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Accurate mechanisms for forecasting solar irradiance and insolation provide important information for the planning of renewable energy and agriculture projects as well as for environmental and socio-economical studies. This research…

Machine Learning · Computer Science 2021-06-15 Laura S. Hoyos-Gómez , Jose F. Ruiz-Muñoz , Belizza J. Ruiz-Mendoza

Meteorological satellite imagery is critical for meteorologists. The data have played an important role in monitoring and analyzing weather and climate changes. However, satellite imagery is a kind of observation data and exists a…

Computer Vision and Pattern Recognition · Computer Science 2022-09-26 Fang Huang , Wencong Cheng , PanFeng Wang , ZhiGang Wang , HongHong He

Data assimilation of observational data into full atmospheric states is essential for weather forecast model initialization. Recently, methods for deep generative data assimilation have been proposed which allow for using new input data…

Efficient integration of solar energy into the electricity mix depends on a reliable anticipation of its intermittency. A promising approach to forecast the temporal variability of solar irradiance resulting from the cloud cover dynamics is…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Quentin Paletta , Anthony Hu , Guillaume Arbod , Joan Lasenby

Meteorologists use shapes and movements of clouds in satellite images as indicators of several major types of severe storms. Satellite imaginary data are in increasingly higher resolution, both spatially and temporally, making it impossible…

Computer Vision and Pattern Recognition · Computer Science 2019-06-26 Xinye Zheng , Jianbo Ye , Yukun Chen , Stephen Wistar , Jia Li , Jose A. Piedra-Fernández , Michael A. Steinberg , James Z. Wang

Predicting the short-term power output of a photovoltaic panel is an important task for the efficient management of smart grids. Short-term forecasting at the minute scale, also known as nowcasting, can benefit from sky images captured by…

Computer Vision and Pattern Recognition · Computer Science 2018-10-16 Jinsong Zhang , Rodrigo Verschae , Shohei Nobuhara , Jean-François Lalonde

Interstellar dust grains are responsible for modifying the spectral energy distribution (SED) of galaxies, both absorbing starlight at UV and optical wavelengths and converting this energy into thermal emission in the infrared. The detailed…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Fabio Fontanot , Rachel S. Somerville

In the past few years, Artificial Intelligence (AI)-based weather forecasting methods have widely demonstrated strong competitiveness among the weather forecasting systems. However, these methods are insufficient for high-spatial-resolution…

Atmospheric and Oceanic Physics · Physics 2024-11-18 Xujun Wei , Feng Zhang , Renhe Zhang , Wenwen Li , Cuiping Liu , Bin Guo , Jingwei Li , Haoyang Fu , Xu Tang

Solar activity is one of the main drivers of variability in our solar system and the key source of space weather phenomena that affect Earth and near Earth space. The extensive record of high resolution extreme ultraviolet (EUV)…

Computer Vision and Pattern Recognition · Computer Science 2023-04-17 Mehdi Cherti , Alexander Czernik , Stefan Kesselheim , Frederic Effenberger , Jenia Jitsev

Spectroscopic observations of solar flares provide critical diagnostics of the physical conditions in the flaring atmosphere. Some key features in observed spectra have not yet been accounted for in existing flare models. Here we report a…

Solar and Stellar Astrophysics · Physics 2016-08-16 Fatima Rubio da Costa , Lucia Kleint , Vahé Petrosian , Wei Liu , Joel C. Allred

Here we present a proof of concept for the application of the Variance of Laplacian (VL) method in quantifying the sharpness of optical solar images. We conducted a comprehensive study using over 65,000 individual solar images acquired on…

Instrumentation and Methods for Astrophysics · Physics 2024-05-21 Chu Wing So , Edwin Lok Hei Yuen , Edgar Heung Fat Leung , Jason Chun Shing Pun

This paper presents an online platform showing Thailand solar irradiance map every 30 minutes, available at https://www.cusolarforecast.com. The methodology for estimating global horizontal irradiance (GHI) across Thailand relies on cloud…

Atmospheric and Oceanic Physics · Physics 2024-12-06 Suwichaya Suwanwimolkul , Natanon Tongamrak , Nuttamon Thungka , Naebboon Hoonchareon , Jitkomut Songsiri

The sky is a major component of the appearance of a photograph, and its color and tone can strongly influence the mood of a picture. In nighttime photography, the sky can also suffer from noise and color artifacts. For this reason, there is…

Computer Vision and Pattern Recognition · Computer Science 2020-06-19 Orly Liba , Longqi Cai , Yun-Ta Tsai , Elad Eban , Yair Movshovitz-Attias , Yael Pritch , Huizhong Chen , Jonathan T. Barron

Saturation affects a significant rate of images recorded by the Atmospheric Imaging Assembly on the Solar Dynamics Observatory. This paper describes a computational method and a technological pipeline for the de-saturation of such images,…

Instrumentation and Methods for Astrophysics · Physics 2015-03-10 Richard A Schwartz , Gabriele Torre , Anna Maria Massone , Michele Piana

In this paper we have introduced a novel method for gamma hadron separation in Imaging Atmospheric Cherenkov Telescopes (IACT) using Quantum Machine Learning. IACTs captures images of Extensive Air Showers (EAS) produced from very high…

Instrumentation and Methods for Astrophysics · Physics 2022-11-01 Jashwanth S , Sudeep Ghosh , Neha Shah , Kavitha Yogaraj , Ankhi Roy

The increasing size of solar datasets demands highly efficient and robust analysis methods. This paper presents an approach that can increase the computational efficiency of differential emission measure (DEM) inversions by an order of…

Solar and Stellar Astrophysics · Physics 2019-10-09 James Pickering , Huw Morgan

The quality of images of the Sun obtained from the ground are severely limited by the perturbing effect of the turbulent Earth's atmosphere. The post-facto correction of the images to compensate for the presence of the atmosphere require…

Solar and Stellar Astrophysics · Physics 2018-12-05 A. Asensio Ramos , J. de la Cruz Rodriguez , A. Pastor Yabar

In this paper, we propose a method for cloud removal from visible light RGB satellite images by extending the conditional Generative Adversarial Networks (cGANs) from RGB images to multispectral images. Satellite images have been widely…

Computer Vision and Pattern Recognition · Computer Science 2017-10-16 Kenji Enomoto , Ken Sakurada , Weimin Wang , Hiroshi Fukui , Masashi Matsuoka , Ryosuke Nakamura , Nobuo Kawaguchi

This paper introduces a modular processing chain to derive global high-resolution maps of leaf traits. In particular, we present global maps at 500 m resolution of specific leaf area, leaf dry matter content, leaf nitrogen and phosphorus…

Advanced satellite-born remote sensing instruments produce high-resolution multi-spectral data for much of the globe at a daily cadence. These datasets open up the possibility of improved understanding of cloud dynamics and feedback, which…

Computer Vision and Pattern Recognition · Computer Science 2021-10-29 Takuya Kurihana , Elisabeth Moyer , Rebecca Willett , Davis Gilton , Ian Foster