion of soil carbon, nitrogen, and phosphorus in the Yellow River Wetland of Shaanxi Province using field in situ hyperspectroscopy

Frontiers in Soil Science
Soil nitrogen and phosphorus are directly related to soil quality and vegetation growth and are, therefore, a common research topic in studies on global climate change, material cycling, and information exchange in terrestrial ecosystems.
Leichao Nie, Leichao Nie, Leichao Nie, Leichao Nie, Keying Qu, Keying Qu, Keying Qu, Keying Qu, Lijuan Cui, Lijuan Cui, Lijuan Cui, Lijuan Cui, Xiajie Zhai, Xiajie Zhai, Xiajie Zhai, Xiajie Zhai, Xinsheng Zhao, Xinsheng Zhao, Xinsheng Zhao, Xinsheng Zhao, Yinru Lei, Yinru Lei, Yinru Lei, Yinru Lei, Jing Li, Jing Li, Jing Li, Jing Li, Jinzhi Wang, Jinzhi Wang, Jinzhi Wang, Jinzhi Wang, Rumiao Wang, Rumiao Wang, Rumiao Wang, Rumiao Wang, Wei Li, Wei Li, Wei Li, Wei Li   +39 more
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Suitability Evaluation of Typical Drought Index in Soil Moisture Retrieval and Monitoring Based on Optical Images

Remote Sensing, 2020
As a basic agricultural parameter in the formation, transformation, and consumption of surface water resources, soil moisture has a very important influence on the vegetation growth, agricultural production, and healthy operation of regional ecosystems ...
Yan Nie, Ying Tan, Yuqin Deng, Jing Yu
doaj   +1 more source