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We develop a deep learning based convolutional-regression model that estimates the volumetric soil moisture content in the top ~5 cm of soil. Input predictors include Sentinel-1 (active radar), Sentinel-2 (optical imagery), and SMAP…

Atmospheric and Oceanic Physics · Physics 2023-10-17 Vishal Batchu , Grey Nearing , Varun Gulshan

In intensively managed forests in Europe, where forests are divided into stands of small size and may show heterogeneity within stands, a high spatial resolution (10 - 20 meters) is arguably needed to capture the differences in canopy…

Recently it was demonstrated how climate data can be utilized to estimate regional wind power densities. In particular it was shown that the quality of the global scale estimate compared well with regional high resolution studies and a link…

Atmospheric and Oceanic Physics · Physics 2016-10-31 Markus Gross , Vanesa Magar

Comparative analysis of scalar fields is an important problem with various applications including feature-directed visualization and feature tracking in time-varying data. Comparing topological structures that are abstract and succinct…

Graphics · Computer Science 2024-06-06 Raghavendra Sridharamurthy , Vijay Natarajan

When the climate system is forced, e.g. by emission of greenhouse gases, it responds on multiple time scales. As temperatures rise, feedback processes might intensify or weaken. Current methods to analyze feedback strength, however, do not…

Atmospheric and Oceanic Physics · Physics 2021-11-03 Robbin Bastiaansen , Henk A. Dijkstra , Anna S. von der Heydt

We describe techniques for comparing spectra extracted from cosmological simulations and observational data, using the same methodology to link Lyman-alpha properties derived from the simulations with properties derived from observational…

Astrophysics · Physics 2009-11-07 C. E. Petry , C. D. Impey , N. Katz , D. H. Weinberg , L. E. Hernquist

Crop type maps are critical for tracking agricultural land use and estimating crop production. Remote sensing has proven an efficient and reliable tool for creating these maps in regions with abundant ground labels for model training, yet…

Applications · Statistics 2022-12-20 Stefania Di Tommaso , Sherrie Wang , Vivek Vajipey , Noel Gorelick , Rob Strey , David B. Lobell

It is of great importance to track the solar wind back to its photospheric source region and identify the related current sheets; this will provide key information for investigating the origin and predictions of the solar wind. We report a…

Solar and Stellar Astrophysics · Physics 2014-03-05 C. Huang , Y. Y. Yan , G. Li , Y. Y. Deng , B. L. Tan

Soil moisture sensing through biomass or vegetation canopy has challenged researchers, even those who use SAR sensors with penetration capabilities. This is mainly due to the imposed extra time and phase offsets on Radio Frequency (RF)…

Signal Processing · Electrical Eng. & Systems 2024-04-25 Luke Jacobs , Mohamad Alipour , Adam Watts , Elahe Soltanaghai

Aims: Our goal is to develop methodologies to seamlessly track transient solar wind flows viewed by coronagraphs or heliospheric imagers from rapidly varying viewpoints. Methods: We constructed maps of intensity versus time and elongation…

Solar and Stellar Astrophysics · Physics 2021-06-02 A. Nindos , S. Patsourakos , A. Vourlidas , P. C. Liewer , P. Penteado , J. R. Hall

High-resolution mapping of canopy height is essential for forest management and biodiversity monitoring. Although recent studies have led to the advent of deep learning methods using satellite imagery to predict height maps, these…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Thomas Boudras , Martin Schwartz , Rasmus Fensholt , Martin Brandt , Ibrahim Fayad , Jean-Pierre Wigneron , Gabriel Belouze , Fajwel Fogel , Philippe Ciais

Understanding the complex interactions between land surface and atmosphere is essential to improve weather and climate predictions. Various numerical experiments have suggested that regions of strong coupling strength (hotspots) are located…

Atmospheric and Oceanic Physics · Physics 2024-12-05 Jun Yin , Amilcare Porporato

We propose TerraFlow, a novel approach to multimodal, multitemporal learning for Earth observation. TerraFlow builds on temporal training objectives that enable sequence-aware learning across space, time, and modality, while remaining…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Nazar Puriy , Johannes Jakubik , Benedikt Blumenstiel , Konrad Schindler

Monthly streamflow records from a set of gauging stations, selected to form a reference hydrologic network, are analyzed together with precipitation and temperature data to establish whether the streamflows in the Guadalquivir River Basin…

Atmospheric and Oceanic Physics · Physics 2020-08-19 Patricio Yeste , Javier Dorador , Wenceslao Martín-Rosales , Emilio Molero , María Jesús Esteban Parra

We present a new 10-meter map of dominant tree species in Swedish forests accompanied by pixel-level uncertainty estimates. The tree species classification is based on spatiotemporal metrics derived from Sentinel-1 and Sentinel-2 satellite…

Quantitative Methods · Quantitative Biology 2025-12-03 Abdulhakim M. Abdi , Fan Wang

Accurate assessment of atmospheric nitrogen dioxide (NO$_2$) and sulfur dioxide (SO$_2$) is essential for understanding climate-air quality interactions, supporting environmental policy, and protecting public health. Traditional monitoring…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Prasanjit Dey , Soumyabrata Dev , Bianca Schoen-Phelan

Recurrence plots exhibit line structures which represent typical behaviour of the investigated system. The local slope of these line structures is connected with a specific transformation of the time scales of different segments of the…

Chaotic Dynamics · Physics 2007-05-23 Norbert Marwan , Juergen Kurths

We develop information-theoretic measures of spatial structure and pattern in more than one dimension. As is well known, the entropy density of a two-dimensional configuration can be efficiently and accurately estimated via a converging…

Statistical Mechanics · Physics 2009-11-07 David P. Feldman , James P. Crutchfield

The study of exoplanetary atmospheres relies on detecting minute changes in the transit depth at different wavelengths. To date, a number of ground and space based instruments have been used to obtain transmission spectra of exoplanets in…

Earth and Planetary Astrophysics · Physics 2021-03-24 Kai Hou Yip , Quentin Changeat , Billy Edwards , Mario Morvan , Katy L. Chubb , Angelos Tsiaras , Ingo P. Waldmann , Giovanna Tinetti
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